CN106533022B - Horizontal explosion-proof motor for high-temperature leak-free pump - Google Patents
Horizontal explosion-proof motor for high-temperature leak-free pump Download PDFInfo
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- CN106533022B CN106533022B CN201611244169.7A CN201611244169A CN106533022B CN 106533022 B CN106533022 B CN 106533022B CN 201611244169 A CN201611244169 A CN 201611244169A CN 106533022 B CN106533022 B CN 106533022B
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- 239000003921 oil Substances 0.000 claims abstract description 124
- 230000001105 regulatory effect Effects 0.000 claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000009413 insulation Methods 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000000295 fuel oil Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 11
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 239000000110 cooling liquid Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 abstract description 3
- 230000001629 suppression Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000010724 circulating oil Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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Abstract
A horizontal explosion-proof motor for a high-temperature leak-free pump belongs to the field of high Wen Youlei circulating conveying equipment. The method is characterized in that: an oil filling cavity is arranged in the stator shell (1), a heat insulation device is arranged between one end of the rotating shaft (18) and the stator shell (1), the outer side of the stator shell (1) is connected with an oil circulating cooling mechanism (23) and a pressure regulating mechanism (3) through pipelines respectively, a sealing mechanism for isolating the oil filling cavity is sleeved on the outer side of the inner side of the heat insulation device, and a heavy oil circulation channel (206) for filling heavy oil is arranged between the sealing mechanism and the heat insulation device. The invention adopts a horizontal structure, the inner cavity of the motor is filled with oil, the high-temperature conveying temperature borne by the sealing mechanism is shared by the heat insulation device, heavy oil is filled in the heat insulation device, and good sealing is realized by the pressure difference between the two cavities, so that the leakage is avoided. The pressure balance of the internal and external oil pressure of the motor is thoroughly achieved, so that the leakage of oil in the stator shell is thoroughly eliminated, the high Wen Youye conveying can be realized, and the safety and explosion suppression can be also achieved.
Description
Technical Field
A horizontal explosion-proof motor for a high-temperature leak-free pump belongs to the field of high Wen Youlei circulating conveying equipment.
Background
The high-temperature hot oil medium delivery pump is widely applied to the petroleum industry and the chemical industry and is used for delivering high-temperature inflammable and explosive mediums, and once leakage occurs, a fire disaster can be caused. At present, the motor of the high-temperature hot oil medium delivery pump adopts a motor shaft to extend out of the inner cavity of the motor and is connected with the pump through a coupling, so that a shaft seal device is needed to prevent the hot oil medium from leaking. The shaft seal device basically adopts mechanical seal, however, the mechanical seal part of the high-temperature hot oil medium delivery pump bears high temperature for a long time, so that the service life of the mechanical seal part is shorter, the mechanical seal part needs to be regularly maintained and replaced, and the maintenance cost is higher; moreover, the sealing ring of the mechanical seal is easy to generate deformation and thermal cracking at high temperature, and the elastic compensation element loses elasticity and loses compensation capability at high temperature, so that the mechanical seal is suddenly invalid, hot oil medium is leaked outwards, high-temperature oil is easy to cause oil, serious potential safety hazard exists, and the safe operation of the high-temperature oil medium conveying pump is seriously influenced. Moreover, the unbalance of the oil pressure in the motor also easily causes potential safety hazard of oil path transportation.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the horizontal explosion-proof motor for the high-temperature leak-free pump, which overcomes the defects of the prior art, is capable of reasonably adjusting the oil pressure balance in the motor, is safe and explosion-proof, is high in Wen Youye conveying and is effective in leak prevention.
The technical scheme adopted for solving the technical problems is as follows: the horizontal explosion-proof motor for the high-temperature leak-free pump comprises a stator shell, a stator winding sleeved on the inner wall of the stator shell and a rotor winding sleeved on the stator shell through a rotating shaft, and is characterized in that: the stator casing be horizontal installation, be equipped with the oil filling chamber in the stator casing, the outer lane of oil filling chamber is equipped with the cooling water circulation chamber, the stator casing is stretched out to pivot both ends outside, wherein be equipped with heat insulation device between one end and the stator casing, the stator casing outside is respectively through piping connection fluid circulation cooling mechanism and pressure regulating mechanism, fluid circulation cooling mechanism input passes through the inboard oil filling chamber one end in the intercommunication stator casing of heat insulation device, the output passes through the pipeline and directly communicates the oil filling chamber other end, the inside outside suit of heat insulation device keeps apart the sealing mechanism who fills the oil filling chamber, be equipped with the heavy oil circulation chamber passageway of filling heavy oil between sealing mechanism and the heat insulation device.
According to the invention, a horizontal structure is adopted, a main body of the motor is of a double-layer structure, an inner cavity is filled with oil, an outer cavity is filled with cooling water, meanwhile, an oil circulating cooling mechanism and a pressure regulating mechanism which are communicated with an oil filling cavity are respectively arranged outside a stator shell, and the oil in the oil filling cavity is subjected to real-time heat exchange through the oil circulating cooling mechanism, so that the oil in the oil filling cavity is kept at a good working temperature all the time; furthermore, the high-temperature conveying temperature born by the sealing mechanism is shared by the heat insulation device, and heavy oil is filled in the heat insulation device, so that two oil pressure cavities are formed between the heat insulation device and the oil filling cavity, and good sealing is realized through the pressure difference between the two cavities, so that leakage is avoided. Specifically, the oil pressure in the oil filling cavity is flexibly regulated in real time through the pressure regulating mechanism, so that the oil pressure is always slightly larger than the oil pressure in the heat insulation device, the pressure balance of the oil pressure inside and outside the motor is thoroughly achieved, the leakage of the oil in the stator shell is thoroughly avoided, the high Wen Youye conveying can be realized, and the safety and explosion suppression can be realized.
The pressure regulating mechanism comprises a pressure storage tank and a pressure storage tank outflow pipe, the pressure storage tank is communicated with the oil filling cavity of the stator shell through the pressure storage tank outflow pipe, a reversing pressure regulating device is arranged between the pressure storage tank and the pressure storage tank outflow pipe, the top of the reversing pressure regulating device is communicated with a liquid outlet at the bottom of the pressure storage tank, a plurality of pressure regulating one-way valves are arranged in the reversing pressure regulating device, the liquid inlet end of at least one pressure regulating one-way valve is communicated with the liquid outlet, and the liquid outlet end of at least one pressure regulating one-way valve is communicated with the liquid outlet.
The pressure storage tank is communicated with the stator shell through a pipeline, the oil pressure in the inner cavity of the stator shell is in circulation through the outflow pipe of the pressure storage tank no matter pressure relief or pressure boost, a reversing pressure regulating device is arranged below the pressure storage tank, a plurality of check valves with different flow directions are arranged in the reversing pressure regulating device, the purpose of controlling and flexibly regulating the oil pressure regulation is achieved by utilizing the reversing pressure regulating device, circulating oil with pressure can freely select an inlet and an outlet through the flow direction of the check valve in the reversing pressure regulating device, flexible regulation of the oil pressure is achieved, unified regulation is achieved through the reversing pressure regulating device no matter pressure relief or pressure boost, the structure of the equipment is simplified, and the installation space of the equipment is saved.
The liquid outlets are three arranged at the bottom of the pressure storage tank side by side, the pressure regulating one-way valves are longitudinally arranged, and the circulation direction of at least one pressure regulating one-way valve is downward outflow. By using the reversing pressure regulating device and longitudinally arranging the pressure regulating one-way valve, the pressure regulating one-way valve can be kept in an optimal working state to the greatest extent, the working efficiency of the one-way valve is improved, and the service life is prolonged.
The pressure regulating one-way valve adopts two one-way valves with different flow directions, the pressure of 20# heavy diesel oil at the heat shield is about 0.1MPa, the internal pressure of the oil filling cavity of the stator shell is about 0.15MPa, the pressure in the oil filling cavity of the stator shell is always maintained to be larger than the external pressure, when the internal pressure of the oil filling cavity of the stator shell is larger than 0.15, the flow direction is opened towards the one-way pressure regulating valve of the pressure storage tank, pressure relief is realized, and when the internal pressure of the oil filling cavity of the stator shell is smaller than 0.05, the other one-way valve with the flow direction in the device is regulated, oil is returned into the oil filling cavity of the stator shell, and pressure boosting is realized.
The oil circulating cooling mechanism comprises a heat exchange input pipe, a heat exchanger and a heat exchange return pipe, wherein two ends of the heat exchanger are respectively communicated with two ends of the oil filling cavity through the heat exchange input pipe and the heat exchange return pipe, and a filter is arranged on the heat exchange return pipe. By using the filter, dirt particles contained in the oil can be filtered, and the working state of the circulating oil is ensured.
The heat exchanger is horizontally arranged at the top of the stator shell through a bracket and is arranged in parallel with the stator shell. The heat exchanger and the stator shell are horizontally and transversely placed in the same way, so that the heat exchange time of oil in the heat exchange process can be prolonged to the greatest extent, and the heat exchange efficiency of the oil in the circulating heat exchange process can be improved.
The heat insulation device is a heat insulation screen, the heat insulation screen is sleeved at the end part of the rotating shaft, which extends out of the stator shell, and the heat insulation screen comprises an inner side connecting part, a middle oil passing part and an outer end isolating part; a circulating drainage device is arranged between the inner side of the middle oil passing part and the rotating shaft, a heat exchange output channel which is radially arranged on the middle oil passing part is arranged on the outer side of the circulating impeller, and the circulating drainage device is communicated with an oil circulating cooling mechanism through the heat exchange output channel; the inner side connecting part and the middle oil passing part are respectively provided with an inner cavity oil flow hole which can be drained by the circulating drainage device.
The outer ring of the heat shield is provided with a cooling liquid circulation cavity.
The inner connecting part is in conical shape, and a platinum thermal resistor is arranged between the inner side of the inner connecting part and the rotating shaft. The working temperatures of the bearing, the stator winding and the rotor winding arranged in the stator shell can be tested in real time through the platinum thermal resistor, so that the heat exchange rate can be adjusted in time.
The circulating drainage device is a circulating impeller sleeved on the rotating shaft.
The other end of the rotating shaft, which extends out of the stator shell, is provided with a displacement detection device, the displacement detection device comprises a direction-finding disc, and a radial displacement detection mechanism and an axial displacement control mechanism which are respectively arranged on the axial end face of the direction-finding disc, and the direction-finding disc is sleeved at the end part of the rotating shaft and can synchronously rotate along with the rotating shaft. The right end of the motor, the motor rotating shaft stretches out of the stator shell, and a radial and axial detection direction-finding disc of the rotating shaft is added at the tail end, so that the axial and radial displacement change and stress change can be detected in real time.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, a horizontal structure is adopted, a main body of the motor is of a double-layer structure, an inner cavity is filled with oil, an outer cavity is filled with cooling water, meanwhile, an oil circulating cooling mechanism and a pressure regulating mechanism which are communicated with an oil filling cavity are respectively arranged outside a stator shell, and the oil in the oil filling cavity is subjected to real-time heat exchange through the oil circulating cooling mechanism, so that the oil in the oil filling cavity is kept at a good working temperature all the time; furthermore, the high-temperature conveying temperature born by the sealing mechanism is shared by the heat insulation device, and heavy oil is filled in the heat insulation device, so that two oil pressure cavities are formed between the heat insulation device and the oil filling cavity, and good sealing is realized through the pressure difference between the two cavities, so that leakage is avoided. Specifically, the oil pressure in the oil filling cavity is flexibly regulated in real time through the pressure regulating mechanism, so that the oil pressure is always slightly larger than the oil pressure in the heat insulation device, the pressure balance of the oil pressure inside and outside the motor is thoroughly achieved, the leakage of the oil in the stator shell is thoroughly avoided, the high Wen Youye conveying can be realized, and the safety and explosion suppression can be realized.
Drawings
Fig. 1 is a schematic diagram of a front view of a horizontal explosion-proof motor for a high-temperature leak-free pump.
Fig. 2 is a schematic side view of a horizontal flameproof motor for a high temperature leak-free pump.
Fig. 3 is a schematic top view of fig. 2.
Wherein 1, stator housing 2, heat shield 201, inside connecting portion 202, middle oil portion 203, outer end isolation portion 204, circulation impeller 205, platinum thermal resistor 206, heavy oil circulation channel 207, heat exchange output channel 208, inner cavity oil circulation hole 209, cooling liquid circulation cavity 3, pressure regulating mechanism 301, pressure storage tank 302, pressure storage tank outflow pipe 303, reversing pressure regulating device 304, pressure regulating check valve 305, liquid outlet 4, power cable junction box 401, sealing platen 402, cable sealing platen 5, pressure cable terminal 6, inner end bearing housing 7, thrust bearing housing 8, connecting bolt 9, thrust disc 10, thrust bearing 11, key 12, fastening nut 13, first mechanical seal 14, direction finding disc 15, mechanical seal box 16, cooling water circulation cavity 17, rotor winding 18, rotating shaft 19, control cable junction box 20, stator winding 21, second mechanical seal 22, bracket 23, oil circulation cooling mechanism 2301, heat exchange input pipe 2302, heat exchanger 2303, heat exchange return pipe 2304, filter.
Detailed Description
Fig. 1 to 3 are preferred embodiments of the present invention, and the present invention is further described with reference to fig. 1 to 3.
Referring to fig. 1 to 3: the utility model provides a horizontal flameproof motor for high temperature no leakage pump, including stator casing 1, stator winding 20 of stator casing 1 inner wall suit and rotor winding 17 of stator casing 1 through pivot 18 suit, stator casing 1 is horizontal installation, be equipped with the oil filling chamber in the stator casing 1, the outer lane of oil filling chamber is equipped with cooling water circulation chamber 16, the stator casing 1 is stretched out to pivot 18 both ends outside, be equipped with heat insulating device between one of them end of pivot 18 and stator casing 1, stator casing 1 outside is respectively through piping connection fluid circulation cooling mechanism 23 and pressure regulating mechanism 3, fluid circulation cooling mechanism 23 input communicates the oil filling chamber one end in the stator casing 1 through heat insulating device inboard, the output passes through the pipeline direct intercommunication oil filling chamber other end, heat insulating device inside outside suit keeps apart the sealing mechanism of oil filling chamber, be equipped with the heavy oil circulation chamber 206 of filling heavy oil between sealing mechanism and the heat insulating device, sealing mechanism is second mechanical seal 21.
The pressure regulating mechanism 3 comprises a pressure storage tank 301 and a pressure storage tank outflow pipe 302, the pressure storage tank 301 is communicated with an oil filling cavity of the stator shell 1 through the pressure storage tank outflow pipe 302, a reversing pressure regulating device 303 is arranged between the pressure storage tank 301 and the pressure storage tank outflow pipe 302, the top of the reversing pressure regulating device 303 is communicated with a liquid outlet 305 at the bottom of the pressure storage tank 301, a plurality of pressure regulating one-way valves 304 are arranged in the reversing pressure regulating device 303, the liquid inlet end of at least one pressure regulating one-way valve 304 is communicated with the liquid outlet 305, and the liquid outlet end of at least one pressure regulating one-way valve 304 is communicated with the liquid outlet 305. The liquid outlets 305 are three arranged at the bottom of the pressure storage tank 301 side by side, the pressure regulating check valves 304 are longitudinally arranged, and the flowing direction of at least one pressure regulating check valve 304 is downward flowing.
The oil circulating cooling mechanism 23 comprises a heat exchange input pipe 2301, a heat exchanger 2302 and a heat exchange return pipe 2303, wherein two ends of the heat exchanger 2302 are respectively communicated with two ends of an oil filling cavity through the heat exchange input pipe 2301 and the heat exchange return pipe 2303, and a filter 2304 is arranged on the heat exchange return pipe 2303. The heat exchanger 2302 is horizontally installed on the top of the stator housing 1 through a bracket 22, and is disposed in parallel with the stator housing 1.
The heat insulation device is a heat shield 2, the heat shield 2 is sleeved at the end part of the rotating shaft 18 which extends out of the stator shell 1, and the heat shield 2 comprises an inner side connecting part 201, a middle oil passing part 202 and an outer end isolating part 203; a circulation drainage device is arranged between the inner side of the middle oil passing part 202 and the rotating shaft 18, a heat exchange output channel 207 which is radially arranged on the middle oil passing part 202 is arranged on the outer side of the circulation impeller 204, and the heat exchange output channel 207 is communicated with an oil circulation cooling mechanism 23; the inner connecting part 201 and the middle oil passing part 202 are respectively provided with an inner cavity oil passing hole 208 which can be drained by the circulation drainage device. The outer periphery of the heat shield 2 is provided with a cooling liquid circulation chamber 209. The inner connecting portion 201 is tapered, and a platinum thermal resistor 205 is provided between the inner side of the inner connecting portion 201 and the rotating shaft 18. The circulation drainage device is a circulation impeller 204 sleeved on the rotating shaft 18.
The other end of the rotating shaft 18, which extends out of the stator housing 1, is provided with a displacement detection device, and the displacement detection device comprises a direction-finding disc 14, a radial displacement detection mechanism and an axial displacement control mechanism, wherein the radial displacement detection mechanism and the axial displacement control mechanism are respectively arranged on the axial end face of the direction-finding disc 14, and the direction-finding disc 14 is sleeved at the end part of the rotating shaft 18 and can synchronously rotate along with the rotating shaft 18. The center of the direction-finding disc 14 is fixedly connected with a rotating shaft 18, and one side of the inner end surface of the direction-finding disc 14 is provided with a first mechanical seal 13. Specifically, the first mechanical seal 13 is installed at the other end of the rotating shaft 18, which extends out of the stator housing 1, an axial thrust mechanism is arranged on the rotating shaft 18 at the inner side of the first mechanical seal 13, a machine cover 15 is arranged at the outer side of a shaft hole of the axial thrust mechanism, and the direction-finding disc 14 is installed in the machine cover 15.
The axial thrust mechanism comprises an inner end bearing seat 6, a thrust bearing 10, a thrust disc 9 and a thrust bearing seat 7 which are axially arranged side by side, wherein the thrust disc 9 is arranged between the inner end bearing seat 6 and the thrust bearing seat 7, the outer edge of the thrust disc is fixed through a connecting bolt, the thrust bearing 10 is arranged on the inner end bearing seat 6, the thrust bearing 10 is arranged between the thrust disc 9 and the inner end bearing seat 6, and a fastening nut 12 is arranged on the other end face of the thrust disc 9.
As shown in fig. 1, the right end part of the stator housing 1 is fixedly provided with an inner end bearing seat 6 and a thrust bearing seat 7, the inner end bearing seat 6 and the thrust bearing seat 7 are fixedly connected with the end part of the stator housing 1 through a connecting bolt 8, a thrust disc 9 and a thrust bearing 10 are arranged between the inner end bearing seat 6 and the thrust bearing seat 7, the thrust disc 9 is arranged on the right side of the inner end bearing seat 6, a fastening nut 12 is arranged on the right side of the thrust bearing 10, the end part of a rotating shaft 18 on the right side of the fastening nut 12 is sequentially provided with a first mechanical seal 13 and a direction-finding disc 14 from left to right, the first mechanical seal 13 and the outer part of the direction-finding disc 14 are covered with an organic seal box 15, and the organic seal box 15 is fixedly arranged at the central shaft hole of the thrust bearing seat 7.
Working principle and working process:
the motor of the invention conveys a medium at about 350 ℃, oil in an oil filling cavity is not allowed to leak outwards, the leaked high-temperature oil can generate oil combustion, the oil can leak into the motor, the heat shield 2 at the left end of the motor is externally added with 20# heavy diesel oil, the whole inside of the stator shell 1 is filled with oil and isolated from the outside, the oil filling cavity is filled with the oil, the stator shell 1 is externally added with circulating water, and the heat shield 2 is externally added with water. The thrust bearing is provided with a thrust disc pair friction pair, axial force generated by a pump is borne, the rightmost end of the motor and a rotating shaft 18 extend out of the stator shell 1, a direction-finding disc 14 for radial and axial detection of the shaft is added at the tail end, and a filter 2302 is used in a pipeline to filter dirt particles contained in oil.
The pressure storage tank 301 is connected to one side of the oil filling cavity, and has a main function of always maintaining a stable pressure difference in the stator housing 1 and the pumped high-temperature oil medium cavity. The pressure regulating mechanism 3 comprises two pressure regulating one-way valves 304 with different flow directions, the pressure of the 20# heavy diesel oil in the heat shield 2 is about 0.1MPa, the internal pressure of the stator shell 1 is about 0.15MPa, the pressure in the stator shell 1 is always kept to be higher than the external pressure, when the internal pressure of the stator shell 1 is higher than 0.15, the pressure valve is opened for the pressure regulating one-way valve 304 flowing to the pressure storage tank 301, the pressure is relieved, and when the internal pressure of the stator shell 1 is lower than 0.05, the other pressure regulating one-way valve 304 flowing out of the pressure storage tank 301 in the pressure regulating mechanism 3 is opened, and oil returns to the stator shell 1.
During normal operation, the oil in the stator housing 1 is lifted by the circulating impeller 204 rotating along with the rotating shaft 18, enters the heat exchanger 2302 through the heat exchange input pipe 2301 to exchange heat, flows back into the stator housing 1 through the heat exchange return pipe 2303, and flows through the filter 2304 to cool and filter the oil in the back flow process, so that self forced circulation is completed, heat generated by interaction of the electromagnetic windings is taken away, and the temperature of the oil in the oil filling cavity is ensured to be within an allowable range.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a horizontal flameproof motor for high temperature no leakage pump, includes stator casing (1), stator winding (20) of stator casing (1) inner wall suit and rotor winding (17) of passing through pivot (18) suit in stator casing (1), its characterized in that: the stator housing (1) is horizontally arranged, an oil filling cavity is arranged in the stator housing (1), a cooling water circulation cavity (16) is arranged on the outer ring of the oil filling cavity, a heat insulation device is arranged between one end of a rotating shaft (18) and the stator housing (1), the outer side of the stator housing (1) is respectively connected with an oil circulating cooling mechanism (23) and a pressure regulating mechanism (3) through pipelines, the input end of the oil circulating cooling mechanism (23) is communicated with one end of the oil filling cavity in the stator housing (1) through the inner side of the heat insulation device, the output end is directly communicated with the other end of the oil filling cavity through a pipeline, a sealing mechanism for isolating the oil filling cavity is sleeved on the outer side of the heat insulation device, and a heavy oil circulation cavity (206) filled with heavy oil is arranged between the sealing mechanism and the heat insulation device;
the heat insulation device is a heat insulation screen (2), the heat insulation screen (2) is sleeved at the end part of a rotating shaft (18) which extends out of the stator shell (1), and the heat insulation screen (2) comprises an inner side connecting part (201), a middle oil passing part (202) and an outer end isolating part (203); a circulation drainage device is arranged between the inner side of the middle oil passing part (202) and the rotating shaft (18), a heat exchange output channel (207) radially arranged on the middle oil passing part (202) is arranged on the outer side of the circulation impeller (204), and the heat exchange output channel (207) is communicated with an oil circulation cooling mechanism (23); the inner side connecting part (201) and the middle oil passing part (202) are respectively provided with an inner cavity oil flow hole (208) which can be drained through the circulation drainage device;
the inner connecting part (201) is arranged in a conical shape, and a platinum thermal resistor (205) is arranged between the inner side of the inner connecting part (201) and the rotating shaft (18);
the circulating drainage device is a circulating impeller (204) sleeved on the rotating shaft (18).
2. The horizontal flameproof motor for a high-temperature leak-free pump according to claim 1, wherein: the pressure regulating mechanism (3) comprises a pressure storage tank (301) and a pressure storage tank outflow pipe (302), the pressure storage tank (301) is communicated with an oil filling cavity of the stator shell (1) through the pressure storage tank outflow pipe (302), a reversing pressure regulating device (303) is arranged between the pressure storage tank (301) and the pressure storage tank outflow pipe (302), the top of the reversing pressure regulating device (303) is communicated with a liquid outlet (305) at the bottom of the pressure storage tank (301), a plurality of pressure regulating check valves (304) are arranged in the reversing pressure regulating device (303), the liquid inlet end of at least one pressure regulating check valve (304) is communicated with the liquid outlet (305), and the liquid outlet end of at least one pressure regulating check valve (304) is communicated with the liquid outlet (305).
3. The horizontal flameproof motor for a high-temperature leak-free pump according to claim 2, wherein: the liquid outlets (305) are arranged at the bottom of the pressure storage tank (301) side by side, the pressure regulating one-way valves (304) are longitudinally arranged, and the flowing direction of at least one pressure regulating one-way valve (304) is downward flowing.
4. The horizontal flameproof motor for a high-temperature leak-free pump according to claim 1, wherein: the oil circulating cooling mechanism (23) comprises a heat exchange input pipe (2301), a heat exchanger (2302) and a heat exchange return pipe (2303), two ends of the heat exchanger (2302) are respectively communicated with two ends of the oil filling cavity through the heat exchange input pipe (2301) and the heat exchange return pipe (2303), and a filter (2304) is arranged on the heat exchange return pipe (2303).
5. The horizontal flameproof motor for a high-temperature leak-free pump according to claim 4, wherein: the heat exchanger (2302) is horizontally arranged at the top of the stator housing (1) through a bracket (22), and is arranged in parallel with the stator housing (1).
6. The horizontal flameproof motor for a high-temperature leak-free pump according to claim 1, wherein: the outer ring of the heat shield (2) is provided with a cooling liquid circulation cavity (209).
7. The horizontal flameproof motor for a high-temperature leak-free pump according to claim 1, wherein: the other end of the rotating shaft (18) which extends out of the stator shell (1) is provided with a displacement detection device, the displacement detection device comprises a direction-finding disc (14) and a radial displacement detection mechanism and an axial displacement control mechanism which are respectively arranged on the axial end face of the direction-finding disc (14), and the direction-finding disc (14) is sleeved at the end part of the rotating shaft (18) and can synchronously rotate along with the rotating shaft (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611244169.7A CN106533022B (en) | 2016-12-29 | 2016-12-29 | Horizontal explosion-proof motor for high-temperature leak-free pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611244169.7A CN106533022B (en) | 2016-12-29 | 2016-12-29 | Horizontal explosion-proof motor for high-temperature leak-free pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106533022A CN106533022A (en) | 2017-03-22 |
| CN106533022B true CN106533022B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611244169.7A Active CN106533022B (en) | 2016-12-29 | 2016-12-29 | Horizontal explosion-proof motor for high-temperature leak-free pump |
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| Country | Link |
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| CN (1) | CN106533022B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002098237A (en) * | 2000-09-21 | 2002-04-05 | Eagle Ind Co Ltd | Shaft sealing device |
| CN101285480A (en) * | 2008-05-27 | 2008-10-15 | 上海凯泉泵业（集团）有限公司 | High temperature resistant ultra-high pressure kinetic pressure balancing leakage-free pump device |
| CN201204509Y (en) * | 2008-05-24 | 2009-03-04 | 李维熙 | Water-clamping-case radiating explosion-proof diving dual-function motor |
| CN201226472Y (en) * | 2008-05-27 | 2009-04-22 | 上海凯泉泵业（集团）有限公司 | High-temperature high-voltage resistant shielding motor |
| CN102518589A (en) * | 2012-01-10 | 2012-06-27 | 合肥通用机械研究院 | Leakless high-temperature hot oil medium delivery pump |
| CN202798342U (en) * | 2012-07-26 | 2013-03-13 | 浙江创新电机有限公司 | Large-power explosion-suppression type three-phase asynchronous motor with built-in cooler |
| CN202940683U (en) * | 2012-12-05 | 2013-05-15 | 南阳防爆集团股份有限公司 | High-voltage dust explosion-proof three-phase asynchronous motor |
| CN103812261A (en) * | 2013-08-22 | 2014-05-21 | 山东星源矿山设备集团有限公司 | Mining explosion-proof submersible motor for booster pump |
| WO2016107618A1 (en) * | 2014-12-30 | 2016-07-07 | Nidec Gpm Gmbh | Coolant pump |
-
2016
- 2016-12-29 CN CN201611244169.7A patent/CN106533022B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002098237A (en) * | 2000-09-21 | 2002-04-05 | Eagle Ind Co Ltd | Shaft sealing device |
| CN201204509Y (en) * | 2008-05-24 | 2009-03-04 | 李维熙 | Water-clamping-case radiating explosion-proof diving dual-function motor |
| CN101285480A (en) * | 2008-05-27 | 2008-10-15 | 上海凯泉泵业（集团）有限公司 | High temperature resistant ultra-high pressure kinetic pressure balancing leakage-free pump device |
| CN201226472Y (en) * | 2008-05-27 | 2009-04-22 | 上海凯泉泵业（集团）有限公司 | High-temperature high-voltage resistant shielding motor |
| CN102518589A (en) * | 2012-01-10 | 2012-06-27 | 合肥通用机械研究院 | Leakless high-temperature hot oil medium delivery pump |
| CN202798342U (en) * | 2012-07-26 | 2013-03-13 | 浙江创新电机有限公司 | Large-power explosion-suppression type three-phase asynchronous motor with built-in cooler |
| CN202940683U (en) * | 2012-12-05 | 2013-05-15 | 南阳防爆集团股份有限公司 | High-voltage dust explosion-proof three-phase asynchronous motor |
| CN103812261A (en) * | 2013-08-22 | 2014-05-21 | 山东星源矿山设备集团有限公司 | Mining explosion-proof submersible motor for booster pump |
| WO2016107618A1 (en) * | 2014-12-30 | 2016-07-07 | Nidec Gpm Gmbh | Coolant pump |
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| CN106533022A (en) | 2017-03-22 |
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Effective date of registration: 20240411 Address after: No. 89 Henglihe, Qiugu Village, Shantou Street, Boshan District, Zibo City, Shandong Province, 255200 Patentee after: Shandong lutexi Pump Co.,Ltd. Country or region after: China Address before: 255200, Shandong Province, Boshan District, Zibo Province, autumn Valley, cross river 89 Patentee before: SHANDONG YANSHAN PUMPS Co.,Ltd. Country or region before: China |