CN107882766B - Hot air circulation system of guide bearing of high-temperature pump - Google Patents
Hot air circulation system of guide bearing of high-temperature pump Download PDFInfo
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- CN107882766B CN107882766B CN201711088334.9A CN201711088334A CN107882766B CN 107882766 B CN107882766 B CN 107882766B CN 201711088334 A CN201711088334 A CN 201711088334A CN 107882766 B CN107882766 B CN 107882766B
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- Prior art keywords
- guide bearing
- hot air
- gland
- pipe
- main shaft
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 210000004907 gland Anatomy 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract 3
- 239000012530 fluid Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 3
- 238000011010 flushing procedure Methods 0.000 description 7
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- 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
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
-
- 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
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a hot air circulation system of a guide bearing of a high-temperature pump, which mainly comprises a water inlet section (1), an impeller (2), a guide shell (3), a lock nut (4), a guide bearing I (5), a main shaft (6), a water pumping pipe (7), a hot box body (8), an overflow pipe (10) of a fan (9), a sealing cock (11), a shaft jacket (12), a water discharging elbow pipe (13), a guide bearing II (14), a gland (15), a labyrinth sealing rotating body (16), a valve (17) and a gas-liquid separation device (18), wherein the hot air system is built by pressurizing the fan through heat of the pump, so that the guide bearing is washed and protected, the safety margin of the pump during operation and maintenance is improved, the phenomenon of medium residues easily occurring in the gap between the guide bearing and the shaft during normal shutdown or shutdown maintenance of the high-temperature pump is well solved, the risks such as rotor blocking and even blocking are avoided, and the stability and reliability of the whole pump are greatly improved.
Description
Technical Field
The invention mainly relates to the field of fluid machinery, in particular to a hot air circulation system of a guide bearing of a high-temperature pump.
Background
At present, the demand of industrial pumps is increasing, industrial pump devices are developed to be large-sized (high capacity, high efficiency, reliability, low noise and automation), however, the development of large-sized industrial pumps is difficult to break through in China, and most of industrial pumps are dependent on import. The development of high-temperature molten salt pumps and high-temperature heavy metal pumps is a development direction of domestic pump industry in recent years, however, the products still have a plurality of technical difficulties to be solved, the pumps are in a vertical long-shaft pump structure, most of the whole pumps are soaked in high-temperature media and are arranged in a sealed heating storage tank to operate, guide bearings of the pumps can be well lubricated during normal operation, the high-temperature molten salt pumps and the high-temperature heavy metal pumps have good stability, when the pumps are normally stopped or stopped to be lifted out for maintenance, the radial gap between the guide bearings and the shafts is usually only 0.15-1mm, the medium residues are easily caused in the gap between the guide bearings and the shafts due to the influence of liquid media liquid film tension, and when the pumps are lifted out, the danger that rotor blocking and even clamping are caused due to the fact that molten salt precipitation and heavy metals are changed from liquid state to solid state is easy to cause equipment damage and cannot be used.
Disclosure of Invention
In order to solve the problems in the prior art, aiming at the problem that the medium residue phenomenon easily occurs in the gap between the guide bearing and the shaft when the high-temperature pump is normally stopped or overhauled, the problems that the rotor is blocked or even blocked due to the fact that the fused salt is separated out and heavy metal is changed from a liquid state to a solid state after the temperature of the pump is reduced, equipment is damaged and the like are solved. The invention provides a hot air circulation system of a guide bearing of a high-temperature pump.
The invention is realized by the following technical scheme:
the utility model provides a high temperature pump guide bearing hot air circulation system, this high temperature pump and hot air circulation system mainly comprises section of intaking (1), impeller (2), shell casing (3), lock nut (4), guide bearing one (5), main shaft (6), water lifting pipe (7), hot box (8), fan (9) overflow pipe (10), sealed cock (11), axle sheath (12), drainage return bend (13), guide bearing two (14), gland (15), labyrinth seal rotator (16), valve (17) and gas-liquid separation device (18), its characterized in that:
the water inlet section (1) is arranged on the guide shell (3) and is fixedly connected through a bolt, the impeller (2) is fixedly arranged at one end of the main shaft (6) through a lock nut (4), the impeller is arranged in an inner space formed by the water inlet section (1) and the guide shell (3), a mouth ring gap is formed between the water inlet section (1) and the impeller (2), the annular outer side of the guide bearing I (5) is arranged at the inner side of an inner cover plate of the guide shell (3) through interference fit, a certain radial gap is formed between the annular inner side of the guide bearing I (5) and the main shaft (6), the guide shell (3) is fixedly connected with one end of the water lifting pipe (7) through a bolt, and the other end of the water lifting pipe (7) is fixedly arranged below the drain elbow pipe (13) through a bolt;
the shaft sheath (12) is arranged in an inner space formed by the water raising pipe (7) and the water draining elbow pipe (13), the main shaft (6) is surrounded, one end of the shaft sheath (12) is arranged on the guide shell (3), static fit connection is realized between the inner ring of the guide bearing (14) and the main shaft (6) at the outlet of the inner cover plate of the guide shell (3), the other end of the shaft sheath is arranged on the water draining elbow pipe (13), a certain radial clearance is arranged between the shaft sheath (12) and the main shaft (6), the radial clearance is 2-4mm, the shaft sheath (12) is far away from the impeller end and is arranged into a barrel-shaped structure, the support of a guide bearing II (14) can be realized, the outer ring of the guide bearing II (14) is arranged in the barrel-shaped structure of the shaft sheath (12) through transition fit, the gland (15) is pressed, the inner ring of the guide bearing II (14) and the main shaft (6) form a certain radial clearance, the radial clearance is 2-4mm, a pressure relief hole (d) is formed near the middle part of the shaft sheath (12), the shaft sheath (12) is connected with the shaft sheath (12) through a matched thread, the water raising pipe (7) is far away from the impeller end, the water raising pipe (7) is connected with a water heating device (18), the water inlet pipe (17) is connected with a water inlet and a water outlet pipe (18) and a gas-air-separating device (18) in a sealed container, the liquid outlet is communicated with the fluid medium of the heating storage tank;
the gland (15) is arranged at the upper end of the drain elbow (13) and is fixedly connected with the drain elbow (13) through a bolt, one end of the gland is used for compressing the guide bearing II (14), the other end of the gland is used for forming a labyrinth seal end, the labyrinth seal rotating body (16) is arranged in the gland, a shaft seal is formed through mutual clearance fit between the gland (15) and the sealing rotating body (16), an annular radial space is arranged between a part below the labyrinth seal rotating body (16) and the main shaft (6) of the gland (15), the radial clearance between the gland and the main shaft is 2-3 times of the radial clearance between the guide bearing II (14) and the main shaft (6), and besides, a gland inflow hole (c) is formed on one side of a flange of the gland (15) and is communicated with the annular radial space;
an annular sealed hot air box (8) is arranged on the outer side of the water lifting pipe (7), the hot air box (8) is fixedly connected with the vicinity of the middle part of the water lifting pipe (7) in a welding mode, a plurality of annular inner wall flow guiding heat exchange plates (81) and outer wall flow guiding heat exchange plates (82) which are alternately arranged are arranged in an inner space formed by the outer side of the water lifting pipe (7) and the hot air box (8), meanwhile, a hot air box inlet hole (a) and a hot air box outlet hole (b) are respectively formed in one side of the bottom and the top of the hot air box (8), and the hot air box outlet hole (b) is communicated with a fan (9) and then is communicated with a gland inlet hole (c);
the guide bearing I (5), the guide bearing II (14), the gland (15) and the labyrinth seal rotating body (16) are all made of high-temperature resistant materials.
The working principle of the high-temperature pump sealing hot air circulation system is as follows:
when the pump normally operates, the valve (17) is opened, inert gas is introduced from the hot air box inlet hole (a), inert hot air flow is formed after heat exchange of the hot air box (8) and flows out from the hot air box outlet hole (b), the inert hot air flows into the gland inlet hole (c) after being pressurized by the fan (9), the second guide bearing (14) is subjected to hot air flushing and protection, the liquid medium is pressurized by the impeller (2) to form high-pressure fluid, the high-pressure fluid flows into a gap between the first guide bearing (5) and the main shaft (6), lubrication and flushing are formed on the first guide bearing (5), the lubricating and flushing are performed, the inert air flows into the gap between the shaft sheath (12) and the main shaft (6), the fan (9) is adjusted under reasonable working conditions, the inert hot air flows out from the overflow pipe (10) together with the fluid medium flowing out from the first guide bearing (5), and the liquid mixed medium flowing out from the overflow pipe (10) is separated by the gas-liquid separation device (18), and the inert air flows back into the hot air box inlet hole (a), and the liquid medium flows into the heating storage tank for recycling of the medium; when the pump unit is required to be stopped and overhauled, the valve (17) of the overflow pipe (10) is closed first, the fan (9) continues to work, high-pressure inert hot-flow gas flows through the guide bearing II (14) and the guide bearing I (5) in sequence, flushing of the guide bearing II (14) and the guide bearing I (5) is completed, and residues of liquid media in bearing gaps are avoided.
Compared with the prior art, the invention has the beneficial effects that:
the problems of rotor jamming, even jamming danger and the like can be well solved, the safety of equipment is ensured, and the stability and reliability of the whole machine are greatly improved.
Drawings
FIG. 1 is a schematic diagram of a hot air circulation system with a guide bearing for a high temperature pump according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
in the figure: 1. a water inlet section; 2. an impeller; 3. a diversion shell; 4. a lock nut; 5. a guide bearing I; 6. a main shaft; 7. a water lifting pipe; 8. a hot box; 9. a blower; 10. an overflow pipe; 11. a sealing cock; 12. a shaft sheath; 13. a drain trap; 14. a guide bearing II; 15. a gland; 16. a labyrinth seal rotating body; 17. a valve; 18. a gas-liquid separation device; 81. an inner wall diversion heat exchanger; 82. an outer wall diversion heat exchanger, a. A hot air box flow inlet hole; b. a hot air box outflow hole; c. pressing the cover into the flow hole; d. and an overflow hole.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description, but the scope of the invention is not limited thereto.
Referring to fig. 1, which is a schematic diagram of an embodiment of a hot air circulation system of a guide bearing of a high-temperature pump according to the present invention, fig. 2 is a partially enlarged view of a portion a in fig. 1, and the high-temperature pump and the hot air circulation system thereof mainly include a water inlet section 1, an impeller 2, a guide shell 3, a lock nut 4, a guide bearing one 5, a main shaft 6, a water raising pipe 7, a hot box 8, a fan 9 overflow pipe 10, a sealing cock 11, a shaft jacket 12, a drain elbow 13, a guide bearing two 14, a gland 15, a labyrinth seal rotating body 16, a valve 17, and a gas-liquid separation device 18; the method is characterized in that:
the water inlet section 1 is arranged on the guide shell 3 and is fixedly connected with the guide shell through a bolt, the impeller 2 is fixedly arranged at one end of the main shaft 6 through a lock nut 4 and is arranged in an inner space formed by the water inlet section 1 and the guide shell 3, a mouth ring gap is formed between the water inlet section 1 and the impeller 2, the outer side of a ring of the guide bearing I5 is arranged at the inner side of an inner cover plate of the guide shell 3 through interference fit, a certain radial gap is formed between the inner side of the ring of the guide bearing I5 and the main shaft 6, the guide shell 3 is fixedly connected with one end of the water pumping pipe 7 through a bolt, and the other end of the water pumping pipe 7 is fixedly arranged below the drainage bent pipe 13 through a bolt;
the shaft sheath 12 is arranged in an inner space formed by the water raising pipe 7 and the water draining elbow pipe 13, so as to surround the main shaft 6, one end of the shaft sheath 12 is arranged on the guide shell 3 and is in static fit connection with an outlet of an inner cover plate of the guide shell 3, the other end of the shaft sheath 12 is arranged on the water draining elbow pipe 13, a certain radial gap is arranged between the shaft sheath 12 and the main shaft 6, the radial gap is 2-4mm, the shaft sheath 12 is arranged in a barrel-shaped structure far away from an impeller end, so that the support of a guide bearing II 14 can be realized, an outer ring of the guide bearing II 14 is arranged in the barrel-shaped structure of the shaft sheath 12 through transition fit, the inner ring of the guide bearing II 14 and the main shaft 6 are pressed by the pressing cover 15, a certain radial gap is formed, the radial gap is 2-4mm, an overflow cock hole d is formed near the middle part of the shaft sheath 12, the overflow pipe 10 is connected with the shaft sheath 12 through a matched thread, the overflow pipe 10 is sealed with the water raising pipe 7 through a sealing cock 11, a valve 17 is arranged on the overflow pipe 10, and a gas-liquid separator 18 which is also immersed in a heating storage tank is connected with a liquid separator, and a liquid separator is connected with a liquid inlet of a liquid separator, and a liquid medium is connected with a liquid separator in the storage tank;
the gland 15 is arranged at the upper end of the drain elbow 13 and fixedly connected with the drain elbow 13 through a bolt, one end of the gland is used for compressing the guide bearing II 14, the other end of the gland is provided with a labyrinth seal end, the labyrinth seal rotating body 16 is arranged in the labyrinth seal rotating body, a shaft seal is formed through mutual clearance fit between the gland 15 and the sealing rotating body 16, an annular radial space is arranged between the part of the gland 15 below the labyrinth seal rotating body 16 and the main shaft 6, the radial clearance between the gland 15 and the main shaft is 2-3 times of the radial clearance between the guide bearing II 14 and the main shaft 6, and besides, a gland inflow hole c is formed on one side of a flange of the gland 15 and is communicated with the annular radial space;
an annular sealed hot air box 8 is arranged on the outer side of the water raising pipe 7, the hot air box 8 is fixedly connected with the vicinity of the middle part of the water raising pipe 7 in a welding mode, a plurality of annular inner wall flow guiding heat exchangers 81 and outer wall flow guiding heat exchangers 82 which are alternately arranged in an inner space formed by the outer side of the water raising pipe 7 and the hot air box 8, meanwhile, a hot air box inlet hole a and a hot air box outlet hole b are respectively formed on one side of the bottom and the top of the hot air box 8, and the hot air box outlet hole b is communicated with a fan 9 and then is communicated with a gland inlet hole c;
the working principle of the high-temperature pump sealing hot air circulation system is as follows:
when the pump normally operates, the valve 17 is opened, inert gas is introduced from the hot air box inlet hole a, inert hot air is formed after heat exchange of the hot air box 8, the inert hot air flows out from the hot air box outlet hole b, the inert air flows into the gland inlet hole c after being pressurized by the fan 9, hot air flushing and protection are formed on the guide bearing II 14, high-pressure fluid is formed after the liquid medium is pressurized by the impeller 2, lubrication and flushing are formed on the guide bearing I5 through a gap between the guide bearing I5 and the main shaft 6, the lubricating and flushing flow into a gap between the shaft sheath 12 and the main shaft 6 after that, the fan 9 is adjusted to enable the fluid medium flowing through the guide bearing I5 and the inert hot air flowing through the guide bearing II 14 to flow out from the overflow pipe 10 under reasonable working conditions, and after the gas-liquid mixed medium flowing out from the overflow pipe 10 is separated by the gas-liquid separation device 18, the inert air flows back into the hot air box inlet hole a, and the liquid medium flows into the heating storage tank, and medium is recycled; when the pump unit is required to be stopped and overhauled, the valve 17 of the overflow pipe 10 is closed first, the fan 9 continues to work, and high-pressure inert hot-flow gas flows through the guide bearing II 14 and the guide bearing I5 in sequence, so that the guide bearing II 14 and the guide bearing I5 are washed, and the liquid medium is prevented from remaining in bearing gaps.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides a high temperature pump guide bearing hot air circulation system, mainly includes inlet segment (1), impeller (2), shell (3), lock nut (4), guide bearing one (5), main shaft (6), water lifting pipe (7), hot-blast case (8), fan (9) overflow pipe (10), sealed cock (11), axle sheath (12), drainage return bend (13), guide bearing two (14), gland (15), labyrinth seal rotator (16), valve (17) and gas-liquid separation device (18), its characterized in that:
the water inlet section (1) is arranged on the guide shell (3) and is fixedly connected through a bolt, the impeller (2) is fixedly arranged at one end of the main shaft (6) through a lock nut (4), the impeller is arranged in an inner space formed by the water inlet section (1) and the guide shell (3), a mouth ring gap is formed between the water inlet section (1) and the impeller (2), the annular outer side of the guide bearing I (5) is arranged at the inner side of an inner cover plate of the guide shell (3) through interference fit, a certain radial gap is formed between the annular inner side of the guide bearing I (5) and the main shaft (6), the guide shell (3) is fixedly connected with one end of the water lifting pipe (7) through a bolt, and the other end of the water lifting pipe (7) is fixedly arranged below the drain elbow pipe (13) through a bolt;
the shaft sheath (12) is arranged in an inner space formed by the water raising pipe (7) and the water discharging elbow pipe (13), the main shaft (6) is surrounded, one end of the shaft sheath (12) is arranged on the guide shell (3), static fit connection is realized at the outlet of the inner cover plate of the guide shell (3), the other end of the shaft sheath is arranged on the water discharging elbow pipe (13), a certain radial clearance is arranged between the shaft sheath (12) and the main shaft (6), the shaft sheath (12) is far away from the impeller end and is arranged into a barrel-shaped structure, the support of a guide bearing II (14) can be realized, the outer ring of the guide bearing II (14) is arranged in the barrel-shaped structure of the shaft sheath (12) through transition fit, the gland (15) is pressed, the inner ring of the guide bearing II (14) and the main shaft (6) form a certain radial clearance, an overflow hole (d) is formed near the middle part of the shaft sheath (12), the overflow pipe (10) is connected with the shaft sheath (12) through matched threads, the outside the through-through water raising pipe (7), the overflow pipe (10) and the water raising pipe (7) are connected with a sealing device (11) in a sealing way, a gas-liquid separating device (18) is arranged in a gas-liquid separating tank (18) and a gas-liquid separating device is arranged in the tank, the liquid outlet is communicated with the fluid medium of the heating storage tank;
the gland (15) is arranged at the upper end of the drain elbow (13), is fixedly connected with the drain elbow (13) through a bolt, one end of the gland is used for compressing the guide bearing II (14), the other end of the gland is provided with a labyrinth sealing end, the labyrinth sealing rotating body (16) is arranged in the gland, a shaft seal is formed through mutual clearance fit between the gland (15) and the sealing rotating body (16), an annular radial space is arranged between a part below the labyrinth sealing rotating body (16) and the main shaft (6) by the gland (15), and besides, a gland inflow hole (c) is formed on one side of a flange of the gland (15) and is communicated with the annular radial space;
the hot air box is characterized in that an annular sealed hot air box (8) is arranged on the outer side of the water lifting pipe (7), the hot air box (8) is fixedly connected with the vicinity of the middle of the water lifting pipe (7) in a welding mode, annular inner wall flow guiding heat exchange fins (81) and outer wall flow guiding heat exchange fins (82) which are arranged alternately are arranged in an inner space formed by the outer side of the water lifting pipe (7) and the hot air box (8), meanwhile, a hot air box inlet hole (a) and a hot air box outlet hole (b) are formed in one side of the bottom and the top of the hot air box (8) respectively, and the hot air box outlet hole (b) is communicated with a fan (9) and then is communicated with a gland inlet hole (c).
2. A high temperature pump guide bearing hot air circulation system as claimed in claim 1, wherein: the radial clearance between the shaft sheath (12) and the main shaft (6) is 2-4mm.
3. A high temperature pump guide bearing hot air circulation system as claimed in claim 1, wherein: the radial clearance between the inner ring of the second guide bearing (14) and the main shaft (6) is 2-4mm.
4. A high temperature pump guide bearing hot air circulation system as claimed in claim 1, wherein: the radial clearance between the annular radial space formed between the gland (15) and the main shaft (6) and the radial clearance between the guide bearing II (14) and the main shaft (6) is 2-3 times.
5. A high temperature pump guide bearing hot air circulation system as claimed in claim 1, wherein: the guide bearing I (5), the guide bearing II (14), the gland (15) and the labyrinth seal rotating body (16) are all made of high-temperature resistant materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088334.9A CN107882766B (en) | 2017-11-08 | 2017-11-08 | Hot air circulation system of guide bearing of high-temperature pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088334.9A CN107882766B (en) | 2017-11-08 | 2017-11-08 | Hot air circulation system of guide bearing of high-temperature pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107882766A CN107882766A (en) | 2018-04-06 |
| CN107882766B true CN107882766B (en) | 2024-01-12 |
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ID=61779316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711088334.9A Active CN107882766B (en) | 2017-11-08 | 2017-11-08 | Hot air circulation system of guide bearing of high-temperature pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882766B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895034A (en) * | 2018-07-18 | 2018-11-27 | 江苏长凯机械设备有限公司 | A kind of mechanical seal air blast cooling self-cooling structure of heat-exchanger pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203146430U (en) * | 2013-02-22 | 2013-08-21 | 江苏大学 | High-temperature self-cooling hot water circulation pump |
| JP2014013027A (en) * | 2012-07-05 | 2014-01-23 | Torishima Pump Mfg Co Ltd | Pump bearing cleaning device and pump bearing cleaning method |
| CN105864093A (en) * | 2016-05-25 | 2016-08-17 | 浙江科尔泵业股份有限公司 | Multistage centrifugal high pressure liquefied hydrocarbon pump |
| CN207393542U (en) * | 2017-11-08 | 2018-05-22 | 江苏国泉泵业制造有限公司 | A kind of high-temperature pump guide bearing hot air circulating system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10907640B2 (en) * | 2016-02-16 | 2021-02-02 | Apgn Inc. | Gas turbine blower/pump |
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2017
- 2017-11-08 CN CN201711088334.9A patent/CN107882766B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014013027A (en) * | 2012-07-05 | 2014-01-23 | Torishima Pump Mfg Co Ltd | Pump bearing cleaning device and pump bearing cleaning method |
| CN203146430U (en) * | 2013-02-22 | 2013-08-21 | 江苏大学 | High-temperature self-cooling hot water circulation pump |
| CN105864093A (en) * | 2016-05-25 | 2016-08-17 | 浙江科尔泵业股份有限公司 | Multistage centrifugal high pressure liquefied hydrocarbon pump |
| CN207393542U (en) * | 2017-11-08 | 2018-05-22 | 江苏国泉泵业制造有限公司 | A kind of high-temperature pump guide bearing hot air circulating system |
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| Publication number | Publication date |
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| CN107882766A (en) | 2018-04-06 |
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