CN115614285B - Vertical high-temperature long-shaft molten salt pump - Google Patents
Vertical high-temperature long-shaft molten salt pump Download PDFInfo
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- CN115614285B CN115614285B CN202211638047.1A CN202211638047A CN115614285B CN 115614285 B CN115614285 B CN 115614285B CN 202211638047 A CN202211638047 A CN 202211638047A CN 115614285 B CN115614285 B CN 115614285B
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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
- F04D3/00—Axial-flow pumps
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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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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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
- F04D13/00—Pumping installations or systems
- F04D13/12—Combinations of two or more pumps
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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
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
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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
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A vertical high-temperature long-axis molten salt pump comprises a bottom cavity with a material suction port, wherein a pressurizing and discharging section is hermetically connected to the bottom cavity, the top of the pressurizing and discharging section is hermetically connected with an upper cavity with a material discharge port, and an engine oil tank, a transmission mechanism and a driving motor are sequentially arranged above the upper cavity; the pressurizing and discharging section comprises a plurality of pressurizing pipes, two ends of each pressurizing pipe are provided with strip-shaped grooves, and the strip-shaped grooves at the two ends of each pressurizing pipe are respectively embedded in the bottom cavity and the upper cavity in a sealing manner; a long shaft with a multi-stage supercharging impeller is arranged in the supercharging pipe, a first transmission shaft is fixed at the top end of the long shaft, the first transmission shaft penetrates through the engine oil tank to be connected with a transmission mechanism, and the transmission mechanism is connected with a driving motor; a plurality of engine oil covers are arranged on the side wall of the engine oil tank. The invention increases the pumping capacity, can quickly replace the motor, has high transmission efficiency, and is convenient to replace parts and maintain.
Description
Technical Field
The invention belongs to the technical field of long shaft pumps, and particularly relates to a vertical high-temperature long shaft molten salt pump.
Background
The molten salt pump is a pump specially used for conveying high-temperature molten salt, is widely used in industrial departments such as ionic membrane caustic soda, alumina, melamine, organic chemical industry and the like, and can also be used for conveying other high-temperature liquid without special medium of solid particles. According to the structural form, the device can be divided into a molten salt submerged pump, a molten salt axial-flow pump and a molten salt circulating pump; the molten salt submerged pump is a low-flow high-lift wareway molten salt pump, is a centrifugal impeller, and is most widely applied. The fused salt axial-flow pump is a large-flow small-lift fused salt pump, and the impeller is an axial-flow impeller, so that the fused salt axial-flow pump is particularly suitable for large-flow fused salt heat exchange occasions in the chemical industry. The influence of high-temperature and high-pressure molten salt on the bearing and the sealing device is large, the service life of the molten salt pump is shortened, and the replacement cost is high due to a plurality of easily damaged parts in the molten salt pump. Chinese utility model patent with application number CN201420829104.9 provides a vertical high temperature long axis molten salt pump, utilizes multistage impeller for molten salt is sealed flow distribution chamber of faster entering, improves work efficiency. However, researches show that most of vertical high-temperature long-shaft molten salt pumps are complex in structure, troublesome in disassembly, maintenance and replacement of parts, and high in pump body start and stop cost. Molten salt needs to be cleaned in time after the pump body stops rotating, otherwise, the pump body pipe is easily blocked. Maintenance of the pump body bearings is required during operation of the pump body, with the risk of tube blockage if the start-up time is too long. When the pump body motor breaks down, the disassembly motor is maintained and stopped for a long time, so that the pipeline is easily blocked, and the maintenance time and the maintenance cost are increased.
Disclosure of Invention
The invention aims to provide a vertical high-temperature long-shaft molten salt pump, which has the advantages that the pumping capacity is increased, the motor can be replaced quickly, the transmission efficiency is high, and meanwhile, the replacement of parts and maintenance are convenient.
The technical scheme adopted by the invention is as follows:
a vertical high-temperature long-axis molten salt pump comprises a bottom cavity with a material sucking port, wherein a pressurizing and discharging section is hermetically connected to the bottom cavity, the top of the pressurizing and discharging section is hermetically connected with an upper cavity with a material discharging port, and an engine oil tank, a transmission mechanism and a driving motor are sequentially arranged above the upper cavity;
the pressurizing and discharging section comprises a plurality of pressurizing pipes, two ends of each pressurizing pipe are provided with strip-shaped grooves, and the strip-shaped grooves at the two ends of each pressurizing pipe are respectively embedded in the bottom cavity and the upper cavity in a sealing manner;
a long shaft with a multi-stage supercharging impeller is arranged in the supercharging pipe, a first transmission shaft is fixed at the top end of the long shaft, the first transmission shaft penetrates through the engine oil tank to be connected with a transmission mechanism, and the transmission mechanism is connected with a driving motor; a plurality of engine oil covers are arranged on the side wall of the engine oil tank.
According to the invention, the plurality of booster pipes are arranged, so that the pumping capacity is greatly improved, and the multi-stage booster impeller can improve the pumping pressure.
Furthermore, a sealing bearing is arranged at the joint of the first transmission shaft and the long shaft.
The sealed bearing completely separates molten salt to be pumped from engine oil, and prevents molten salt pollution when engine oil is added or parts above an engine oil tank are replaced.
Furthermore, the number of the pressure increasing pipes is 3.
Furthermore, a supporting and protecting shell is arranged on the outer side of the pressure increasing pipe, and the lower end and the upper end of the supporting and protecting shell are fixedly connected with the bottom cavity and the upper cavity respectively.
Furthermore, a stirring rod is fixed on the first transmission shaft.
The stirring rod stirs the oil, preventing settling and agglomeration into lumps.
Furthermore, the transmission mechanism comprises a first support frame and a second support frame which are fixed at the top of the engine oil tank, a second transmission shaft is rotationally arranged in the first support frame, a first intermediate gear is fixed on the second transmission shaft, a third transmission shaft is rotationally arranged on the second support frame, an outer upper gear and an outer intermediate gear are fixed on the third transmission shaft, an outer lower gear is fixed at the top of the first transmission shaft, a fourth transmission shaft is rotationally arranged at the top of the engine oil tank, and a second intermediate gear and a third intermediate gear are fixed on the fourth transmission shaft;
the first intermediate gear is meshed with the outer upper gear, the second intermediate gear is meshed with the outer intermediate gear, and the third intermediate gear is meshed with the outer lower gear; and a rotating shaft of the driving motor is sleeved with the second transmission shaft through a spline.
Through setting up three-layer gear, can reduce motor speed to the utmost extent, adapt to the low rotational speed requirement of major axis.
Furthermore, a heat dissipation protective shell is arranged outside the transmission mechanism, a motor replacement mechanism is fixed on the heat dissipation protective shell and comprises a frame body fixed on the heat dissipation protective shell, two vertical sliding columns are arranged in the frame body, a first spring and a sliding plate are sleeved on the vertical sliding columns, a support column is fixed on the sliding plate and penetrates through the frame body upwards, and a conversion plate is rotatably arranged at the top of the support column; a side plate is further fixed on the frame body, two transverse sliding columns are fixed on the side plate, a second spring is sleeved on each transverse sliding column, a push-pull plate is arranged on each side plate in a sliding mode and is connected with the transverse sliding columns in a sliding mode, and a wedge-shaped surface is arranged at the end portion of each push-pull plate;
two driving motors with the same performance are fixed on the conversion plate, and the two driving motors are symmetrical with the vertical plane where the supporting column is located.
The motor replacement mechanism can conveniently replace a standby motor, and avoids complex processes such as disassembly and assembly of the common technology, so that molten salt cleaning is not required to be carried out every time the motor is replaced.
A spring top and bottom link to each other with slide bottom, vertical traveller bottom respectively, and under the normal condition, a spring pulls the slide and holds, prevents that it from rocking from top to bottom, influences driving motor work. When the spring needs to be replaced, the push-pull plate is pushed towards the direction of the sliding plate, the sliding plate moves upwards along the vertical sliding column under the action of the wedge-shaped surface, at the moment, the length of the stretched length of the first spring is long, and meanwhile, the second spring is also in a stretched state; the slide upward movement drives the support column upward movement, and then jacks up the conversion board, so that the rotating shaft of the driving motor is separated from the second transmission shaft, then the conversion board is manually rotated to rotate around the top end of the support column, the standby motor is replaced, then the push-pull board is pulled out to reset, the slide drives the support column to descend, the standby motor is sleeved with the second transmission shaft, and the two motors are quickly replaced. When the sliding plate works normally, the second spring is always in a stretching state, so that the push-pull plate is prevented from being automatically inserted into the lower part of the sliding plate to jack the sliding plate.
Furthermore, a positioning supporting block is fixed at the top end of the frame body, notches are formed in two sides of the positioning supporting block, the supporting column penetrates through the positioning supporting block, a trapezoidal plate is arranged on the supporting column, and the trapezoidal plate is matched with the notches.
The horizontal swing of location supporting shoe when preventing support column rebound on the one hand rocks, plays the guide effect, and on the other hand through the trapezoidal plate cooperation on breach and the support column, when normal operation, keeps the change-over panel firm, and then prevents that the motor during operation from rocking.
The invention has the beneficial effects that: (1) According to the invention, the plurality of booster pipes are arranged, so that the pumping capacity is greatly improved, and the multi-stage booster impeller can improve the pumping pressure; (2) The sealed bearing is arranged to completely separate the molten salt to be pumped from the engine oil, so that the molten salt is prevented from being polluted when the engine oil is added or parts above an engine oil tank are replaced; (3) By arranging three layers of gears, the rotating speed of the motor can be reduced to the greatest extent, and the requirement of a long shaft on low rotating speed is met; set up the motor and change the mechanism, can conveniently change stand-by motor, avoid complicated processes such as ordinary technique dismantlement, installation, therefore, all carry out the fused salt clearance when not needing to change the motor at every turn, improved efficiency, reduced work load.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a schematic structural view of the upper chamber without a heat dissipation protective shell;
FIG. 5 is an overall exploded schematic view of the present invention;
FIG. 6 is an enlarged view of the transmission of FIG. 5;
FIG. 7 is a schematic view of the upper structure of the upper chamber;
FIG. 8 is an enlarged view of the motor exchange mechanism of FIG. 7;
FIG. 9 is an exploded view of the motor exchange mechanism;
in the figure, 1, a bottom cavity, 101, a material suction port, 2, a pressurizing and discharging section, 201, a pressurizing pipe, 202, a pressurizing impeller, 203, a long shaft, 204, a first transmission shaft, 205, a supporting and protecting shell, 206, a stirring rod, 3, an upper cavity, 301, a discharge port, 4, an oil tank, 401, an oil cover, 5, a transmission mechanism, 501, a first supporting frame, 502, a second supporting frame, 503, a second transmission shaft, 504, a first intermediate gear, 505, a third transmission shaft, 506, an outer upper gear, 507, an outer intermediate gear, 508, an outer lower gear, 509, a fourth transmission shaft, 510, a second intermediate gear, 511, a third intermediate gear, 6, a driving motor, 7, a sealing bearing, 8, a heat dissipation protective shell, 9, a motor replacing mechanism, 901, a frame, a conversion plate, a vertical sliding column, 903, a first spring, 904, a sliding plate, 905, a support column, 906, a conversion plate, a side plate, 907, a lateral sliding column, 909, a second spring, 910, a push-pull plate, 911 and positioning.
Detailed Description
As shown in fig. 1 to 9, a vertical high-temperature long-axis molten salt pump comprises a bottom cavity 1 with a material suction port 101, a pressurizing and discharging section 2 is hermetically connected to the bottom cavity 1, the top of the pressurizing and discharging section 2 is hermetically connected to an upper cavity 3 with a material discharge port 301, and an engine oil tank 4, a transmission mechanism 5 and a driving motor 6 are sequentially arranged above the upper cavity 3; the supercharging discharging section 2 comprises a plurality of supercharging pipes 201 with strip-shaped grooves at two ends, and the strip-shaped grooves at two ends of the supercharging pipes 201 are respectively embedded in the bottom cavity 1 and the upper cavity 3 in a sealing manner; a long shaft 203 with a multistage supercharging impeller 202 is arranged in the supercharging pipe 201, a first transmission shaft 204 is fixed at the top end of the long shaft 203, the first transmission shaft 204 penetrates through the engine oil tank 4 to be connected with a transmission mechanism 5, and the transmission mechanism 5 is connected with a driving motor 6; a plurality of oil covers 401 are provided on the side wall of the oil tank 4.
According to the invention, the pumping quantity is greatly increased by arranging the plurality of booster pipes 201, and the pumping pressure can be increased by the multi-stage booster impeller 202.
A sealing bearing 7 is arranged at the joint of the first transmission shaft 204 and the long shaft 203. The sealed bearing 7 completely separates the molten salt to be pumped from the engine oil, and prevents molten salt contamination when the engine oil is added or parts above the engine oil tank 4 are replaced.
The number of the pressure increasing pipes 201 is 3.
A supporting and protecting shell 205 is arranged outside the pressure increasing pipe 201, and the lower end and the upper end of the supporting and protecting shell 205 are fixedly connected with the bottom cavity 1 and the upper cavity 3 respectively.
A stirring rod 206 is fixed on the first transmission shaft 204. The stir bar 206 agitates the oil to prevent settling and agglomeration into clumps.
The transmission mechanism 5 comprises a first support frame 501 and a second support frame 502 which are fixed on the top of the oil tank 4, a second transmission shaft 503 is rotatably arranged in the first support frame 501, a first intermediate gear 504 is fixed on the second transmission shaft 503, a third transmission shaft 505 is rotatably arranged on the second support frame 502, an outer upper gear 506 and an outer intermediate gear 507 are fixed on the third transmission shaft 505, an outer lower gear 508 is fixed on the top of the first transmission shaft 204, a fourth transmission shaft 509 is rotatably arranged on the top of the oil tank 4, and a second intermediate gear 510 and a third intermediate gear 511 are fixed on the fourth transmission shaft 509; the first intermediate gear 504 is meshed with the outer upper gear 506, the second intermediate gear 510 is meshed with the outer intermediate gear 507, and the third intermediate gear 511 is meshed with the outer lower gear 508; the rotating shaft of the driving motor 6 is sleeved with the second transmission shaft 503 through a spline.
By arranging three layers of gears, the rotating speed of the motor can be reduced to the greatest extent, and the requirement of low rotating speed of the long shaft 203 is met.
A heat dissipation protective shell 8 is arranged on the outer side of the transmission mechanism 5, a motor replacement mechanism 9 is fixed on the heat dissipation protective shell 8, the motor replacement mechanism 9 comprises a frame body 901 fixed on the heat dissipation protective shell 8, two vertical sliding columns 902 are arranged in the frame body 901, a first spring 903 and a sliding plate 904 are sleeved on the vertical sliding columns 902, a supporting column 905 is fixed on the sliding plate 904, the supporting column 905 upwards penetrates through the frame body 901, and a conversion plate 906 is rotatably arranged at the top of the supporting column 905; a side plate 907 is fixed on the frame 901, two transverse sliding columns 908 are fixed on the side plate 907, a second spring 909 is sleeved on each transverse sliding column 908, a push-pull plate 910 is arranged on the side plate 907 in a sliding mode, the push-pull plate 910 is connected with the transverse sliding columns 908 in a sliding mode, and a wedge-shaped surface is arranged at the end portion of the push-pull plate 910; two driving motors 6 with the same performance are fixed on the conversion plate 906, and the two driving motors 6 are symmetrical with respect to the vertical plane of the supporting column 905.
The motor replacement mechanism 9 can conveniently replace a standby motor, and avoids complex processes such as disassembly and assembly of the common technology, so that molten salt cleaning is not required to be carried out every time the motor is replaced.
No. one spring 903 top and bottom link to each other with slide 904 bottom, vertical traveller 902 bottom respectively, and under the normal condition, no. one spring 903 pulls slide 904 and holds, prevents that it from rocking from top to bottom, influences driving motor 6 work. When the replacement is needed, the push-pull plate 910 is pushed towards the sliding plate 904, the sliding plate 904 moves upwards along the vertical sliding column 902 under the action of the wedge-shaped surface, at the moment, the length of the stretched length of the first spring 903 is long, and meanwhile, the second spring 909 is also in a stretched state; the sliding plate 904 moves upwards to drive the supporting column 905 to move upwards, and further jacks up the conversion plate 906, so that a rotating shaft of the driving motor 6 is separated from the second transmission shaft 503, then the conversion plate 906 is manually rotated to rotate around the top end of the supporting column 905, the standby motor is replaced, then the push-pull plate 910 is pulled out to reset, the sliding plate 904 drives the supporting column 905 to descend, and the standby motor is sleeved with the second transmission shaft 503, so that the two motors can be quickly exchanged. In normal operation, the second spring 909 is always under tension, thereby preventing the push-pull plate 910 from automatically inserting under the sliding plate 904 and lifting it.
A positioning support block 911 is fixed at the top end of the frame 901, notches are formed in two sides of the positioning support block 911, the support column 905 penetrates through the positioning support block 911, and a trapezoidal plate is arranged on the support column 905 and matched with the notches.
Claims (7)
1. A vertical high-temperature long-axis molten salt pump is characterized by comprising a bottom cavity (1) with a material suction port (101), wherein the bottom cavity (1) is hermetically connected with a pressurizing and discharging section (2), the top of the pressurizing and discharging section (2) is hermetically connected with an upper cavity (3) with a material discharge port (301), and an engine oil tank (4), a transmission mechanism (5) and a driving motor (6) are sequentially arranged above the upper cavity (3);
the supercharging discharging section (2) comprises a plurality of supercharging pipes (201) with strip-shaped grooves at two ends, and the strip-shaped grooves at the two ends of the supercharging pipes (201) are respectively embedded in the bottom cavity (1) and the upper cavity (3) in a sealing manner;
a long shaft (203) with a multi-stage supercharging impeller (202) is arranged in the supercharging pipe (201), a first transmission shaft (204) is fixed at the top end of the long shaft (203), the first transmission shaft (204) penetrates through the engine oil tank (4) to be connected with a transmission mechanism (5), and the transmission mechanism (5) is connected with a driving motor (6); a plurality of engine oil covers (401) are arranged on the side wall of the engine oil tank (4);
a heat dissipation protective shell (8) is arranged on the outer side of the transmission mechanism (5), a motor replacing mechanism (9) is fixed on the heat dissipation protective shell (8), the motor replacing mechanism (9) comprises a frame body (901) fixed on the heat dissipation protective shell (8), two vertical sliding columns (902) are arranged in the frame body (901), a first spring (903) and a sliding plate (904) are sleeved on the vertical sliding columns (902), a supporting column (905) is fixed on the sliding plate (904), the supporting column (905) upwards penetrates through the frame body (901), and a conversion plate (906) is rotatably arranged at the top of the supporting column (905); a side plate (907) is further fixed on the frame body (901), two transverse sliding columns (908) are fixed on the side plate (907), a second spring (909) is sleeved on each transverse sliding column (908), a push-pull plate (910) is arranged on the side plate (907) in a sliding mode, the push-pull plate (910) is connected with the transverse sliding columns (908) in a sliding mode, and a wedge-shaped surface is arranged at the end portion of the push-pull plate (910);
two driving motors (6) with the same performance are fixed on the conversion plate (906), and the two driving motors (6) are symmetrical with the vertical plane where the supporting column (905) is located.
2. The vertical high-temperature long-shaft molten salt pump as claimed in claim 1, wherein a sealed bearing (7) is provided at the joint of the first drive shaft (204) and the long shaft (203).
3. A vertical high temperature long axis molten salt pump according to claim 1 wherein there are 3 said booster pipes (201).
4. The vertical high-temperature long-axis molten salt pump as claimed in claim 1, wherein a support protection housing (205) is provided outside the booster pipe (201), and the lower end and the upper end of the support protection housing (205) are fixedly connected with the bottom chamber (1) and the upper chamber (3), respectively.
5. The vertical high temperature long axis molten salt pump according to claim 1, wherein a stirring rod (206) is fixed to the first drive shaft (204).
6. The vertical high-temperature long-shaft molten salt pump as claimed in claim 1, wherein the transmission mechanism (5) comprises a first support frame (501) and a second support frame (502) fixed to the top of the oil tank (4), a second transmission shaft (503) is rotatably arranged in the first support frame (501), a first intermediate gear (504) is fixed to the second transmission shaft (503), a third transmission shaft (505) is rotatably arranged on the second support frame (502), an outer upper gear (506) and an outer intermediate gear (507) are fixed to the third transmission shaft (505), an outer lower gear (508) is fixed to the top of the first transmission shaft (204), a fourth transmission shaft (509) is rotatably arranged on the top of the oil tank (4), and a second intermediate gear (510) and a third intermediate gear (511) are fixed to the fourth transmission shaft (509);
the first intermediate gear (504) is meshed with the outer upper gear (506), the second intermediate gear (510) is meshed with the outer intermediate gear (507), and the third intermediate gear (511) is meshed with the outer lower gear (508); and a rotating shaft of the driving motor (6) is sleeved with the second transmission shaft (503) through a spline.
7. The vertical high-temperature long-shaft molten salt pump as claimed in claim 1, wherein a positioning support block (911) is fixed at the top end of the frame body (901), notches are formed in two sides of the positioning support block (911), the support column (905) penetrates through the positioning support block (911), and a trapezoidal plate is arranged on the support column (905) and matched with the notches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211638047.1A CN115614285B (en) | 2022-12-20 | 2022-12-20 | Vertical high-temperature long-shaft molten salt pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211638047.1A CN115614285B (en) | 2022-12-20 | 2022-12-20 | Vertical high-temperature long-shaft molten salt pump |
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| CN115614285A CN115614285A (en) | 2023-01-17 |
| CN115614285B true CN115614285B (en) | 2023-03-17 |
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| CN116557333B (en) * | 2023-07-12 | 2023-09-19 | 江苏江进泵业有限公司 | Torque transmission mechanism for submersible pump |
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| CN204392066U (en) * | 2015-02-06 | 2015-06-10 | 磁谷科技（集团）有限公司 | Based on the standby usage motor automatic moving type switching device shifter of permanent magnet transmission technology |
| CN109737070B (en) * | 2019-02-21 | 2021-02-19 | 安徽佳先功能助剂股份有限公司 | Multi-cavity delivery pump of stearoylbenzoylmethane production usefulness |
| CN210735359U (en) * | 2019-10-08 | 2020-06-12 | 河北渤海煤焦化有限公司 | Belt conveyor |
| CN110939581A (en) * | 2019-12-21 | 2020-03-31 | 郭伟聪 | Double-wheel type middle section energy storage device for liquid conveying |
| CN213954312U (en) * | 2020-10-14 | 2021-08-13 | 杭州更荣机械有限公司 | High-efficient heat dissipation type marine gear box |
| CN112112811A (en) * | 2020-10-21 | 2020-12-22 | 盐城市海河泵业有限公司 | Axial flow pump |
| CN217292557U (en) * | 2021-12-20 | 2022-08-26 | 无锡前行机械科技有限公司 | Double-drive transmission mechanism of full-automatic cutting machine |
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