CN114776600A - Magnetic pump - Google Patents
Magnetic pump Download PDFInfo
- Publication number
- CN114776600A CN114776600A CN202210544874.8A CN202210544874A CN114776600A CN 114776600 A CN114776600 A CN 114776600A CN 202210544874 A CN202210544874 A CN 202210544874A CN 114776600 A CN114776600 A CN 114776600A
- Authority
- CN
- China
- Prior art keywords
- shaft
- pump
- main shaft
- magnetic
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 239000000110 cooling liquid Substances 0.000 claims abstract description 13
- 238000002955 isolation Methods 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 25
- 238000007906 compression Methods 0.000 claims description 25
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 210000003781 tooth socket Anatomy 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Images
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
- 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
- F04D13/0606—Canned motor 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
- 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
- F04D13/0606—Canned motor pumps
- F04D13/064—Details of the magnetic circuit
-
- 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
- F04D29/043—Shafts
-
- 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
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
-
- 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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings 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
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5846—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling by injection
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 magnetic pump, which belongs to the technical field of pump valves and comprises a motor, a pump body, a pump cover, an impeller, an outer magnet, an inner magnet and a shaft, wherein the pump cover is connected with the pump body in a sealing manner, the outer magnet is connected with the shaft end of the motor, an isolation sleeve is fixed on the pump body and is arranged between the inner magnet and the outer magnet, the shaft comprises a main shaft and an auxiliary shaft which are clamped with each other, blind holes are formed in one ends of the main shaft and the auxiliary shaft, a sealed cavity is formed by the blind holes after the main shaft and the auxiliary shaft are connected in a sealing manner, and cooling liquid is filled in the sealed cavity.
Description
Technical Field
The invention belongs to the technical field of pump valves, and particularly relates to a magnetic pump.
Background
In the structure of the magnetic pump, a transmission shaft of the motor does not need to penetrate into a pump shell, but the magnetic field penetrates through the magnetic field and the thin-wall of the isolation sleeve to drive the torque to drive the inner magnetic rotor, so that a leakage channel of the shaft seal is fundamentally eliminated, and the pumped liquid and the motor are completely sealed.
The magnetic pump generally adopts a sliding bearing, the sliding bearing can generate heat in the operation process, and the heat can be only taken away by a medium which is recycled in the magnetic pump. Thus, once the medium contains particles, the particles that flow to the location of the plain bearing can clog the circulation flow path in the plain bearing.
In addition, the magnetic pump can also cause dry grinding of the sliding bearing when idling, the temperature of the sliding bearing is rapidly increased in a short time, and if the main material of the sliding bearing is engineering plastics, the sliding bearing can expand to seize the shaft, so that the magnetic pump is damaged. If the sliding bearing is made of ceramic material, the sliding bearing will burst after a sharp temperature rise, which also results in damage to the magnetic pump.
Therefore, in order to solve the problem of abrasion of the transmission components during high-temperature operation of the magnetic pump, it is necessary to provide a magnetic pump capable of self-regulating rotation under high-temperature conditions.
Disclosure of Invention
The invention aims to provide a magnetic pump, and aims to solve the problem that in the prior art, a rotating part of a pump body is easily abraded in a high-temperature or idle state of the magnetic pump.
In order to achieve the purpose, the invention provides the following technical scheme:
a magnetic pump comprises a motor, a pump body, a pump cover, an impeller, an outer magnet, an inner magnet and a shaft, wherein the pump cover is connected with the pump body in a sealing manner, the outer magnet is connected with the shaft end of the motor, an isolation sleeve is fixed on the pump body and is arranged between the inner magnet and the outer magnet, the shaft comprises a main shaft and an auxiliary shaft which are clamped with each other, blind holes are formed in one ends of the main shaft and the auxiliary shaft, a sealing cavity is formed by the blind holes after the main shaft and the auxiliary shaft are connected in a sealing manner, cooling liquid is filled in the sealing cavity, an outer latch and a sealing groove are formed in one end of the main shaft, an annular groove is formed in the periphery of the main shaft close to the outer latch, a connecting ring is arranged at one end of the auxiliary shaft, an inner latch is arranged in the connecting ring, a clamping ring is limited on the annular groove of the main shaft and is rotatably connected with the main shaft, the connecting ring is connected with the clamping ring through a pin shaft, a compression spring is sleeved on the pin, the pin shaft cap is fixed at each of the two ends of the pin shaft, the compression spring is limited between the pin shaft cap at one end of the pin shaft and the connecting ring, and the elastic sealing ring is arranged between the clamping ring and the connecting ring.
As a further scheme of the invention: one end of the main shaft is fixedly connected with the inner magnet, the auxiliary shaft penetrates through the pump cover and is fixedly connected with the impeller through the impeller nut, the auxiliary shaft is sleeved with a shaft sleeve, the shaft sleeve is in running fit with the pump cover, and a thrust plate is arranged between the shaft sleeve and the impeller.
As a further scheme of the invention: the length of the pin shaft is set to enable the compression spring and the elastic sealing ring to be in a compression state, and meanwhile the main shaft and the auxiliary shaft are tightly clamped.
As a further scheme of the invention: the tooth height of outer latch is the same with interior latch, just the decrement of elasticity sealing washer is greater than the tooth height of outer latch.
As a further scheme of the invention: when the compression spring reaches the limit compression state, the elastic sealing ring is still in the compression state.
As a further scheme of the invention: and a sealing gasket is arranged in the sealing groove.
As a further scheme of the invention: the tooth socket between the inner clamping teeth is matched with the outer clamping teeth, and the tooth socket between the outer clamping teeth is matched with the inner clamping teeth.
As a further scheme of the invention: the inner diameter of the connecting ring is the same as the outer diameter of the main shaft.
As a further scheme of the invention: the cooling liquid is any one of gasoline, alcohol and ether.
Compared with the prior art, the invention has the beneficial effects that:
1. the shaft of the invention is divided into a main shaft connected with the inner magnet and an auxiliary shaft connected with other rotating parts in the pump body, when the high-temperature operation is carried out, the separation of the main shaft and the auxiliary shaft is effectively realized, when the main shaft and the auxiliary shaft are completely separated, the outer latch and the inner latch are completely separated, only the main shaft rotates along with the inner magnet at the moment, and the auxiliary shaft stops rotating.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic overall sectional view of a magnetic pump according to the present invention;
FIG. 2 is an exploded view of the shaft of the magnetic pump of the present invention;
FIG. 3 is a front view of the shaft of the magnetic pump of the present invention;
FIG. 4 is a schematic view of FIG. 3 taken along line B;
FIG. 5 is a schematic structural view of a spindle of the magnetic pump of the present invention;
fig. 6 is a schematic structural view of a countershaft of the magnetic pump of the present invention.
In the figure: 1. a motor; 2. a pump body; 3. a pump cover; 4. an impeller; 5. an outer magnet; 6. an inner magnet; 7. a shaft; 71. a main shaft; 711. an outer latch; 712. a sealing groove; 713. an annular groove; 72. a counter shaft; 721. a connecting ring; 722. an inner latch; 8. an isolation sleeve; 9. an impeller nut; 10. a shaft sleeve; 11. a thrust plate; 12. and (4) blind holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides the following technical solutions: the utility model provides a magnetic drive pump, including motor 1, the pump body 2, the pump cover 3, impeller 4, outer magnet 5, interior magnet 6, axle 7, pump cover 3 and pump body 2 sealing connection, base 13 is all installed to motor 1 and pump body 2 bottom, outer magnet 5 is connected with the axle head of motor 1, be fixed with separation sleeve 8 on the pump body 2, separation sleeve 8 sets up between interior magnet 6 and outer magnet 5, the theory of operation of outer magnet 5 and interior magnet 6 belongs to the common general knowledge of magnetic drive pump, no longer describe here.
The shaft 7 of the embodiment includes a main shaft 71 and an auxiliary shaft 72 which are clamped with each other, one end of the main shaft 71 is fixedly connected with the inner magnet 6, the auxiliary shaft 72 penetrates through the pump cover 3 and is fixedly connected with the impeller 4 through an impeller nut 9, the auxiliary shaft 72 is sleeved with a shaft sleeve 10, the shaft sleeve 10 is in running fit with the pump cover 3, and a thrust plate 11 is arranged between the shaft sleeve 10 and the impeller 4.
The blind holes 12 are formed in one ends of the main shaft 71 and the auxiliary shaft 72, the blind holes 12 formed after the main shaft 71 and the auxiliary shaft 72 are connected in a sealing mode form a sealing cavity 73, cooling liquid is filled in the sealing cavity 73, the outer clamping teeth 711 and the sealing groove 712 are formed in one end of the main shaft 71, a sealing ring is installed in the sealing groove 712, and internal sealing after the main shaft 71 and the auxiliary shaft 72 are connected in a clamping mode is achieved.
An annular groove 713 is formed in the outer peripheral side, close to the outer latch 711, of the main shaft 71, a connecting ring 721 is arranged at one end of the auxiliary shaft 72, the inner diameter of the connecting ring 721 is the same as the outer diameter of the main shaft 71, inner latches 722 are arranged in the connecting ring 721, tooth grooves between the inner latches 722 are matched with the outer latch 711, and tooth grooves between the outer latches 711 are matched with the inner latches 722.
The upper limit of the annular groove 713 of the main shaft 71 is provided with a clamping ring 74, the clamping ring 74 is rotatably connected with the main shaft 71, the connecting ring 721 is connected with the clamping ring 74 through a pin shaft 75, the pin shaft 75 is sleeved with a compression spring 76, pin shaft caps are fixed at two ends of the pin shaft 75, the compression spring 76 is limited between the pin shaft cap at one end of the pin shaft and the connecting ring 721, an elastic sealing ring 77 is arranged between the clamping ring 74 and the connecting ring 721, and the elastic sealing ring 77 is a silica gel or rubber sealing ring with the thickness of 20mm-30mm and has high toughness.
The length of the pin shaft 75 is set to enable the compression spring 76 and the elastic sealing ring 77 to be in a compression state, meanwhile, the main shaft 71 and the auxiliary shaft 72 are tightly clamped, and pin shaft caps are welded at two ends of the pin shaft after the pin shaft 75 is installed, so that the shaft 7 is prevented from falling off in the high-speed operation process.
The tooth height of the outer latch 711 is the same as that of the inner latch 722, the compression amount of the elastic sealing ring 77 is larger than that of the outer latch 711, and when the compression spring reaches the limit compression state, the elastic sealing ring 77 is still in the compression state, so that the high sealing performance of the elastic sealing ring 77 can be guaranteed after the outer latch 711 is separated from the inner latch 722.
The cooling liquid is any one of gasoline, alcohol and ether, the proper cooling liquid is selected according to the maximum rotating speed of the magnetic pump, the cooling liquid with a higher boiling point is selected under the condition of a large maximum rotating speed, and the cooling liquid with a lower boiling point is selected under the condition of a small maximum rotating speed.
When the shaft of the magnetic pump rotates, the cooling liquid achieves a cooling effect on the shaft and a component rotating synchronously with the shaft, when the shaft works for a long time, the temperature of the shaft gradually rises, at the moment, the cooling liquid in the sealing cavity 73 begins to evaporate and expand, and then the main shaft 71 and the auxiliary shaft 72 are pushed to separate, so that the pin shaft 75 moves towards the direction of the clamping ring 74, the compression spring 76 further compresses, the elastic sealing ring 77 begins to reduce the compression amount, the inner diameter of the elastic sealing ring 77 is larger than that of the main shaft 71, and after the compression amount of the elastic sealing ring 77 is reduced, the rotation friction between the main shaft 71 and the elastic sealing ring 77 is reduced or even disappears.
When the main shaft 71 and the auxiliary shaft 72 are completely separated, the outer latch 711 and the inner latch 722 are completely separated, only the main shaft 71 rotates along with the inner magnet 6, the auxiliary shaft 72 stops rotating, and the auxiliary shaft 72 is mainly connected with the rotating part of the pump body, so that the loss of the rotating part in the pump body during high-temperature operation is avoided. Particularly, when the impeller and the pump cover are not in contact with liquid in an idling state of the pump, the rotating speed is high, the temperature is not reduced, the temperature rises rapidly, the idling damage of the pump body is easily caused, and the main shaft 71 and the auxiliary shaft 72 are separated, so that the idling loss of the pump body is completely avoided.
Compared with the traditional pump body 2, the invention divides the shaft 7 into the main shaft 71 connected with the inner magnet and the auxiliary shaft 72 connected with other rotating parts in the pump body 2, effectively realizes the separation of the main shaft 71 and the auxiliary shaft 72 during high-temperature operation, avoids the loss of the rotating part of the pump body 2 and the shaft 7 during high-temperature operation, has long service life, is convenient for manual maintenance, can be suitable for various use scenes according to the selection of cooling liquid in the sealed cavity 73, and has wide application.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A magnetic drive pump, characterized by: comprises a motor, a pump body, a pump cover, an impeller, an outer magnet, an inner magnet and a shaft;
the pump cover is connected with the pump body in a sealing manner, the outer magnet is connected with the shaft end of the motor, and an isolation sleeve is fixed on the pump body and arranged between the inner magnet and the outer magnet;
the shaft comprises a main shaft and an auxiliary shaft which are clamped with each other, blind holes are formed in one ends of the main shaft and the auxiliary shaft, a sealing cavity is formed by the blind holes after the main shaft and the auxiliary shaft are connected in a sealing mode, cooling liquid is filled in the sealing cavity, an outer latch and a sealing groove are formed in one end of the main shaft, an annular groove is formed in the periphery side, close to the outer latch (711), of the main shaft, a connecting ring is arranged at one end of the auxiliary shaft, and an inner latch is arranged in the connecting ring;
the improved spindle is characterized in that a clamping ring is limited on the annular groove of the spindle and is rotatably connected with the spindle, the connecting ring is connected with the clamping ring through a pin shaft, a compression spring is sleeved on the pin shaft, pin shaft caps are fixed at two ends of the pin shaft, the compression spring is limited between the pin shaft cap at one end of the pin shaft and the connecting ring, and an elastic sealing ring is arranged between the clamping ring and the connecting ring.
2. The magnetic pump of claim 1, wherein: one end of the main shaft is fixedly connected with the inner magnet, the auxiliary shaft penetrates through the pump cover and is fixedly connected with the impeller through the impeller nut, the auxiliary shaft is sleeved with a shaft sleeve, the shaft sleeve is in running fit with the pump cover, and a thrust plate is arranged between the shaft sleeve and the impeller.
3. The magnetic pump of claim 1, wherein: the length of the pin shaft is set to enable the compression spring and the elastic sealing ring to be in a compression state, and meanwhile the main shaft and the auxiliary shaft are tightly clamped.
4. The magnetic drive pump of claim 3, wherein: the tooth height of outer latch is the same with the tooth height of interior latch, just the deflection of elasticity sealing washer is greater than the tooth height of outer latch.
5. The magnetic drive pump of claim 4, wherein: when the compression spring reaches the limit compression state, the elastic sealing ring is still in the compression state.
6. The magnetic pump of claim 1, wherein: and a sealing gasket is arranged in the sealing groove.
7. The magnetic pump of claim 1, wherein: the tooth socket between the inner clamping teeth is matched with the outer clamping teeth, and the tooth socket between the outer clamping teeth is matched with the inner clamping teeth.
8. The magnetic pump of claim 1, wherein: the inner diameter of the connecting ring is the same as the outer diameter of the main shaft.
9. The magnetic pump of claim 1, wherein: the cooling liquid is any one of gasoline, alcohol and ether.
10. The magnetic pump of claim 1, wherein: the motor and the bottom of the pump body are both provided with a base.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210544874.8A CN114776600B (en) | 2022-05-19 | 2022-05-19 | Magnetic pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210544874.8A CN114776600B (en) | 2022-05-19 | 2022-05-19 | Magnetic pump |
Publications (2)
Publication Number | Publication Date |
---|---|
CN114776600A true CN114776600A (en) | 2022-07-22 |
CN114776600B CN114776600B (en) | 2024-02-09 |
Family
ID=82408152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210544874.8A Active CN114776600B (en) | 2022-05-19 | 2022-05-19 | Magnetic pump |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114776600B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116877445A (en) * | 2023-05-25 | 2023-10-13 | 江苏旺源泵阀制造有限公司 | Magnetic pump with overheat protection system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2174623A5 (en) * | 1972-03-01 | 1973-10-12 | Dow Chemical Co | |
CN200982322Y (en) * | 2006-12-18 | 2007-11-28 | 上海凯士比泵有限公司 | Heat medium pump |
CA2712882A1 (en) * | 2009-08-20 | 2011-02-20 | Baker Hughes Incorporated | Latching mechanism for changing pump size |
CN207920869U (en) * | 2018-02-02 | 2018-09-28 | 广东美芝制冷设备有限公司 | Compressor and air conditioner |
CN112032095A (en) * | 2020-08-25 | 2020-12-04 | 瑞卡斯(南京)精密机械有限公司 | Combined type circulating water pump transmission shaft and water pump circulating method |
-
2022
- 2022-05-19 CN CN202210544874.8A patent/CN114776600B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2174623A5 (en) * | 1972-03-01 | 1973-10-12 | Dow Chemical Co | |
CN200982322Y (en) * | 2006-12-18 | 2007-11-28 | 上海凯士比泵有限公司 | Heat medium pump |
CA2712882A1 (en) * | 2009-08-20 | 2011-02-20 | Baker Hughes Incorporated | Latching mechanism for changing pump size |
CN207920869U (en) * | 2018-02-02 | 2018-09-28 | 广东美芝制冷设备有限公司 | Compressor and air conditioner |
CN112032095A (en) * | 2020-08-25 | 2020-12-04 | 瑞卡斯(南京)精密机械有限公司 | Combined type circulating water pump transmission shaft and water pump circulating method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116877445A (en) * | 2023-05-25 | 2023-10-13 | 江苏旺源泵阀制造有限公司 | Magnetic pump with overheat protection system |
CN116877445B (en) * | 2023-05-25 | 2024-09-13 | 江苏旺源泵阀制造有限公司 | Magnetic pump with overheat protection system |
Also Published As
Publication number | Publication date |
---|---|
CN114776600B (en) | 2024-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN114776600A (en) | Magnetic pump | |
CN110725802A (en) | Integrated magnetic pump in impeller | |
CN218325439U (en) | Chemical process pump with novel mechanical sealing structure | |
CN208364373U (en) | High pressure servo vane pump | |
CN211779062U (en) | Totally-enclosed gate valve | |
CN201196263Y (en) | Mechanical sealing device | |
CN211116659U (en) | Impeller inner magnetic integrated magnetic pump | |
CN202285356U (en) | Motor for dry vacuum pump | |
CN221628468U (en) | High-tightness shaft for centrifugal pump | |
CN215719762U (en) | Mechanical sealing device of condensate pump | |
CN201772068U (en) | Sealing structure for pressure fluids of pump or fan rotating shaft | |
WO2020037643A1 (en) | Novel impeller centrifugal water pump | |
CN212480149U (en) | High-pole stop valve for farmland pipeline | |
CN221170429U (en) | Integrated combined bearing of high-speed dust collector | |
CN220576340U (en) | Polytetrafluoroethylene-based low-leakage combined filler production equipment | |
CN205823639U (en) | Vacuum machine sealing mechanism | |
CN219795580U (en) | Non-shaft transmission magnetic pump | |
CN216111322U (en) | Mechanical seal structure for desulfurization slurry pump | |
CN108591475A (en) | A kind of heat safe mechanical seal | |
CN216044484U (en) | Magnetic drive pump with self-cleaning mechanism | |
CN220396465U (en) | Spring type mechanical sealing structure | |
CN201129537Y (en) | Ball valve sealing device | |
CN211852801U (en) | Mechanical sealing device for gypsum grinding machine | |
CN215806301U (en) | Double-end-face push type sealing device | |
CN217002298U (en) | High-temperature pump with split type cooling function |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20240328 Address after: No. 303, Qianzhuang District 5, Nanxiaowang Township, Boye County, Baoding City, Hebei Province, 071000 Patentee after: Lin Pengxi Country or region after: China Address before: 756000 G309 (Industrial Park), Yuanzhou District, Guyuan City, Ningxia Hui Autonomous Region Patentee before: Cao Xiang Country or region before: China |
|
TR01 | Transfer of patent right |