CN110486282A - A kind of heat dissipation damping centrifugal pump - Google Patents
A kind of heat dissipation damping centrifugal pump Download PDFInfo
- Publication number
- CN110486282A CN110486282A CN201910730505.6A CN201910730505A CN110486282A CN 110486282 A CN110486282 A CN 110486282A CN 201910730505 A CN201910730505 A CN 201910730505A CN 110486282 A CN110486282 A CN 110486282A
- Authority
- CN
- China
- Prior art keywords
- centrifugal pump
- water
- pipe
- water inlet
- outlet
- 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.)
- Withdrawn
Links
- 238000013016 damping Methods 0.000 title claims abstract description 43
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 121
- 239000000498 cooling water Substances 0.000 claims abstract description 19
- 238000004804 winding Methods 0.000 claims abstract description 3
- 239000000945 filler Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007787 solid Substances 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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal 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
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials 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
- F04D29/5806—Cooling the drive system
-
- 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
- F04D29/5886—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling by injection
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted 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 discloses a kind of heat dissipation damping centrifugal pumps, including centrifugal pump and centrifugal pump motor, centrifugal pump side is provided with centrifugal pump motor, centrifugal pump and centrifugal pump motor bottom are provided with mounting seat, the water inlet of centrifugal pump side is connected with the first water inlet pipe, water outlet at the top of centrifugal pump is connected with the first outlet pipe, the first valve is provided on first water inlet pipe and the first outlet pipe, centrifugal pump motor includes motor inner casing, winding is provided with circulating cooling water pipe on the outside of motor inner casing, the connection of the water outlet of the water inlet end of circulating cooling water pipe and the second outlet pipe, the second valve is provided on second outlet pipe, the water inlet end of second outlet pipe is connected to the water outlet of micro pump, the water inlet end of micro pump is connected to by pipeline with the water outlet of tank top, water tank bottom is provided with support frame, pass through the circulating cooling water pipe of setting, in water tank Water entered in circulating cooling water pipe by the second outlet pipe, to centrifugal pump motor carry out water-cooling.
Description
Technical field
The present invention relates to centrifugation pump technical field, specially a kind of heat dissipation damping centrifugal pumps.
Background technique
Centrifugal pump refers to the centrifugal force by generating when impeller rotation to convey the pump of liquid, and water pump is before activation, it is necessary to make
It is full of water in pump case and suction hose, then starts motor, pump shaft impeller and water is made to do high speed rotary motion, water is centrifuged
Movement, is thrown toward impeller outer edge, and the runner through volute pump case flows into the pressure pipe road of water pump.
The heat dissipation of existing centrifugal pump is radiated by the radiator fan of centrifugal pump motor one end, radiating efficiency
It is low, cause the service life of centrifugal pump to reduce, the higher centrifugal pump of heat is made troubles to work, and centrifugal pump requires to pump
Water is added in body, needs staff to be carried out adding water according to the work of centrifugal pump, increases workload.
Summary of the invention
The purpose of the present invention is to provide a kind of heat dissipation damping centrifugal pumps, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme: a kind of heat dissipation damping centrifugal pump, including centrifugal pump and
Centrifugal pump motor, centrifugal pump side are provided with centrifugal pump motor, and centrifugal pump and centrifugal pump motor bottom are provided with mounting seat, from
The water inlet of heart pump side is connected with the first water inlet pipe, and the water outlet at the top of centrifugal pump is connected with the first outlet pipe, the first water inlet
The first valve is provided on pipe and the first outlet pipe, centrifugal pump motor includes motor inner casing, winding setting on the outside of motor inner casing
There is a circulating cooling water pipe, the water outlet connection of the water inlet end of circulating cooling water pipe and the second outlet pipe is arranged on the second outlet pipe
There is the second valve, the water inlet end of the second outlet pipe is connected to the water outlet of micro pump, and the water inlet end of micro pump passes through pipeline
It is connected to the water outlet of tank top, water tank bottom is provided with support frame, and the side of centrifugal pump, water tank bottom is arranged in support frame
The water inlet of the connection of one end of the water outlet in portion and the second water inlet pipe, the other end of the second water inlet pipe and the setting of centrifugal pump side connects
It is logical, third valve is provided on the second water inlet pipe.
Preferably, mounting seat is fixedly connected by fixing bolt with placement plate, and placement plate bottom is evenly distributed with more
First damping spring, the first damping spring bottom are fixedly connected on the bottom of damping base, and the both ends of placement plate are fixedly connected with
Have to be horizontally disposed with and have the second damping spring, the other end of the second damping spring is fixed on the inner sidewall of damping base.
Preferably, motor housing is provided on the outside of circulating cooling water pipe, motor housing bottom is provided with electric machine support, and electricity
Machine support bottom is arranged in mounting seat, and is connected with multi-disc radiating fin on the outside of motor housing.
Preferably, the water inlet of water tank side is connected with filler pipe, and is provided at the top of filler pipe and adds water cover, and Miniature water
The top of water tank is arranged in pump.
Preferably, the top plate that the second water inlet pipe passes through support frame is arranged, and the top of mounting seat is arranged in support frame.
Compared with prior art, the beneficial effects of the present invention are:
1. the water in water tank enters circulating cooling water pipe by the second outlet pipe by the circulating cooling water pipe of setting
It is interior, water-cooling is carried out to centrifugal pump motor, accelerates the heat dissipation effect to centrifugal pump motor, extend its centrifugal pump uses the longevity
Life, and the water in water tank is entered in centrifugal pump by the second water inlet pipe, is offered convenience to the work of centrifugal pump, the centrifugal pump
The flow of the traditional centrifugal pump of flow-rate ratio increases, and substantially increases the application field of the centrifugal pump, and centrifugal pump, motor inner casing and
Motor housing is made of resistant material, improves the corrosion resistance of the centrifugal pump；
2. the centrifugal pump is mounted in the placement plate in damping base, when being centrifuged pump work, the first damping spring and the
Two damping springs carry out damping to the centrifugal pump to work in placement plate, improve the stability of centrifugal pump.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is centrifugal pump motor cross-sectional view of the invention
Fig. 3 is centrifugal pump motor structural schematic diagram of the invention.
In figure: 1, centrifugal pump；2, centrifugal pump motor；3, mounting seat；4, the first water inlet pipe；5, the first outlet pipe；6,
One valve；7, water tank；8, support frame；9, micro pump；10, the second outlet pipe；11, the second valve；12, the second water inlet pipe；13,
Third valve；14, damping base；15, placement plate；16, the first damping spring；17, the second damping spring；18, motor inner casing；
19, circulating cooling water pipe；20, motor housing.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the orientation of the instructions such as term "vertical", "upper", "lower", "horizontal"
Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, it can manage as the case may be
Solve the concrete meaning of above-mentioned term in the present invention.
Please refer to Fig. 1-3, the present invention provides a kind of technical solution: a kind of heat dissipation damping centrifugal pump, including centrifugal pump 1 and from
Heart pump motor 2,1 side of centrifugal pump are provided with centrifugal pump motor 2, and centrifugal pump 1 and 2 bottom of centrifugal pump motor are provided with mounting seat
3, the water inlet of 1 side of centrifugal pump is connected with the first water inlet pipe 4, and the water outlet at 1 top of centrifugal pump is connected with the first outlet pipe 5,
It is provided with the first valve 6 on first water inlet pipe 4 and the first outlet pipe 5, opens the first valve 6 and passes through after centrifugal pump 1 works
First water inlet pipe 4 draws water, and the first outlet pipe 5 is discharged, and centrifugal pump motor 2 includes motor inner casing 18,18 outside of motor inner casing
It winds and is provided with circulating cooling water pipe 19, the water outlet connection of the water inlet end of circulating cooling water pipe 19 and the second outlet pipe 10, the
The second valve 11 is provided on two outlet pipes 10, the water inlet end of the second outlet pipe 10 is connected to the water outlet of micro pump 9, miniature
The water inlet end of water pump 9 is connected to by pipeline with the water outlet at 7 top of water tank, the second valve 11 and micro pump 9 is opened, water tank
Water in 7 is delivered in circulating cooling water pipe 19 by the second outlet pipe 10, plays cooling to the centrifugal pump motor 2 of work
Effect, 7 bottom of water tank are provided with support frame 8, and support frame 8 is arranged in the side of centrifugal pump 1, the water outlet of 7 bottom of water tank and
One end of second water inlet pipe 12 is connected to, and the other end of the second water inlet pipe 12 is connected to the water inlet that 1 side of centrifugal pump is arranged, and second
It is provided with third valve 13 on water inlet pipe 12, opens third valve 13, the water in water tank 7 is conveyed by the second water inlet pipe 12 and is entered
Into centrifugal pump 1.
Mounting seat 3 is fixedly connected by fixing bolt with placement plate 15, and 15 bottom of placement plate is evenly distributed with more the
One damping spring 16,16 bottom of the first damping spring are fixedly connected on the bottom of damping base 14, and the both ends of placement plate 15 are solid
Surely it is connected with to be horizontally disposed with and has the second damping spring 17, the other end of the second damping spring 17 is fixed on the inside of damping base 14
On wall, mounting seat 3 is mounted in placement plate 15, and the first damping spring 16 plays cushioning effect to the bottom of placement plate 15, the
Two damping springs 17 play cushioning effect to the both ends of placement plate 15.
Motor housing 20 is provided on the outside of circulating cooling water pipe 19,20 bottom of motor housing is provided with electric machine support, and electricity
Machine support bottom is arranged in mounting seat 3, and multi-disc radiating fin is connected on the outside of motor housing 20, and motor housing 20 is to following
Ring cooling water pipe 19 plays a protective role.
The water inlet of 7 side of water tank is connected with filler pipe, and is provided at the top of filler pipe and adds water cover, and micro pump 9 is set
It sets at the top of water tank 7, by filler pipe and adds water cover, facilitate and water is added in feed-tank 7, it is convenient to be conveyed to centrifugal pump motor 2
Cold water radiates, and to centrifugal pump 1 plus water, centrifugal pump 1 is facilitated to work.
The top plate that second water inlet pipe 12 passes through support frame 8 is arranged, and support frame 8 is arranged in the top of mounting seat 3, and second
Water inlet pipe 12 passes through support frame 8 and is connected to the water inlet of centrifugal pump 1, to centrifugal pump 1 plus water, centrifugal pump 1 is facilitated to work.
Working principle: in use, centrifugal pump 1 and centrifugal pump motor 2 are mounted in damping base 14, damping base 14 is pacified
In placement plate 15, third valve 13 is opened, the water in water tank 7 is delivered in centrifugal pump 1 by the second water inlet pipe 12, side
Just centrifugal pump 1 works, and water is pumped into from the first water inlet pipe 4, is then discharged from the first outlet pipe 5, opens micro pump 9
Switch extracts the water in water tank 7 out by pipeline, opens the second valve 11, cold water is delivered to circulation by the second outlet pipe 10
In cooling water pipe 19, the centrifugal pump motor 2 for generating heat to work radiates, and the centrifugal pump in work passes through the second damping bullet
Spring 16 and the second damping spring 17 carry out cushioning effect, improve the stability of centrifugal pump bottom.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of heat dissipation damping centrifugal pump, including centrifugal pump (1) and centrifugal pump motor (2), it is characterised in that: centrifugal pump (1) one
Side is provided with centrifugal pump motor (2), and centrifugal pump (1) and centrifugal pump motor (2) bottom are provided with mounting seat (3), centrifugal pump (1)
The water inlet of side is connected with the first water inlet pipe (4), and the water outlet at the top of centrifugal pump (1) is connected with the first outlet pipe (5), and first
It being provided with the first valve (6) on water inlet pipe (4) and the first outlet pipe (5), centrifugal pump motor (2) includes motor inner casing (18),
Winding is provided with circulating cooling water pipe (19) on the outside of motor inner casing (18), the water inlet end of circulating cooling water pipe (19) and the second water outlet
The water outlet connection of (10) is managed, is provided with the second valve (11) on the second outlet pipe (10), the water inlet end of the second outlet pipe (10)
It is connected to the water outlet of micro pump (9), the water inlet end of micro pump (9) is connected by the water outlet at the top of pipeline and water tank (7)
Logical, water tank (7) bottom is provided with support frame (8), and support frame (8) is arranged in the side of centrifugal pump (1), water tank (7) bottom
The connection of one end of water outlet and the second water inlet pipe (12), the other end of the second water inlet pipe (12) and the setting of centrifugal pump (1) side
Water inlet is connected to, and is provided with third valve (13) on the second water inlet pipe (12).
2. a kind of heat dissipation damping centrifugal pump according to claim 1, it is characterised in that: mounting seat (3) passes through fixed spiral shell
Bolt is fixedly connected with placement plate (15), and placement plate (15) bottom is evenly distributed with more first damping springs (16), the first damping
Spring (16) bottom is fixedly connected on the bottom of damping base (14), and the both ends of placement plate (15) are fixedly connected to horizontally disposed
Have the second damping spring (17), the other end of the second damping spring (17) is fixed on the inner sidewall of damping base (14).
3. a kind of heat dissipation damping centrifugal pump according to claim 1, it is characterised in that: set on the outside of circulating cooling water pipe (19)
It is equipped with motor housing (20), motor housing (20) bottom is provided with electric machine support, and electric machine support bottom is arranged in mounting seat
(3) on, and multi-disc radiating fin is connected on the outside of motor housing (20).
4. a kind of heat dissipation damping centrifugal pump according to claim 1, it is characterised in that: the water inlet of water tank (7) side connects
It is connected to filler pipe, and is provided at the top of filler pipe and adds water cover, and micro pump (9) setting is at the top of water tank (7).
5. a kind of heat dissipation damping centrifugal pump according to claim 1, it is characterised in that: the second water inlet pipe (12) passes through support
The top plate of frame (8) is arranged, and support frame (8) setting is at the top of mounting seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910730505.6A CN110486282A (en) | 2019-08-08 | 2019-08-08 | A kind of heat dissipation damping centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910730505.6A CN110486282A (en) | 2019-08-08 | 2019-08-08 | A kind of heat dissipation damping centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110486282A true CN110486282A (en) | 2019-11-22 |
Family
ID=68550185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910730505.6A Withdrawn CN110486282A (en) | 2019-08-08 | 2019-08-08 | A kind of heat dissipation damping centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110486282A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905790A (en) * | 2019-12-13 | 2020-03-24 | 江苏三臺消防科技有限公司 | Novel horizontal pump unit for diesel power well |
| CN110985406A (en) * | 2019-12-19 | 2020-04-10 | 盐城海纳汽车零部件有限公司 | Engine cooling water pump that can finely tune |
| CN111734646A (en) * | 2020-07-06 | 2020-10-02 | 安徽埃斯克制泵有限公司 | Corrosion-resistant centrifugal pump capable of being cooled rapidly |
| CN111917246A (en) * | 2020-08-07 | 2020-11-10 | 韩城盈达气体有限公司 | Novel efficient nitrogen press motor circulative cooling device |
| CN112128117A (en) * | 2020-09-25 | 2020-12-25 | 朱克龙 | Centrifugal pump capable of quickly dissipating heat |
| CN112177984A (en) * | 2020-09-25 | 2021-01-05 | 上海沃克通用设备有限公司 | Noise reduction structure of fan |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201982358U (en) * | 2011-03-11 | 2011-09-21 | 李克宾 | Special chemical centrifugal pump for leak-free pressure filter |
| CN202954982U (en) * | 2012-12-18 | 2013-05-29 | 王雪腾 | Water supply device of centrifugal pump |
| CN203796626U (en) * | 2014-05-08 | 2014-08-27 | 普仑斯(福建)泵业有限公司 | Self-cooling type single-stage single-suction centrifugal pump |
| CN107829951A (en) * | 2017-11-08 | 2018-03-23 | 魏靖靖 | It is a kind of from cooling type centrifugal pump energy-saving electric machine |
| CN207708957U (en) * | 2017-12-15 | 2018-08-10 | 重庆科瑞制药(集团)有限公司 | A kind of desmodium production and processing two-dimensional mixing machine with shock-absorbing function |
-
2019
- 2019-08-08 CN CN201910730505.6A patent/CN110486282A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201982358U (en) * | 2011-03-11 | 2011-09-21 | 李克宾 | Special chemical centrifugal pump for leak-free pressure filter |
| CN202954982U (en) * | 2012-12-18 | 2013-05-29 | 王雪腾 | Water supply device of centrifugal pump |
| CN203796626U (en) * | 2014-05-08 | 2014-08-27 | 普仑斯(福建)泵业有限公司 | Self-cooling type single-stage single-suction centrifugal pump |
| CN107829951A (en) * | 2017-11-08 | 2018-03-23 | 魏靖靖 | It is a kind of from cooling type centrifugal pump energy-saving electric machine |
| CN207708957U (en) * | 2017-12-15 | 2018-08-10 | 重庆科瑞制药(集团)有限公司 | A kind of desmodium production and processing two-dimensional mixing machine with shock-absorbing function |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905790A (en) * | 2019-12-13 | 2020-03-24 | 江苏三臺消防科技有限公司 | Novel horizontal pump unit for diesel power well |
| CN110985406A (en) * | 2019-12-19 | 2020-04-10 | 盐城海纳汽车零部件有限公司 | Engine cooling water pump that can finely tune |
| CN111734646A (en) * | 2020-07-06 | 2020-10-02 | 安徽埃斯克制泵有限公司 | Corrosion-resistant centrifugal pump capable of being cooled rapidly |
| CN111734646B (en) * | 2020-07-06 | 2021-06-04 | 安徽埃斯克制泵有限公司 | Corrosion-resistant centrifugal pump capable of being cooled rapidly |
| CN111917246A (en) * | 2020-08-07 | 2020-11-10 | 韩城盈达气体有限公司 | Novel efficient nitrogen press motor circulative cooling device |
| CN112128117A (en) * | 2020-09-25 | 2020-12-25 | 朱克龙 | Centrifugal pump capable of quickly dissipating heat |
| CN112177984A (en) * | 2020-09-25 | 2021-01-05 | 上海沃克通用设备有限公司 | Noise reduction structure of fan |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191122 |