CN110397621A - A kind of axial-flow pump impeller used for chemical reactor - Google Patents
A kind of axial-flow pump impeller used for chemical reactor Download PDFInfo
- Publication number
- CN110397621A CN110397621A CN201910663026.7A CN201910663026A CN110397621A CN 110397621 A CN110397621 A CN 110397621A CN 201910663026 A CN201910663026 A CN 201910663026A CN 110397621 A CN110397621 A CN 110397621A
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- Prior art keywords
- bar
- limitation
- axial
- flow pump
- groove
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Classifications
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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
- F04D29/18—Rotors
- F04D29/181—Axial flow rotors
-
- 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
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to axial-flow pump technical fields, and disclose a kind of axial-flow pump impeller used for chemical reactor, including carrying bar, docking groove is offered on the left of the load bar, the internal activity of the docking groove, which is equipped with one end, to be run through and extends to the shaft carried on the left of bar, the right side opening of the shaft is equipped with locating slot, and one end is fixedly installed on the right side of the inner wall of the docking groove and runs through and extend to the locating pin inside locating slot, the mounting groove for being provided with and carrying on bar is equipped at the top of the inner wall of the docking groove.The axial-flow pump impeller used for chemical reactor, by the limitation bar being arranged on pull rod and the limitation screw on bar is carried, user is when using equipment, if user needs replacing new wheel blade, user rotates limitation screw and is detached from limitation thread groove, user pulls pull rod, and pull rod drives limitation bar to be detached from limiting groove, carries bar and shaft loses limit, so, the dismounting and change of wheel blade becomes the worry for simply eliminating user, the use for the person of being convenient to use.
Description
Technical field
The present invention relates to axial-flow pump technical field, specially a kind of axial-flow pump impeller used for chemical reactor.
Background technique
The pump that axial-flow pump conveys liquid in the axial direction by the active force that the blade of rotary blade generates liquid, has vertical
Formula, horizontal, inclined and tubular several, China successively had developed Large Axial Flow Pump totally 664 sets, specific revolution from 1961
N is respectively 500,700,850,1000,1250,1400,1600 etc.；Runner diameter be 1.6m, 2.0m, 2.8m, 3.0m, 3.1m,
4.0m and 4.5m, in Jiangsu, Hubei, Hunan, Anhui, Guangdong, Tianjin, Shandong, Shanxi, Shaanxi, Xinjiang etc. 16 provinces, city, from
It controls area and builds up Large Axial Flow Pump Station totally 114,630,000 kW of total installation of generating capacity.
Traditional axial-flow pump impeller structure is simple, and user is rather troublesome when replacing axial-flow pump impeller, axial-flow pump impeller
It being difficult to dismantle, installation fixation is also rather time-consuming and laborious, and user is rather worried to this, so propose a kind of chemical reactor axis
Flow impeller of pump.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of axial-flow pump impeller used for chemical reactor, have conveniently more
The advantages that changing impeller, it is simple to solve traditional axial-flow pump impeller structure, and user is rather troublesome when replacing axial-flow pump impeller,
Axial-flow pump impeller is difficult to dismantle, and installation fixation is also rather time-consuming and laborious, user's problem rather worried to this.
(2) technical solution
To realize the above-mentioned purpose for being convenient for changing impeller, the invention provides the following technical scheme: a kind of chemical reactor is used
Axial-flow pump impeller, including bar is carried, docking groove is offered on the left of the load bar, the internal activity of the docking groove is equipped with one end
Run through and extend to the shaft carried on the left of bar, the right side opening of the shaft is equipped with locating slot, and the inner wall right side of the docking groove is solid
The locating pin inside locating slot is run through and extended in Dingan County equipped with one end, is equipped at the top of the inner wall of the docking groove and is provided with load
Mounting groove on bar, the top of the shaft and the inside for being located at docking groove offer limiting groove, the top movable of the shaft
One end is installed and runs through and extend to the pull rod inside mounting groove, the outside of the pull rod and inside for being located at mounting groove is socketed with
Reset spring, the bottom of the pull rod are fixedly installed with one end and run through and extend to the limitation bar inside limiting groove, the load bar
Bottom offer the tapped through hole that one end is connected with docking groove, the bottom of the shaft and inside for being located at docking groove opens up
Restricted thread groove, the bottom for carrying bar are movably installed with one end through tapped through hole and extend to inside limitation thread groove
Screw is limited, the outside for carrying bar is socketed with the wheel blade that quantity is four, and the outside of the shaft is socketed with limitation lantern ring, institute
Stating limitation lantern ring includes lower ring and upper ring, and the top movable of the lower ring is equipped with ring, and the left and right sides of the upper ring is solid
Dingan County is equipped with side plate, and the left and right sides of the lower ring is fixedly installed with wing plate, and the bottom of the wing plate offers one end and runs through
And the receiving opening at the top of wing plate is extended to, the bottom of the wing plate is plugged with one end through receiving opening and extends on wing plate
The adjusting rod of side offers screw thread regulating tank at the top of the adjusting rod, and the bottom of the side plate is fixedly installed with one end and runs through
And extend to the screw thread adjusting rod inside screw thread regulating tank, the outside of the adjusting rod and be located at wing plate above and below cover
It is connected to snap ring, the bottom of the adjusting rod is fixedly installed with turning handle, and the top and bottom of the limitation lantern ring are fixedly installed with
Extension rod, the opposite side of the extension rod are fixedly installed with jointing plate, the opposite side of the jointing plate and are located at extension rod
The left and right sides be movably installed with the mounting screw that one end is run through and extends to the opposite side of jointing plate.
Preferably, the locating pin is stainless steel lag screws, and the left side of the locating pin uses inclined design, the locating pin and
Locating slot matches.
Preferably, the tapped through hole, limitation thread groove match with limitation screw, and the bottom wall of the limitation bar uses
Inclined design.
Preferably, the pull rod includes vertical bar and pressing plate, and the bottom of the vertical bar is fixedly installed with pressing plate, the pressing plate
Diameter is greater than the outer diameter of reset spring.
Preferably, the shaft and limitation lantern ring match, and the receiving opening and adjusting rod match.
Preferably, the screw thread regulating tank and screw thread adjusting rod match, and the bottom of the screw thread adjusting rod is inclined-plane.
Preferably, the outer diameter of the snap ring is greater than the diameter of receiving opening, and the turning handle is stainless steel.
Preferably, the side plate and wing plate are high-carbon steel, and the extension rod is nickel-base alloy bar.
Preferably, the inside of the jointing plate offers the screw thread turn hole to match with mounting screw, the mounting screw
Length be five centimetres.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of axial-flow pump impeller used for chemical reactor, have following beneficial to effect
Fruit:
1, the axial-flow pump impeller used for chemical reactor by the limitation bar being arranged on pull rod and carries the limitation spiral shell on bar
Nail, user is when using equipment, if user needs replacing new wheel blade, user rotates limitation screw and is detached from limitation spiral shell
Groove, user pull pull rod, and pull rod drives limitation bar to be detached from limiting groove, carry bar and shaft loses limit, in this way, wheel blade is torn open
Unloading replacement becomes the worry for simply eliminating user, the use for the person of being convenient to use.
2, the axial-flow pump impeller used for chemical reactor passes through the adjusting on the screw thread adjusting rod and wing plate that are arranged on side plate
Bar, for user when using equipment, user extends to screw thread adjusting rod in screw thread regulating tank, rotates turning handle, and adjusting rod turns
Dynamic, adjusting rod rotates into screw thread regulating tank, in this way, lower ring and the fitting limitation shaft displacement of upper ring, prevent shaft from rotating
Middle shake has further facilitated the use of user.
Detailed description of the invention
Fig. 1 is a kind of axial-flow pump impeller used for chemical reactor structural schematic diagram proposed by the present invention；
Fig. 2 is enlarged drawing at A in a kind of axial-flow pump impeller used for chemical reactor Fig. 1 proposed by the present invention；
Fig. 3 is a kind of axial-flow pump impeller used for chemical reactor left view proposed by the present invention.
In figure: 1 carries bar, 2 docking grooves, 3 shafts, 4 locating slots, 5 locating pins, 6 mounting grooves, 7 mounting screws, 8 limiting grooves, 9
Pull rod, 10 reset springs, 11 limitation bars, 12 tapped through holes, 13 limitation thread grooves, 14 limitation screws, 15 wheel blades, 16 limitation sets
Ring, 17 lower rings, ring on 18,19 side plates, 20 wing plates, 21 receiving openings, 22 adjusting rods, 23 screw thread regulating tanks, 24 screw thread adjusting rods,
25 snap rings, 26 turning handles, 27 extension rods, 28 jointing plates.
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.
Please refer to Fig. 1-3, a kind of axial-flow pump impeller used for chemical reactor, including carry bar 1, the left side for carrying bar 1 offers pair
Access slot 2, the internal activity of docking groove 2 are equipped with one end and run through and extend to the shaft 3 for carrying 1 left side of bar, and the right side of shaft 3 opens up
There is locating slot 4, is fixedly installed with one end on the right side of the inner wall of docking groove 2 and runs through and extend to the locating pin 5 inside locating slot 4, it is fixed
Position nail 5 is stainless steel lag screws, and the left side of locating pin 5 uses inclined design, and locating pin 5 and locating slot 4 match, docking groove 2 it is interior
The mounting groove 6 for being provided with and carrying on bar 1 is installed, the top of the shaft 3 and inside for being located at docking groove 2 offers limiting groove at the top of wall
8, the top movable of shaft 3 is equipped with one end and runs through and extend to the pull rod 9 inside mounting groove 6, the outside of pull rod 9 and is located at peace
The inside of tankage 6 is socketed with reset spring 10, and pull rod 9 includes vertical bar and pressing plate, and the bottom of vertical bar is fixedly installed with pressing plate, pressing plate
Diameter be greater than reset spring 10 outer diameter, the bottom of pull rod 9 is fixedly installed with one end and runs through and extend to inside limiting groove 8
Limit bar 11, the bottom for carrying bar 1 offers the tapped through hole 12 that one end is connected with docking groove 2, the bottom of shaft 3 and positioned at pair
The inside of access slot 2 opens up restricted thread groove 13, and the bottom for carrying bar 1 is movably installed with one end through tapped through hole 12 and extends to
The limitation screw 14 inside thread groove 13 is limited, tapped through hole 12, limitation thread groove 13 match with limitation screw 14, limit
The bottom wall of bar 11 uses inclined design, and the outside for carrying bar 1 is socketed with the wheel blade 15 that quantity is four, and the outside of shaft 3 is socketed with
Lantern ring 16 is limited, limitation lantern ring 16 includes lower ring 17 and upper ring 18, and the top movable of lower ring 17 is equipped with ring 18, upper ring 18
The left and right sides is fixedly installed with side plate 19, and the left and right sides of lower ring 17 is fixedly installed with wing plate 20, and the bottom of wing plate 20 is opened
Run through and extend to the receiving opening 21 at 20 top of wing plate equipped with one end, the bottom of wing plate 20 is plugged with one end through receiving opening
21 and the adjusting rod 22 of the top of wing plate 20 is extended to, shaft 3 and limitation lantern ring 16 match, 22 phase of receiving opening 21 and adjusting rod
Matching, the top of adjusting rod 22 offer screw thread regulating tank 23, and the bottom of side plate 19 is fixedly installed with one end and runs through and extend to
Screw thread adjusting rod 24 inside screw thread regulating tank 23, screw thread regulating tank 23 and screw thread adjusting rod 24 match, screw thread adjusting rod 24
Bottom be inclined-plane, the outside of adjusting rod 22 and be located at wing plate 20 above and below be socketed with snap ring 25, adjusting rod 22
Bottom is fixedly installed with turning handle 26, and the outer diameter of snap ring 25 is greater than the diameter of receiving opening 21, and turning handle 26 is stainless steel, limits lantern ring
16 top and bottom are fixedly installed with extension rod 27, and side plate 19 and wing plate 20 are high-carbon steel, and extension rod 27 is Ni-based conjunction
Golden bar, the opposite side of extension rod 27 are fixedly installed with jointing plate 28, and the inside of jointing plate 28 offers and 7 phase of mounting screw
The screw thread turn hole matched, the length of mounting screw 7 are five centimetres, the opposite side of jointing plate 28 and the left and right two for being located at extension rod 27
Side is movably installed with the mounting screw 7 that one end is run through and extends to the opposite side of jointing plate 28, by being arranged on pull rod 9
It limits bar 11 and carries the limitation screw 14 on bar 1, user is when using equipment, if user needs replacing new wheel blade
15, user rotates limitation screw 14 and is detached from limitation thread groove 13, and user pulls pull rod 9, and pull rod 9 drives limitation bar 11 to be detached from
Limiting groove 8, carries bar 1 and shaft 3 loses limit, in this way, the dismounting and change of wheel blade 15 becomes simply, to eliminate the tired of user
Angry, the use for the person of being convenient to use is made by the adjusting rod 22 on the screw thread adjusting rod 24 and wing plate 20 that are arranged on side plate 19
For user when using equipment, user extends to screw thread adjusting rod 24 in screw thread regulating tank 23, rotates turning handle 26, adjusting rod 22
Rotation, adjusting rod 24 rotate into screw thread regulating tank 23, in this way, lower ring 17 and the fitting limitation shaft 3 of upper ring 18 are displaced, prevent
Shaft 3 is shaken in rotation, has further facilitated the use of user.
In conclusion the axial-flow pump impeller used for chemical reactor, by the limitation bar 11 being arranged on pull rod 9 and carries bar 1
On limitation screw 14, user is when using equipment, if user needs replacing new wheel blade 15, user rotates limitation
Screw 14 is detached from limitation thread groove 13, and user pulls pull rod 9, and pull rod 9 drives limitation bar 11 to be detached from limiting groove 8, carries bar 1 and turns
Axis 3 loses limit, in this way, the dismounting and change of wheel blade 15 becomes the worry for simply eliminating user, the person's of being convenient to use makes
With by the adjusting rod 22 on the screw thread adjusting rod 24 and wing plate 20 that are arranged on side plate 19, user is made when using equipment
User extends to screw thread adjusting rod 24 in screw thread regulating tank 23, rotates turning handle 26, and adjusting rod 22 rotates, and adjusting rod 24 is rotated into
Enter in screw thread regulating tank 23, in this way, lower ring 17 and the fitting limitation shaft 3 of upper ring 18 are displaced, prevent shaft 3 from shaking in rotation,
The use for having further facilitated user, it is simple to solve traditional axial-flow pump impeller structure, and user is in replacement axial-flow pump leaf
Rather troublesome when wheel, axial-flow pump impeller is difficult to dismantle, and installation fixation is also rather time-consuming and laborious, and user is rather worried to this to be asked
Topic.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
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 (9)
1. a kind of axial-flow pump impeller used for chemical reactor, including carry bar (1), it is characterised in that: it is opened up on the left of the load bar (1)
Have docking groove (2), the internal activity of the docking groove (2), which is equipped with one end, to be run through and extend to the shaft carried on the left of bar (1)
(3), the right side opening of the shaft (3) is equipped with locating slot (4), is fixedly installed with one end on the right side of the inner wall of the docking groove (2) and passes through
The internal locating pin (5) of locating slot (4) is worn and extended to, is equipped at the top of the inner wall of the docking groove (2) and is provided with load bar (1)
On mounting groove (6), the top of the shaft (3) and be located at docking groove (2) inside offer limiting groove (8), the shaft
(3) top movable is equipped with one end and runs through and extend to the internal pull rod (9) of mounting groove (6), the outside of the pull rod (9) and
It is socketed with reset spring (10) positioned at the inside of mounting groove (6), the bottom of the pull rod (9) is fixedly installed with one end and runs through and prolong
The internal limitation bar (11) of limiting groove (8) is reached, the bottom for carrying bar (1) offers what one end was connected with docking groove (2)
Tapped through hole (12), the bottom of the shaft (3) and the inside for being located at docking groove (2) open up restricted thread groove (13), described
The bottom for carrying bar (1) is movably installed with one end through tapped through hole (12) and extends to the internal limitation spiral shell of limitation thread groove (13)
It follows closely (14), the outside for carrying bar (1) is socketed with the wheel blade (15) that quantity is four, and the outside of the shaft (3) is socketed with limit
Lantern ring (16) processed, the limitation lantern ring (16) include lower ring (17) He Shanghuan (18), the top movable installation of the lower ring (17)
Have upper ring (18), the left and right sides of the upper ring (18) is fixedly installed with side plate (19), the left and right sides of the lower ring (17)
It is fixedly installed with wing plate (20), the bottom of the wing plate (20) offers one end and runs through and extend to the appearance at the top of wing plate (20)
It receives through-hole (21), the bottom of the wing plate (20) is plugged with one end through receiving opening (21) and extends to above wing plate (20)
Adjusting rod (22) offers screw thread regulating tank (23) at the top of the adjusting rod (22), the fixed peace in the bottom of the side plate (19)
Run through and extend to the internal screw thread adjusting rod (24) of screw thread regulating tank (23) equipped with one end, the outside of the adjusting rod (22) and
It is socketed with above and below wing plate (20) snap ring (25), the bottom of the adjusting rod (22) is fixedly installed with turning handle
(26), the top and bottom of limitation lantern ring (16) are fixedly installed with extension rod (27), and the extension rod (27) is opposite
Side is fixedly installed with jointing plate (28), the opposite side of the jointing plate (28) and be located at extension rod (27) the left and right sides it is equal
It is movably installed with the mounting screw (7) that one end is run through and extends to the opposite side of jointing plate (28).
2. a kind of axial-flow pump impeller used for chemical reactor according to claim 1, it is characterised in that: the locating pin (5)
Left side for stainless steel lag screws, the locating pin (5) uses inclined design, and the locating pin (5) and locating slot (4) match.
3. a kind of axial-flow pump impeller used for chemical reactor according to claim 1, it is characterised in that: the tapped through hole
(12), limitation thread groove (13) matches with limitation screw (14), and the bottom wall of limitation bar (11) uses inclined design.
4. a kind of axial-flow pump impeller used for chemical reactor according to claim 1, it is characterised in that: pull rod (9) packet
Vertical bar and pressing plate are included, the bottom of the vertical bar is fixedly installed with pressing plate, and the diameter of the pressing plate is greater than the outer of reset spring (10)
Diameter.
5. a kind of axial-flow pump impeller used for chemical reactor according to claim 1, it is characterised in that: the shaft (3) and
Limitation lantern ring (16) matches, and the receiving opening (21) and adjusting rod (22) match.
6. a kind of axial-flow pump impeller used for chemical reactor according to claim 1, it is characterised in that: the screw thread regulating tank
(23) match with screw thread adjusting rod (24), the bottom of the screw thread adjusting rod (24) is inclined-plane.
7. a kind of axial-flow pump impeller used for chemical reactor according to claim 1, it is characterised in that: the snap ring (25)
Outer diameter is greater than the diameter of receiving opening (21), and the turning handle (26) is stainless steel.
8. a kind of axial-flow pump impeller used for chemical reactor according to claim 1, it is characterised in that: the side plate (19) and
Wing plate (20) is high-carbon steel, and the extension rod (27) is nickel-base alloy bar.
9. a kind of axial-flow pump impeller used for chemical reactor according to claim 1, it is characterised in that: the jointing plate (28)
Inside offer the screw thread turn hole to match with mounting screw (7), the length of the mounting screw (7) is five centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663026.7A CN110397621A (en) | 2019-07-22 | 2019-07-22 | A kind of axial-flow pump impeller used for chemical reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663026.7A CN110397621A (en) | 2019-07-22 | 2019-07-22 | A kind of axial-flow pump impeller used for chemical reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110397621A true CN110397621A (en) | 2019-11-01 |
Family
ID=68324862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910663026.7A Pending CN110397621A (en) | 2019-07-22 | 2019-07-22 | A kind of axial-flow pump impeller used for chemical reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110397621A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946529A (en) * | 2020-08-28 | 2020-11-17 | 杨克瑞 | Variable speed protection hydroelectric power generation equipment |
| CN113074133A (en) * | 2020-01-06 | 2021-07-06 | 南京科威环保科技有限公司 | Method for eliminating blade tip stall of industrial fan |
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| CN107806427A (en) * | 2017-09-28 | 2018-03-16 | 南通大鲸智能科技有限公司 | One kind energy-conservation bass environment-friendly type Middle pressure draught fan |
| CN207568873U (en) * | 2017-10-17 | 2018-07-03 | 天津振达泵业有限公司 | A kind of dry type installs proof submersible sand discharging pump |
| CN109386308A (en) * | 2018-12-11 | 2019-02-26 | 阜宁隆德机械制造有限责任公司 | A kind of easy-to-mount impeller |
| CN208749676U (en) * | 2018-08-27 | 2019-04-16 | 江苏唐成智能科技有限公司 | A kind of fan clamping structure for brushless motor |
| CN208763982U (en) * | 2018-08-20 | 2019-04-19 | 温州北工汽车电器有限公司 | A kind of cooling fan assembly |
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| JPS59229095A (en) * | 1983-06-10 | 1984-12-22 | Hitachi Ltd | Preventing device for detachment of pump impeller |
| DE102007044646A1 (en) * | 2007-09-18 | 2009-03-26 | Ksb Aktiengesellschaft | wheelmounting |
| CN203081927U (en) * | 2013-02-04 | 2013-07-24 | 大连昌宇精机有限公司 | Unilateral installation separate shaft seat |
| CN204327594U (en) * | 2014-11-25 | 2015-05-13 | 江苏中联风能机械有限公司 | A kind of dismountable axial-flow blower |
| CN205478545U (en) * | 2015-12-31 | 2016-08-17 | 上海连成（集团）有限公司 | A connection structure that is arranged in small -size axial -flow pump pump shaft and impeller |
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| CN107806427A (en) * | 2017-09-28 | 2018-03-16 | 南通大鲸智能科技有限公司 | One kind energy-conservation bass environment-friendly type Middle pressure draught fan |
| CN207568873U (en) * | 2017-10-17 | 2018-07-03 | 天津振达泵业有限公司 | A kind of dry type installs proof submersible sand discharging pump |
| CN208763982U (en) * | 2018-08-20 | 2019-04-19 | 温州北工汽车电器有限公司 | A kind of cooling fan assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074133A (en) * | 2020-01-06 | 2021-07-06 | 南京科威环保科技有限公司 | Method for eliminating blade tip stall of industrial fan |
| CN111946529A (en) * | 2020-08-28 | 2020-11-17 | 杨克瑞 | Variable speed protection hydroelectric power generation equipment |
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Application publication date: 20191101 |
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| RJ01 | Rejection of invention patent application after publication |