CN101280791A - Centrifuge synchronous concurrent draught fan impeller - Google Patents
Centrifuge synchronous concurrent draught fan impeller Download PDFInfo
- Publication number
- CN101280791A CN101280791A CNA2008100157248A CN200810015724A CN101280791A CN 101280791 A CN101280791 A CN 101280791A CN A2008100157248 A CNA2008100157248 A CN A2008100157248A CN 200810015724 A CN200810015724 A CN 200810015724A CN 101280791 A CN101280791 A CN 101280791A
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- impeller
- water conservancy
- conservancy diversion
- suction water
- pressuring plate
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Abstract
The invention discloses a centrifugal synchronous downstream fan impeller which comprises an impeller shaft bush, an impeller shaft disk, impeller blades and an impeller inside airflow channel formed between the interior of the impeller and the impeller blades. The centrifugal synchronous downstream fan impeller is characterized in that: suction-diversion pressurized plates are arranged between the impeller blades and aslant positioned in the impeller inside airflow channel along the radial direction of the impeller in a sequence of front to back and surface to interior, the front ends of the suction-diversion pressurized plates are provided with suction-diversion pressurized inlets which are arranged outside the axial sidewall of the impeller and the rear end of the suction-diversion pressurized plates are provided with suction-diversion pressurized outlets which are arranged inside the impeller inside airflow channel; and the longitudinal edges of the suction-diversion pressurized plates are connected with the longitudinal sidewalls of the impeller blades. Compared with the prior art, the fan impeller of the invention has the advantages of simple structure, small size, low production cost, energy saving, good suction and pressurized effects, high efficiency, low energy consumption, being quiet, etc.
Description
Technical field
The present invention relates to a kind of centrifuge synchronous concurrent draught fan impeller, belong to the air purifying process field.
Background technique
Various centrifugal fan impellers (the comprising centrifugal rear flow fan impeller) complex structure of people's use now; bulky; the use material is many; involve great expense, flow is little, and pressurized effect is poor; efficient is low; noise is big, causes whole typhoon machine consumes resources how but can not save the energy significantly, is unfavorable for environmental protection again.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art and provide a kind of centrifugal fan impeller that can make simple in structure, volume is little, and cost is low, saves resource, and the suction pressurized effect is good, the efficient height, and power consumption is few, the centrifuge synchronous concurrent draught fan impeller that noise is low.
Purpose of the present invention can reach by following technical measures: centrifuge synchronous concurrent draught fan impeller, comprise impeller sleeve, the impeller reel, impeller blade, the inboard air-flow path of impeller that forms between the inboard impeller blade of impeller, characteristics are, be provided with suction water conservancy diversion pressuring plate between the impeller blade, suction water conservancy diversion pressuring plate along impeller radially, by then preceding, from outward appearance to inner essence tilt to place in the inboard air-flow path of impeller, suction water conservancy diversion pressuring plate front end is provided with suction water conservancy diversion supercharging import, suction water conservancy diversion supercharging import places the impeller axial sides outside, suction water conservancy diversion pressuring plate rear end is provided with suction water conservancy diversion supercharging outlet, suction water conservancy diversion supercharging outlet places the inboard air-flow path of impeller inboard, and suction water conservancy diversion pressuring plate longitudinal edge connects with the vertical side of impeller blade.
In order further to realize purpose of the present invention, described suction water conservancy diversion pressuring plate is located at impeller blade the place ahead, its vertical posterior edges connects with the impeller blade front side surface, and the vertical forward edge of suction water conservancy diversion pressuring plate is provided with unobstructed air-flow path with between another adjacent impeller blade rear side.
In order further to realize purpose of the present invention, described suction water conservancy diversion pressuring plate 5 radial extremity become the bending structure form, and the supercharging of suction water conservancy diversion exports along impeller radially by the preceding impeller outlet that then points to.
In order further to realize purpose of the present invention, described suction water conservancy diversion pressuring plate radial extremity connects with another axial side wall of impeller.
In order to realize that further purpose of the present invention, described impeller are provided with the axial sides of aspirating water conservancy diversion supercharging import and do not establish the leaf blade disk.
Centrifuge synchronous concurrent draught fan impeller designs at the shortcoming of existing various old-fashioned centrifugal blower fan blade wheels and centrifugal rear flow fan impeller.
General old-fashioned centrifugal blower fan blade wheel and rear flow fan impeller must be provided with the leaf blade disk and (or establish single leaf dish, or establish the double leaf dish), though the centrifugal blower fan blade wheel that has is not established leaf dish (or the two-sided leaf dish of not establishing, or only one side is established single leaf dish), but this impeller is not established the axial sides of leaf dish must be near fan casing axial sides (impeller side or body side perpendicular to the impeller medial axis are called axial sides), various centrifugal blower fan blade wheels are radially anterior, and (it is radially anterior to be called impeller near the impeller central position, being called radially rear portion of impeller away from the impeller central position) neutral position must be provided with impeller inlet, impeller inlet air intake in the middle of relying on.Though centrifugal rear flow fan impeller can not established special impeller leaf dish, it must be provided with impeller blade negative pressure partitioning wall, and blade negative pressure partitioning wall is equivalent to the effect of leaf blade disk.Though centrifugal rear flow fan also can radially not established impeller inlet and only depend on impeller negative pressure gap suction external substance in the anteriomedial position at impeller, but this negative pressure gap only is the part position between the two impeller blade thrust walls, just the impeller axial sides has only segment space position suction processing external substance, add and have the rotation barrier effect of negative pressure partitioning wall, like this, both strengthened the draught fan impeller frictional loss, and caused the most of laterally gas of impeller shaft again because of stopping that can not enter impeller is processed.The centrifuge synchronous concurrent draught fan impeller axial sides, since be provided with by preceding then, from outward appearance to inner essence suction water conservancy diversion pressuring plate, directly, almost can make the whole axial sides of impeller (except impeller sleeve or impeller reel axial sides position) can both externally aspirate material and give processing by centrifugal action.Simultaneously because centrifuge synchronous concurrent draught fan can not have the leaf dish, or do not have stopping and isolating of centrifugal rear flow fan impeller blade negative pressure partitioning wall, the frictional loss meeting is much smaller, and obviously, the centrifuge synchronous concurrent draught fan impeller flow is big, and pressurized effect is good, the efficient height.
Suction water conservancy diversion pressuring plate can directly utilize the inboard action of centrifugal force of impeller from impeller axial sides intake-gas material, and the gaseous matter of suction radially then, is from outward appearance to inner essence directly imported in the inboard air-flow path of impeller by preceding along impeller, in suction water conservancy diversion process, can directly transmit energy and make gas quicken supercharging again simultaneously gaseous matter.It is consistent that the gaseous matter of suction water conservancy diversion pressuring plate suction water conservancy diversion flows to the rotating centrifugal force direction.Just because of the such working principle of design, the present invention is named as centrifuge synchronous concurrent draught fan impeller.
Suction water conservancy diversion pressuring plate is located at impeller blade (impeller blade is meant the thrust wall of general centrifugal blower fan blade wheel blade and centrifugal rear flow fan impeller blade), be meant that suction water conservancy diversion pressuring plate tilts across the air-flow path between the impeller blade (impeller blade, the inboard air-flow path of impeller, it radially is called vertically, and the width of the spacing between the impeller blade, suction water conservancy diversion pressuring plate is called laterally).This across can be entirely across, also can be half across.Across being meant suction water conservancy diversion pressuring plate across the air-flow path between whole impeller blade, suction water conservancy diversion pressuring plate both lateral sides edge all connects with two vertical sides of impeller blade between the inboard air-flow path of impeller entirely.Partly be meant that across formula its suction water conservancy diversion pressuring plate is narrower across the suction water conservancy diversion pressuring plate of formula than complete, a horizontal side margin connects with vertical side of impeller blade in the air-flow path of impeller inboard.
Between interior two impeller blades of the inboard air-flow path of impeller, can radially only establish a suction water conservancy diversion pressuring plate, also radially front and back are provided with suction water conservancy diversion pressuring plate more than two, and this is provided with several, should be decided according to the actual requirements.
Because different fan impeller blade shapes are different, the shape of the inboard air-flow path of its impeller is also different, suction water conservancy diversion pressuring plate shape correspondingly is also different, aspirate the water conservancy diversion pressuring plate in other words and can be designed to multiple different shape, as directly plate shaped, arc plate shape, crooked shape, airfoil or the like.
Can be (before forward impeller turns to a side to be between interior two impeller blades of the inboard air-flow path of impeller in an impeller blade the place ahead, impeller turns to a side to be the back dorsad) be provided with half across formula suction water conservancy diversion pressuring plate, this suction water conservancy diversion pressuring plate forward edge is to being provided with the inboard unobstructed air-flow path of impeller between another adjacent impeller blade rear side.Should partly connect with the vertical leading flank of the impeller blade at its rear across formula suction water conservancy diversion pressuring plate posterior edges.Should half across formula suction water conservancy diversion pressuring plate along the inboard air-flow path of this impeller radially (vertically) can only establish one, also can directly forward design several forwards, backwards along the inboard air-flow path of impeller.Half aspirates water conservancy diversion pressuring plate outlet end across formula can join mutually with its corresponding impeller axial side wall (referring to leaf dish or negative pressure partitioning wall), because this suction water conservancy diversion pressuring plate front side is provided with unobstructed air-flow path, after suction water conservancy diversion pressuring plate outlet end is connected with its corresponding impeller axial side wall, can not cause the inboard air-flow path of impeller blocked.Can not join mutually with another axial side wall of corresponding impeller across the whole outlet end of formula suction water conservancy diversion pressuring plate entirely,, can cause the inboard air-flow path of impeller blocked if joined mutually.
Suction water conservancy diversion pressuring plate can intersect vertically with the vertical side of impeller blade and connect, and also tiltable joins mutually.
After impeller is provided with suction water conservancy diversion pressuring plate, the impeller axial sides that is provided with suction water conservancy diversion supercharging import can not established the leaf dish, or only establishes part leaf dish, and the impeller axial sides of suction water conservancy diversion supercharging outlet end correspondence can be provided with the leaf dish, also the leaf dish can be set, or only establish part leaf dish.Do not establish the leaf dish, and only establish part leaf dish position pairing suction water conservancy diversion pressuring plate outlet end and should make the bending structure form, the bending part Way out of bending structure form should directly point to impeller footpath impeller outlet to the back-end, can guarantee like this to aspirate the water conservancy diversion pressuring plate from impeller shaft laterally the air-flow in the inboard air-flow path of inspiration impeller can axially not overflow impeller, and can only flow to the outlet of impeller cylindrical, then be discharged from impeller again.
A draught fan impeller can also can aspirate the water conservancy diversion pressuring plate from impeller two axial sides along the impeller radial direction from preceding then, from outward appearance to inner essence the setting from impeller one axial sides radially from the preceding suction water conservancy diversion pressuring plate that then, from outward appearance to inner essence is provided with in the inboard air-flow path of impeller in the inboard air-flow path of impeller.
In order to guarantee that the inboard air-flow path of impeller can fully hold air flow rate, abundant deceleration diffusion, the inboard air-flow path of this impeller should make one axially or two axial expanssion types, and this just requires draught fan impeller to be expanded gradually along an axial direction or two axial directions by radially anterior extremely radially rear portion to amplify.
Centrifuge synchronous concurrent draught fan impeller one axial sides is established full suction water conservancy diversion supercharging import, by the pumping action of suction water conservancy diversion pressuring plate by centrifugal force, can make the whole axial sides of impeller can both aspirate external substance.
If full suction water conservancy diversion supercharging import is all established in two axial sides, then can make draught fan impeller all aspirate external substance from two whole axial sides.As seen the centrifuge synchronous concurrent draught fan impeller flow is big, can compare with the axial fan impeller, but its wind pressure ratio general axis flow fan blast height.
General centrifugal blower, the draught fan impeller of some specifications and models, in order to increase the air quantity flow, and in the middle of impeller one axial sides or two axial sides, large diameter impeller inlet is set, but the impeller inlet diameter is big more, the impeller blade radial length is just more little, the impeller blade radial length is little, and suction is just poor, and is just few to the energy of gas transfer, thereby whole blower fan suction effect is poor, and blast is also very low.Centrifuge synchronous concurrent draught fan impeller, because impeller inlet is located at whole impeller axial sides, the impeller blade radial length is big, and suction water conservancy diversion pressuring plate length is also big, is again directly by action of centrifugal force suction external substance, and, suction water conservancy diversion pressuring plate and impeller blade can be simultaneously all to the gas transfer energy, thereby centrifuge synchronous concurrent draught fan impeller suction is strong, and flow is big, the blast height, much more superior than general centrifugal blower fan blade wheel and centrifugal rear flow fan impeller.
Centrifuge synchronous concurrent draught fan impeller is not generally established the double leaf dish, or only establishes single leaf dish, or does not establish Ye Paner and only establish blade negative pressure partitioning wall, and its frictional loss is much smaller, thereby its efficient is just much bigger, and friction noise is much smaller.
Description of drawings
Fig. 1-embodiment of the invention 1 blade wheel structure schematic representation;
Fig. 2-embodiment of the invention 1 impeller suction water conservancy diversion pressuring plate structural representation;
Schematic representation is used in the assembling of Fig. 3-embodiment of the invention 1 impeller;
Fig. 4-embodiment of the invention 2 blade wheel structure schematic representation;
Fig. 5-embodiment of the invention 2 impellers suction water conservancy diversion pressuring plate structural representation;
Fig. 6-embodiment of the invention 3 impellers suction water conservancy diversion pressuring plate structural representation;
Fig. 7-embodiment of the invention 4 impellers suction water conservancy diversion pressuring plate structural representation;
Fig. 8-embodiment of the invention 5 impellers suction water conservancy diversion pressuring plate structural representation;
Schematic representation is used in the assembling of Fig. 9-embodiment of the invention 5 impellers.
The explanation of accompanying drawing drawing:
1 impeller sleeve, 2 impeller reels, 3 impeller blades, the inboard air-flow path of 4 impellers, 5 suction water conservancy diversion pressuring plates, 6 suction water conservancy diversion supercharging imports, 7 suction water conservancy diversion supercharging outlets, 8 unobstructed air-flow paths, the outlet of 9 impeller cylindricals, 10 leaf dishes (negative pressure partitioning wall), 11 motors, 12 fan casings, 13 air inlets, 14 fan outlets, 15 middle reinforcings are isolated the leaf dish, and 16 front axles are to air-flow path, 17 backs are air-flow path axially, and 18 suction water conservancy diversion pressuring plates are rear end radially, 19 blower fan rear side intake grills.
Below in conjunction with drawings and Examples the present invention is done at length and to explain.
Embodiment
Present embodiment is assemblied in the fan casing 12, connect with motor 11 motor shafts, the rotation of dependence driven by motor, fan casing 12 is provided with air inlet 13 and fan outlet 14, air inlet 13 is located at the casing axial front side, its diameter equates with impeller diameter, and the draught fan impeller axial front side machine intake grill that follows the wind is just relative.
During work, the suction water conservancy diversion pressuring plate of impeller axial front side directly by the effect of rotary centrifugal force by suction water conservancy diversion supercharging import, impel the whole impeller axial front side can be to air inlet strong pumping ambient atmos.The gas that suction enters the impeller inboard absorbs energy and quickens pressurization by impeller blade, suction water conservancy diversion pressuring plate again.Because the whole front axle of impeller is not established the leaf dish to the side, so there is not the leaf disk friction loss.Clearly, this routine air quantity is big, the blast height, and the efficient height, noise is low.
The adaptation of this example is assemblied in ventilation, the air blast breeze fan uses.
During work, the impeller front axle aspirates the ambient atmos material to the side jointly by suction water conservancy diversion supercharging import and unobstructed air-flow path import, be that the whole front axle of impeller is to all external intake-gas material in side, corresponding with it air inlet bore is also bigger, therefore, whole compressor flow is just bigger.Because suction water conservancy diversion pressuring plate is half across formula, only accounts for the inboard air-flow path part of impeller position, this body structure is narrow, and size is little, and is in light weight, thereby this wheel friction loss is littler, and mechanical efficiency can be higher.
The same with example 1, this example adapts to be assemblied on ventilation, the air blast breeze fan to be used.
Though impeller shaft does not have the leaf dish to rear side, but because the suction water conservancy diversion supercharging outlet 7 of suction water conservancy diversion pressuring plate radially exports 9 by the preceding impeller cylindrical that then points to along impeller, during work, by the air-flow in the inboard air-flow path of suction water conservancy diversion pressuring plate inspiration impeller through bending and point to the suction water conservancy diversion supercharging outlet 7 of impeller cylindrical outlet and be directed flowing to impeller cylindrical outlet 9, be discharged from impeller again, air-flow can not overflow impeller to rear side from impeller shaft.
Because the leaf dish is not established in axial side behind the impeller, axial sides does not all have the leaf dish before and after the whole impeller, impels impeller both to alleviate weight, avoided the frictional loss and the friction noise of posterior lobe dish again, thereby the blower fan of this example assembling, efficient is higher, more can save the energy, noise is lower, more helps environmental protection.
This routine purposes is the same with example 1.
This example be provided with suction water conservancy diversion pressuring plate radially rear end be connected with the axial rear side negative pressure of impeller blade partitioning wall (being that impeller shaft is to rear wall), be in order to strengthen impeller blade intensity, to make blade wheel structure more firm.Because suction water conservancy diversion pressuring plate the place ahead is provided with unobstructed air-flow path, though suction water conservancy diversion pressuring plate radially rear end is connected with axial rear side negative pressure partitioning wall and stops that can not be flowed to the impeller cylindrical straight by the air-flow of its suction exports 9, but this air-flow can laterally be poured in the unobstructed air-flow path in the place ahead, flow to impeller cylindrical outlet 9 through unobstructed air-flow path again, the inboard air-flow path of whole impeller can not result in blockage.
This routine impeller weight is lighter, and frictional loss is littler, and noise is lower, and is more energy-efficient, more helps environmental protection.
This routine purposes is the same with example 2.
During work, the sideways suction water conservancy diversion of diaxon pressuring plate respectively from former and later two air inlet inspiration gas, is given processing by the rotary centrifugal force effect before and after the draught fan impeller, makes it to quicken supercharging.
This routine impeller flow is big, and the blast height adapts to big flow ventilator assembling and uses, and the ventilator that is assembled by its can replace big flow axis flow fan to use, and replaces big flow axis flow fan to use, and its volume can be much smaller, and its blast but is so great that many.
Claims (5)
1, centrifuge synchronous concurrent draught fan impeller, comprise impeller sleeve (1), impeller reel (2), impeller blade (3), the inboard air-flow path (4) of impeller that forms between the inboard impeller blade of impeller, it is characterized in that, be provided with suction water conservancy diversion pressuring plate (5) between the impeller blade, suction water conservancy diversion pressuring plate (5) along impeller radially, by then preceding, from outward appearance to inner essence tilt to place in the inboard air-flow path of impeller (4), suction water conservancy diversion pressuring plate (5) front end is provided with suction water conservancy diversion supercharging import (6), suction water conservancy diversion supercharging import (6) places the impeller axial sides outside, suction water conservancy diversion pressuring plate (5) rear end is provided with suction water conservancy diversion supercharging outlet (7), suction water conservancy diversion supercharging outlet (7) places the inboard air-flow path (5) of impeller inboard, and suction water conservancy diversion pressuring plate (5) longitudinal edge vertically connects the side with impeller blade (3).
2, centrifuge synchronous concurrent draught fan impeller according to claim 1, it is characterized in that, suction water conservancy diversion pressuring plate (5) is located at impeller blade the place ahead, its vertical posterior edges connects with the impeller blade front side surface, and suction water conservancy diversion pressuring plate (5) vertically forward edge is provided with unobstructed air-flow path (8) with between another adjacent impeller blade rear side.
3, centrifuge synchronous concurrent draught fan impeller according to claim 1 and 2 is characterized in that, suction water conservancy diversion pressuring plate (5) radial extremity becomes the bending structure form, suction water conservancy diversion supercharging outlet (7) along impeller radially by the preceding impeller outlet (9) that then points to.
4, centrifuge synchronous concurrent draught fan impeller according to claim 2 is characterized in that, suction water conservancy diversion pressuring plate (5) radial extremity connects with another axial side wall of impeller.
5, centrifuge synchronous concurrent draught fan impeller according to claim 1 and 2 is characterized in that, impeller is provided with the axial sides of suction water conservancy diversion supercharging import (6) and does not establish leaf blade disk (10).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100157248A CN101280791A (en) | 2008-04-23 | 2008-04-23 | Centrifuge synchronous concurrent draught fan impeller |
| CN 200810140212 CN101382150B (en) | 2008-04-23 | 2008-09-13 | Synchronous rear flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100157248A CN101280791A (en) | 2008-04-23 | 2008-04-23 | Centrifuge synchronous concurrent draught fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101280791A true CN101280791A (en) | 2008-10-08 |
Family
ID=40013413
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100157248A Pending CN101280791A (en) | 2008-04-23 | 2008-04-23 | Centrifuge synchronous concurrent draught fan impeller |
| CN 200810140212 Expired - Fee Related CN101382150B (en) | 2008-04-23 | 2008-09-13 | Synchronous rear flow fan |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810140212 Expired - Fee Related CN101382150B (en) | 2008-04-23 | 2008-09-13 | Synchronous rear flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN101280791A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418714A (en) * | 2011-12-20 | 2012-04-18 | 林钧浩 | Centrifugal fan capable of diversion, pressure increase and energy saving |
| CN102449402A (en) * | 2009-05-27 | 2012-05-09 | 松下电器产业株式会社 | Heating device |
| CN108685480A (en) * | 2017-04-11 | 2018-10-23 | 日立空调·家用电器株式会社 | Heating device |
| CN110159589A (en) * | 2019-07-05 | 2019-08-23 | 张银量 | Inclined type three-dimensional synchronizes fluid machinery |
| CN110594173A (en) * | 2019-09-23 | 2019-12-20 | 郑州市锦华机械制造有限公司 | Air heater |
| CN111963450A (en) * | 2020-08-27 | 2020-11-20 | 浙江东音科技有限公司 | Intelligent automatic cooling submersible pump |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010028546A1 (en) * | 2008-09-13 | 2010-03-18 | Lin Junhao | Synchronous backflow fan |
| CN101566164A (en) * | 2009-05-15 | 2009-10-28 | 林钧浩 | Multifunctional synchronous after flow ventilating compressor |
| CN104564810A (en) * | 2015-01-28 | 2015-04-29 | 王春 | Front fan for motor |
| CN107023431B (en) * | 2017-06-16 | 2018-11-06 | 泉州市欣泓润工业设计有限公司 | A kind of water generating impeller |
| CN109882444B (en) * | 2019-02-25 | 2020-08-28 | 江苏大学 | Mixed flow pump impeller with stepped rectifying device in flow channel |
| CN112845481B (en) * | 2021-01-07 | 2022-03-25 | 山东风顺制冷科技集团有限公司 | Bidirectional wind direction adjusting equipment of environmental protection equipment |
-
2008
- 2008-04-23 CN CNA2008100157248A patent/CN101280791A/en active Pending
- 2008-09-13 CN CN 200810140212 patent/CN101382150B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102449402A (en) * | 2009-05-27 | 2012-05-09 | 松下电器产业株式会社 | Heating device |
| CN102449402B (en) * | 2009-05-27 | 2014-06-25 | 松下电器产业株式会社 | Heating device |
| CN102418714A (en) * | 2011-12-20 | 2012-04-18 | 林钧浩 | Centrifugal fan capable of diversion, pressure increase and energy saving |
| CN102418714B (en) * | 2011-12-20 | 2014-06-11 | 林钧浩 | Centrifugal fan capable of diversion, pressure increase and energy saving |
| CN108685480A (en) * | 2017-04-11 | 2018-10-23 | 日立空调·家用电器株式会社 | Heating device |
| CN110159589A (en) * | 2019-07-05 | 2019-08-23 | 张银量 | Inclined type three-dimensional synchronizes fluid machinery |
| CN110159589B (en) * | 2019-07-05 | 2024-03-22 | 张银量 | Inclined three-dimensional synchronous fluid machine |
| CN110594173A (en) * | 2019-09-23 | 2019-12-20 | 郑州市锦华机械制造有限公司 | Air heater |
| CN111963450A (en) * | 2020-08-27 | 2020-11-20 | 浙江东音科技有限公司 | Intelligent automatic cooling submersible pump |
| CN111963450B (en) * | 2020-08-27 | 2021-09-17 | 浙江东音科技有限公司 | Intelligent automatic cooling submersible pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101382150A (en) | 2009-03-11 |
| CN101382150B (en) | 2013-05-22 |
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