CN120520806B - Low-noise gas conveying equipment - Google Patents
Low-noise gas conveying equipmentInfo
- Publication number
- CN120520806B CN120520806B CN202510983281.5A CN202510983281A CN120520806B CN 120520806 B CN120520806 B CN 120520806B CN 202510983281 A CN202510983281 A CN 202510983281A CN 120520806 B CN120520806 B CN 120520806B
- Authority
- CN
- China
- Prior art keywords
- fan
- assembly
- motor
- volute
- heat dissipation
- 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.)
- Active
Links
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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本发明涉及一种低噪音气体输送设备，涉及通风技术领域，包括底架总成和机箱总成，以及依次连通的橡胶接头、空滤总成、高速离心泵总成和出风管总成，高速离心泵总成包括散热器、叶轮、蜗壳、集流器和导叶装置，叶轮和散热器分别安装在电机的两个输出端，蜗壳安装在电机侧边，集流器安装在蜗壳侧边，叶轮可转动的安装在集流器内，蜗壳与集流器连通，出风管总成连通蜗壳，导叶装置安装在集流器的远离蜗壳一侧，散热器包括散热壳、散热动力风扇、传动风扇和辅助风扇，散热壳安装在电机侧边，散热动力风扇安装在电机输出端，传动风扇和辅助风扇通过传动轴可转动的安装在散热壳上，传动风扇靠近散热动力风扇，辅助风扇位于散热壳外，运行噪音低。
The present invention relates to a low-noise gas conveying device, which relates to the field of ventilation technology. The device comprises a chassis assembly and a chassis assembly, as well as a rubber joint, an air filter assembly, a high-speed centrifugal pump assembly and an air outlet pipe assembly which are connected in sequence. The high-speed centrifugal pump assembly comprises a radiator, an impeller, a volute, a collector and a guide vane device. The impeller and the radiator are respectively mounted on two output ends of a motor, the volute is mounted on the side of the motor, the collector is mounted on the side of the volute, the impeller is rotatably mounted in the collector, the volute is connected to the collector, the air outlet pipe assembly is connected to the volute, the guide vane device is mounted on a side of the collector away from the volute, the radiator comprises a heat dissipation shell, a heat dissipation power fan, a transmission fan and an auxiliary fan. The heat dissipation shell is mounted on the side of the motor, the heat dissipation power fan is mounted on the output end of the motor, the transmission fan and the auxiliary fan are rotatably mounted on the heat dissipation shell through a transmission shaft, the transmission fan is close to the heat dissipation power fan, and the auxiliary fan is located outside the heat dissipation shell, and the operating noise is low.
Description
Technical Field
The invention relates to the technical field of ventilation, in particular to low-noise gas conveying equipment.
Background
In life and the production process, ventilation equipment is widely used, sometimes produces suction effect through the negative pressure and realizes ventilation, sometimes blows out through the malleation and realize ventilation, in order to increase ventilation effect, motor and impeller rotational speed are done higher and higher, when especially full load is operated, the noise is great when motor and impeller high-speed operation, and the noise is sharp-pointed, in order to dispel the heat for the motor, motor output shaft is in the other end that keeps away from the impeller general direct mount radiator fan, this kind of structure makes radiator fan's rotational speed also high, but radiator fan is close to the external circumstances and makes sharp-pointed sound outer transmission easily, often the noise is great.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the invention provides low-noise gas conveying equipment, which has low running noise.
The technical scheme adopted by the invention is as follows:
The utility model provides a low noise gas delivery equipment, includes chassis assembly and quick-witted case assembly to and rubber joint, empty filter assembly, high-speed centrifugal pump assembly and the tuber pipe assembly that feeds through in proper order, empty filter assembly and high-speed centrifugal pump assembly between through the soft connection of rubber tube, high-speed centrifugal pump assembly and tuber pipe assembly between through the soft connection of rubber tube, rubber joint and tuber pipe assembly all install on quick-witted case assembly and extend outside the quick-witted case assembly, high-speed centrifugal pump assembly includes radiator, motor, impeller, spiral case, mass flow device and stator device, the motor has two output, impeller and radiator are installed respectively at two output of motor, the mass flow device is installed at the spiral case side, impeller rotatable install in the mass flow device, spiral case and mass flow device intercommunication, the tuber pipe assembly intercommunication, stator device is installed in keeping away from spiral case one side of radiator, radiator fan, drive fan and auxiliary fan, the motor side is installed at the motor, the motor side is equipped with radiator fan, spiral case, heat-fan and auxiliary fan, the drive fan is equipped with the fan is close to the fan and is close to the fan is close to the radiator-fan, and the auxiliary fan is located the fan is close to the fan and is close to the air vent on the motor side, and is located the fan is close to the drive and is located the auxiliary fan and is connected to the radiator.
Preferably, the radiator is provided with a vent plug support bracket, the sound insulation vent plug is arranged on the radiator through the vent plug support bracket, a vent plug installation cavity is arranged on the vent plug support bracket, a vent grid is arranged at the bottom of the vent plug installation cavity, the sound insulation vent plug is arranged in the vent plug installation cavity, a plurality of sound wave blocking sheets are arranged on the periphery of the sound insulation vent plug, the sound wave blocking sheets are arranged in a staggered mode, and the projection of the sound wave blocking sheets on the rotation axis direction of the radiator fan completely covers the cross section of the vent plug installation cavity.
Preferably, the lower side of the underframe assembly is provided with a forklift hole site.
Preferably, a wind scooper is arranged on one side of the chassis assembly, which is close to the radiator.
Preferably, the empty assembly of straining includes seamless pipe, staving and empty lid of straining, the seamless pipe is installed on the staving, empty lid of straining is installed on the staving through a plurality of swing bolts, install the filter core in the staving, staving intercommunication current collector, rubber joint installs on the seamless pipe.
Preferably, the guide vane device has a plurality of guide vanes which are uniformly arranged.
Preferably, the output end of the motor is mounted on the guide vane device through a bearing.
Preferably, the distance between the heat dissipating power fan and the driving fan is 1 mm to 5mm.
Preferably, the transmission fan and the auxiliary fan are rotatably mounted on the heat dissipation shell through a transmission shaft, and the transmission shaft is rotatably mounted on the heat dissipation shell through a bearing.
The beneficial effects of the invention are as follows:
the rubber joint and the air outlet pipe assembly are arranged on the chassis assembly and extend to the outside of the chassis assembly, the chassis assembly covers the air filter assembly, the high-speed centrifugal pump assembly and the air outlet pipe assembly to play roles of protection, sound insulation and heat insulation, the chassis assembly belongs to a covering piece, the appearance flatness of the air conveying equipment is higher, the rubber joint is used for buffering vibration of an external pipeline caused by air flow when air enters, the air outlet pipe assembly is used for outputting air, the high-speed centrifugal pump assembly comprises a radiator, a motor, an impeller, a volute, a current collector and a guide vane device, the motor is provided with two output ends, the impeller and the radiator are respectively arranged at the two output ends of the motor and are uniformly driven by the motor, the volute is arranged at the side of the motor, the current collector is rotatably arranged in the current collector to realize air pressurization, the volute is communicated with the current collector, the pressurized air in the current collector flows out to the volute, the air outlet pipe assembly is communicated with the volute, the pressurized air flows out of the air outlet pipe assembly, the guide vane device is arranged at one side of the current collector, which is far away from the volute, and the air inlet air flow is carded, and the air flow impact is reduced.
The radiator comprises a radiating shell, a radiating power fan, a transmission fan and an auxiliary fan, wherein the radiating shell is arranged on the side of a motor, a first ventilation opening is formed in one side, close to the radiating shell, of the motor to enable cool air to enter, a second ventilation opening is formed in one side, close to the volute, of the motor to enable hot air to be discharged, the radiating power fan is arranged at the output end of the motor and is directly driven to rotate by the motor, the transmission fan and the auxiliary fan are rotatably arranged on the radiating shell, the transmission fan is connected with the auxiliary fan in a transmission mode, a sound insulation ventilation plug is arranged on the radiating shell, the transmission fan is close to the radiating power fan, the high-rotation-speed radiating power fan is enclosed in the radiating shell, noise is reduced, the auxiliary fan is located outside the radiating shell, the transmission fan is driven by airflow blown by the radiating power fan to rotate, the auxiliary fan is driven to rotate, and the auxiliary fan is close to the sound insulation ventilation plug to enable external air to be fed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic diagram of a high-speed centrifugal pump assembly.
Figure 3 is a schematic view of a sound insulating vent plug.
Figure 4 is a schematic view of a first view of a vent plug support bracket.
Figure 5 is a second view schematic illustration of a vent plug support bracket.
Fig. 6 is a schematic diagram of the overall structure of the present application.
Reference numerals illustrate:
1. A chassis assembly;
2. a rubber joint;
3. The device comprises an air filter assembly, a 31 seamless pipe, a 32 barrel body, a 33 air filter rear cover;
4. High speed centrifugal pump assembly 41, radiator 411, radiator shell 412, radiator power fan 413, transmission fan 414, auxiliary fan 415, transmission shaft 416, vent plug support bracket 4161, vent plug mounting cavity 4162, vent grille 42, motor 421, first vent 422, second vent 43, impeller 44, volute 45, current collector 46, guide vane device 47, sound insulation vent plug 471, sound wave blocking sheet;
5. And an air outlet pipe assembly.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
As shown in fig. 1-6, the embodiment provides a low noise gas conveying device, which comprises a chassis assembly 1 and a case assembly, and a rubber joint 2, an air filter assembly 3, a high speed centrifugal pump assembly 4 and an air outlet pipe assembly 5 which are sequentially communicated, wherein the air filter assembly 3 and the high speed centrifugal pump assembly 4 are in soft connection through a rubber pipe, the high speed centrifugal pump assembly 4 and the air outlet pipe assembly 5 are in soft connection through a rubber pipe, so as to isolate the vibration of the high speed centrifugal pump assembly 4, the vibration of the high speed centrifugal pump assembly 4 is prevented from being conducted to an external air pipe through the air filter assembly 3 and the air outlet pipe assembly 5, the rubber joint 2 and the air outlet pipe assembly 5 are both arranged on the case assembly and extend to the outside of the case assembly, the case assembly covers the air filter assembly 3, the high speed centrifugal pump assembly 4 and the air outlet pipe assembly 5, thereby playing the roles of protection, sound insulation and heat insulation, the appearance flatness of the gas conveying equipment is higher, the rubber joint 2 is used for buffering vibration of an external pipeline caused by gas flow when gas is introduced, the air outlet pipe assembly 5 is used for outputting gas, the high-speed centrifugal pump assembly 4 comprises a radiator 41, a motor 42, an impeller 43, a volute 44, a current collector 45 and a guide vane device 46, the motor 42 is provided with two output ends, the impeller 43 and the radiator 41 are respectively arranged at the two output ends of the motor 42 and are uniformly driven by the motor 42, the volute 44 is arranged at the side edge of the motor 42, the current collector 45 is arranged at the side edge of the volute 44, the impeller 43 is rotatably arranged in the current collector 45, under the rotating action of the impeller 43, the guide vane device 46 generates negative pressure, and then negative pressure is generated at the seamless pipe 31, so that the air extraction is realized, on the other hand, the rotation of the impeller 43 generates positive pressure in the volute 44, the gas pressurization is realized, the volute 44 is communicated with the current collector 45, pressurized gas in the collector 45 flows out to the volute 44, the air outlet pipe assembly 5 is communicated with the volute 44 through a rubber pipe, vibration and noise transmission are avoided, the pressurized gas flows out from the air outlet pipe assembly 5, the guide vane device 46 is arranged on one side, far away from the volute 44, of the collector 45, inlet air flow carding is carried out, and air flow impact is reduced.
The radiator 41 comprises a radiating shell 411, a radiating power fan 412, a transmission fan 413 and an auxiliary fan 414, wherein the radiating shell 411 is arranged on the side of the motor 42, a first ventilation opening 421 is formed in one side, close to the radiating shell 411, of the motor 42 to enable cool air to enter, a second ventilation opening 422 is formed in one side, close to the volute 44, of the motor 42 to enable hot air to be discharged, the radiating power fan 412 is arranged at the output end of the motor 42, the radiating power fan 412 is directly driven to rotate by the motor 42, the transmission fan 413 and the auxiliary fan 414 are rotatably arranged on the radiating shell 411, the transmission fan 413 is in transmission connection with the auxiliary fan 414, the radiating shell 411 is provided with a sound insulation ventilation plug 47, the transmission fan 413 is close to the radiating power fan 412, the radiating power fan 412 with high rotation speed is enclosed in the radiating shell 411, noise is reduced, the auxiliary fan 414 is located outside the radiating shell 411, the transmission fan 413 is driven by air blown by the radiating power fan 412 to enable rotation, the auxiliary fan 414 is driven to rotate, the auxiliary fan 414 is close to the radiating plug 47 to enable external air to be fed, the noise is low, and the radiating effect is good.
The radiator 411 is provided with the vent plug support bracket 416, the sound insulation vent plug 47 is arranged on the radiator 411 through the vent plug support bracket 416, the vent plug support bracket 416 is provided with the vent plug installation cavity 4161, the bottom of the vent plug installation cavity 4161 is provided with the vent grid 4162, the sound insulation vent plug 47 is arranged in the vent plug installation cavity 4161, the periphery of the sound insulation vent plug 47 is provided with a plurality of sound wave blocking pieces 471, each sound wave blocking piece 471 is arranged in a staggered manner, the projection of each sound wave blocking piece 471 on the rotating axis direction of the radiator 412 completely covers the cross section of the vent plug installation cavity 4161, and the cross section of the vent plug installation cavity 4161 refers to the cross section formed by a plane perpendicular to the rotating axis of the radiator 412, so that each sound wave blocking piece 471 can play a role of isolating noise, and cooling airflow cannot be blocked from entering the radiator 411.
Specifically, the lower side of the underframe assembly 1 is provided with a forklift hole site, so that the transportation is convenient to realize.
Specifically, a wind scooper is disposed on a side of the chassis assembly, which is close to the radiator 41, and the wind scooper is made of a filter screen, so that the cooling airflow is convenient to be intensively input, and the cooling airflow is used for filtering dust and blocking mosquitoes.
Specifically, the air filter assembly 3 includes a seamless tube 31, a tub body 32, and an air filter back cover 33, the seamless tube 31 is mounted on the tub body 32, the air filter back cover 33 is mounted on the tub body 32 through a plurality of movable joint bolts, a filter element is mounted in the tub body 32, the tub body 32 is communicated with a current collector 45, the rubber joint 2 is mounted on the seamless tube 31, the air filter back cover 33 is used for replacing the filter element, and gas entering from the seamless tube 31 is filtered by the filter element, then is conveyed to the current collector 45, and enters the high-speed centrifugal pump assembly 4 through the current collector 45.
Specifically, the guide vane device 46 has a plurality of guide vanes which are uniformly arranged, and performs air inlet air flow carding, so that air flow impact is reduced, and noise is reduced.
Specifically, the output end of the motor 42 is mounted on the guide vane device 46 through a bearing, and further supports the impeller 43 which rotates at a high speed.
Specifically, the distance between the heat dissipating power fan 412 and the driving fan 413 is 1mm to 5 mm, and efficient driving is achieved.
Specifically, the driving fan 413 and the auxiliary fan 414 are rotatably mounted on the heat dissipation shell 411 through the driving shaft 415, the driving shaft 415 is rotatably mounted on the heat dissipation shell 411 through a bearing, so that the rotation of the driving fan 413 is transferred to the auxiliary fan 414, the diameter of the auxiliary fan 414 is larger than that of the heat dissipation power fan 412 and the driving fan 413, and the rotation speed of the auxiliary fan 414 is greatly reduced relative to that of the motor 42, so that noise is reduced on the premise of providing sufficient heat dissipation airflow.
While the basic principles and main features of the invention and advantages of the invention have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described in the foregoing description merely illustrate the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510983281.5A CN120520806B (en) | 2025-07-17 | 2025-07-17 | Low-noise gas conveying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510983281.5A CN120520806B (en) | 2025-07-17 | 2025-07-17 | Low-noise gas conveying equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN120520806A CN120520806A (en) | 2025-08-22 |
| CN120520806B true CN120520806B (en) | 2025-10-17 |
Family
ID=96749824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510983281.5A Active CN120520806B (en) | 2025-07-17 | 2025-07-17 | Low-noise gas conveying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120520806B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN218439895U (en) * | 2021-08-24 | 2023-02-03 | 鑫磊压缩机股份有限公司 | Volute and impeller device capable of preventing blade tip leakage and centrifugal blower |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994703A (en) * | 2009-08-18 | 2011-03-30 | 上海熊猫机械(集团)有限公司 | High temperature hot water pump |
| CN202612151U (en) * | 2012-06-08 | 2012-12-19 | 株洲联诚集团有限责任公司 | Cabinet fan of auxiliary transformer for plateau electric locomotive |
| CN207064621U (en) * | 2017-07-06 | 2018-03-02 | 安徽星瑞齿轮传动有限公司 | A kind of low-noise automobile decelerator |
| CN210396890U (en) * | 2019-07-11 | 2020-04-24 | 宁波吉利罗佑发动机零部件有限公司 | Turbocharger with noise reduction and air leakage channel and vehicle |
| KR20240170558A (en) * | 2022-06-01 | 2024-12-03 | 광동 웰링 모터 매뉴팩처링 컴퍼니, 리미티드 | Blowers and scrubbers |
-
2025
- 2025-07-17 CN CN202510983281.5A patent/CN120520806B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN218439895U (en) * | 2021-08-24 | 2023-02-03 | 鑫磊压缩机股份有限公司 | Volute and impeller device capable of preventing blade tip leakage and centrifugal blower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN120520806A (en) | 2025-08-22 |
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