Company News
Industry News
Knowledge
Contacts: Maggie Yu
Tel: +86-0755-28035808
Fax: +86-0755-28035808
Phone/Wechat: 0086-18038069461
E-mail: yyh88@snowfan.com.cn
Time：2022-02-27Views：0
Waterproof fan, due to its unlimited width in theory, large air volume, small size, etc., has been widely used in some departments. Although many scholars have studied the horizontal waterproof fan, there are still some basic issues that need to be further discussed. For example: according to what the gas flows through the cascade twice, how the vortex that controls the flow field in the impeller is formed, and what the gas flow direction depends on (that is, how to determine the inlet and outlet) and so on. To this end, experimental research was conducted. In order to facilitate the observation, photography and static pressure measurement of the flow field, the experiment was simulated with water.
As for the waterproof fan, if the design is improper, it may produce a backwind phenomenon, that is, the inlet and outlet are interchanged. For this reason, a simulation test study was carried out in the water tank.
Waterproof fan shell, the cross flow fan is generally composed of a curve GF (rear wall) with a gradually increasing gap with the impeller, a circular arc or other shape of the vortex tongue BD and the upper boundary DE. The length of the volute tongue and the angle γ between it and the upper boundary DE of the air outlet have a greater impact on the performance of the fan.
(1) The asymmetric outer boundary (including the asymmetry with the impeller gap) is the basic condition for the waterproof fan to make the fluid flow stably in a certain direction.
(2) When the impeller drives the fluid to rotate, if there is only a straight line boundary in the flow field, a vortex is formed at the inner edge of the impeller near this boundary, downstream of the small gap in the direction of rotation of the impeller. The rotation direction of the vortex of the waterproof fan is the same as that of the impeller, and the strength of the vortex mainly depends on the rotation speed and boundary conditions of the impeller. The flow field inside and outside the impeller is mainly controlled by this vortex.
(3) If there are multiple boundaries, the flow field depends on the combined influence of each boundary. The vortex appears near the boundary where the flow resistance difference is extremely large, and there is only one vortex.
(4) For the waterproof fan, in order to make it work normally without reversing the wind, compared with other boundaries, there should be a larger difference in flow resistance at the vortex tongue.
What is the root cause of the cooling fan failure?
2021-11-23the speed of the cooling fan?
2021-12-13Why is the 3007 silent fan difficult to achieve, and is there any good way?
2022-02-18What is the reason why the cooling fan in the air purifier does not rotate?
2021-12-17Why are fans mostly square, can they be made into rectangles?
2022-01-07Is it sufficient to increase the speed of the high-volume cooling fan?
2021-09-13Understand the installation essentials of DC fans
2021-12-22What is the difference between a hydraulic cooling fan and an oil-contained cooling fan?
2021-10-08Factors for the rapid rise of a large number of domestic excellent DC fan brands
2022-03-14Can the speed of AC fan be adjusted?
2022-01-27Estimated service life of cooling fan hydraulic bearings and double ball bearings
2021-12-24Why does the cooling fan manufacturer have no inventory?
2021-08-10Characteristics of DC Blowers
2022-05-13The main structure and working principle of electric fan
2022-04-21What information does the manufacturer need to make a cooling fan sample?
2021-09-14What are the characteristics of the charging pile cabinet fan?
2021-08-18Tell you what to pay attention to when choosing a cooling fan for communication equipment
2022-03-04The air volume of the cooling fan is related to the air pressure of the cooling fan
2022-01-24Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-12-21Share DC fan speed with temperature control function
2022-03-03How can the Raspberry Pi 3rd generation DC fan 3007 be quieter?
2021-08-26What are the requirements for cooling fans for Bitcoin mining machines?
2021-08-12How to choose a more reasonable DC axial fan
2021-08-19New product development, how to quickly choose a suitable cooling fan
2022-02-18Can the inventory of the cooling fan manufacturer be purchased?
2021-08-09How to choose the current and voltage sensor power supply?
2022-04-13What are the advantages and characteristics of the DC fan produced?
2022-03-04Smart toilet cooling fan cleaning tips
2022-04-18Will the positive and negative poles of the DC cooling fan burn if connected reversely?
2022-04-20What is the reason for the slow start of the electric fan
2022-04-27Does the unobstructed air outlet affect the cooling fan?
2021-09-02Briefly describe the characteristics of the DC blower
2022-04-07cooling fan manufacturers have to order several samples?
2021-12-10DC fan permanent magnet motor has excellent controllability advantages
2022-03-09Mergers and acquisitions integration and capital operation among large DC fan manufacturers are beco
2022-04-14The three-phase star connection of the DC cooling fan has a variable frequency motor control circuit
2022-03-17Will the 12V cooling fan be damaged if the voltage is lower than the rated voltage?
2021-11-16Factors for the rapid rise of a large number of domestic excellent DC fan brands
2022-03-09What is the difference between a DC cooling fan and an AC cooling fan?
2021-10-08What is the reason why the cooling fan in the air purifier does not rotate?
2021-09-22Explain the components of the cooling fan
2022-05-17What is the difference between a 3-wire and 4-wire CPU cooling fan for a computer?
2021-09-01What methods can improve the quality of cooling fans?
2022-01-15How to solve the noise problem of cooling fan
2022-03-17What are the factors related to the life of the cooling fan?
2021-10-14What is the method of controlling and adjusting the speed of the cooling fan?
2021-10-15How DC Fans Work
2022-04-06Power saving tips for electric fans
2022-05-06Reasons and solutions for the electric fan not turning
2022-04-06DC fan suppliers discuss with you the main factors of fan cooling
2022-03-10Will the power cord of the cooling fan burn if it is connected upside down?
2021-08-09About the air volume and pressure of the cooling fan in front of you
2021-08-06What is the reason why the cooling fan in the air purifier does not rotate?
2021-09-23Did you know that the air is continuously recirculated in the unit of the DC fan coil unit?
2022-03-18Do you know how the fan works?
2022-05-11What is the gap between domestic cooling fan manufacturers and foreign manufacturers?
2021-09-16What types of cooling fans are there?
2022-03-24Is wireless charging slower than wired charging?
2022-02-14Why do cooling fan manufacturers have to order several samples?
2022-04-19What are the purchasing skills of electric fans?
2022-05-09What is the reason for the noise of 4010 DC fan?
2022-01-20Electric fan: how high temperature and physiology interact
2021-11-24How to solve the noise problem of cooling fan
2022-03-16choose a cooling fan to be more silent?
2021-12-13What should be paid attention to for the cooling fan of the new energy charging pile?
2021-08-17What are the tips for cleaning the dust of the cooling fan
2021-10-28Analysis of the reasons for the cooling fan rotation stall
2022-03-02What are the factors related to the life of the cooling fan?
2021-10-18Disassemble the components of the cooling fan
2022-04-22Cooling fan manufacturer Chengda shares with you the cleaning skills of fans
2022-03-07Is it sufficient to increase the speed of the high-volume cooling fan?
2022-04-20Teach you how to use a DC fan
2022-05-12Do you know how the fan works?
2022-04-26The price of cooling fan manufacturers is different, what is the poor performance?
2022-01-17Will the current sensor be magnetized?
2022-04-13What are the 4 wires of the computer CPU cooling fan?
2021-09-01Reasons and repair methods for household floor fans not rotating
2022-03-21increase the speed of the high-volume cooling fan?
2021-12-09Why does the cooling fan manufacturer have no inventory?
2022-01-18What is the reason why the cooling fan in the air purifier does not rotate?
2021-09-24How does the installation method of the cooling fan affect the service life?
2022-01-26Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-12-17DC fan suppliers discuss with you the main factors of fan cooling
2022-03-07Why are oil-contained cooling fans prone to noise?
2021-09-28Analysis of DC fan and its working principle
2021-10-20Why are oil-contained cooling fans prone to noise?
2021-12-16What are the technical treatments for the internal structure of the waterproof fan?
2021-11-08What is the warranty period for the cooling fan?
2021-08-03What are the advantages of imported cooling fans?
2021-09-09Classification and application of fans in our lives
2022-04-11Cooling fan function introduction
2022-03-28Teach you how to use a DC fan
2022-04-07Which is better, AC fan or DC fan?
2022-01-05Analysis of why the waterproof fan has a backwind phenomenon?
2022-02-27Features of DC blower
2021-12-14What is the gap between domestic cooling fan manufacturers and foreign manufacturers?
2021-09-29Micro Fan - What kind of equipment are cooling fans mainly used in?
2022-03-15Do you know how the fan works?
2022-03-25What is an electric fan made of?
2022-07-18What is the structure of the fan
2022-07-18How to remove the cooling fan on a desktop computer?
2022-03-23Teach you to distinguish the types of cooling fans
2022-04-15The main application areas of DC cooling fans
2022-04-25How to choose a manufacturer for the cooling fan of the mining machine case to reduce the cost
2021-08-13Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-09-24What information does the manufacturer need to make a cooling fan sample?
2021-12-20What are the processes for the internal structure of the waterproof fan?
2022-02-24Where are the current weaknesses of domestic cooling fan manufacturers?
2021-08-20Why are small fans difficult for manufacturers of cooling fans to design temperature control and spe
2021-08-27Can the DC cooling fan vibrate with high intensity?
2021-09-28Advantages and structural defects of hydraulic fans
2022-02-19Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-09-23The core difference between 4010 cooling fan and 4020 cooling fan
2021-08-05Monitoring and protection knowledge of DC fans
2022-05-13How to realize the silent cooling fan?
2021-08-02Cooling fan manufacturers tell you the source and solution of noise
2022-03-08How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2022-02-15Can the tolerance of the DC cooling fan be reduced?
2021-09-26How do manufacturers do dust-proof cooling fans?
2022-02-14electric fan
2022-04-21The main application areas of DC cooling fans
2022-05-11How to use electric fan for baby
2022-05-09Must-see for fan
2021-11-25What specifications are good for the ventilation fan of the air purifier?
2021-08-24Are more computer fans better?
2022-03-29What are the voltage specifications of the DC cooling fan
2021-11-02What is the reason why the cooling fan in the air purifier does not rotate?
2021-12-21Analysis on whether the air outlet is not unblocked has an effect on the cooling fan?
2021-10-14The main points of using the air purifier cooling fan
2022-04-18The main components of the electric fan
2022-07-19What is the main reason for the quality of the declassified cooling fan?
2021-08-04Disassemble the components of the cooling fan
2022-05-10Talk about the reason why the cooling fan does not turn
2021-11-03What effect does jitter have on performance when the cooling fan is running?
2021-12-20How does the DC blower work?
2022-01-14Preventing Excessive Vibration of Industrial Equipment Cooling Fans and Vibration Reduction Scheme
2022-05-18How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2021-12-28Essential tips for life: how to use the cooling fan correctly
2022-07-15What factors need to be considered for the reliability of the cooling fan?
2021-12-07Can waterproof fans work at low temperatures?
2021-11-01Cooling fan manufacturer Chengda shares with you the cleaning skills of fans
2022-03-10Cooling Fan - Structure
2022-03-29What are the processes for the internal structure of the waterproof fan?
2021-11-18How are the cooling fan manufacturers under the new crown epidemic in 2021?
2021-08-03Why is the radiator fan that is exhausted to dissipate heat more easily than the blower
2021-09-16What are the correct steps to install a DC fan?
2021-11-05What is the root cause of the cooling fan failure?
2021-11-19Do you know what are the commonly used bearings for cooling fans?
2022-03-14About the cause and treatment of DC fan noise
2021-11-19What is the difference between a DC cooling fan and an AC cooling fan?
2021-09-06Do you know what are the commonly used bearings for cooling fans?
2022-03-09What is the difference between a heatsink and a fan on a computer?
2022-03-23Analysis on whether the cooling fan can be waterproof after adding lubricating oil?
2021-10-13What is the difference between ball bearings and oil-impregnated bearings for cooling fans?
2021-11-15Can the DC fan speed be adjusted?
2021-08-25Will the positive and negative poles of the DC cooling fan burn if connected reversely?
2021-09-13What are the advantages of DC direct floating hot fans?
2022-01-10Why are most of the current cameras with infrared function
2021-09-10How much high temperature can the cooling fan resist?
2021-11-23Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-09-22About the cause and treatment of DC fan noise
2021-11-23How to choose a cooling fan to be more silent?
2021-10-15How to use and maintain electric fans
2022-05-06What are the specifications of the silent fan Jingyangda?
2021-12-06What are the fans used for heat dissipation in electric vehicle charging piles?
2021-08-17Does the cooling fan work at low temperature have any effect?
2021-08-13Why is the 4010DC cooling fan so cheap?
2021-08-24Application field of DC fan
2021-11-05What are the requirements for non-standard samples of axial flow cooling fan manufacturers?
2021-08-27How dustproof and reliable the cooling fan is
2022-01-22What does high frequency microwave PCB circuit board exposure do?
2021-09-14What determines the price of a DC fan
2021-10-28What is the difference between a hydraulic cooling fan and an oil-contained cooling fan?
2021-09-06Repair of electric fan not rotating
2022-04-02Troubleshooting method for notebook CPU cooling fan
2021-10-25The cooling fan is used to force the air supply to the electronic radiator through the wind speed
2022-03-18Analysis of the influence of the installation method of the cooling fan on the life?
2021-12-01How do manufacturers do dust-proof cooling fans?
2022-02-22Analysis on whether the air outlet is not unblocked has an effect on the cooling fan?
2021-10-12How long is the life of the DC fan with high air volume?
2022-02-28Is it possible to install the computer cooling fan backwards?
2021-11-09Learn about monitoring and protection of DC fans
2022-04-08Can the DC cooling fan vibrate with high intensity?
2021-12-16What effect does jitter have on performance when the cooling fan is running?
2022-01-24The correct way to open the DC fan accessories
2021-12-24Why do cooling fan manufacturers want to get an air volume tester
2021-08-20Talk about the reason why the cooling fan does not turn
2021-10-21Four details to pay attention to when using a DC blower
2022-05-19Why is it difficult for manufacturers of small fans to design temperature control and speed regulati
2021-08-27How do manufacturers do dust-proof cooling fans?
2021-08-1110MM thick cooling fan, what is a strange phenomenon in the industry
2022-01-19What are the processes for the internal structure of the waterproof fan?
2021-11-23Axial fans and centrifugal fans
2022-04-08Why do ultra-thin 2006 cooling fans often have noise problems?
2021-10-11What is the difference between a DC cooling fan and an AC cooling fan?
2021-09-07A comprehensive introduction to DC cooling fans
2022-04-25The working principle of silicone oil fan
2021-11-26The heat dissipation characteristics of axial fans
2021-08-18Why do cooling fan manufacturers have to order several samples?
2021-09-09What are the characteristics of lightweight DC fans for drones?
2021-12-06How much is the power of a household fan
2022-04-01Discussion on whether the computer power fan is muted
2021-10-25The cooling fan is used to force the radiator through the wind speed
2022-03-16Noise formation and treatment of cooling fan?
2022-05-20What is the effect of the waterproof fan?
2021-11-01What does the life span of the cooling fan have to do with?
2021-08-05Can the cooling fan be silent?
2021-12-01DC cooling fan
2022-05-17Why is there a quantity requirement for the cooling fan?
2021-12-14How to increase the air volume/wind/pressure of the cooling fan?
2022-02-18What is the quality of the fans used in the LED lighting industry?
2021-11-09What common questions should be paid attention to during the application of cooling fans?
2022-01-17Different types of cooling fans
2022-05-16What is the working principle of the DC fan coil unit?
2022-03-15What is the specific meaning of the air volume parameters of the cooling fan?
2021-10-11The structure of the electric fan
2022-07-19How to deal with the noise of the micro cooling fan
2021-12-25Introduction and Application of Photodiode
2021-09-10Can the speed of the micro cooling fan be adjusted?
2022-01-13How to choose a silent fan?
2021-08-16Why is the cooling fan squirting oil?
2021-10-18Can waterproof fans operate at low temperatures?
2021-10-20How to replace a laptop cooling fan
2022-03-28the advantages of imported cooling fans?
2021-12-10Can the speed of the micro cooling fan be adjusted?
2022-01-08How about the waterproof function of the cooling fan?
2022-04-12The structure of the electric fan
2022-03-22How to use only two cooling fans with three lines?
2021-09-18Will the 12V cooling fan be damaged if the voltage is lower than the rated voltage?
2021-11-11How electric fans work
2022-03-22Analysis of the source of DC fan noise
2021-11-16It may be the driving force behind the noise of the cooling fan!
2021-08-04What are the advantages of imported cooling fans?
2022-04-19What effect does jitter have on performance when the cooling fan is running?
2021-09-14What should I do if the computer fan is loud
2022-03-25iring shall be installed by professionals
2021-12-23Interpretation of the heat transfer method of low-noise DC fans
2022-03-03Electric fan: distinguish between dry heat and damp heat
2021-11-24Safe operation and long service life is a major feature of DC blower products
2022-04-11Axial fans and centrifugal fans
2022-05-16Advantages and Performance of DC Cooling Fans
2022-04-15Why does the cooling fan manufacturer require a minimum order quantity, isn't it a standard product?
2022-02-16How DC Fans Work
2022-05-12the DC cooling fan burn if connected
2021-12-09How long can the manufacturer of 4010 cooling fan guarantee?
2021-12-27How to fix the slow start of the electric fan
2022-04-27How do manufacturers do dust-proof cooling fans?
2021-12-28How is DC fan better than AC fan?
2022-01-06DC fan permanent magnet motor has excellent controllability advantages
2022-03-11Mainly the fan with oil-containing structure.
2022-03-02Heat waves will change the way of life in the future
2021-11-25Does the cooling fan work at low temperatures have an impact?
2021-10-19Why is the stock 4010 fan so cheap?
2021-08-30What information does the manufacturer need to make a cooling fan sample?
2022-01-25The parameters of the cooling fan of the Antminer are revealed, and the price is unbelievably low
2021-12-07The development trend of cooling fan
2022-04-11How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2022-02-23Advantages and structural defects of hydraulic fans
2021-12-27What is the difference between a hydraulic cooling fan and an oil-contained cooling fan?
2021-09-07Ubiquitous computer cooling fan
2022-04-14Small, tiny, ultra-thin cooling fan the size of a fingertip
2022-04-12What is the gap between domestic cooling fan manufacturers and foreign manufacturers?
2021-09-15What are the requirements for the cooling fan of the charging pile?
2021-09-17How long is the life of 4010 DC fan with high air volume?
2021-08-23Cooling fan manufacturers tell you the source and solution of noise
2022-03-11Application of Photodiode
2021-12-08What are the factors related to the life of the cooling fan?
2021-10-13Can the cooling fan pass the salt spray test?
2021-08-02The price of cooling fan manufacturers is different, what is the poor performance?
2021-08-10hou much do you know about the working principle of fan cooling
2021-12-24Why is there a quantity requirement for the cooling fan?
2021-10-26What fields are DC cooling fans mainly used in
2022-04-26the current cameras with infrared function
2021-12-09About the waterproof design of the cooling fan of the charging pile cabinet?
2021-08-16Can the speed of the DC fan be adjusted?
2021-11-02What is the air volume unit conversion for DC cooling fans?
2021-12-03Where are the cooling fan manufacturers mainly concentrated
2021-09-29What is the cause of the tripping of the cooling fan of medical equipment?
2022-05-18Does the cooling fan work at low temperatures have an impact?
2021-10-21Why is the fan not turning?
2022-04-02Why does the ultra-thin cooling fan 3007 often have noise problems?
2021-09-26Fan manufacturers
2022-04-22How is the cooling fan designed
2021-12-25Analysis of the source of DC fan noise
2021-11-10Silicon oil fan clutch structure composition
2021-11-26Features of DC blower
2021-10-26Take you to see what is a DC fan
2022-01-17Is the PWM function of the DC cooling fan design quieter?
2021-08-25What is the relationship between the power of the DC axial fan and the air volume?
2021-12-02What is the difference between ball bearings and oil-impregnated bearings for cooling fans?
2021-11-08Can 4010DC fans be made waterproof?
2021-08-23What is the difference between a DC fan and an AC fan?
2022-03-01Which type of cooling fan is prone to noise?
2021-11-10What are the processes for the internal structure of the waterproof fan?
2022-01-04What are the processes for the internal structure of the waterproof fan?
2021-11-11A comprehensive introduction to DC cooling fans
2022-05-10Common faults of cooling fans and their solutions
2022-02-28Which frameless cooling fan or framed cooling fan has the largest air volume?
2021-08-06Can the cooling fan be dustproof?
2021-10-19Design steps of cooling fan
2022-03-01What is the effect of the waterproof fan?
2021-11-03Reasons and maintenance methods of electric fans not rotating
2022-04-01Guidelines For The Use Of Axial Fan Blades
2021-04-28How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2021-08-11The speed of the cooling fan
2021-12-22Why is the cooling fan developing so fast in China?
2021-08-30What are the processes for the internal structure of the waterproof fan?
2021-11-18Analysis of the failure and cause analysis of the cooling fan
2021-10-13What are the protection requirements for the cooling fan of the charging pile?
2021-08-19Which cooling fan is better?
2022-03-24How to solve the noise of the cooling fan of the mining machine chassis?
2021-08-12How to choose a cooling fan to be more silent?
2021-09-02Where are the cooling fan manufacturers mainly concentrated
2021-09-15
Link: Rubber 3D print
Tel: +86-0755-28035808
Fax: +86-0755-28035808
Phone/Wechat: 0086-18038069461
E-mail: yyh88@snowfan.com.cn
Address: No.10 lane 2 baigongao industrial area, xikeng new village, longhua district , Shenzhen city, GuangDong ,China.
About Us
Products
Application
Support
News
Contact
中
