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.
How to use and maintain electric fans
2022-05-06What is the air volume unit conversion for DC cooling fans?
2021-12-03What is the difference between a DC cooling fan and an AC cooling fan?
2021-10-08Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-09-24Micro Fan - What kind of equipment are cooling fans mainly used in?
2022-03-15It may be the driving force behind the noise of the cooling fan!
2021-08-04A comprehensive introduction to DC cooling fans
2022-05-10How do manufacturers do dust-proof cooling fans?
2021-08-11Analysis of the influence of the installation method of the cooling fan on the life?
2021-12-01What is the gap between domestic cooling fan manufacturers and foreign manufacturers?
2021-09-15Monitoring and protection knowledge of DC fans
2022-05-13Cooling fan manufacturers tell you the source and solution of noise
2022-03-08Mainly the fan with oil-containing structure.
2022-03-02How can the Raspberry Pi 3rd generation DC fan 3007 be quieter?
2021-08-26How to solve the noise problem of cooling fan
2022-03-17What is the reason why the cooling fan in the air purifier does not rotate?
2021-12-17Cooling fan function introduction
2022-03-28Cooling Fan - Structure
2022-03-29Is the PWM function of the DC cooling fan design quieter?
2021-08-25Does the unobstructed air outlet affect the cooling fan?
2021-09-02What are the correct steps to install a DC fan?
2021-11-05How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2022-02-15What are the 4 wires of the computer CPU cooling fan?
2021-09-01How to replace a laptop cooling fan
2022-03-28Do you know how the fan works?
2022-04-26Cooling fan manufacturer Chengda shares with you the cleaning skills of fans
2022-03-07What are the factors related to the life of the cooling fan?
2021-10-14Estimated service life of cooling fan hydraulic bearings and double ball bearings
2021-12-24Will the positive and negative poles of the DC cooling fan burn if connected reversely?
2022-04-20What should be paid attention to for the cooling fan of the new energy charging pile?
2021-08-17What methods can improve the quality of cooling fans?
2022-01-15Why do cooling fan manufacturers want to get an air volume tester
2021-08-20How to choose a silent fan?
2021-08-16DC fan permanent magnet motor has excellent controllability advantages
2022-03-11How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2022-02-23The structure of the electric fan
2022-03-22About the cause and treatment of DC fan noise
2021-11-19Factors for the rapid rise of a large number of domestic excellent DC fan brands
2022-03-14Features of DC blower
2021-12-14How to use only two cooling fans with three lines?
2021-09-18What determines the price of a DC fan
2021-10-28How DC Fans Work
2022-05-12Are more computer fans better?
2022-03-29Power saving tips for electric fans
2022-05-06Can waterproof fans operate at low temperatures?
2021-10-20Why are oil-contained cooling fans prone to noise?
2021-09-28Why is the stock 4010 fan so cheap?
2021-08-30Analysis on whether the air outlet is not unblocked has an effect on the cooling fan?
2021-10-12The main components of the electric fan
2022-07-19How electric fans work
2022-03-22Why are most of the current cameras with infrared function
2021-09-10Guidelines For The Use Of Axial Fan Blades
2021-04-28the current cameras with infrared function
2021-12-09What is the difference between a hydraulic cooling fan and an oil-contained cooling fan?
2021-09-07Mergers and acquisitions integration and capital operation among large DC fan manufacturers are beco
2022-04-14Understand the installation essentials of DC fans
2021-12-22Talk about the reason why the cooling fan does not turn
2021-11-03What are the factors related to the life of the cooling fan?
2021-10-13What factors need to be considered for the reliability of the cooling fan?
2021-12-07How do manufacturers do dust-proof cooling fans?
2022-02-22Why does the cooling fan manufacturer have no inventory?
2021-08-10the DC cooling fan burn if connected
2021-12-09What is the reason for the slow start of the electric fan
2022-04-27hou much do you know about the working principle of fan cooling
2021-12-24Advantages and Performance of DC Cooling Fans
2022-04-15Can the speed of AC fan be adjusted?
2022-01-27What is the difference between a DC fan and an AC fan?
2022-03-01Can the cooling fan pass the salt spray test?
2021-08-02DC fan suppliers discuss with you the main factors of fan cooling
2022-03-10Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-09-22Can the speed of the micro cooling fan be adjusted?
2022-01-08Is it sufficient to increase the speed of the high-volume cooling fan?
2021-09-13What information does the manufacturer need to make a cooling fan sample?
2022-01-25Why are oil-contained cooling fans prone to noise?
2021-12-16Analysis of DC fan and its working principle
2021-10-20The main points of using the air purifier cooling fan
2022-04-18How to fix the slow start of the electric fan
2022-04-27Which is better, AC fan or DC fan?
2022-01-05How to solve the noise problem of cooling fan
2022-03-16About the cause and treatment of DC fan noise
2021-11-23Must-see for fan
2021-11-25iring shall be installed by professionals
2021-12-23Axial fans and centrifugal fans
2022-04-08What are the advantages of DC direct floating hot fans?
2022-01-10Why are fans mostly square, can they be made into rectangles?
2022-01-07What types of cooling fans are there?
2022-03-24The three-phase star connection of the DC cooling fan has a variable frequency motor control circuit
2022-03-17What is the effect of the waterproof fan?
2021-11-03The core difference between 4010 cooling fan and 4020 cooling fan
2021-08-05Application field of DC fan
2021-11-05What are the requirements for the cooling fan of the charging pile?
2021-09-17Is it possible to install the computer cooling fan backwards?
2021-11-09Ubiquitous computer cooling fan
2022-04-14The heat dissipation characteristics of axial fans
2021-08-18Analysis of why the waterproof fan has a backwind phenomenon?
2022-02-27The main structure and working principle of electric fan
2022-04-21Can the tolerance of the DC cooling fan be reduced?
2021-09-26the advantages of imported cooling fans?
2021-12-10The cooling fan is used to force the air supply to the electronic radiator through the wind speed
2022-03-18What are the advantages and characteristics of the DC fan produced?
2022-03-04Different types of cooling fans
2022-05-16Classification and application of fans in our lives
2022-04-11How to use electric fan for baby
2022-05-09Where are the cooling fan manufacturers mainly concentrated
2021-09-15What effect does jitter have on performance when the cooling fan is running?
2021-12-20Why do ultra-thin 2006 cooling fans often have noise problems?
2021-10-11What information does the manufacturer need to make a cooling fan sample?
2021-12-20Explain the components of the cooling fan
2022-05-17How much is the power of a household fan
2022-04-01What are the fans used for heat dissipation in electric vehicle charging piles?
2021-08-17How to increase the air volume/wind/pressure of the cooling fan?
2022-02-18How does the installation method of the cooling fan affect the service life?
2022-01-26Electric fan: how high temperature and physiology interact
2021-11-24How long can the manufacturer of 4010 cooling fan guarantee?
2021-12-27Why is the 3007 silent fan difficult to achieve, and is there any good way?
2022-02-18Advantages and structural defects of hydraulic fans
2021-12-27Briefly describe the characteristics of the DC blower
2022-04-07What is the difference between a DC cooling fan and an AC cooling fan?
2021-09-07Does the cooling fan work at low temperatures have an impact?
2021-10-21Repair of electric fan not rotating
2022-04-02Can the cooling fan be dustproof?
2021-10-19Why is the cooling fan squirting oil?
2021-10-18Analysis on whether the cooling fan can be waterproof after adding lubricating oil?
2021-10-13How is DC fan better than AC fan?
2022-01-06How dustproof and reliable the cooling fan is
2022-01-22DC fan suppliers discuss with you the main factors of fan cooling
2022-03-07Reasons and repair methods for household floor fans not rotating
2022-03-21Factors for the rapid rise of a large number of domestic excellent DC fan brands
2022-03-09What does high frequency microwave PCB circuit board exposure do?
2021-09-14Can 4010DC fans be made waterproof?
2021-08-23The main application areas of DC cooling fans
2022-04-25Preventing Excessive Vibration of Industrial Equipment Cooling Fans and Vibration Reduction Scheme
2022-05-18Why do cooling fan manufacturers have to order several samples?
2022-04-19Smart toilet cooling fan cleaning tips
2022-04-18Where are the cooling fan manufacturers mainly concentrated
2021-09-29What effect does jitter have on performance when the cooling fan is running?
2021-09-14Did you know that the air is continuously recirculated in the unit of the DC fan coil unit?
2022-03-18The cooling fan is used to force the radiator through the wind speed
2022-03-16increase the speed of the high-volume cooling fan?
2021-12-09What is the difference between a DC cooling fan and an AC cooling fan?
2021-09-06Why are small fans difficult for manufacturers of cooling fans to design temperature control and spe
2021-08-27How DC Fans Work
2022-04-06What is the difference between a heatsink and a fan on a computer?
2022-03-23Will the power cord of the cooling fan burn if it is connected upside down?
2021-08-09What is the difference between a 3-wire and 4-wire CPU cooling fan for a computer?
2021-09-01Will the 12V cooling fan be damaged if the voltage is lower than the rated voltage?
2021-11-16Why does the cooling fan manufacturer have no inventory?
2022-01-18Axial fans and centrifugal fans
2022-05-16What is the difference between ball bearings and oil-impregnated bearings for cooling fans?
2021-11-08Heat waves will change the way of life in the future
2021-11-25What are the requirements for cooling fans for Bitcoin mining machines?
2021-08-12Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-12-17What are the technical treatments for the internal structure of the waterproof fan?
2021-11-08What is the effect of the waterproof fan?
2021-11-01What are the processes for the internal structure of the waterproof fan?
2021-11-18What is the reason why the cooling fan in the air purifier does not rotate?
2021-09-22Will the 12V cooling fan be damaged if the voltage is lower than the rated voltage?
2021-11-11Why does the cooling fan manufacturer require a minimum order quantity, isn't it a standard product?
2022-02-16What are the voltage specifications of the DC cooling fan
2021-11-02What are the advantages of imported cooling fans?
2021-09-09choose a cooling fan to be more silent?
2021-12-13What is the root cause of the cooling fan failure?
2021-11-19Cooling fan manufacturers tell you the source and solution of noise
2022-03-11Noise formation and treatment of cooling fan?
2022-05-20What is the reason for the noise of 4010 DC fan?
2022-01-20the speed of the cooling fan?
2021-12-13What is the difference between ball bearings and oil-impregnated bearings for cooling fans?
2021-11-15Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-09-23How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2021-08-11Application of Photodiode
2021-12-08Share DC fan speed with temperature control function
2022-03-03Reasons and solutions for the electric fan not turning
2022-04-06Analysis of the reasons for the cooling fan rotation stall
2022-03-02Why do cooling fan manufacturers have to order several samples?
2021-09-09Characteristics of DC Blowers
2022-05-13What is the difference between a hydraulic cooling fan and an oil-contained cooling fan?
2021-10-08Can the DC cooling fan vibrate with high intensity?
2021-12-16Can the DC cooling fan vibrate with high intensity?
2021-09-28Can waterproof fans work at low temperatures?
2021-11-01What specifications are good for the ventilation fan of the air purifier?
2021-08-24Do you know how the fan works?
2022-03-25Teach you how to use a DC fan
2022-05-12How much high temperature can the cooling fan resist?
2021-11-23What does the life span of the cooling fan have to do with?
2021-08-05Why is there a quantity requirement for the cooling fan?
2021-10-26What are the characteristics of lightweight DC fans for drones?
2021-12-06What is the gap between domestic cooling fan manufacturers and foreign manufacturers?
2021-09-29Does the cooling fan work at low temperature have any effect?
2021-08-13How do manufacturers do dust-proof cooling fans?
2022-02-14What are the protection requirements for the cooling fan of the charging pile?
2021-08-19electric fan
2022-04-21Reasons and maintenance methods of electric fans not rotating
2022-04-01Features of DC blower
2021-10-26The main application areas of DC cooling fans
2022-05-11Analysis of the failure and cause analysis of the cooling fan
2021-10-13What are the processes for the internal structure of the waterproof fan?
2021-11-11How to choose a manufacturer for the cooling fan of the mining machine case to reduce the cost
2021-08-13How to solve the noise of the cooling fan of the mining machine chassis?
2021-08-12How is the cooling fan designed
2021-12-25Is wireless charging slower than wired charging?
2022-02-14Interpretation of the heat transfer method of low-noise DC fans
2022-03-03What is the reason why the cooling fan in the air purifier does not rotate?
2021-09-23How to choose the current and voltage sensor power supply?
2022-04-13Do you know what are the commonly used bearings for cooling fans?
2022-03-09The structure of the electric fan
2022-07-19Design steps of cooling fan
2022-03-01About the waterproof design of the cooling fan of the charging pile cabinet?
2021-08-16What are the purchasing skills of electric fans?
2022-05-09What fields are DC cooling fans mainly used in
2022-04-26What are the processes for the internal structure of the waterproof fan?
2021-11-23Can cooling fan manufacturers customize high-volume DC 9V fans?
2021-12-21How to realize the silent cooling fan?
2021-08-02What are the characteristics of the charging pile cabinet fan?
2021-08-18Common faults of cooling fans and their solutions
2022-02-28Learn about monitoring and protection of DC fans
2022-04-08Which cooling fan is better?
2022-03-24Essential tips for life: how to use the cooling fan correctly
2022-07-15Why is the cooling fan developing so fast in China?
2021-08-30What is the structure of the fan
2022-07-18Is it sufficient to increase the speed of the high-volume cooling fan?
2022-04-20What is the reason why the cooling fan in the air purifier does not rotate?
2021-09-24What is the difference between a hydraulic cooling fan and an oil-contained cooling fan?
2021-09-06What are the factors related to the life of the cooling fan?
2021-10-18What is the method of controlling and adjusting the speed of the cooling fan?
2021-10-15Can the DC fan speed be adjusted?
2021-08-25The development trend of cooling fan
2022-04-11cooling fan manufacturers have to order several samples?
2021-12-10How does the DC blower work?
2022-01-14Talk about the reason why the cooling fan does not turn
2021-10-21What should I do if the computer fan is loud
2022-03-25What is the cause of the tripping of the cooling fan of medical equipment?
2022-05-18The speed of the cooling fan
2021-12-22Can the cooling fan be silent?
2021-12-01What is the reason why the cooling fan in the air purifier does not rotate?
2021-12-21The correct way to open the DC fan accessories
2021-12-24Take you to see what is a DC fan
2022-01-17Teach you how to use a DC fan
2022-04-07What are the tips for cleaning the dust of the cooling fan
2021-10-28DC cooling fan
2022-05-17The parameters of the cooling fan of the Antminer are revealed, and the price is unbelievably low
2021-12-07Analysis on whether the air outlet is not unblocked has an effect on the cooling fan?
2021-10-14What is the warranty period for the cooling fan?
2021-08-03Tell you what to pay attention to when choosing a cooling fan for communication equipment
2022-03-04Which type of cooling fan is prone to noise?
2021-11-10What common questions should be paid attention to during the application of cooling fans?
2022-01-17Can the speed of the DC fan be adjusted?
2021-11-02Troubleshooting method for notebook CPU cooling fan
2021-10-25Discussion on whether the computer power fan is muted
2021-10-25Small, tiny, ultra-thin cooling fan the size of a fingertip
2022-04-12What is the relationship between the power of the DC axial fan and the air volume?
2021-12-02Analysis of the source of DC fan noise
2021-11-16How about the waterproof function of the cooling fan?
2022-04-12The price of cooling fan manufacturers is different, what is the poor performance?
2022-01-17How do manufacturers do dust-proof cooling fans?
2021-12-28New product development, how to quickly choose a suitable cooling fan
2022-02-18Electric fan: distinguish between dry heat and damp heat
2021-11-24Will the current sensor be magnetized?
2022-04-13Disassemble the components of the cooling fan
2022-05-10Why is the fan not turning?
2022-04-02Cooling fan manufacturer Chengda shares with you the cleaning skills of fans
2022-03-10Which frameless cooling fan or framed cooling fan has the largest air volume?
2021-08-06How to choose a cooling fan to be more silent?
2021-09-02The air volume of the cooling fan is related to the air pressure of the cooling fan
2022-01-24A comprehensive introduction to DC cooling fans
2022-04-25What is the specific meaning of the air volume parameters of the cooling fan?
2021-10-11Why is the radiator fan that is exhausted to dissipate heat more easily than the blower
2021-09-16How are the cooling fan manufacturers under the new crown epidemic in 2021?
2021-08-03How to deal with the noise of the micro cooling fan
2021-12-25What is the working principle of the DC fan coil unit?
2022-03-15Can the speed of the micro cooling fan be adjusted?
2022-01-13Do you know what are the commonly used bearings for cooling fans?
2022-03-14Why does the ultra-thin cooling fan 3007 often have noise problems?
2021-09-26Can the inventory of the cooling fan manufacturer be purchased?
2021-08-09What are the advantages of imported cooling fans?
2022-04-19Why is the 4010DC cooling fan so cheap?
2021-08-24How to choose the cooling fan manufacturer of the mining machine? 2 tricks to get it done
2021-12-28Why is it difficult for manufacturers of small fans to design temperature control and speed regulati
2021-08-27What are the specifications of the silent fan Jingyangda?
2021-12-06Why is there a quantity requirement for the cooling fan?
2021-12-14What is the root cause of the cooling fan failure?
2021-11-23About the air volume and pressure of the cooling fan in front of you
2021-08-06What is the main reason for the quality of the declassified cooling fan?
2021-08-04What are the processes for the internal structure of the waterproof fan?
2022-02-24Silicon oil fan clutch structure composition
2021-11-26Advantages and structural defects of hydraulic fans
2022-02-19Does the cooling fan work at low temperatures have an impact?
2021-10-19Disassemble the components of the cooling fan
2022-04-22Introduction and Application of Photodiode
2021-09-10Will the positive and negative poles of the DC cooling fan burn if connected reversely?
2021-09-13How long is the life of the DC fan with high air volume?
2022-02-28Fan manufacturers
2022-04-22What information does the manufacturer need to make a cooling fan sample?
2021-09-14DC fan permanent magnet motor has excellent controllability advantages
2022-03-09How to remove the cooling fan on a desktop computer?
2022-03-23How to choose a more reasonable DC axial fan
2021-08-19The working principle of silicone oil fan
2021-11-26What effect does jitter have on performance when the cooling fan is running?
2022-01-24What is the quality of the fans used in the LED lighting industry?
2021-11-09The price of cooling fan manufacturers is different, what is the poor performance?
2021-08-10What is an electric fan made of?
2022-07-18Safe operation and long service life is a major feature of DC blower products
2022-04-11Teach you to distinguish the types of cooling fans
2022-04-15Four details to pay attention to when using a DC blower
2022-05-19How long is the life of 4010 DC fan with high air volume?
2021-08-23Analysis of the source of DC fan noise
2021-11-10What is the gap between domestic cooling fan manufacturers and foreign manufacturers?
2021-09-16Do you know how the fan works?
2022-05-11How to choose a cooling fan to be more silent?
2021-10-15Where are the current weaknesses of domestic cooling fan manufacturers?
2021-08-20What 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?
2021-11-18What are the requirements for non-standard samples of axial flow cooling fan manufacturers?
2021-08-2710MM thick cooling fan, what is a strange phenomenon in the industry
2022-01-19
Link: Rubber 3D print
Tel: +86-0755-28035808
Fax: +86-0755-28035808
Phone/Wechat: 0086-18038069461
E-mail: yyh88@snowfan.com.cn
Address: No.3 Factory Building ,DiYin Industrial Zone ,Kukeng Community ,Guanlan Street ,Longhua District ,Shenzhen
About Us
Products
Application
Support
News
Contact
中
