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Hello, welcome to the official website of Heyida Heat Exchange Equipment Factory!

禾益达 High-start technology innovative manufacturer air-cooled oil cooler research and development benchmarking enterprise

National Consulting Hotline 4000-622-553

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制造耐用高效的风冷却器
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National Advisory Hotline: 4000-622-553

Fax: 0757-86238856

Emali: 1919503615@qq.com

Address: No. 35 North Nanhai Avenue, Nanhai District, Foshan City, Guangdong Province

HOBDAR / Heyida Wind Cooler Instruction Manual [03-25 09:13]
Welcome to choose our factory's air cooler, please read this article carefully before use to ensure safety. 1.0 Product selection 1.1 AF0510, AF1025 The design pressure is less than 1.0MPa, which is only suitable for the drain cooling of variable vane pumps. 1.2 The design pressure of HD and AH series products is less than 2.0MPa (static pressure), which is suitable for independent circulation cooling of the system. If the oil return cooling method is selected (not recommended), the use conditions of oil return cooling must be evaluated by themselves, such as the impact of circuit pulses and control element failures on the oil return flow rate. When the flow rate exceeds 0.5 m / s, a burst will occur. Do not use oil return cooling for high pressure and high flow oil pressure system. 1.3 Air Cooler Matching: First determine the air cooling
On the installation and use of hydraulic oil air-cooled radiators [06-06 10:14]
A. Due to the different working principle and structure of air cooling and traditional water cooling, domestic manufacturers often connect to the system according to the previous water cooling installation method, which is not recommended. Most foreign companies, such as Japan and Germany, use independent circulation cooling methods, so that they are separated from the system and there is no problem of oil leakage. When air cooling is connected to the circuit, it is necessary to install a bypass circuit so that the radiator can be protected in the event of a machine failure, such as the electromagnetic card valve, sudden braking, circuit control failure, etc. The main reason for the radiator burst is that the pressure of oil return pulse rises instantly. In addition, the bypass circuit must be returned to the fuel tank separately. If it is combined with the system return pipe, it is also a failed installation method.
Two necessary parameters for air cooler selection calculation [12-23 10:43]
Each standard air cooler product has a corresponding performance curve. The user selects the model according to the curve, which is based on two necessary parameters: first, the actual flow rate, and second, the equivalent cooling power, also called Equal ratio cooling power.
Selection case of heating & air cooler of hydraulic motor [12-22 10:39]
Q: The flow rate of my system is about 60L. I want to choose a small air cooler, but the flow rate can meet my requirements and is used to cool the oil return of the hydraulic motor.
ExdⅡBT4Gb explosion-proof air cooler & air-cooled oil radiator manufacturer [11-26 10:51]
Air-cooled and oil radiators equipped with explosion-proof AC motors (ExdⅡBT4Gb, F-class insulation, main body protection class is IP55) are standard products of Heida, mainly used in heavy equipment in petrochemical, mining, shipbuilding, dock and other industries .
On Independent Circulating Air Cooler @ Stable Hydraulic Oil Radiator @ Lubricant Radiator & Choice @ 禾 益 达 [11-25 10:30]
Hydraulic transmission HYDRAULIC TRANSMISSION. In some industrial equipment, such as extrusion and forging machinery, the holding time is long; the main components such as compound gearboxes, large bearings, etc., have large heat losses; and the lubrication system of the host, which requires cooling. Guaranteed working accuracy MACHINNING ACCURACY.
Technical parameter design of explosion-proof air cooler [11-24 10:26]
Known conditions: 5000L fuel tank, independent oil pump circulation system of air cooler, 125L / min, requires 1 hour to drop from 95 ℃ to 60 ℃. Heating power Pv calculation Pv = ρxV × Cx △ T / H = 0.88x5000x2.15x (95-60) /60x60=91.972kw Assuming the maximum ambient temperature is 40 ° C, the actual temperature difference is: T1-T2 = 95-40 = 55 ℃
An air cooler with a heat dissipation power of 35Kw suitable for pressure reducer pressure oil and thin oil lubrication pump station [07-19 08:00]
Features: 1, HD18140T, the core of this air cooler is vacuum brazed by a typical plate-fin aluminum alloy, the design pressure is 20 kgf, and the pressure test is 35 kgf (3.5 MPa). 2, especially for applications: gear oil, equipment lubricants and other special fluid lubricant cooling.
Selection examples of hydraulic system radiators for foreign customers [07-16 08:00]
Business: Liang Gong, please help me with a radiator calculation manual, which is the HD600 radiator of my factory above. Now the fan is replaced with 700, 160Pa, and the air volume is 14000.
Case of insufficient cooling of hydraulic station cooler [07-15 08:00]
Customer: Liang Gong, there is a customer who wants to find a hydraulic station cooler with a working pressure of 250psi and a flow rate of only 25L / m.
Specific calculation example of equivalent cooling power of hydraulic cooler [07-14 08:00]
Equivalent cooling power calculation example. The known conditions for hydraulic coolers used in hydraulic systems are as follows: HAD-90 hydraulic oil requires heat dissipation: 58000BTU / hr Flow Rate (L / m) *: 115 Inlet Temperature inlet temperature (℃) *: 60 ℃ Outlet Temperature (℃) *: 50 ℃ Maximum ambient temperature: 40 ℃
Digest of Hydraulic Air Cooler: Expert or Brick House [07-13 18:24]
There is a scholar: For a long time, laymen have said that his level is high, but laymen often do not agree (annotation: there is an air cooler manufacturer claims that how high and high my product test pressure is, the oil return pulse will not burst into clouds ). The camps on both sides are obvious. Why is there such a clear difference? In my opinion, the reason is that his point of view is often logically "right", but in practice it is "wrong", and the logic and practice deviate.
Selection case of air cooler for hydraulic system of crushing machinery [07-11 08:00]
Passenger: The 300L fuel tank needs to be lowered from 90 degrees to 45 degrees. ISO VGA 46 oil is used for crushing machinery. Is it possible to lower it in 30 minutes? Which cooler to use? Ambient temperature: 25 ~ 35 ℃
On the use of fans for air coolers in hydraulic systems [07-09 08:00]
The air cooler used in the hydraulic system is called "air-cooled oil cooler". The main components are aluminum alloy radiator core, casing, and fan. Talking about the fan here, the environmental temperature used by the fan is particularly mentioned, and the temperature factors around the fan must be carefully and carefully considered. Generally speaking, there is a range requirement for the use temperature of the whole fan: -10 ℃ ~ + 60 ℃.
How to install the air cooler of hydraulic system [07-08 08:00]
Independent circulation cooling method and oil return cooling, parallel check valve is installed correctly. In consideration of the unstable pressure of the hydraulic system circuit and the high-pressure pulse that may be generated at the moment of oil return, Heyida recommends that the independent cooling method be preferred to ensure the service life of the air cooler.
Foshan air cooler manufacturers consulting common problems [07-07 08:00]
1, engine 750 kW, oil pump 400 displacement, pumping motor 11 kW. The cooling oil is 320 #, how much air cooler do you need? 2. I am anxious to ask you for advice: the dual pump flow rate is 340 liters / min, the motor power is 37KW, what machine should be equipped with at least for independent circulation? The main reason is the restricted installation position.
Do Foshan manufacturers sell hydraulic station air coolers? [07-04 08:00]
The South China Hydraulic & Pneumatic Hardware & Electromechanical City at the end of Fenjiang North Road, Foshan City (at the end of Xiedie Bridge), has a sales office, the address is 37-39 points, Second Road, Second District, Foshan Nanhai Heyida Heat Exchange Equipment Factory Point of sale. Various air cooler prototypes are complete, and there is a certain amount of stock for stocking, and demanders can come to choose. The telephone number is 0757-81189293 89926211, and the contact person is Miss Hu.
Selection example of hydraulic oil cooler [07-02 08:00]
Passenger: Hydraulic oil cooler performance requirements: flow rate: 6L / min inlet oil temperature: 85 ° C outlet oil temperature: 50 ° C air temperature: 45 ° C air flow: approx 1100m3 / h oil Density @ 15 ° C: 0.92g / cm3 oil viscosity @ 40 ° C: 13,5mm2 / s specific heat capacity: approx. 1.7kJ / kg * K Dimensions: Width: 250mm Hight: 480mm Depth: 200mm.
Frequently Asked Questions about Air Cooler [07-01 08:00]
Guest: Can you provide a question and answer about the calculation of the power of the air cooler? For example, how do we choose an air-cooled model? Is there literature? Technique: Yes, in fact, there are related pages in our manual. Guest: How to calculate the cooling power of the air cooler? Technology: Generally speaking, the selection points are: 1. Calculate the cooling power of the equipment accurately 2. Calculate the return flow (the return flow is not equal to the flow of the pump). According to the design manual recommendation, multiply by 2-3 times the flow safety factor. The flow selection of the air cooler is the same as that of the external filter, which is 2 to 3 times the safety factor. 3. Select the air cooler that meets the parameters 1 and 2 at the same time. 4. Air-cooled cooling target oil temperature has the greatest correlation with ambient temperature. The best temperature that can be achieved is: about 10 ° C higher than the ambient temperature.
What should I do if the air cooler does not dissipate well? [06-29 08:00]
Summer is here, the air cooler does not dissipate well enough, and the oil temperature of the hydraulic system has not been able to drop. After the hydraulic station has been working for one hour, the entire system has reached thermal equilibrium. Some customers have measured that the oil temperature has reached above 80 ° C, and the working environment temperature There is also 36 ° C.
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