Hydraulic oil temperature control system and method
A technology of a temperature control system and a temperature control method, applied in the directions of fluid pressure actuating system components, fluid pressure actuating devices, mechanical equipment, etc., can solve the problem of increasing hydraulic oil preheating time, increasing cost, and reducing the efficiency of oil cooler use And other issues
Inactive Publication Date: 2015-03-25
ZOOMLION HEAVY IND CO LTD
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[0004] However, such a temperature-controlled hydraulic system also has certain defects in actual use, that is, some system return oil always flows back to the oil tank through the check valve, and this will reduce the efficiency of the oil cooler when the ambient temperature is high , and in order to prevent the oil temperature from being too high, a more powerful oil cooler has to be used, which will lead to an increase in cost. When the ambient temperature is low, since most of the system return oil is cooled by the oil cooler, the oil temperature will Lower, thus increasing the warm-up time of the hydraulic oil
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[0025] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0026] Such as figure 1 and 2 As shown, the hydraulic oil temperature control system provided by the specific embodiment of the present invention includes an oil cooling device 3 connected in series in the system oil return circuit 6, a bypass valve 5 connected in parallel with the oil cooling device 3, and a valve for detecting the temperature of the oil cooling device 3. An oil temperature detection device 2 for hydraulic oil temperature in the downstream oil circuit, a pressure detection device 8 for detecting hydraulic oil pressure in the upstream oil circuit of the oil cooling device 3, and a controller 1, wherein the oil temperature detection device 2 and...
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The invention discloses a hydraulic oil temperature control system and method. The hydraulic oil temperature control system comprises an oil cooling device (3), a bypass valve (5), an oil temperature detection device (2), a pressure detection device (8) and a controller (1), wherein the oil temperature detection device (2) and the pressure detection device (8) are electrically connected to the controller (1), and the controller (1) controls the opening degree of the bypass valve (5) according to temperature signals input through the oil temperature detection device (2) and pressure signals input through the pressure detection device (8). By means of the hydraulic oil temperature control system, the temperature of hydraulic oil can be correspondingly adjusted according to the environment temperature, and system parts such as the hydraulic oil cooling device are correspondingly protected.
Description
technical field [0001] The invention relates to the field of hydraulic technology, in particular to a hydraulic oil temperature control system and a hydraulic oil temperature control method. Background technique [0002] Generally, in a hydraulic system, the temperature of the hydraulic oil is one of the important factors affecting the performance of the system, and an appropriate hydraulic oil temperature is a prerequisite for the hydraulic system to perform optimally. If the temperature of the hydraulic oil is too low, the viscosity will be very high, which will cause difficulty in starting the system and increase the pressure loss, and may cause some hydraulic components to aggravate early wear due to insufficient hydraulic oil lubrication, shorten the service life of hydraulic components, and reduce The performance of the system; if the temperature of the hydraulic oil is too high, the viscosity will be very small, which will increase the leakage of the system, and may c...
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Login to View More IPC IPC(8): F15B21/04
CPCF15B21/042
Inventor 金开白晶梅广红雷琳张玉丹
Owner ZOOMLION HEAVY IND CO LTD