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Working method of hydraulic heat exchange device with hydraulic bypass of piston pressure relief valve

A technology of a heat exchange device and a working method, which is applied in fluid pressure actuation devices, fluid pressure actuation system components, mechanical equipment, etc., and can solve problems such as increased pressure, unbalanced flow, easily damaged radiators, and scrapping, etc. To achieve the effect of not easy to damage and high reliability

Active Publication Date: 2017-09-29
江苏金荣森制冷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has a small liquid storage capacity and no buffer. In the case of large temperature difference, low temperature environment, unbalanced flow, liquid with a certain viscosity, and fluid with impact force, the pressure inside the heat dissipation channel of the radiator will also increase. , especially in the case of impact force and relatively high viscosity fluid, due to the resistance of the fluid inside the channel, the fluid cannot quickly pass through the inside of the radiator channel, so that the pressure increases, exceeding the maximum operating pressure of the radiator, and the radiator is very Easily damaged and scrapped

Method used

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  • Working method of hydraulic heat exchange device with hydraulic bypass of piston pressure relief valve
  • Working method of hydraulic heat exchange device with hydraulic bypass of piston pressure relief valve
  • Working method of hydraulic heat exchange device with hydraulic bypass of piston pressure relief valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Example 1. When the liquid flows from left to right and the main hydraulic circuit is blocked, the pressure at the left end of the piston relief valve is greater than the pressure at the right end, because the pressure in the fluid channel of the piston on the left side of the diaphragm is greater than that of the piston on the right side of the diaphragm The pressure in the fluid channel, the fluid pushes the diaphragm to move to the right, so that the piston also moves to the right. The piston fluid channel flows out through the fluid hole to a fluid channel half cavity on the right, and then flows into the right piston fluid channel, so as to achieve the purpose of pressure relief. At this time, the spring on the left is in a stretched state. The spring on the right is in a compressed state until the pressure on the left and right sides of the diaphragm is equal, the piston returns to its original position, and the main hydraulic circuit returns unobstructed.

Embodiment 2

[0065] Example 2. When the liquid flows from left to right and the main hydraulic circuit is blocked, the pressure at the right end of the piston relief valve is greater than the pressure at the left end, because the pressure in the fluid channel of the piston on the right side of the diaphragm is greater than that of the piston on the left side of the diaphragm The pressure in the fluid channel, the fluid pushes the diaphragm to move to the left, so that the piston also moves to the left. The piston fluid channel flows out through the fluid hole to a fluid channel half cavity on the left, and then flows into the left piston fluid channel, so as to achieve the purpose of pressure relief. At this time, the spring on the right is in a stretched state. The spring on the left is in a compressed state until the pressure on the left and right sides of the diaphragm is equal, the piston returns to its original position, and the main hydraulic circuit returns unobstructed.

[0066] Th...

Embodiment 1

[0068] The accumulator tube is built in. When the liquid inlet and outlet of the anti-impact energy storage radiator are located on the top of the first liquid collection tank 501 and the second liquid collection tank 502, the energy storage tube 500 is installed in the first liquid collection tank 501 and the second liquid collection tank 502. The inside of the second liquid collection tank 502 is enough.

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PUM

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Abstract

The invention relates to a work method of a hydraulic heat exchange device of a hydraulic bypass with a piston-type pressure release valve. The hydraulic heat exchange device of the hydraulic bypass with the piston-type pressure release valve comprises an equipment heat emitting source, a radiator and a liquid storage tank which are circularly connected in series through an oil way. A cooling fan is arranged on one side of the radiator. The parts, at the two ends of the radiator, of the oil way are connected with the piston type pressure release valve in parallel. When the radiator is blocked or the internal pressure of the radiator is too large, a hydraulic main path is not smooth, the pressure of one end of the piston type pressure release valve is larger than that of the other end of the piston type pressure release valve, fluid pushes a partition plate to move towards the low-pressure side, and the purpose of pressure release is achieved. The piston is placed to the original position till the pressure on the two sides of the partition plate is equal, and the hydraulic main path returns to be smooth. The work method has the beneficial effects of being high in reliability, not prone to damage and capable of guaranteeing the stable system running.

Description

technical field [0001] The invention relates to a working method of a hydraulic heat exchange device with a hydraulic bypass of a piston pressure relief valve. Background technique [0002] As we all know, the best oil temperature of the hydraulic system is between 35 and 55 degrees Celsius. Once the temperature rises above 60 degrees Celsius, the system of the hydraulic system will drop significantly, and equipment failures will continue to occur, resulting in a serious decline in the stability of the equipment. The proper functioning of the machine equipment cannot be guaranteed. Especially in the midsummer season, the oil temperature is too high, and even the machinery and equipment are often shut down. [0003] Therefore, the stability of the hydraulic heat exchange device directly affects the working status of the machinery and equipment. When the liquid pressure in the traditional hydraulic heat exchange device is too high, it will directly lead to excessive pressure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B21/04
CPCF15B21/042
Inventor 黄晓军
Owner 江苏金荣森制冷科技有限公司