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Operating method for industrial refrigeration device of hydraulic bypass with piston-type pressure relief valves

A technology for industrial refrigeration and working methods, applied in the direction of fluid pressure actuation devices, refrigerators, refrigeration components, etc., can solve the problems of unbalanced flow, increased pressure, small liquid storage, etc., and achieves high reliability and is not easy to be damaged. Effect

Active Publication Date: 2016-11-16
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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  • Operating method for industrial refrigeration device of hydraulic bypass with piston-type pressure relief valves
  • Operating method for industrial refrigeration device of hydraulic bypass with piston-type pressure relief valves
  • Operating method for industrial refrigeration device of hydraulic bypass with piston-type pressure relief valves

Examples

Experimental program
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Effect test

Embodiment 1

[0080] 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

[0081]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.

[0082] The...

Embodiment 1

[0084] 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 sump 502 is enough.

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Abstract

The invention relates to an operating method for an industrial refrigeration device of a hydraulic bypass with piston-type pressure relief valves. The industrial refrigeration device of the hydraulic bypass with the piston-type pressure relief valves comprises a hydraulic oil conveying pipeline. A hydraulic oil conveying pipeline conveying pump, a heat dissipater and a heat exchange device are sequentially arranged on the portion, between a hydraulic oil inlet and a hydraulic oil outlet, of the hydraulic oil conveying pipeline. A heat dissipation fan is arranged on one side of the heat dissipater. A gas-liquid separator, a compressor, a condenser, a liquid storage, a drying filter, a cooling pipeline solenoid valve and a throttling device are sequentially arranged on the portion, between a cooling outlet and a cooling inlet, of a cooling pipeline of the heat exchange device. A cooling pipeline bypass valve is arranged on the portion, between the compressor and the condenser, of the cooling pipeline and the portion, between the throttling device and the heat exchange device, of the cooling pipeline. The piston-type pressure relief valves are arranged on oil paths at the two ends of the heat dissipater in parallel. The operating method has the advantages that reliability is high, damage is unlikely to occur, and stable operation of a system is ensured.

Description

technical field [0001] The invention relates to a working method of an industrial refrigeration 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 industrial refrigeration device directly affects the working status of the machinery and equipment. When the liquid pressure in the traditional industrial refrigeration device is too high, it will directly lead to excessive press...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/04F25B41/04F25B41/06F25B43/00F25B41/20F25B41/30
CPCF15B21/042F25B43/003F25B43/006F25B2400/04F25B2500/28F25B2500/06F25B2500/07F25B2600/2525F25B41/30F25B41/20
Inventor 黄晓军
Owner 江苏金荣森制冷科技有限公司
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