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Temperature-controlled industrial constant-temperature device of hydraulic bypass with piston type pressure-relief valve

A thermostatic device, pressure relief valve technology, applied in the direction of temperature control, non-electric variable control, control/regulation system, etc., can solve the problems of easy damage of radiator, scrapping, unbalanced flow, exceeding the radiator, etc., to achieve extended use life, ensure stable operation, and save energy

Inactive Publication Date: 2018-04-20
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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  • Temperature-controlled industrial constant-temperature device of hydraulic bypass with piston type pressure-relief valve
  • Temperature-controlled industrial constant-temperature device of hydraulic bypass with piston type pressure-relief valve
  • Temperature-controlled industrial constant-temperature device of hydraulic bypass with piston type pressure-relief valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] 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

[0101] 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.

[0102] Th...

Embodiment A

[0104] 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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Abstract

The invention relates to a temperature-controlled industrial constant-temperature device of a hydraulic bypass with piston type pressure-relief valves. The constant-temperature device is characterizedby comprising a hydraulic oil conveying pipeline; a hydraulic oil conveying pipeline conveying pump, a heat dissipation device, a heat exchange device and a tubular heater are arranged successively from a hydraulic oil inlet to a hydraulic oil outlet at the hydraulic oil conveying pipeline. A heat exchange pipeline is connected between an upper heat connection opening and a lower heat connectionopening of the heat exchange device; and a gas-liquid separator, a compressor, a condenser, a heat exchange pipeline bypass valve, a four-way valve, a first one-way valve, a first reservoir, a first drying filter, a first heat exchange pipeline solenoid valve, a first throttling device, a second one-way valve, a second reservoir, a second drying filter, a second heat exchange pipeline solenoid valve, and a second throttling device are arranged at the heat exchange pipeline. And piston type pressure-relief valves that are connected in parallel are arranged at oil paths at the two ends of the heat dissipation device. The temperature-controlled industrial constant-temperature device has advantages of high reliability, damage prevention, and stable system operation.

Description

technical field [0001] The invention relates to a temperature-controlling industrial constant temperature device with a hydraulic bypass of a piston pressure relief valve. Background technique [0002] As we all know, the optimal oil temperature of the hydraulic system is between 35 and 55 degrees Celsius. Once the temperature rises above 60 degrees Celsius, the system working efficiency of the hydraulic system will be greatly reduced, and equipment failures will continue to occur, resulting in serious equipment stability. decline, the normal operation of machinery and 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. In winter, especially in severe cold areas, the oil temperature is low, the oil temperature inside the hydraulic system is low, the viscosity is high, the fluidity is poor, and the work efficiency is also poor. Forcibly operating in this environment wil...

Claims

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Application Information

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IPC IPC(8): G05D23/20
CPCG05D23/20
Inventor 黄晓军
Owner 江苏金荣森制冷科技有限公司
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