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Precise temperature control system with all-weather wide temperature zone

A temperature control system, all-weather technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of poor economy and reliability, and achieve automatic operation, wide temperature control range, flexible and convenient use Effect

Inactive Publication Date: 2012-01-18
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not economical and reliable when cooling at low ambient temperatures

Method used

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  • Precise temperature control system with all-weather wide temperature zone
  • Precise temperature control system with all-weather wide temperature zone
  • Precise temperature control system with all-weather wide temperature zone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] see figure 1 , the system composition of the all-weather wide temperature zone precision temperature control system in this embodiment is:

[0032] The cold and heat source system is composed of the mechanical refrigeration unit U1, the air-cooled cooling unit U2 and the electric heating unit U3.

[0033] Set the forced closed refrigerant cycle driven by the liquid pump U6: In the refrigerant circuit, the refrigerant in the accumulator U5 passes through the liquid pump U6, the heat sink U7 and the three-way valve U8 in turn, and then flows through the outlet port of the three-way valve U8. One of the two parallel branches returns to the liquid receiver U5 through the electrothermal module U3 in the main circuit. One of the two parallel branches is the mechanical refrigeration unit U1 through the outlet A of the three-way valve, and the other is through the three-way valve. The air-cooled cooling unit U2 at outlet B; among them, the electric heating unit U3 is connected...

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Abstract

The invention discloses a precise temperature control system with an all-weather wide temperature zone, which is characterized in that the system comprises a cold and hot source module, a coolant loop and a measurement and control system, wherein the cold and hot source module is composed of a mechanical refrigeration unit, an air cooling refrigeration unit and an electric heating unit; the coolant loop takes a liquid pump as a drive source for coolant recycle, the coolant in a liquid accumulator passes through the liquid pump, a heat sink with a microchannel and a three-way valve in turn, passes through one of two parallel branches at the outlet end of the three-way valve, and then flows back to the liquid accumulator through an electric heating module of a main loop, and one path of thetwo parallel branches is a mechanical refrigeration unit channel passing through the outlet A of the three-way valve, and the other path is an air cooling refrigeration unit channel passing through the outlet B of the three-way valve; and in the system, the wide temperature zone within a range of minus 60 DEG C-70 DEG C is divided into a refrigeration zone, an air cooling zone and a heat supply zone, and the measurement and control system carries out zone control to enable the temperature control system to run in a refrigeration mode, an air cooling mode and a heat supply mode according to the real-time running states. The temperature control system is used for precise temperature control of all-weather wide temperature zone operating environment.

Description

technical field [0001] The invention relates to the technical field of refrigeration and man-machine environment engineering, in particular to a control system for precise temperature regulation applied in wide temperate climate conditions of -60 to 70°C. Background technique [0002] Electronic warehouses of airplanes and ships, motor vehicles, ships or vehicles with functions such as communication, monitoring, early warning, and guidance, and photoelectric systems such as laser devices, etc., usually have all-weather and wide temperature range work requirements, and often have heat flow Due to the characteristics of high density or large heat flow, man-machine environment control equipment must be used to provide a suitable working environment temperature to ensure its safe, reliable, efficient and accurate work; it even requires high temperature control accuracy and fast Cooling rate to improve the stability, reliability, accuracy, mobility and efficiency of its work. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B29/00F25B49/00
Inventor 王铁军江斌王正
Owner HEFEI UNIV OF TECH
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