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Preheating control system and control method

A technology of control system and control method, which is applied in the direction of temperature control using electric mode, which can solve the problems of manual start and unsatisfactory machine

Active Publication Date: 2019-06-07
ATLAS COPCO WUXI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the power supply of most diesel engine systems mainly depends on the battery power supply. If it does not run for a long time, it is necessary to switch the main power supply and run it at regular intervals to ensure the power of the battery, so that the machine can be started normally next time; If the temperature is low, the machine may need to manually start the heater in advance, and often needs to be started 2 to 4 times, or even more; but these situations cannot meet the requirements of the machine's 24-hour emergency backup and a quick start

Method used

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Experimental program
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Embodiment 1

[0031] refer to figure 1, which shows the schematic diagram of the overall principle and structure of the preheating control system proposed in this embodiment. This control system can be applied to machines that need to be preheated to start under low temperature conditions. Such machines start when the temperature is low , it is necessary to manually activate the preheater to preheat the machine in advance, and the standard products of the preheating system use manual plus timing control, but since the machine is an emergency standby machine, it is impossible to predict when the machine needs to be started. Manual cannot meet the requirements. Therefore, automatic preheating of such machines is realized in this embodiment, and a preheating control system is proposed, which includes a heating unit 100 , a detection unit 200 and a control unit 300 . Specifically, the heating unit 100 is used to heat the cooling medium in the heated equipment A; the detection unit 200 is conne...

Embodiment 2

[0038] refer to figure 2 , which shows a schematic structural diagram of the overall principle of adding the automatic charging unit 500 to the control system in the first embodiment. The system also includes an automatic charging unit 500, which includes a charging device 501 and a power storage device 502; the monitoring unit 400 controls the charging device 501 to charge or switch to the power storage device 502 by monitoring the operating status of the control system and sending it to the control unit 300 Provide power to the power storage device 502 . It is not difficult to understand that the charging device 501 and the power storage device 502 may be a charger and a battery respectively.

[0039] Further, the automatic charging unit 500 includes a charging device 501 and a power storage device 502. The charging device 501 is connected to the control unit 300, and the power storage device 502 is connected to the monitoring unit 400. The monitoring unit 400 can monitor ...

Embodiment 3

[0042] Based on the preheating control system proposed in the above embodiments, a corresponding preheating control method is proposed. But at the same time, the original way of manually opening the preheater for heating is retained, which is convenient for maintenance and on-site manual inspection, and meets the emergency start of the machine according to user needs in a low temperature environment. Specifically, the preheating control method includes a heating unit 100 and a heating device A. The heating device A refers to the preheating object, that is, the above-mentioned diesel engine. The heating unit 100 refers to a preheater or a heater. The method for coordinating with time control also specifically includes the following steps,

[0043] The detection unit 200 detects the cooling medium temperature T0 information of the heated equipment A in real time, and sends it to the control unit 300 for comparison and judgment with the preset temperature limit T, and the control...

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Abstract

The invention discloses a preheating control system. The preheating control system comprises a heating unit, a detecting unit, and a control unit; the heating unit is used for heating a cooling mediumin a heated device; the detecting unit is connected with the heating unit and is used for detecting the temperature information of the cooling medium, and transmitting the temperature information tothe control unit; and the control unit is connected with the heating unit and the detecting unit and is used for receiving the temperature information and controlling the startup or stop of the heating unit. The preheating control system of the invention can stand by for 24 hours; the temperature of a cooling liquid can be detected in real time; the operation of the heating device is controlled through the cooperation of temperature control and auxiliary timing control; and a heater can be protected on the basis of standby time control, so that the heater will not operate and stop frequently.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to a control system for diesel engine preheating and a preheating control method. Background technique [0002] At present, the power supply of most diesel engine systems mainly depends on the battery power supply. If it does not run for a long time, it is necessary to switch the main power supply and run it at regular intervals to ensure the power of the battery, so that the machine can be started normally next time; If the temperature is low, the machine may need to manually start the heater in advance, and often needs to be started 2 to 4 times, or even more; but these situations cannot meet the requirements of the machine's 24-hour emergency backup and a quick start. Therefore, an automatic charging system and an automatic preheating system are designed according to the customer's special use requirements and working conditions as well as the objective conditions of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/19
Inventor 袁建清曾庭荣
Owner ATLAS COPCO WUXI COMPRESSOR