Safe working method of fan in dangerous place and fan starting system
A technology for safe work and dangerous places, applied in the direction of machine/engine, mechanical equipment, pump control, etc., can solve the problem of expanding disasters, and achieve the effect of avoiding the expansion of disasters
Pending Publication Date: 2019-06-18
SHANGHAI LIANYING ENVIRONMENTAL PROTECTION TECH CO LTD
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Problems solved by technology
In a certain situation, the fan needs to be restricted from starting to avoid spreading the disaster, but the existing products lack this link
Method used
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[0023] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0024] like figure 1 As shown, the present invention is a method for safe working of a fan in a hazardous location, including:
[0025] S1: When the sensor module 1 and the controller module detect changes in temperature, gas concentration and time, they send a stable and continuous electrical signal to the main control module 3;
[0026] S2: The signal processing module 31 of the main control module 3 receives the electrical signal of the sensor module 1 for processing and then sends it to the CPU 32, and the CPU 32 performs analysis and comparison according to preset conditions;
[0027] S3: When the preset temperature value, gas concentration value or ...
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The invention discloses a safe working method of a fan in a dangerous place and a fan starting system. The method includes the following steps that a sensor module and a controller module send stableand lasting electric signals to a main control module when detecting the temperature change, the gas concentration change and the time change; a signal processing module of the main control module sends signals to a CPU after receiving and processing the electric signals of the sensor module, and the CPU performs analysis and comparison according to preset conditions; if the preset temperature value, gas concentration value and time are reached, a starting instruction is sent to the fan through a driving module, and the fan is started and begins work; and if the CPU detects that the temperature exceeds the warning temperature, the fan is controlled to stop working. The method and the system have the advantages and the beneficial effects as follows: abnormal rise of the temperature of storage space is inevitably accompanied by chemical reaction or change of the external environment, expansion of disasters can be caused by ventilation at the moment, and expansion of disasters can be avoided through presetting of requirements of temperature, gas concentration and time limits by the aid of a processor.
Description
technical field [0001] The invention relates to the field of fan safety work, in particular to a method for safe work of a fan in a dangerous place and a fan starting system. Background technique [0002] Fan is a kind of power equipment used for ventilation. When the fan is working, gas flow will occur in the space where it works, which can be used to cool down, transport gas and accelerate diffusion. In ventilated pharmaceutical reagent cabinets or small warehouses, the main purpose of using fans is to update the air and expel polluted air. [0003] In order to reduce labor intensity and reduce work pressure, automatic control is generally used for fans. The principle of temperature control is that the temperature sensor receives the temperature change and generates an electrical signal. After the electrical signal is analyzed and compared by the processor, the fan working signal is given, and the fan starts to work; the processor stops the signal output, and the fan stop...
Claims
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IPC IPC(8): F04D27/00
Inventor 南逸
Owner SHANGHAI LIANYING ENVIRONMENTAL PROTECTION TECH CO LTD