Temperature and humidity control ventilation
A temperature and humidity control and ventilation device technology, applied in non-electric variable control, control/regulation systems, and simultaneous control of multiple variables, etc., can solve the problems of reduced insulation of terminal boxes, corrosion of terminal boxes, and easy condensation of moisture, etc. Achieve the effect of ensuring reliable operation, prolonging service life and reducing risks
Active Publication Date: 2016-03-30
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0002] In the power industry, the connection between secondary equipment and primary equipment needs to be realized through the transition of the local terminal box, and the environment of the local terminal box is harsh, and the long-term rain or high temperature weather causes a large temperature difference between the inside and outside of the terminal box, so moisture It is easy to condense, which will cause the internal corrosion of the terminal box if it is mild, and it will easily cause the internal insulation of the terminal box to decrease, which will cause the grounding of the DC system of the power system, which will affect the normal operation of the power equipment and bring great troubles to the operation and maintenance personnel.
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[0025] Embodiments of the present invention are further described below in conjunction with accompanying drawings:
[0026] Such as figure 1 As shown, the temperature and humidity control ventilation device of the present invention includes a programmable logic controller, the programmable logic controller is connected to a power supply, and also includes a heating device, a ventilation device, an external temperature monitoring device, an internal temperature and humidity monitoring device, and an external temperature The monitoring device and the internal temperature and humidity monitoring device are respectively connected to the signal input end of the programmable logic controller through signal lines, and the control output end of the programmable logic controller is connected to the heating device and the ventilation device through a relay. Through real-time monitoring of the temperature difference between the inside and outside of the terminal box and the internal humi...
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The invention relates to a temperature and humidity control ventilation device and belongs to the field of temperature and humidity control ventilation. The temperature and humidity control ventilation device comprises a programmable logic controller connected with a power supply, a heating device, a ventilation device, an outer temperature monitoring device and an inner temperature and humidity monitoring device. The outer temperature monitoring device and the inner temperature and humidity monitoring device are connected with signal input ends of the programmable logic controller through signal wires respectively. Control output ends of the programmable logic controller are connected with the heating device and the ventilation device through relays. By monitoring temperature different inside and outside a terminal box and humidity in the terminal box in real time, inner and outer air convection is started automatically, condensation in the terminal box is avoided, terminal box corrosion and the danger that an electric system is connected to the ground through a direct-current system are avoided, and accordingly safe and reliable operation of the electric system is guaranteed.
Description
technical field [0001] The invention relates to a temperature and humidity control ventilation device, which belongs to the field of temperature and humidity control ventilation. Background technique [0002] In the power industry, the connection between secondary equipment and primary equipment needs to be realized through the transition of the local terminal box, and the environment of the local terminal box is harsh. Long-term rain or high temperature weather causes a large temperature difference between the inside and outside of the terminal box, so moisture It is easy to condense, which will cause corrosion inside the terminal box if it is light, and it will easily cause the insulation inside the terminal box to be reduced when it is serious, forming the grounding of the DC system of the power system, which affects the normal operation of the power equipment and brings great trouble to the operation and maintenance personnel. Contents of the invention [0003] Based o...
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IPC IPC(8): G05D27/02H02B1/56
Inventor 王涛
Owner STATE GRID CORP OF CHINA