Condensation removing device for hydroelectric generation secondary screen cabinet

Abstract

The invention discloses a hydroelectric generation secondary screen cabinet condensation removal device and belongs to the technical field of power grid power generation. The problem that an existing hydroelectric generation secondary screen cabinet is poor in dehumidification effect is solved. An environment temperature and humidity sensor is used for detecting temperature and humidity signals in a secondary screen cabinet; a heating resistance wire mesh is arranged on the inner surface of the side wall of the secondary screen cabinet, and an insulating layer is attached to the surface of a resistance wire of the resistance wire mesh; the moisture absorption layer is arranged on the inner side of the heating resistance wire mesh; the dehumidifier is used for dehumidifying the environment in the side wall of the secondary screen cabinet; the moisture absorption layer temperature and humidity sensor is used for detecting temperature and humidity signals of the moisture absorption layer, and the controller controls on-off and power of the heating resistance wire mesh according to the temperature and humidity signals collected by the moisture absorption layer temperature and humidity sensor. The controller is also used for controlling the on-off and power of the dehumidifier according to temperature and humidity signals collected by the environment temperature and humidity sensor. The method is mainly used for removing condensation of the hydroelectric generation secondary screen cabinet.

Description

Technical Field

[0001] The invention belongs to the technical field of power grid power generation. Background Art

[0002] The environment where hydropower generation is located is usually in a high humidity area, and the temperature difference is usually large, which often leads to condensation inside the secondary cabinet. As a result, the electrical components inside the cabinet rust, further reducing the insulation performance of the electrical components. This reduces the safe operation level of the cabinet and may even cause a fire in serious cases.

[0003] The existing method of dehumidification is usually heating, which has a poor dehumidification protection effect. If a rotary dehumidifier is used to absorb the moisture in the air in the screen cabinet, the moisture on the wheel is taken away by heated dry air to condense the high-humidity air on the wheel, thereby achieving the purpose of dehumidification protection. However, the operating cost of this method is very high and the efficiency is low. Summary of the invention

[0004] The invention aims to solve the problem of poor dehumidification effect of the existing hydropower secondary screen cabinet, and now provides a condensation removal device for the hydropower secondary screen cabinet.

[0005] The condensation removal device for the secondary screen cabinet of the hydropower generation according to the present invention comprises an environmental temperature and humidity sensor, a controller, a dehumidifier, a moisture absorption layer temperature and humidity sensor, a heating resistor wire mesh and a moisture absorption layer;

[0006] The environmental temperature and humidity sensor is used to detect the temperature and humidity signals in the secondary screen cabinet and send the collected signals to the controller;

[0007] The heating resistance wire mesh is arranged on the inner surface of the side wall of the secondary screen cabinet, and the surface of the resistance wire of the heating resistance wire mesh is attached with an insulating layer;

[0008] The moisture absorbing layer is arranged on the inner side of the heating resistance wire mesh;

[0009] The dehumidifier is used to dehumidify the environment inside the side wall of the secondary screen cabinet;

[0010] The hygroscopic layer temperature and humidity sensor is used to detect the temperature and humidity signals of the hygroscopic layer and send the collected signals to the controller;

[0011] The controller is used to control the switch and power of the heating resistance screen according to the temperature and humidity signals collected by the moisture absorption layer temperature and humidity sensor;

[0012] It is also used to control the switch and power of the dehumidifier according to the temperature and humidity signals collected by the ambient temperature and humidity sensor.

[0013] Furthermore, the present invention also includes a wireless communication circuit, and the controller sends the received temperature and humidity signals through the wireless communication circuit.

[0014] The hygroscopic layer of the present invention can quickly absorb water droplets on the side wall of the secondary screen cabinet. When the humidity is high, the controller controls the resistance wire to heat, so that the water in the hygroscopic layer evaporates, and then the water vapor in the environment is removed by the dehumidifier, thereby achieving rapid dehumidification and effectively ensuring the dehumidification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a block diagram of the device principle of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0017] Specific implementation method 1: refer to Figure 1 Specifically describing this embodiment, the condensation removal device for the secondary screen cabinet of a hydropower generation device described in this embodiment includes an environmental temperature and humidity sensor 2, a controller 3, a dehumidifier 4, a hygroscopic layer temperature and humidity sensor 5, a heating resistor screen 6 and a hygroscopic layer 7;

[0018] The environmental temperature and humidity sensor 2 is used to detect the temperature and humidity signals in the secondary screen cabinet and send the collected signals to the controller 3;

[0019] The heating resistor wire mesh 6 is arranged on the inner surface of the side wall of the secondary screen cabinet, and the surface of the resistance wire of the heating resistor wire mesh 6 is attached with an insulating layer;

[0020] The moisture absorbing layer 7 is arranged on the inner side of the heating resistor wire mesh 6;

[0021] The dehumidifier 4 is used to dehumidify the environment inside the side wall of the secondary screen cabinet;

[0022] The hygroscopic layer temperature and humidity sensor 5 is used to detect the temperature and humidity signals of the hygroscopic layer 7 and send the collected signals to the controller 3;

[0023] The controller 3 is used to control the switch and power of the heating resistor screen 6 according to the temperature and humidity signals collected by the moisture absorption layer temperature and humidity sensor 5;

[0024] It is also used to control the switch and power of the dehumidifier 4 according to the temperature and humidity signals collected by the ambient temperature and humidity sensor 2.

[0025] Furthermore, the present invention also includes a wireless communication circuit 1 , and the controller 3 sends the received temperature and humidity signals through the wireless communication circuit 1 .

[0026] Furthermore, the present invention also includes an alarm circuit. The controller 3 compares the received temperature and humidity signals with the temperature threshold and the humidity threshold respectively. When either the temperature or the humidity is greater than the corresponding threshold, an alarm control signal is sent to the alarm circuit. The alarm circuit receives the alarm control signal to generate an audible and visual alarm.

[0027] The present invention adopts a hygroscopic layer to absorb water droplets on the side wall of the secondary screen cabinet, and arranges a resistance wire mesh between the side wall and the hygroscopic layer to achieve rapid absorption of water droplets in the side wall. When the moisture content in the hygroscopic layer is large, the resistance wire mesh is heated, which effectively achieves the absorption of water droplets on the side wall of the secondary screen cabinet and rapid evaporation and dehumidification.

[0028] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that the features described in conjunction with a single embodiment may be used in other described embodiments.

Claims

1. A condensation removal device for a secondary panel cabinet of a hydropower plant, characterized in that: It comprises an environmental temperature and humidity sensor (2), a controller (3), a dehumidifier (4), a moisture absorption layer temperature and humidity sensor (5), a heating resistance wire mesh (6) and a moisture absorption layer (7); The environmental temperature and humidity sensor (2) is used to detect the temperature and humidity signals in the secondary screen cabinet and send the collected signals to the controller (3); The heating resistance wire mesh (6) is arranged on the inner surface of the side wall of the secondary screen cabinet, and the surface of the resistance wire of the heating resistance wire mesh (6) is provided with an insulating layer; The moisture absorbing layer (7) is arranged on the inner side of the heating resistance wire mesh (6); The dehumidifier (4) is used to dehumidify the environment inside the side wall of the secondary screen cabinet; The hygroscopic layer temperature and humidity sensor (5) is used to detect the temperature and humidity signals of the hygroscopic layer (7) and send the collected signals to the controller (3); The controller (3) is used to control the switch and power of the heating resistance wire mesh (6) according to the temperature and humidity signals collected by the moisture absorption layer temperature and humidity sensor (5); It is also used to control the switch and power of the dehumidifier (4) according to the temperature and humidity signals collected by the environmental temperature and humidity sensor (2).

2. The condensation removal device for the secondary screen cabinet of hydropower generation according to claim 1 is characterized in that: It also includes a wireless communication circuit (1), and the controller (3) sends the received temperature and humidity signals through the wireless communication circuit (1).

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