CN103107490B - The method of side air intake indoor substation gas distribution system and ventilation heat exchange thereof - Google Patents

Abstract

The invention discloses a side-inlet air distribution system for an indoor substation, which comprises an air inlet arranged on the side of the indoor substation, an air outlet arranged above the indoor substation, a fan arranged at the air outlet, and a ventilation duct and the air distribution box, the ventilation duct is communicated with the air inlet, the air distribution box is communicated with the ventilation duct, and the air outlet of the air distribution box is arranged below the heat sink of the transformer; according to the characteristics of the substation in the form of side air intake, the present invention By changing the flow route of the cold air, effectively organizing the air intake to cool the heat sink of the transformer, and improving the heat exchange efficiency of the air intake, the ventilation volume can be greatly reduced, the cross-section of the vent hole can be reduced, the output of the induced draft fan can be reduced, and the environment can also be reduced. The emission of noise makes the indoor substation more green and environmentally friendly; and fully considers the needs of maintenance in the substation, which is convenient for installation and disassembly.

Description

Air distribution system and ventilation and heat exchange method of side air-inlet indoor substation

technical field

The invention belongs to the field of comprehensive control of ventilation, heat exchange and noise of a side-inlet type indoor substation, and particularly relates to a side-inlet type indoor substation air distribution system and a method for ventilation and heat exchange thereof.

Background technique

At present, in some indoor substation transformer room ventilation and heat exchange designs limited by geographical location, the heat exchange method of side air inlet and upper air outlet on the wall is adopted. The cold air entering the transformer room lacks effective organization and dedicated facilities to guide , the air intake is often discharged from the upper air outlet along the gap between the wall and the equipment, failing to conduct effective heat exchange with the transformer that needs to be cooled, resulting in low ventilation and heat exchange efficiency, large heat exchange air volume, and the air outlet leads to The fan consumes a lot of energy. In summer, when the temperature is high and the load is heavy, the main transformer of the indoor substation often has potential safety hazards due to poor ventilation and heat transfer. In order to solve this problem, the operation and management personnel of the power supply department have to open the door of the indoor substation to increase the heat dissipation. The problem of transformer noise nuisance complaints has also arisen.

Contents of the invention

In view of this, the object of the present invention is to provide a side-inlet air distribution system for indoor substations, which solves the above-mentioned defects of the prior art.

The purpose of the present invention is achieved through the following technical solutions:

A side-inlet air distribution system for an indoor substation, comprising an air inlet arranged on the side of the indoor substation, an air outlet arranged above the indoor substation, and a fan arranged at the air outlet, as well as a ventilation duct and an air distribution box, The ventilation duct is communicated with the air inlet, the air distribution box is communicated with the ventilation duct, and the air outlet of the air distribution box is arranged below the heat sink of the transformer;

Further, the ventilation duct is a retractable drainage tube;

Further, both ends of the ventilation duct are detachably connected to the air inlet and the air distribution box respectively through fixed bases, and filter screens are provided at both ends of the ventilation duct;

Furthermore, the air outlet of the air distribution box is in the shape of strips or round holes.

At the same time, the invention also discloses a ventilation and heat exchange method for the air distribution system of a side-inlet indoor substation: start the fan installed at the air outlet above the substation, the cold air enters from the air inlet, passes through the ventilation pipe and the air distribution box in turn, The air outlet of the air distribution box is blown from below to the heat sink of the transformer. The cold air and the heat sink of the transformer become hot air after heat exchange. The hot air is drawn out by the fan at the air outlet above the substation to realize ventilation and heat exchange.

The beneficial effects of the present invention are: according to the characteristics of the substation in the form of side air intake, the present invention effectively organizes the air intake to cool down the cooling fins of the transformer by changing the flow route of the cold air according to the characteristics of the side air intake type substation, improves the heat exchange efficiency of the intake air, and can greatly reduce the ventilation volume. Reduce the cross-section of the vent, reduce the output of the induced draft fan, and reduce the emission of environmental noise at the same time, making the indoor substation more green and environmentally friendly; and fully considering the needs of maintenance in the substation, it is convenient for installation and disassembly.

Other advantages, objects and features of the present invention will be set forth in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the investigation and research below, or can be obtained from Taught in the practice of the present invention. The objects and other advantages of the invention may be realized and attained by the following specification.

Description of drawings

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is prior art schematic diagram;

Fig. 2 is a schematic diagram of the present invention.

detailed description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

As shown in the figure, a side air-inlet indoor substation air distribution system includes an air inlet 1 arranged on the side of the indoor substation, an air outlet 2 arranged above the indoor substation, and a fan arranged at the air outlet (Fig. not shown in), also includes a ventilation duct 3 and an air distribution box 4, the ventilation duct 3 communicates with the air inlet 1, the air distribution box 4 communicates with the ventilation duct 3, and the air outlet of the air distribution box is arranged on the transformer Below the heat sink 5.

In this embodiment, according to the characteristics of the substation in the form of side air intake, by changing the flow route of the cold air, effectively organizing the air intake to implement focused cooling on the heat sink 5 of the transformer, improving the heat exchange efficiency of the intake air, and greatly reducing the ventilation volume and reducing the ventilation rate. The cross-section of the outlet reduces the output of the induced draft fan, and at the same time reduces the emission of environmental noise, making the indoor substation more green and environmentally friendly.

In this embodiment, the ventilation pipe is a retractable drainage pipe; the probability of contact between the cold air and the heat sink of the transformer is increased to improve the heat exchange efficiency, and its scalability is convenient for maintenance, and it occupies a small space for easy maintenance.

In this embodiment, both ends of the ventilation duct are detachably connected to the air inlet and the air distribution box through fixed bases, and the two ends of the ventilation duct are provided with filter screens, which are easy to install and disassemble, and can effectively prevent the ventilation duct from being blocked.

In this embodiment, the air outlet of the air distribution box is strip-shaped. Of course, the air outlet of the air distribution box can also be selected according to the distribution of the transformer cooling fins 5. Different forms of air outlets, such as round holes, in a word, let the air distribution box The air outlet of the air box is located just below the heat sink, and the size is appropriate to improve heat exchange efficiency.

In addition, this embodiment also discloses a ventilation and heat exchange method for the air distribution system of a side-inlet indoor substation: start the fan installed at the air outlet above the substation, the cold air enters from the air inlet 1, and passes through the ventilation pipe 3 and the distribution system in turn. The air box 4 is blown from below to the transformer heat sink 5 through the air outlet of the air distribution box. After heat exchange between the cold air and the transformer heat sink 5, it becomes hot air. hot.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements, without departing from the spirit and scope of the technical solution, should be included in the scope of the claims of the present invention.

Claims (3)

1. side air intake indoor substation gas distribution system, comprise be arranged on indoor substation side air inlet, be arranged on the air outlet above indoor substation and be arranged on the blower fan at air outlet place, it is characterized in that: also comprise air pipe and cloth gas tank, described air pipe and air inlet UNICOM, described cloth gas tank is communicated with air pipe, and the air outlet of described cloth gas tank is arranged on the below of radiating fin of transformer; Described air pipe two ends are by fixed pedestal respectively with air inlet with cloth gas tank is detachable is connected, and described air pipe two ends are provided with screen pack; The air outlet of described cloth gas tank is strip or circular hole.

2. side according to claim 1 air intake indoor substation gas distribution system, is characterized in that: described air pipe is telescopic drainage tube.

3. according to the ventilation heat exchange method of side air intake indoor substation gas distribution system described in any one in claim 1-2, it is characterized in that: start the blower fan being arranged on air outlet place above transformer station, cold wind enters from air inlet, successively by air pipe and cloth gas tank, air outlet via cloth gas tank blows to radiating fin of transformer from below, cold wind and radiating fin of transformer become hot blast after heat exchange, and hot blast is drawn out of by the blower fan at air outlet place above transformer station thus is realized ventilation heat exchange.