CN102709823B - Sound-insulation ventilation system for transformer substation - Google Patents

Abstract

The invention relates to a sound insulation and ventilation system for a substation, which includes an air intake box, an exhaust box, a ventilation pipeline, a fan and a sound insulation door. The exhaust box and the air intake box communicate with the inside and outside of the substation, and the The fan is arranged in the substation, and is connected to the exhaust box and the intake box through the ventilation pipeline. The sound insulation door is arranged on the wall of the substation, and the wall of the substation is provided with a layer of sound-absorbing material. Compared with the prior art, the invention has the advantages of stable ventilation performance, good sound insulation effect and the like.

Description

A soundproof ventilation system for a substation

technical field

The invention relates to a substation ventilation system, in particular to a ventilation system which can effectively reduce the environmental noise of the substation.

Background technique

With the development of the power system, the load of transformers in small substations in various places has increased, and the electromagnetic noise generated by it has gradually increased, and the noise of transformers has shown instability and fluctuations. The noise level is relatively low when it is lower than the working condition, and the general noise level is higher when the load is high, the maximum value can reach more than 75Db(A), and it belongs to the middle and low frequency noise. From the perspective of noise control, the higher the noise frequency, the more difficult it is to control. Low-frequency noise has a long wavelength, low distance attenuation rate, and is not easy to be absorbed, so that the noise is transmitted to the surrounding walls in the transformer room and reflected to form acoustic mixing and superimposition. Finally, the external influence is formed through the wall and the ventilation system. At present, the ventilation system commonly used is the natural convection method to cool the heat generated by the transformer operation. When the outdoor temperature is high, the heat generated by the transformer operation cannot be effectively dissipated, causing the room temperature to rise, and the transformer operates at a higher temperature. The environment is not conducive to long-term safe operation.

Contents of the invention

The purpose of the present invention is to provide a ventilation system that can effectively reduce the environmental noise of the substation in order to overcome the above-mentioned defects in the prior art.

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

A sound insulation and ventilation system for a substation, comprising an air intake box, an exhaust box, a ventilation pipeline, a fan and a sound insulation door, the exhaust box and the air intake box communicate with the inside and outside of the substation, and the fan device In the substation, the exhaust box and the air intake box are connected through the ventilation pipeline, the sound insulation door is arranged on the wall of the substation, and the wall of the substation is provided with a sound-absorbing material layer.

The fan is provided with an automatic temperature control device, and the automatic temperature control device automatically controls the fan switch according to the temperature in the substation.

The automatic temperature control device includes a control host and a temperature control switch. The control host is provided with a remote control terminal for local control or remote control. When the temperature is greater than or equal to 40°C, the temperature control switch is closed and the fan is turned on. ; When the temperature is lower than 38°C, the temperature control switch is turned off and the fan is turned off.

The bottom of the fan is provided with a vibration isolator, and the fan is fixed on the ground through the vibration isolator, and the air inlet of the fan is connected with the ventilation pipeline through a flexible pipe.

The side wall of the ventilation pipeline is provided with a sound-absorbing material layer, and the outlet of the ventilation pipeline is provided with a muffler.

The air intake box is arranged on the side wall of the substation, and the exhaust box is arranged on the wall at the top of the substation.

The air intake box and the exhaust box are connected to the wall of the substation through a sound insulation connector.

The air intake box includes a sound insulation box, a connecting flange and an air inlet. The sound insulation box is embedded on the wall of the substation, and an air inlet channel is arranged in the sound insulation box. The air inlet channel The connecting flange communicates with the ventilation pipeline, and the air inlet is located outside the wall of the substation, and is connected to the air inlet channel under the sound insulation box.

The exhaust box includes a sound insulation box, a connecting flange and an exhaust port. The sound insulation box is embedded on the wall of the substation, and an air outlet channel is provided in the sound insulation box. The air outlet channel The connecting flange communicates with the ventilation pipeline, and the exhaust port is located outside the wall of the substation, and communicates with the air outlet channel under the sound insulation box.

The soundproof door includes a left door panel and a right door panel. Both the left door panel and the right door panel are composed of cold-rolled steel plates, gypsum boards, fire-proof and sound-absorbing cotton and cold-rolled perforated plates stacked in sequence. Both the door panel and the right door panel are spot-welded with sealing strips to seal the door seam from the inside and outside of the soundproof door.

Compared with the prior art, the present invention reduces the noise generated in the substation by setting various sound insulation and noise reduction devices in the ventilation system, and at the same time improves the sound insulation capability of the ventilation system, so that the noise transmitted to the outside of the substation through the ventilation system In addition, the fan is controlled by the automatic temperature control device, which can enhance the cooling capacity of the ventilation system, prevent the transformer from working in a high temperature environment, and improve the safety of the substation operation.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the structural representation of air intake box;

Fig. 3 is the structural representation of exhaust box;

Fig. 4 is the structural representation of acoustic door;

FIG. 5 is an enlarged view at point A in FIG. 4 .

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example

As shown in FIG. 1 , a sound insulation and ventilation system for a substation includes an air intake box 1 , an exhaust box 2 , a ventilation pipeline 6 , a fan 3 and a sound insulation door 4 .

The exhaust box 2 and the air intake box 1 are used to connect the inside and outside of the substation, wherein the air intake box 1 is generally set on the wall on the side of the substation, and the exhaust box 2 is generally set on the wall on the top of the substation. The acoustic connector is fixed to the wall of the substation to reduce noise transmission. The fan 3 is arranged in the substation, and is connected to the exhaust box 2 and the air intake box 1 through the ventilation pipeline 6 .

The specific structure of the air intake box 1 is shown in Figure 2, including a sound insulation box 11, a connecting flange 12 and an air inlet 13, the sound insulation box 11 is embedded on the wall of the substation, and the sound insulation box 11 is equipped with There is an air inlet channel, which communicates with the ventilation pipeline 6 through the connecting flange 12, and the air inlet 13 is located outside the wall of the substation, and is connected to the air inlet channel 13 under the sound insulation box 11. The structure of the exhaust box 2 is shown in Figure 3, similar to the air intake box 1, including a sound insulation box 21, a connecting flange 22 and an exhaust port 23, the sound insulation box 21 is embedded on the wall of the substation, The sound insulation box 21 is provided with an air outlet channel, which communicates with the ventilation pipeline 6 through the connecting flange 22, and the exhaust port 23 is located outside the wall of the substation, and is connected to the air outlet channel from the bottom of the sound insulation box 21 twenty three. Since the air inlet 13 and the air outlet 14 are only provided under the sound insulation box, it can effectively prevent the noise emitted by the substation equipment 5 from being transmitted to the outside of the substation, so that the sound insulation effect is greatly improved.

The fan 3 is equipped with an automatic temperature control device. The automatic temperature control device includes a control host and a temperature control switch. The control host is equipped with a remote control terminal, which can be controlled locally or remotely. When closed, fan 3 is turned on; when the temperature is lower than 38°C, the temperature control switch is turned off, and fan 3 is turned off. Through the adjustment of the automatic temperature control device, the cooling capacity of the ventilation system can be enhanced, preventing the substation equipment 5 from working in a high-temperature environment, and improving the safety of the substation operation. The bottom of the fan 3 is provided with a vibration isolator, and the vibration isolator is fixed on the ground to reduce the vibration transmitted to the ground. The air inlet of the fan 3 is connected to the ventilation pipeline through a flexible pipe, and the sound insulation is achieved by reducing the transmission of vibration. purpose of noise. The side wall of the ventilation pipeline 6 is provided with a sound-absorbing material layer, and a muffler is provided at its outlet.

The specific structure of the soundproof door 4 is shown in Figure 4, including the left door panel 41 and the right door panel 42, the left door panel and the right door panel are all made of cold-rolled steel plates, gypsum boards, fire-proof and sound-absorbing cotton and cold-rolled door panels stacked in sequence. Composed of perforated panels, it can maximize the sound insulation effect. As shown in FIG. 5 , both the left door panel 41 and the right door panel 42 are spot-welded with sealing strips 43 to seal the door seams from the inside and outside of the sound insulation door 4 to further improve the sound insulation effect of the sound insulation door.

Claims (7)

1. the sound-insulation ventilation system for transformer station, it is characterized in that, comprise inlet box, fumer, air pipeline, blower fan and soundproof door, it is inside and outside that described fumer and inlet box are communicated with transformer station, described blower fan is located in transformer station, and connecting fumer and inlet box by air pipeline, described soundproof door is located on the body of wall of transformer station, and the body of wall of transformer station is provided with sound-absorbing material layer;

Described inlet box is located on the body of wall of transformer station side, and described fumer is located on the body of wall at transformer station top;

Described inlet box comprises sound insulation casing, adpting flange and air inlet, described sound insulation casing is embedded on the body of wall of transformer station, air intake passage is provided with in sound insulation casing, this air intake passage is communicated with air pipeline by adpting flange, the body of wall that described air inlet is positioned at transformer station is outside, is communicated with air intake passage by below sound insulation casing;

Described fumer comprises sound insulation casing, adpting flange and exhaust outlet, described sound insulation casing is embedded on the body of wall of transformer station, air-out passage is provided with in sound insulation casing, this air-out passage is communicated with air pipeline by adpting flange, the body of wall that described exhaust outlet is positioned at transformer station is outside, is communicated with air-out passage by below sound insulation casing.

2. a kind of sound-insulation ventilation system for transformer station according to claim 1, it is characterized in that, described blower fan is provided with thermostat, and this thermostat is according to temperature automatic control fan switch in transformer station.

3. a kind of sound-insulation ventilation system for transformer station according to claim 2, it is characterized in that, described thermostat comprises main control system and temperature detect switch (TDS), described main control system is provided with remote control terminal, this locality can be carried out control or Long-distance Control, when temperature is more than or equal to 40 DEG C, temperature detect switch (TDS) closes, and opens blower fan; When temperature is less than 38 DEG C, temperature detect switch (TDS) disconnects, and closes blower fan.

4. a kind of sound-insulation ventilation system for transformer station according to claim 1, it is characterized in that, the bottom of described blower fan is provided with vibration isolator, is fixed on the ground by this vibration isolator, and the air inlet of blower fan is connected with air pipeline by hose adapter.

5. a kind of sound-insulation ventilation system for transformer station according to claim 1, it is characterized in that, the sidewall of described air pipeline is provided with sound-absorbing material layer, and the exit of air pipeline is provided with muffler.

6. a kind of sound-insulation ventilation system for transformer station according to claim 1, is characterized in that, described inlet box and fumer pass through the wall connecting of sound insulation connector and transformer station.

7. a kind of sound-insulation ventilation system for transformer station according to claim 1, it is characterized in that, described soundproof door comprises left side door-plate and right side door-plate, described left side door-plate and right side door-plate form by the cold-rolled steel sheet be cascading, plasterboard, fire prevention silencing cotton and cold rolling porous plate, left side door-plate and right side door-plate are all put and are welded with sealing strip, from soundproof door inner side and outer side sealing crack between a door and its frame.