Ventilation anti-corrosion system suitable for power distribution room

Abstract

The utility model relates to a ventilation anti-corrosion system suitable for a power distribution room. The ventilation anti-corrosion system comprises a main pipeline, an air dryer, a dew point sensor, a branch pipeline, a gas detector and a temperature and humidity detector. An air dryer and a dew point sensor are sequentially arranged on the main pipeline, the front end of the main pipeline is communicated with a compressed air source, and the rear end of the main pipeline extends into the power distribution room and is communicated with multiple groups of branch pipelines; each group of branch pipelines is a combined pipe body formed by splicing a plurality of air pipes, each group of branch pipelines are bent and then distributed on the three peripheral sides of the power distribution room door and window, the two corresponding air pipes in each branch pipeline are vertically distributed on the two sides of the power distribution room door and window in the width direction, air outlets are formed in the two air pipes respectively, and compressed air forms an air curtain after passing through the air outlets to cover the power distribution room door and window. According to the utility model, a dry and comfortable air environment in the power distribution room can be ensured, indoor and outdoor environments can be effectively isolated through the convection air curtain, harmful gas is prevented from entering the power distribution room, and normal operation of power distribution facilities is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution rooms, in particular to a ventilation and anti-corrosion system suitable for distribution rooms. Background Technique

[0002] The distribution room is a key part of the power supply system and also a storage place for power supply devices. A large number of distribution facilities such as distribution cabinets are arranged in the distribution room, and its importance in the entire power supply system is self-evident. The environment in the distribution room is required to be clean, and the ambient temperature should be maintained within the required range.

[0003] For a distribution room with a brick-concrete structure, its sealing is tight. With the opening and closing of doors and windows and the alternation of positive and negative pressures, there is an exchange of indoor and outdoor air, which in turn changes the environment in the distribution room. This will cause the following harms to the distribution facilities in the distribution room: 1. The indoor humidity is high, and condensation causes electrical short circuits; 2. The indoor environmental temperature changes, which is not conducive to the ventilation and heat dissipation of the distribution facilities.

[0004] Some distribution rooms are arranged at the production site and are extremely vulnerable to the influence of the surrounding environment. For example, there are harmful gases such as ammonia and hydrogen sulfide in the on-site chemical environment. This gas will enter the distribution room with the opening and closing of doors and windows, affecting the electronic components of the distribution facilities, such as the oxidation of copper bars, the blackening and rusting of the body, poor contact, and direct corrosion and fracture of the exposed parts of copper cables. Summary of the Invention

[0005] In order to solve the problems that the distribution room is easily affected by the surrounding environment and will cause harm to the distribution facilities, the utility model provides a ventilation and anti-corrosion system suitable for the distribution room, which can always isolate the internal environment and the external environment of the distribution room whether the doors and windows are open or closed, ensure that the environment in the distribution room is suitable, and can avoid affecting the distribution facilities.

[0006] To achieve the above object, the technical solution adopted by the utility model is:

[0007] A ventilation and anti-corrosion system suitable for a distribution room includes a main pipeline, an air dryer for drying compressed air, a dew point sensor for monitoring the dew point temperature of the compressed air, a branch pipeline, a gas detector for monitoring harmful gases in the distribution room, and a temperature and humidity detector for monitoring the ambient temperature in the distribution room;

[0008] The air dryer and the dew point sensor are sequentially arranged on the main pipeline to facilitate the drying of the compressed air. The front end of the main pipeline is connected to a compressed air source, and the rear end of the main pipeline extends into the distribution room and is connected to multiple groups of the branch pipelines. The branch pipelines are arranged at the positions of the doors and windows of the distribution room, and the outflow position of the compressed air is at the positions of the doors and windows of the distribution room, and then gradually diffuses throughout the distribution room;

[0009] Each group of the branch pipes is a combined pipe body assembled by multiple air pipes, which facilitates the assembly of the branch pipes. Each group of branch pipes is arranged around the three-week sides of the doors and windows of the power distribution room after being bent. The branch pipes only discharge air from both sides of the doors and windows of the power distribution room. Two corresponding air pipes in the branch pipes are vertically arranged on both sides in the width direction of the doors and windows of the power distribution room. Air outlets are respectively opened on the two air pipes. The air outlets face each other and are arranged in a staggered manner, which facilitates the counter-flow of compressed air. After passing through the air outlets, the compressed air forms an air curtain to cover the doors and windows of the power distribution room. The two air curtains are arranged in an overlapping manner, which is convenient for isolating the indoor and outdoor environments.

[0010] Furthermore, the air dryer is arranged outside the power distribution room to avoid the influence of equipment operation on the power distribution facilities in the power distribution room. The dew point sensor is arranged inside the power distribution room. A filtering unit is also provided on the main pipe between the air dryer and the dew point sensor. The filtering unit is arranged outside the power distribution room to facilitate the filtering and purification of the compressed air entering the power distribution room.

[0011] Furthermore, the filtering unit includes a filter cylinder, a primary filter screen, a high-efficiency filter screen, and an activated carbon filter screen. The filter cylinder is a cylindrical body with open ends at both ends. Along the flowing direction of the compressed air, the primary filter screen, the high-efficiency filter screen, and the activated carbon filter screen are sequentially arranged inside the filter cylinder, which is convenient for multi-stage purification of the compressed air. The above filter screens all include a filter screen body and a frame. When installing the filter screen, bolts are used to radially pass through the side wall of the filter cylinder from the outside of the filter cylinder to connect the frame, so as to realize the installation of the filter screen.

[0012] Furthermore, the number of air pipes in each group of the branch pipes is three. The three air pipes are connected and combined into an inverted "U" shape and surround the three-week sides of the doors and windows of the power distribution room. The three air pipes are respectively a three-way pipe and two straight pipes. The three-way pipe is arranged above the doors and windows of the power distribution room. The three-way pipe is connected upward to the main pipe to facilitate the introduction of compressed air into the branch pipes. An opening and closing valve is arranged between the three-way pipe and the main pipe to facilitate the on-off control of the compressed air. The three-way pipe is connected downward to the two straight pipes to facilitate the uniform supply of air to the straight pipes. The two straight pipes are vertically arranged on both sides of the doors and windows of the power distribution room. The ends of the straight pipes are closed and only discharge air from the air outlets.

[0013] Furthermore, the air outlet is arranged on the straight pipe. The air outlet is a slender narrow slit structure. The air outlets are arranged along the axial direction of the straight pipe to facilitate the formation of an air curtain through the air outlets. A deflector for restricting the direction of the air outlet is also arranged on the straight pipe. The deflector extends along the tangential direction of the straight pipe. The deflector is parallel to the wall of the power distribution room to ensure the continuous and stable formation of the air curtain.

[0014] Through the above technical solutions, the beneficial effects of the present utility model are:

[0015] The structure of the utility model is reasonably designed. On the premise of ensuring the sealing of the distribution room, compressed air is introduced into the distribution room, and the compressed air is promoted to diffuse in the entire distribution facility environment to maintain an appropriate temperature inside the distribution room and keep the distribution room running reliably. It avoids the short circuit of the distribution facilities caused by moisture, and can also prevent corrosive gases from entering the distribution room to corrode copper cables, cable lugs and copper busbars. It solves the damage of impurities in the gas to the electronic components in the distribution facilities under complex environments and ensures the power consumption safety.

[0016] The utility model arranges branch pipes at the positions of the doors and windows of the distribution room. The branch pipes are connected to the main pipe through opening and closing valves, which is convenient to introduce compressed air into the branch pipes. Two air outlets are opened on the branch pipes, and the air outlets are matched with flow guiding plates to ensure that the compressed air is ejected at a high speed in the form of an air curtain and covers the entire doors and windows of the distribution room. The two air outlets form two layers of air curtains, which can effectively isolate the indoor and outdoor environments.

[0017] The utility model monitors the dew point temperature of the compressed air through a dew point sensor to ensure that the compressed air entering the distribution room is at 6-8 °C. Once the temperature is relatively low, it means that the water content of the compressed air is relatively high. At this time, the compressed air can be conveniently dried through an air dryer to ensure that the distribution facilities are in the required suitable environment, realizing the moisture-proof of the distribution facilities. The compressed air is also filtered and purified by a filtering unit to ensure the cleanliness of the air in the distribution room, ensure that the distribution facilities are not affected by dust and impurities, and can operate stably and safely. Brief Description of the Drawings

[0018] Figure 1 is one of the schematic diagrams of a ventilation and anti-corrosion system applicable to a distribution room of the utility model.

[0019] Figure 2 is the second schematic diagram of a ventilation and anti-corrosion system applicable to a distribution room of the utility model. The distribution room is not shown in the figure.

[0020] Figure 3 is the top view of the air outlet convection state of a ventilation and anti-corrosion system applicable to a distribution room of the utility model. The dotted arrows in the figure are the air curtain schematics.

[0021] Figure 4 is the sectional view of the filtering unit of a ventilation and anti-corrosion system applicable to a distribution room of the utility model.

[0022] The reference numerals in the drawings are: 1 main pipe, 2 air dryer, 3 dew point sensor, 4 branch pipe, 5 gas detector, 6 temperature and humidity detector, 7 distribution room doors and windows, 8 three-way pipe, 9 straight pipe, 10 opening and closing valve, 11 air outlet, 12 flow guiding plate, 13 filtering unit, 131 filter cartridge, 132 primary filter screen, 133 high-efficiency filter screen, 134 activated carbon filter screen. Detailed Description of the Preferred Embodiment

[0023] The following is a detailed description of the specific implementation manners of the present utility model in conjunction with the accompanying drawings:

[0024] As Figures 1 to 4 shown, a ventilation and anti-corrosion system applicable to a distribution room includes a main pipeline 1, an air dryer 2, a dew point sensor 3, branch pipelines 4, a gas detector 5 for monitoring harmful gases in the distribution room, and a temperature and humidity detector 6 for monitoring the ambient temperature in the distribution room.

[0025] The front end of the main pipeline 1 is connected to a compressed air source, and the compressed air source can be introduced into the main pipeline 1. An air dryer 2 and a dew point sensor 3 are sequentially arranged on the main pipeline 1. The air dryer 2 is arranged outside the distribution room and can dry the compressed air. The dew point sensor 3 is arranged inside the distribution room and is used to monitor the dew point temperature of the compressed air.

[0026] The rear end of the main pipeline 1 extends into the distribution room and is connected to multiple groups of branch pipelines 4. Specifically, after the rear end of the main pipeline 1 enters the distribution room, it is first connected to the dew point sensor 3, and then connected to multiple groups of branch pipelines 4. The branch pipelines 4 are arranged at the positions of the doors and windows 7 of the distribution room, that is, multiple groups of branch pipelines 4 respectively correspond to the doors and windows 7 of the distribution room one by one.

[0027] Each group of branch pipelines 4 is a combined pipe body assembled by multiple air pipes. Specifically, the number of air pipes in each group of branch pipelines 4 is three, and the three air pipes are connected and combined into an inverted "U" shape to surround the three-week sides of the doors and windows 7 of the distribution room, that is, each group of branch pipelines 4 is arranged in a bent manner on the three-week sides of the doors and windows 7 of the distribution room.

[0028] The three air pipes are respectively a three-way pipe 8 and two straight pipes 9. The three-way pipe 8 is arranged above the doors and windows 7 of the distribution room. The three-way pipe 8 is connected upward to the main pipeline 1. An opening and closing valve 10 is arranged between the three-way pipe 8 and the main pipeline 1 to control the on-off of the branch pipeline 4. The two corresponding air pipes in the branch pipeline 4 are vertically arranged on both sides in the width direction of the doors and windows 7 of the distribution room, that is, the three-way pipe 8 is connected downward to the two straight pipes 9, and the two straight pipes 9 are vertically arranged on both sides of the doors and windows 7 of the distribution room. The ends of the straight pipes 9 are closed.

[0029] Air outlets 11 are respectively opened on the two corresponding air pipes in the branch pipeline 4, that is, the air outlets 11 are arranged on the straight pipes 9. The air outlets 11 are slender narrow slit structures. The air outlets 11 are arranged along the axial direction of the straight pipes 9, and the air outlets 11 have a certain height. The air outlets 11 on the two straight pipes 9 face each other and are arranged in a staggered manner, that is, the opening directions of the air outlets 11 are opposite, and the air outlets 11 are staggered and not in the same plane.

[0030] The compressed air in the main pipeline 1 flows into the branch pipeline 4 and flows out at high speed through the air outlet 11. After passing through the air outlet 11, the compressed air forms an air curtain, which is an invisible curtain formed by high-speed flowing air. The air curtain covers the doors and windows 7 of the distribution room, which can isolate the internal and external environments of the doors and windows 7 of the distribution room. Since there are two air outlets 11 in the branch pipeline 4, two layers of air curtains are formed, and the two layers of air curtains are arranged overlappingly to enhance the isolation effect.

[0031] In order to improve the effect of the air curtain, a deflector 12 for restricting the direction of the air outlet 11 is also provided on the straight pipe 9. The deflectors 12 are arranged on both sides of the air outlet 11. The gap between the deflectors 12 corresponds to the air outlet 11. The deflector 12 extends along the tangent direction of the straight pipe 9 and is parallel to the wall of the distribution room. The high-speed flowing compressed air enters between the two deflectors 12 after passing through the air outlet 11 and then flows out in the form of an air curtain at high speed, which can improve the reliability of the air curtain form.

[0032] In order to optimize the product structure and realize the filtration and purification of compressed air, a filtering unit 13 is also provided on the main pipeline 1 between the air dryer 2 and the dew point sensor 3. The filtering unit 13 is arranged outside the distribution room. The filtering unit 13 includes a filter cylinder 131, a primary filter screen 132, a high-efficiency filter screen 133 and an activated carbon filter screen 134. The filter cylinder 131 is a cylindrical body with both ends open. Along the flowing direction of the compressed air, the primary filter screen 132, the high-efficiency filter screen 133 and the activated carbon filter screen 134 are sequentially arranged in the filter cylinder 131, which can perform multiple purifications on the compressed air and avoid affecting the power distribution facilities in the distribution room.

[0033] The principle of the present utility model is as follows: First, check the sealing performance of the distribution room and take certain measures for plugging. On the premise of ensuring good sealing of the distribution room, continuously introduce compressed air into the distribution room. The compressed air enters from the main pipeline 1 and flows into the distribution room, and is respectively supplied to each group of branch pipelines 4, and then the compressed air flows to the positions of the doors and windows 7 of the distribution room respectively.

[0034] The compressed air at the positions of the doors and windows 7 of the distribution room forms a convective double-layer air curtain under the action of the air outlet 11 and the deflector 12, which can effectively isolate the air inside and outside the distribution room. The compressed air forming the air curtain gradually fills the entire distribution room. Even if the doors and windows 7 of the distribution room are in a short-term open state, the double-layer air curtain can also isolate the harmful air outside from entering, always ensure the environmental temperature in the distribution room, and prevent corrosive gases from entering the distribution room to corrode copper cables, wire noses and copper buses.

[0035] By controlling the dew point temperature of the compressed air entering the distribution room to be below 6 - 8 °C, the water content of the compressed air is ensured to be small. The dew point temperature is monitored in real time by the dew point sensor 3. If the water content of the compressed air is high, the air dryer 2 is controlled to operate, thereby drying the compressed air to ensure that the compressed air entering the distribution room is always at an appropriate dew point temperature.

[0036] Meanwhile, the temperature and humidity detector 6 also monitors the ambient temperature in the distribution room in real time, which is cross-checked with the monitoring value of the dew point sensor 3 to ensure that the ambient temperature where the power distribution facilities are located is appropriate. The gas detector 5 can also detect whether there are harmful gases such as ammonia and hydrogen sulfide in the distribution room.

[0037] The utility model can make the distribution room filled with compressed air at 6 - 8 °C, ensuring that the power distribution facilities are in a suitable temperature environment. The compressed air flows out in the form of a double-layer air curtain at the position of the doors and windows 7 of the distribution room, which can effectively isolate the indoor and outdoor environments, prevent the entry of harmful gases, and also prevent the indoor temperature environment from being damaged. Since it is impossible to make the distribution room absolutely sealed without any air flow, the compressed air introduced into the distribution room forms a positive pressure and can be discharged out of the distribution room through the gaps, which can prevent the entry of external dust and impurities into the distribution room and ensure the safety of the power distribution facilities.

[0038] The above-described embodiments are only the preferred embodiments of the utility model and do not limit the scope of implementation of the utility model. Therefore, any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the utility model patent should be included in the scope of the utility model patent application.

Claims

1. A ventilation and anti-corrosion system suitable for a power distribution room, characterized in that: It includes a main pipeline (1), an air dryer (2), a dew point sensor (3), branch pipelines (4), a gas detector (5) for monitoring harmful gases in the power distribution room, and a temperature and humidity detector (6) for monitoring the ambient temperature in the power distribution room; The air dryer (2) and the dew point sensor (3) are successively arranged on the main pipeline (1). The front end of the main pipeline (1) is connected to a compressed air source, and the rear end of the main pipeline (1) extends into the power distribution room and is connected to multiple groups of the branch pipelines (4). The branch pipelines (4) are arranged at the positions of the doors and windows (7) of the power distribution room; Each group of the branch pipelines (4) is a combined pipe body assembled by multiple air pipes. Each group of the branch pipelines (4) is bent and arranged on the three-week sides of the doors and windows (7) of the power distribution room. Two corresponding air pipes in the branch pipelines (4) are vertically arranged on both sides in the width direction of the doors and windows (7) of the power distribution room. Air outlets (11) are respectively opened on the two air pipes. The air outlets (11) face each other and are arranged in a staggered manner. After the compressed air passes through the air outlets (11), an air curtain is formed to cover the doors and windows (7) of the power distribution room, and two layers of air curtains are arranged in an overlapping manner.

2. A ventilation and anti-corrosion system suitable for a power distribution room according to claim 1, characterized in that: The air dryer (2) is arranged outside the power distribution room, the dew point sensor (3) is arranged inside the power distribution room, and a filtering unit (13) is further arranged on the main pipeline (1) between the air dryer (2) and the dew point sensor (3). The filtering unit (13) is arranged outside the power distribution room.

3. A ventilation and anti-corrosion system suitable for a power distribution room according to claim 2, characterized in that: The filtering unit (13) includes a filter cylinder (131), a primary filter screen (132), a high-efficiency filter screen (133), and an activated carbon filter screen (134). The filter cylinder (131) is a cylindrical body with open ends at both ends. Along the flowing direction of the compressed air, the primary filter screen (132), the high-efficiency filter screen (133), and the activated carbon filter screen (134) are successively arranged inside the filter cylinder (131).

4. A ventilation and anti-corrosion system suitable for a power distribution room according to claim 1, characterized in that: The number of air pipes in each group of the branch pipelines (4) is three. The three air pipes are connected and combined into an inverted "U" shape and surround the three-week sides of the doors and windows (7) of the power distribution room. The three air pipes are respectively a three-way pipe (8) and two straight pipes (9). The three-way pipe (8) is arranged above the doors and windows (7) of the power distribution room. The three-way pipe (8) is connected upward to the main pipeline (1). An opening and closing valve (10) is arranged between the three-way pipe (8) and the main pipeline (1). The three-way pipe (8) is connected downward to the two straight pipes (9). The two straight pipes (9) are vertically arranged on both sides of the doors and windows (7) of the power distribution room. The ends of the straight pipes (9) are closed.

5. A ventilation and anti-corrosion system suitable for a power distribution room according to claim 4, characterized in that: The air outlet (11) is arranged on the straight pipe (9). The air outlet (11) is a slender narrow slit structure and is arranged along the axial direction of the straight pipe (9). A flow guiding plate (12) for restricting the direction of the air outlet (11) is further arranged on the straight pipe (9). The flow guiding plate (12) extends along the tangential direction of the straight pipe (9) and is parallel to the wall of the power distribution room.

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