Power distribution room cooling method used in small environment

Abstract

The invention provides a power distribution room cooling method used in a small environment, and relates to the technical field of power distribution room cooling, and the method comprises the following steps: step 1, optimizing a hot air discharge system, step 2, adding a booster fan, and installing the booster fan at an external air inlet of a room, and step 3, installing a dedusting filter screen. The problems that heat generated when the high-voltage frequency conversion cabinet works cannot be removed, and negative pressure and plateau environment in a room is easily caused are solved, the induced draft fan water resistance cabinet is replaced and changed into the high-voltage frequency conversion cabinet, meanwhile, a series of transformation is conducted according to the high-voltage frequency conversion cabinet, the overall temperature of the power distribution room is reduced, the heat dissipation effect is improved, and the service life of the power distribution room is prolonged. And therefore, negative pressure is prevented from being generated during working.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling in distribution rooms, and particularly to a method for cooling a distribution room in a small environment. Background Art

[0002] In the initial stage of project construction, the induced draft fan was started by a water resistance cabinet, and the requirement for room temperature was relatively low. In this transformation, the original water resistance cabinet of the induced draft fan was removed and replaced with a high-voltage frequency conversion cabinet. However, due to the relatively small original space and the difficulty of dissipating the generated heat, the indoor temperature continued to rise, resulting in the abnormal operation of the high-voltage frequency conversion cabinet.

[0003] At the same time, the air duct of the cooling fan was directly led to the outside, causing serious negative pressure inside the room and creating a high-altitude environment in the frequency conversion cabinet, making the pressure between the two unbalanced. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for cooling a distribution room in a small environment, which solves the problems that the heat generated during the operation of the high-voltage frequency conversion cabinet cannot be removed and it is easy to cause negative pressure and high-altitude environment inside the room.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: A method for cooling a distribution room in a small environment includes the following steps: Step 1: Optimize the hot air discharge system; Step 2: Add a booster fan and install it at the outside air inlet of the room; Step 3: Install a dust removal filter screen.

[0006] According to the method for cooling a distribution room in a small environment provided by the present invention, in Step 1, when optimizing the hot air discharge system, the original water resistance cabinet of the induced draft fan is removed and replaced with a high-voltage frequency conversion cabinet.

[0007] According to the method for cooling a distribution room in a small environment provided by the present invention, in Step 1, a cooling fan is arranged in the high-end frequency conversion cabinet room, and at the same time, a cold air duct is arranged. The hot air generated by the high-voltage frequency conversion cabinet is discharged through the cooling fan and the cold air duct.

[0008] According to the method for cooling a distribution room in a small environment provided by the present invention, in Step 2, the installed booster fan blows the cold air outside into the interior of the distribution room, thereby reducing the problems of internal negative pressure and indoor temperature.

[0009] According to the method for cooling a distribution room in a small environment provided by the present invention, in Step 2, the booster fan is selected to be suitable for the size of the room and have the same heat dissipation capacity as the frequency converter. Moreover, when installing, a suitable position is selected in the room for installation, and after installation, it is connected to the power supply and the control system.

[0010] According to the power distribution room cooling method for a small environment provided by the present invention, the control system in step two is used to control the air volume of the booster fan, and the control system realizes the control of the air volume through a pressure sensor.

[0011] According to the power distribution room cooling method for a small environment provided by the present invention, when installing the dust removal filter screen in step three, a dust removal filter screen with appropriate filtration efficiency and air resistance is selected, and when installing, the filter screen is installed at the air inlet to ensure the fixation and sealing of the filter screen.

[0012] In summary, the beneficial technical effects of the present invention are as follows: Temperature monitoring data: Initial temperature: Before the transformation, the temperature in the high-voltage frequency conversion cabinet room was 42°C.

[0013] Target temperature: After the transformation, the target temperature in the room is below 25°C.

[0014] Pressure monitoring data Initial pressure: Before the transformation, the negative pressure in the room was -50 Pa.

[0015] Target pressure: After the transformation, the target pressure in the room is 0 Pa (pressure balance).

[0016] Pressure monitoring: Use a pressure sensor to monitor the pressure in the room in real time and control the air intake volume.

[0017] Equipment operation status Initial state: Before the transformation, the high-voltage frequency conversion cabinet frequently had overheating alarms and the operation was unstable.

[0018] Target state: After the transformation, the high-voltage frequency conversion cabinet has no overheating alarms and the operation is stable.

[0019] Status monitoring: Check the operation status of the high-voltage frequency conversion cabinet once an hour and record the alarm situation of the equipment.

[0020] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Specific embodiments

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic expressions of the above terms do not refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0023] The following describes the technical solution of the present invention in conjunction with embodiments: A power distribution room cooling method for a small environment includes the following steps: Step 1: Optimize the hot air discharge system. Step 2: Add a booster fan and install it at the outdoor air inlet of the room. Step 3: Install a dust removal filter screen.

[0024] According to the power distribution room cooling method for a small environment provided by the present invention, in Step 1 of optimizing the hot air discharge system, the original induced draft fan water resistance cabinet is removed and replaced with a high-voltage frequency conversion cabinet.

[0025] According to the power distribution room cooling method for a small environment provided by the present invention, in Step 1, a cooling fan is set in the high-end frequency conversion cabinet room, and at the same time, a cold air duct is set, and the hot air generated by the high-voltage frequency conversion cabinet is discharged through the cooling fan and the cold air duct.

[0026] According to the power distribution room cooling method for a small environment provided by the present invention, in Step 2, the installed booster fan blows the outdoor cold air into the interior of the power distribution room, thereby reducing the problems of internal negative pressure and indoor temperature.

[0027] According to the power distribution room cooling method for a small environment provided by the present invention, in Step 2, a booster fan with a suitable size for the room and the same heat dissipation component as the frequency converter is selected, and when installing, a suitable position is selected in the room for installation. After installation, it is connected to the power supply and the control system.

[0028] According to the power distribution room cooling method for a small environment provided by the present invention, the control system in Step 2 is used to control the air volume of the booster fan, and the control system realizes the control of the air volume through a pressure sensor.

[0029] According to the power distribution room cooling method for a small environment provided by the present invention, in Step 3, a dust removal filter screen with a suitable filtration efficiency and air resistance is selected when installing the dust removal filter screen, and when installing, the filter screen is installed at the air inlet to ensure the fixation and sealing of the filter screen.

[0030] Step 1: Optimize the hot air discharge system Discharge the hot air generated by the high-voltage frequency conversion cabinet through the air duct of the cooling fan. Design and install a suitable air duct to ensure that the hot air can be effectively discharged outdoors smoothly.

[0031] Step 2: Add a booster fan Install an air inlet outside the room and a booster fan. Blow the cold air outdoors into the distribution room through the booster fan to solve the internal negative pressure problem and the problem of too high indoor temperature.

[0032] Select a booster fan: Select a booster fan suitable for the room size and with the same heat dissipation air volume as the frequency converter.

[0033] Install the fan: Install the fan at an appropriate position in the room and connect it to the power supply and control system.

[0034] Control system debugging: Use a pressure sensor to control the air volume of the fan to ensure pressure balance in the room.

[0035] Step 3: Install a dust removal filter Install a dust removal filter at the air inlet to filter the particulate matter in the air and ensure the air quality entering the room.

[0036] Select a filter: Select a dust removal filter suitable for the filtration efficiency and air resistance. Reduce the dust in the air from entering the distribution room.

[0037] Install the filter: Install the filter at the air inlet to ensure its firmness and sealing.

[0038] The results of the transformation according to the above steps are as follows: Temperature monitoring data Initial temperature: Before the transformation, the temperature in the high-voltage frequency conversion cabinet room was 42°C.

[0039] Target temperature: After the transformation, the target temperature in the room is below 25°C.

[0040] Pressure monitoring data Initial pressure: Before the transformation, the negative pressure in the room was -50 Pa.

[0041] Target pressure: After the transformation, the target pressure in the room is 0 Pa (pressure balance).

[0042] Pressure monitoring: Use a pressure sensor to monitor the pressure in the room in real time and control the air intake.

[0043] Equipment operation status Initial state: Before the transformation, the high-voltage frequency conversion cabinet frequently had overheat alarms and the operation was unstable.

[0044] Target state: After the transformation, there is no overheating alarm for the high-voltage frequency conversion cabinet, and it operates stably.

[0045] Status monitoring: Check the operating status of the high-voltage frequency conversion cabinet once an hour and record the alarm situation of the equipment.

[0046] From the results of the transformation by the above transformation method, it can be seen that the temperature and pressure in the high-voltage frequency conversion cabinet room have been effectively controlled. The temperature in the room has dropped from 35 - 42 °C before the transformation to 21 - 25 °C, and the pressure in the room has increased from -50 to -70 Pa to 0 Pa. The high-voltage frequency conversion cabinet operates stably, without overheating or ventilation port blockage alarms. This solution not only solves the problems of high temperature and negative pressure, but also ensures the normal operation of the equipment, providing a strong guarantee for the quality and effect of the overall project.

[0047] For the power distribution room improved by the above installation steps, the real-time data recorded after a certain period of time is as follows: The cooling fan of the high-voltage frequency conversion cabinet is 17000 m³ / h, and the parameters of the booster fan Equipment Name Cabinet Centrifugal Fan Model HTFC-18 Air Volume 16970-19080 Total Pressure Pt Pa 747-740 Fan Rotation Speed F.RPM 800 Motor Power KW 7.5 Motor Rotation Speed M.RPM 1440 Motor Model M.model 132M-4 Power Supply 380 / 50 / 3 Record of temperature detection in the computer room (unit: °C)

[0048] From the above table, it can be seen that on October 27, 2023, the temperature dropped significantly after the transformation, and the temperature dropped by about 15 - 20 degrees Celsius compared to before the transformation.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for cooling a power distribution room in a small environment, characterized in that: The following steps are involved: Step 1: Optimize the hot air exhaust system; Step 2: Add a booster fan and install it at the air inlet outside the room; Step 3: Install the dust filter.

2. The method for cooling a power distribution room in a small environment according to claim 1 is characterized in that: In the step 1, the hot air exhaust system is optimized by removing the original induced draft fan water resistance cabinet and replacing it with a high-voltage frequency conversion cabinet.

3. The method for cooling a power distribution room in a small environment according to claim 2 is characterized in that: The step one is to set a cooling fan in the high-end frequency conversion cabinet room, and set a cold air duct at the same time, and discharge the hot air generated by the high-voltage frequency conversion cabinet through the cooling fan and the cold air duct.

4. The method for cooling a power distribution room in a small environment according to claim 1, characterized in that: The booster fan installed in step 2 blows outdoor cold air into the distribution room, thereby reducing the internal negative pressure and indoor temperature problems.

5. The method for cooling a power distribution room in a small environment according to claim 4 is characterized in that: In the step 2, the booster fan is selected to be suitable for the room size and the same as the inverter heat dissipation component, and is installed in a suitable position in the room during installation. After installation, it is connected to the power supply and control system.

6. The method for cooling a power distribution room in a small environment according to claim 5 is characterized in that: The control system in step 2 is used to control the air volume of the booster fan, and the control system controls the air volume through a pressure sensor.

7. The method for cooling a power distribution room in a small environment according to claim 1 is characterized in that: In the step 3, when installing the dust filter, select a dust filter with suitable filtration efficiency and wind resistance, and install the filter at the air inlet during installation to ensure that the filter is fixed and sealed.

Images