A ventilation and cooling system installed in an indoor transformer room and a method thereof

Abstract

A ventilation and cooling system installed in an indoor transformer room, wherein a transformer is installed in the transformer room, a radiator is installed on the transformer, an air supply port is located at the lower part of the transformer room side wall, an air exhaust port is located at the upper part of the transformer room, an air supply device for sending air into the transformer room and an intelligent control unit for controlling the air supply device are installed in the transformer room; the control signal of the intelligent control unit comes from a sensor; the air supply device includes a fan and an air flow regulating device, the fan is installed at the air supply port, the air flow regulating device is connected to the fan outlet, and the air flow regulating device is used to guide the air flow sent by the fan to the lower part of the radiator; the transformer room also has an indoor air flow guiding device for changing the flow direction of the air flow sent by the fan to an upward direction, and the indoor air flow guiding device is installed at the lower part of the radiator. The advantages of the present invention are: 1. A ventilation system that can effectively allow air flow to pass through an easily overheated area is established, thereby improving the efficiency of ventilation and cooling; 2. Avoiding the use of a roof ventilator that will bring about a large noise, thereby reducing noise; 3. Since the fresh air sent in directly enters the radiator for heat exchange, the energy consumption of the air supply unit is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cooling an indoor transformer room in the power industry, and in particular to a technology for cooling an indoor transformer room by ventilation. Background Art

[0002] At present, many substations are built around residential areas and large buildings, that is, the center of power load. Figure 8 As mentioned above, the prior art generally adopts the method of using the wall on one side of the transformer room for air intake and exhausting from the top. Since only one side of the three walls of the transformer room is left with air intake, its natural convection cannot meet the heat dissipation requirements of the transformer. In order to increase the air intake, a roof fan is often added to the roof of the transformer room for negative pressure exhaust.

[0003] The application results show that the above-mentioned ventilation and cooling methods have the following disadvantages: 1. The cooling effect is not ideal. Most of the outdoor air sucked into the room does not participate in the heat exchange of the transformer. During the rising process, it directly passes upward from the point with the smallest air resistance to form a partition air curtain. At the same time, local eddies and turbulence are formed in the upper and lower parts of the inner side of the transformer. The airflow circulates up and down to reduce the indoor gradient temperature difference. Instead of participating in the heat exchange, the airflow becomes a heat storage body to increase the indoor temperature and form a high-temperature area 9, which affects the cooling of the equipment in this area. 2. Due to the low cooling efficiency, high-load operation is often required, resulting in high energy consumption. 3. High noise. When using the roof fan negative pressure exhaust method, the fan will cause greater noise to the surrounding area due to the external placement of the fan.

[0004] This requires a new type of ventilation and cooling method used in indoor transformer rooms to improve the ventilation and cooling effect of indoor transformer rooms while avoiding noise. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and solve the problem of poor ventilation and cooling effect in indoor transformer rooms. In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A ventilation and cooling system installed in an indoor transformer room, wherein a transformer is installed in the transformer room, a radiator is installed on the transformer, an air supply port is located at the lower part of the transformer room side wall, an air exhaust port is located at the upper part of the transformer room, an air supply device for sending air into the transformer room and an intelligent control unit for controlling the air supply device are installed in the transformer room; a control signal of the intelligent control unit comes from a sensor; the air supply device comprises a fan and an air flow regulating device, the fan is installed at the air supply port, the air flow regulating device is connected to the fan outlet, and the air flow regulating device is used to guide the air flow sent by the fan to the lower part of the radiator; the transformer room also has an indoor air flow guiding device for changing the flow direction of the air flow sent by the fan to an upward direction, and the indoor air flow guiding device is installed at the lower part of the radiator.

[0007] In particular, the indoor air flow guiding device includes a front plate and a rear plate placed front and back, and the spacing between the front plate and the rear plate is adjustable; the rear plate includes a rear fixed plate and a rear wing plate, the rear wing plate is located on one side or both sides of the rear fixed plate, and the angle between the rear wing plate and the rear fixed plate is adjustable; the front plate includes a front fixed plate and a front wing plate, the front wing plate is telescopically superimposed on one side or both sides of the front fixed plate, and the front wing plate and the front fixed plate can extend to one side or both sides; the indoor air flow guiding device also includes an upper plate, the upper plate is installed on the front plate or the rear plate, and the angle between the upper plate and the front plate or the rear plate is adjustable.

[0008] In particular, the exhaust vent has a controllable ventilation device, and the intelligent control unit controls the opening, closing and opening size of the controllable ventilation device through the signal of the sensor.

[0009] In particular, the sensors include an inlet temperature sensor for detecting the temperature of the incoming air and an indoor temperature sensor for detecting the indoor temperature of the transformer or the transformer temperature. The signal for the intelligent control unit to control the operation of the fan comes from the inlet temperature sensor and the indoor temperature sensor.

[0010] In particular, the signal for the intelligent control unit to control the opening, closing and opening size of the controllable ventilation device comes from the indoor temperature sensor.

[0011] A ventilation and cooling system installed in an indoor transformer room, wherein a transformer is installed in the transformer room, a radiator is installed on the transformer, an air supply port is located at the lower part of the transformer room side wall, an air exhaust port is located at the upper part of the transformer room, an air supply device for sending air into the transformer room and an intelligent control unit for controlling the air supply device are installed in the transformer room; a control signal of the intelligent control unit comes from a sensor; the air supply device comprises a fan and an air flow regulating device, the fan is installed at the air supply port, the air flow regulating device is connected to the fan outlet, and the air flow regulating device is used to guide the air flow sent by the fan to the lower part of the radiator; the air flow regulating device comprises an air supply duct and an air duct outlet, the air duct outlet is located at the lower part of the radiator, and the air supply duct connects the air duct outlet and the fan outlet.

[0012] In particular, the exhaust vent has a controllable ventilation device, and the intelligent control unit controls the opening, closing and opening size of the controllable ventilation device through the signal of the sensor.

[0013] In particular, the sensors include an inlet temperature sensor for detecting the temperature of the incoming air and an indoor temperature sensor for detecting the indoor temperature of the transformer or the transformer temperature. The signal for the intelligent control unit to control the operation of the fan comes from the inlet temperature sensor and the indoor temperature sensor.

[0014] In particular, the signal for the intelligent control unit to control the opening, closing and opening size of the controllable ventilation device comes from the indoor temperature sensor.

[0015] A method for ventilating and cooling an indoor transformer room, using the ventilation and cooling system; when a sensor detects that ventilation and cooling is required in the transformer room, an intelligent control unit controls a fan to supply air to the transformer room, and the airflow supplied by the fan reaches the lower part of the transformer and flows upward through a radiator to cool the radiator, and the hot air is discharged from an exhaust port.

[0016] The advantages of the present invention are: 1. A ventilation system is established that can effectively allow air to pass through areas prone to overheating, thereby improving the efficiency of ventilation and cooling; 2. The use of roof ventilators that cause relatively loud noises is avoided, thereby reducing noise; 3. Since the fresh air directly enters the radiator for heat exchange, the energy consumption of the air supply unit is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 is a structural diagram of an indoor airflow guide device of the present invention;

[0019] Figure 3 is a top view of the airflow guide device of the present invention;

[0020] Figure 4 It is a schematic diagram of the installation of a single-side flow guide device of the present invention;

[0021] Figure 5 It is a schematic diagram of the installation of the double-sided flow guide device of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the second solution of the present invention;

[0023] Figure 7 It is a control framework diagram of the present invention;

[0024] Figure 8 It is a schematic diagram of the prior art structure.

[0025] Figures 1 to 8 The symbols are explained as follows: 1. Transformer room; 11. Air supply outlet; 12. Exhaust outlet; 2. Transformer; 21. Radiator; 3. Intelligent control unit; 41. Air inlet temperature sensor; 42. Indoor temperature sensor; 43. Transformer temperature sensor; 51. Fan; 52. Air flow adjustment device; 521. Air supply duct; 522. Duct outlet; 6. Indoor air flow guide device; 61. Rear plate; 611. Rear fixing plate; 612. Rear wing plate; 621. Front plate; 622. Front wing plate; 63. Upper plate; 64. Distance adjustment device; 7. Controllable ventilation device; 8. Exhaust fan; 9. High temperature area. DETAILED DESCRIPTION

[0026] In order to more clearly describe the technical content of the present invention, Figures 1 to 8 For further description.

[0027] like Figure 1 , Figure 4 , Figure 5 As shown, a ventilation and cooling system installed in an indoor transformer room, wherein a transformer is installed in the transformer room 1, a radiator 21 is installed on the transformer, an air supply port 11 is located at the lower part of the side wall of the transformer room 1, and an air exhaust port 12 is located at the upper part of the transformer room 1, and an air supply device for sending air into the transformer room 1 and an intelligent control unit 3 for controlling the air supply device are installed in the transformer room 1; the control signal of the intelligent control unit 3 comes from a sensor; the air supply device includes a fan 51 and an air flow regulating device 52, the fan 51 is installed at the air supply port 11, the air flow regulating device 52 is connected to the fan outlet, and the air flow regulating device 52 is used to guide the air flow sent by the fan 51 to the lower part of the radiator 21. Under this structure, compared with the prior art, air is extracted from the top of the transformer room 1 but is supplied from the lower part of the side wall. The airflow regulating device 52 can use common technical means such as air outlet grids and directional air ducts to control the direction of the delivered airflow. The airflow delivered by the fan 51 can be directly delivered to the lower part of the radiator 21 after being guided by the airflow regulating device 52. Under the thermal effect of the radiator 21, the airflow will rise and flow through the radiator 21 to achieve cooling of the radiator 21, and the hot air is discharged from the exhaust port 12.

[0028] In order to control the airflow to flow upward smoothly after reaching the bottom of the radiator 21, the system is provided with an indoor airflow guide device 6, which is installed at the lower part of the radiator 21 and is used to turn the horizontal flow direction of the airflow delivered by the air supply device to vertically upward.

[0029] Figure 4 , Figure 5 What is shown is a plan distribution diagram when different numbers of fans 51 and different air flow guide devices are used according to different environments of the transformer room 1.

[0030] like Figure 2 , Figure 3As shown, the indoor air flow guide device 6 includes a front plate 621 and a rear plate 61 placed front and back, and the spacing between the front plate 621 and the rear plate 61 is adjustable; the rear plate 61 includes a rear fixed plate 611 and a rear wing plate 612, and the rear wing plate 612 is located on one side or both sides of the rear fixed plate 611, and the angle between the rear wing plate 612 and the rear fixed plate 611 is adjustable, and the front plate 621 includes a front fixed plate and a front wing plate 622, and the front wing plate 622 is telescopically superimposed on one side or both sides of the front fixed plate, and the front wing plate 622 and the front fixed plate can extend to one side or both sides. The rear fixed plate 611 and the rear wing plate 612 form an arc shape as a whole. The rear wing plate 612 and the rear fixed plate 611 can be installed by a pin shaft. Adjusting the rear wing plate 612 can maximize the collection of the airflow sent by the air supply unit into the guide device, and adjusting the front wing plate 622 can control the amount of air entering the front plate 621. The distance adjustment device 64 is used to adjust the distance between the rear plate 61 and the front plate 621 according to the bottom width of the radiator 21, so that the airflow entering between the two plates can be evenly distributed upward to the bottom of the radiator 21. The front wing plate 622 can cooperate with the rear wing plate 612, making it easier to control the distribution of the air intake of the front and rear plates 61, and when necessary, when the front wing plate 622 is extended to the extreme, it can cooperate with the rear wing plate 612 to close the air ducts entering the rear plate 61 on both sides. The indoor airflow guide device 6 is particularly suitable for adjusting the direction of the airflow at the bottom of the transformer 2. When in use, the indoor airflow guide device 6 is fixed to the lower part of the ground radiator 21, and part of the airflow enters from between the front plate 621 and the rear plate 61, directly hits the front and rear plates 61, and the airflow entering between the front plate 621 and the rear plate 61 is converted from the original horizontal direction to vertically upward. Part of the airflow sent by the fan 51 flows through each radiator 21 during the dissipation process, and part of it will flow through the radiator 21 as an ascending airflow after hitting the front plate 621 and the rear plate 61. That is, the indoor airflow guide device 6 realizes the function of gathering airflow from the airflow direction; and can convert airflow into ascending airflow; and can form two ascending airflows, respectively between the front plate 621 and the fan 51, and between the front plate 621 and the rear plate 61. The installation position of the indoor airflow guide device 6 needs to be adjusted according to the number, position, angle of the fan 51 in the transformer room 1 and the structure and position of the transformer 2, so as to adapt to the purpose of adjusting the airflow to be upward at an appropriate position.

[0031] In order to control the upward direction of the airflow, an upper plate 63 can be installed on the indoor airflow guide device 6. The upper plate 63 is installed on the front plate 621 or the rear plate 61. The angle between the upper plate 63 and the front plate 621 or the rear plate 61 is adjustable. Adjusting the angle between the upper plate 63 and the front wing plate 622 and the rear wing plate 612 can control the direction of the incoming airflow.

[0032] like Figure 1As described, the exhaust port 12 has a controllable regulating device, and the intelligent control unit 3 controls the opening, closing and opening size of the regulating device of the controllable regulating device through the signal of the sensor. The controllable regulating device can use an air valve.

[0033] like Figure 1 As shown, the sensors include an inlet temperature sensor 41 for detecting the temperature of the air supplied, and an indoor temperature sensor 42 for detecting the temperature in the transformer room 1 or the temperature of the transformer 2. The signal for the intelligent control unit 3 to control the operation of the fan 51 is derived from the inlet temperature sensor 41 and the indoor temperature sensor 42, and can also be used to directly obtain the transformer temperature sensor 43. The signal for the intelligent control unit 3 to control the controllable ventilation device 7 is derived from the indoor temperature sensor 42.

[0034] like Figure 6 As shown, it is another scheme to send air from the lower part of the radiator 21 upward. The airflow regulating device 52 includes an air supply duct 521 and an air duct outlet. The air duct outlet 522 is located at the lower part of the radiator 21, and the air supply duct 521 connects the air duct outlet 522 and the fan outlet. That is, the fan 51 directly leads the airflow to the lower part of the radiator 21 through the air supply duct 521, and the airflow flows upward from the air duct outlet 522 directly to the position of the radiator 21 that needs to be cooled. This scheme is limited by the construction environment of the transformer room 1, and it is necessary to set up an air supply duct 521 before it can be implemented. The implementation method of the sensor and the controllable ventilation device 7 in this implementation scheme is the same as the first scheme.

[0035] On the basis of using the above-mentioned ventilation and cooling system, when the sensor detects that ventilation and cooling are needed in the transformer room 1, the intelligent control unit 3 controls the fan 51 to supply air into the transformer room 1. The airflow delivered by the fan 51 reaches the bottom to cool the radiator 21, and the hot air is discharged from the exhaust port 12.

[0036] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it is apparent that various modifications and variations may be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be regarded as illustrative rather than restrictive.

Claims

1. A ventilation and cooling system installed in an indoor transformer room, wherein the transformer room is equipped with a transformer, a radiator is installed on the transformer, an air supply port is located at the lower part of the side wall of the transformer room, and an air exhaust port is located at the upper part of the transformer room, characterized in that: The transformer room is equipped with an air supply device for sending air into the transformer room and an intelligent control unit for controlling the air supply device; the control signal of the intelligent control unit comes from the sensor; the air supply device includes a fan and an air flow regulating device, the fan is installed at the air supply port, the air flow regulating device is connected to the fan outlet, and the air flow regulating device is used to guide the air flow sent by the fan to the lower part of the radiator; the transformer room also has an indoor air flow guiding device for changing the flow direction of the air flow sent by the fan to an upward direction, and the indoor air flow guiding device is installed at the lower part of the radiator; The indoor airflow guiding device comprises a front plate and a rear plate placed front and back, and the distance between the front plate and the rear plate is adjustable; the rear plate comprises a rear fixing plate and a rear wing plate, the rear wing plate is located on one side or both sides of the rear fixing plate, and the angle between the rear wing plate and the rear fixing plate is adjustable; the front plate comprises a front fixing plate and a front wing plate, the front wing plate is telescopically superimposed on one side or both sides of the front fixing plate, and the front wing plate and the front fixing plate can extend to one side or both sides; the indoor airflow guiding device also comprises an upper plate, the upper plate is mounted on the front plate or the rear plate, and the angle between the upper plate and the front plate or the rear plate is adjustable; The exhaust port is provided with a controllable ventilation device, and the intelligent control unit controls the opening, closing and opening size of the controllable ventilation device through the signal of the sensor.

2. The ventilation and cooling system installed in an indoor transformer room as claimed in claim 1, characterized in that: The sensors include an inlet temperature sensor for detecting the temperature of the air supplied, and an indoor temperature sensor for detecting the indoor temperature of the transformer or the temperature of the transformer. The signal for the intelligent control unit to control the operation of the fan comes from the inlet temperature sensor and the indoor temperature sensor.

3. The ventilation and cooling system installed in an indoor transformer room as claimed in claim 2, characterized in that: The signal for the intelligent control unit to control the opening, closing and opening size of the controllable ventilation device comes from the indoor temperature sensor.

4. A method for ventilating and cooling an indoor transformer room, characterized in that: A ventilation and cooling system as described in any one of claims 1 to 3 is used; when the sensor detects that ventilation and cooling are needed in the transformer room, the intelligent control unit controls the fan to supply air to the transformer room, and the airflow supplied by the fan reaches the lower part of the transformer and flows upward through the radiator to cool the radiator, and the hot air is discharged from the exhaust port.

Images