CN215073685U

CN215073685U - Automatic switching device for internal and external circulation of container type PCS air channel

Info

Publication number: CN215073685U
Application number: CN202121524843.3U
Authority: CN
Inventors: 侯荣芳; 裴宝峰; 孟军; 李志刚; 姚海嘉; 苏刘军
Original assignee: Windsun Science and Technology Co Ltd
Current assignee: Windsun Science and Technology Co Ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-12-07
Anticipated expiration: 2031-07-06

Abstract

The utility model discloses an automatic switching control equipment for container formula PCS wind channel internal and external circulation, including box, air intake, wind channel, fan, sleet sensor and PLC controller, the wind channel sets up in one side of box, sets up the air outlet that communicates with the external world on the wind channel, and the fan sets up in the wind channel between last opening and air outlet, all be provided with the shrouding on air intake and the air outlet; the rain and snow sensor is arranged on the outer surface of the box body and communicated with the input port of the PLC, and the air plate controls the opening and closing states of the air inlet and the air outlet through the air plate opening and closing control mechanism. The utility model discloses an automatic switching control equipment when non-sleet weather, opens the extrinsic cycle, has good radiating effect, and when sleet weather, adopts the inner loop, has avoided sleet to be inhaled, has solved current container formula PCS wind channel and has caused the problem that PCS fault rate is high to send out owing to inhale sleet at sleet weather.

Description

Automatic switching device for internal and external circulation of container type PCS air channel

Technical Field

The utility model relates to an automatic switching control equipment of inside and outside circulation, more specifically the theory that says so especially relates to an automatic switching control equipment that is used for container formula PCS wind channel inside and outside circulation.

Background

At present, a container type PCS (Power Conversion System, energy storage converter) is widely applied to a new energy field, and the PCS is an important component of a new energy Power generation and energy storage System. The common container type PCS adopts aluminum alloy shutters, the rain-proof and snow-proof effects are poor, the core components of the PCS device are power electronic devices and are sensitive to the environment, and due to the fact that negative pressure in the PCS container is large, rain and snow are easily sucked from an air inlet, and the PCS failure rate is high. And the power system equipment needs to work stably for a long time, so the problems that the PCS container is large in negative pressure and easy to suck rain and snow need to be solved.

Disclosure of Invention

The utility model discloses an overcome above-mentioned technical problem's shortcoming, provide an automatic switching control equipment that is used for container formula PCS wind channel internal and external circulation.

The utility model discloses an automatic switching control equipment for container formula PCS wind channel internal and external circulation, including box, air intake, wind channel, fan, sleet sensor and PLC controller, the box sets up on the ground, and the air intake sets up on the ground, and the wind channel sets up in one side of box, and the upper end and the lower extreme in wind channel communicate with each other with the inside cavity of box through upper opening and lower opening respectively; the method is characterized in that: the air duct is provided with an air outlet communicated with the outside, the fan is arranged in the air duct between the upper opening and the air outlet, and the air inlet and the air outlet are both provided with sealing plates; the rain and snow sensor is arranged on the outer surface of the box body and is communicated with the input port of the PLC, the air plate controls the opening and closing states of the air inlet and the air outlet through the air plate opening and closing control mechanism, and the air plate opening and closing control mechanism is connected with the PLC.

The utility model discloses an automatic switching control equipment for container formula PCS wind channel internal and external circulation, aerofoil switching control mechanism comprise motor, mechanical rocker arm, 1 travel switch in position, 2 travel switch in position, and the output shaft of motor is connected with the aerofoil through mechanical rocker arm, and 1 travel switch in position and 2 travel switch in position are used for detecting the turned position of mechanical rocker arm, and 1 travel switch in position and 2 travel switch in position's output are connected with the input of PLC controller.

The utility model discloses an automatic switching control equipment for container formula PCS wind channel internal and external circulation, the output of PLC controller is connected with the power input end of motor through corotation relay and reversal relay to the control motor carries out corotation and reversal.

The utility model discloses an automatic switching control equipment for container formula PCS wind channel internal-external circulation, mechanical rocker comprises first connecting rod and second connecting rod, the one end of first connecting rod and the output shaft fixed connection of motor, and the other end is articulated mutually with the one end of second connecting rod, and the other end of second connecting rod is articulated mutually with the aerofoil.

The utility model discloses an automatic switching control equipment for container formula PCS wind channel internal-external circulation, position 1 travel switch and position 2 travel switch detect the turned position of first connecting rod.

The utility model has the advantages that: the utility model discloses an automatic switching control equipment of PCS wind channel internal and external circulation, the ground that the box was located is provided with the air intake, be provided with the air outlet on the wind channel on the box, and all be provided with the aerofoil on air intake, the air outlet, the aerofoil is controlled through aerofoil switching control mechanism, when the PLC controller detects that the external world is rainy or snowy weather through the sleet sensor that sets up on the box surface, then drive the aerofoil through aerofoil switching control mechanism and rotate, make air intake, air outlet all be in the closed condition, make the air in the box carry out the inner circulation flow; when the weather that the outside is not rainy or snowy is detected, the air inlet and the air outlet are controlled to be opened, and the air flow in the box body is controlled to be in an external circulation state. It can be seen that, the utility model discloses an automatic switching control equipment opens the extrinsic cycle when non-sleet weather, has realized the good radiating effect of PCS device in the box, when sleet weather, adopts the inner loop, has both avoided sleet to be inhaled in the box, has guaranteed certain radiating effect again, has solved current container formula PCS wind channel and has caused the problem that PCS fault rate height is sent out owing to inhale sleet at sleet weather.

Drawings

Fig. 1 is a perspective view of the automatic switching device for the internal and external circulation of the container type PCS air duct of the present invention;

fig. 2 is a perspective view of the automatic switching device for the internal and external circulation of the container type PCS air duct of the present invention;

FIG. 3 is a schematic structural view of the opening and closing control mechanism of the center wind plate of the present invention;

fig. 4 is a control schematic diagram of the PLC controller of the present invention.

In the figure: the device comprises a box body 1, a foundation 2, an air inlet 3, an air plate 4, an air duct 5, a rain and snow sensor 6, a mechanical rocker arm 7, an upper opening 8, a lower opening 9, an air outlet 10, an outer circulation air path 11, an inner circulation air path 12, a motor 13, a first connecting rod 14, a second connecting rod 15, a travel switch 16 and 1, a travel switch 17 and a travel switch 2 and a PLC 18.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2, all give the utility model discloses an automatic switching control equipment's stereogram for container formula PCS wind channel inside and outside circulation, it is by box 1, air intake 3, aerofoil 4, wind channel 5, sleet sensor 6, air outlet 10, aerofoil switching control mechanism, PLC controller 18 constitutes, the inside of box 1 is the cavity, be used for holding energy storage converter PCS components and parts, box 1 sets up on ground 2, air intake 3 is seted up to one side of ground 2, the communicating opening with air intake 3 has been seted up to the bottom of box 1, be provided with aerofoil 4 on the air intake 3. The rain and snow sensor 6 is arranged on the outer surface of the box body 1 and used for detecting whether the outside is in a rain or snow state, and the output of the rain and snow sensor 6 is connected with the input port of the PLC 18.

The air duct 5 is arranged on one side of the box body 1, the number of the air duct 5 can be 1 or more than 1, the upper end of the air duct 5 is communicated with the inner cavity of the box body 1 through the upper opening 8, the lower end of the air duct is communicated with the opening at the bottom of the box body 1 through the lower opening 9, a fan is arranged in the middle of the air duct 5, and the outer circulation or the inner circulation of air inside the box body 1 is realized under the air draft state of the fan. An air outlet 10 is arranged on the air duct 5 between the fan and the lower through opening 9, and an air plate is arranged on the air outlet 10. The air plates on the air inlet 3 and the air outlet 10 are controlled by the air plate opening and closing control mechanism, and the air plate opening and closing control mechanism controls the air plates to rotate, so that the air inlet 3 and the air outlet 10 can be switched between an open state and a closed state.

As shown in fig. 3, the utility model discloses well aerofoil switching control mechanism's schematic structure is given, shown aerofoil switching control mechanism is by motor 13, mechanical rocker 7, position 1 travel switch 16 and position 2 travel switch 17 are constituteed, mechanical rocker 7 comprises first connecting rod 14 and second connecting rod 15, the one end of first connecting rod 14 is fixed in on the output shaft of motor 13, the other end is articulated mutually with the one end of second connecting rod 15, the other end of second connecting rod 15 is articulated mutually with aerofoil 4, and thus, under the drive effect of motor 13, aerofoil 4 can be ordered about through first connecting rod 14 and second connecting rod 15 and rotate, and then make air intake 3 or air outlet 10 open or be closed. The position 1 and position 2

travel switches

16, 17 are shown for detecting the rotational position of the first link 14 to determine whether the damper 4 is in the closed or open state, the output of the position 1 and position 2

travel switches

16, 17 being connected to the input of the PLC controller 18.

As shown in fig. 4, the utility model discloses in PLC controller's control schematic diagram, shown sleet sensor 6 is the sleet sensor of switching value output type, is connected to PLC controller 18's input port for convert the outside weather information of container into the signal of telecommunication, pass PLC controller 18 to the conversion result. The output of the PLC controller 18 is connected to the power input of the motor 13 via a forward relay and a reverse relay to control the forward rotation and reverse rotation of the motor at the air inlet and the air outlet, and further control the open and close states of the air inlet 3 and the air outlet 10.

The utility model discloses an automatic switching control equipment's theory of operation does:

when extreme weather of rain and snow occurs outside the PCS container on site, the output point of the rain and snow sensor arranged outside the box body is closed and transmitted to the PLC through a cable. And after the PLC obtains a closing signal of the rain and snow sensor, the PLC controls the reversing relay at the air inlet position 2 and the reversing relay at the air outlet position 2 to be sucked, drives the corresponding mechanical rocker arms to reverse, and drives the air plates at the air inlet position and the air outlet position to rotate reversely. The air plate at the air inlet rotates reversely to gradually close the air inlet, as shown in fig. 1. The air plate at the air outlet rotates reversely, the air outlet of the air duct is gradually closed, and the outlet air gradually enters the air inlet at the bottom of the box body, as shown in fig. 2. When the air plate at the air inlet and the air outlet rotates reversely to the formulated position, the corresponding stroke switch 2 at the air inlet position and the stroke switch 2 at the air outlet position are triggered, the PLC controls the corresponding reverse relay 2 at the air inlet position and the reverse relay 2 at the air outlet position to be disconnected, and the air duct external circulation is switched to the internal circulation.

When extreme weather such as rain, snow and the like does not appear outside the field PCS container, as shown in figure 1, the output point of the rain and snow sensor arranged outside the container is disconnected and transmitted to the PLC controller through a cable. After the PLC obtains the off signal of the rain and snow sensor, as shown in FIG. 4, the PLC controls the forward rotation relay at the air inlet position 1 and the forward rotation relay at the air outlet position 1 to suck, drives the corresponding mechanical rocker arm 7 to rotate forward, and drives the air plates at the air inlet position and the air outlet position to rotate forward. The air plate at the position of the air inlet rotates forwards to gradually open the air inlet, as shown in figure 1. The air plate at the air outlet rotates forward, the air outlet of the air duct is gradually opened, and the outlet air is gradually discharged out of the container, as shown in fig. 2. When the air plates at the air inlet and the air outlet rotate forwards to the formulated position, and after the corresponding stroke switches of the air inlet position 1 and the air outlet position 1 are triggered, the PLC controls the corresponding forward rotation relay of the air inlet position 1 and the corresponding forward rotation relay of the air outlet position 1 to be disconnected, so that the switching of the air duct internal circulation to the external circulation is completed.

Claims

1. An automatic switching device for container type PCS air channel internal and external circulation comprises a box body (1), an air inlet (3), an air channel (5), a fan, a rain and snow sensor (6) and a PLC (programmable logic controller) controller (18), wherein the box body is arranged on a foundation (2), the air inlet (3) is arranged on the foundation, the air channel is arranged on one side of the box body, and the upper end and the lower end of the air channel are respectively communicated with an internal cavity of the box body through an upper through opening (8) and a lower through opening (9); the method is characterized in that: an air outlet (10) communicated with the outside is formed in the air duct, the fan is arranged in the air duct between the upper opening and the air outlet, and air plates (4) are arranged on the air inlet and the air outlet; the rain and snow sensor is arranged on the outer surface of the box body and is communicated with the input port of the PLC, the air plate controls the opening and closing states of the air inlet and the air outlet through the air plate opening and closing control mechanism, and the air plate opening and closing control mechanism is connected with the PLC.

2. The automatic switching device for the internal and external circulation of the container type PCS air duct of claim 1 is characterized in that: the air plate opening and closing control mechanism is composed of a motor (13), a mechanical rocker arm (7), a position 1 travel switch (16) and a position 2 travel switch (17), an output shaft of the motor is connected with the air plate through the mechanical rocker arm, the position 1 travel switch and the position 2 travel switch are used for detecting the rotating positions of the mechanical rocker arm, and the outputs of the position 1 travel switch and the position 2 travel switch are connected with the input end of a PLC (programmable logic controller) (18).

3. The automatic switching device for the internal and external circulation of the container type PCS air duct of claim 2 is characterized in that: the output end of the PLC (18) is connected with the power input end of the motor (13) through a forward relay and a reverse relay so as to control the motor to rotate forward and reverse.

4. The automatic switching device for the internal and external circulation of the container type PCS air duct of claim 2 is characterized in that: the mechanical rocker arm (7) is composed of a first connecting rod (14) and a second connecting rod (15), one end of the first connecting rod is fixedly connected with an output shaft of the motor (13), the other end of the first connecting rod is hinged with one end of the second connecting rod, and the other end of the second connecting rod is hinged with the air plate (4).

5. The automatic switching device for the internal and external circulation of the container type PCS air duct of claim 4 is characterized in that: the position 1 stroke switch (16) and the position 2 stroke switch (17) detect the rotation position of the first connecting rod (14).