Display system of axial flow fan and high-voltage solid-state soft start system

Abstract

The utility model discloses a display system of an axial flow fan. The display system comprises a vibration acquisition unit, a temperature acquisition unit and a control unit, the vibration acquisition unit is suitable for generating a vibration amplitude signal corresponding to the vibration amplitude of the axial flow fan; the temperature acquisition unit is suitable for generating a temperature signal corresponding to the bearing temperature of the axial flow fan; the control unit is suitable for performing data conversion on the vibration amplitude signal and the temperature signal and outputting the signals to the display unit; the display unit is further suitable for displaying the vibration amplitude and the bearing temperature of the axial flow fan according to the vibration amplitude signal and the temperature signal converted by the control unit. The vibration amplitude parameter and the temperature parameter of the axial flow fan are displayed through the existing display unit on the main cabinet, so that a worker can intuitively know the vibration amplitude parameter and the bearing temperature parameter of the axial flow fan in real time, and the implementation cost is also reduced. The utility model further discloses a high-voltage solid-state soft start system which comprises the main cabinet, the display unit and the display system of the axial flow fan.

Description

Technical Field

[0001] The utility model relates to the field of high voltage electricity, in particular to a display system of an axial flow fan and a high voltage solid-state soft starting system. Background Art

[0002] High voltage solid state soft starter, also known as medium and high voltage solid state soft starter, is a new type of medium and high voltage motor soft starter, mainly suitable for medium and high voltage AC motors below 10KV, using advanced DSP control technology, power electronics technology and its main components are three-phase phase-parallel thyristor and its electronic control circuit connected in series between the power supply and the controlled motor. Different methods are used to control the conduction angle of the three-phase phase-parallel thyristor, so that the input voltage of the controlled motor changes according to different requirements, and different functions can be achieved.

[0003] Axial flow fans are a common ventilation equipment. Due to their large flow rate, small size and low pressure head, they are widely used in ventilation, heat dissipation and exhaust gas emission in tunnels such as subways, highways and urban roads. However, in actual work, axial flow fans may fail due to excessive bearing temperature or abnormal vibration amplitude. Summary of the invention

[0004] The technical problem to be solved by the utility model is that the existing axial flow fan is prone to failure due to excessively high bearing temperature or abnormal vibration amplitude.

[0005] The utility model discloses a display system for an axial flow fan, which is suitable for being connected to a high-voltage solid-state soft-start device. The high-voltage solid-state soft-start device comprises: a main cabinet and a display unit, wherein the display unit is arranged on the main cabinet, and the display system for the axial flow fan comprises: a vibration collection unit, a temperature collection unit and a control unit.

[0006] The vibration acquisition unit is suitable for generating a vibration amplitude signal corresponding to the vibration amplitude of the axial flow fan. The temperature acquisition unit is suitable for generating a temperature signal corresponding to the bearing temperature of the axial flow fan. The control unit is connected to the vibration acquisition unit, the temperature acquisition unit and the display unit, and the control unit is suitable for performing data conversion on the vibration amplitude signal and the temperature signal and outputting them to the display unit. The display unit is also suitable for displaying the vibration amplitude and bearing temperature of the axial flow fan according to the vibration amplitude signal and the temperature signal converted by the control unit.

[0007] Optionally, the vibration collection unit includes: a vibration sensor, a first converter, a first port, a second port, a third port and a fourth port. The vibration sensor is connected to the first converter, and the vibration sensor is suitable for collecting the vibration amplitude of the axial flow fan. The first converter is suitable for converting the vibration amplitude collected by the vibration sensor into the vibration amplitude signal, and the vibration amplitude signal is an analog signal. The first converter is connected to the first port, the second port, the third port and the fourth port, and the first port and the second port are suitable for transmitting the vibration amplitude signal to the control unit. The third port is connected to the positive pole of the power supply. The fourth port is connected to the negative pole of the power supply.

[0008] Optionally, the temperature acquisition unit includes: a temperature sensor, a second converter, a fifth port, a sixth port, a seventh port and an eighth port. The temperature sensor is connected to the second converter, and the temperature sensor is suitable for collecting the bearing temperature of the axial flow fan. The second converter is suitable for converting the bearing temperature collected by the temperature sensor into the temperature signal, and the temperature signal is an analog signal. The second converter is connected to the fifth port, the sixth port, the seventh port and the eighth port, and the fifth port and the sixth port are suitable for transmitting the temperature signal to the control unit. The seventh port is connected to the positive pole of the power supply. The eighth port is connected to the negative pole of the power supply.

[0009] Optionally, the control unit is adapted to convert the vibration amplitude signal into a first digital signal, convert the temperature signal into a second digital signal, and transmit the first digital signal and the second digital signal to the display unit.

[0010] Optionally, the control unit is further adapted to generate an alarm signal when the first digital signal exceeds a vibration amplitude threshold, or when the second digital signal exceeds a temperature threshold.

[0011] Optionally, the display system of the axial flow fan further includes: an alarm unit. The alarm unit is connected to the control unit and is suitable for giving an alarm prompt according to the alarm signal.

[0012] Optionally, the alarm prompt includes: a horn, an LED light and an icon.

[0013] Optionally, the vibration acquisition unit is provided with a first serial port, which is suitable for transmitting the vibration amplitude signal to the control unit; the temperature acquisition unit is provided with a second serial port, which is suitable for transmitting the temperature signal to the control unit; the control unit is provided with an Ethernet interface, which is suitable for transmitting the first digital signal and the second digital signal to the display unit.

[0014] Optionally, the display system of the axial flow fan further includes: a valve and an interlocking unit. The valve connects the axial flow fan and the display system of the axial flow fan, and the control unit connects the axial flow fan. The interlocking unit connects the valve and the control unit, and the interlocking unit is suitable for controlling the axial flow fan and the display system of the axial flow fan to start or stop according to the state of the valve.

[0015] The present application also proposes a high-voltage solid-state soft start system, comprising: a main cabinet, a display unit and the display system of the axial flow fan described above. The display unit is arranged on the main cabinet, and the display system of the axial flow fan is connected to the display unit.

[0016] Due to the adoption of the above-mentioned technical scheme, the utility model has the following beneficial effects compared with the prior art: in the prior art, a display unit is provided on the main cabinet of the high-voltage solid-state soft start system, and the display unit is used to display parameter information of the equipment in the main cabinet, and the axial flow fan is arranged outside the main cabinet. The present application transmits the vibration amplitude parameters and temperature parameters of the axial flow fan to the display unit through the setting of the vibration collection unit and the temperature collection unit, and displays the vibration amplitude parameters and temperature parameters of the axial flow fan through the existing display unit on the main cabinet, so that the staff can intuitively know the vibration amplitude and bearing temperature parameters of the axial flow fan in real time, and reduce the implementation cost.

[0017] The above description of the disclosed contents and the following description of the implementation modes are used to demonstrate and explain the spirit and principle of the present utility model, and to provide a further explanation of the patent application scope of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of a display system of an axial flow fan according to an embodiment of the utility model;

[0020] Figure 2 This is another structural schematic diagram of a display system for an axial flow fan according to an embodiment of the utility model.

[0021] Description of Figure Numbers:

[0022] 1. Vibration acquisition unit; 11. Vibration sensor; 12. First converter; 2. Temperature acquisition unit; 21. Temperature sensor; 22. Second converter; 3. Control unit; 4. Display unit; 5. Interlocking unit. DETAILED DESCRIPTION

[0023] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0024] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0026] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "provided with", "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0027] See also Figure 1 and Figure 2 As shown, the present application discloses a display system for an axial flow fan, which is suitable for being connected to a high-voltage solid-state soft-start device, wherein the high-voltage solid-state soft-start device comprises: a main cabinet and a display unit 4, wherein the display unit 4 is arranged on the main cabinet, and the display system for the axial flow fan comprises: a vibration collection unit 1, a temperature collection unit 2 and a control unit 3.

[0028] The vibration acquisition unit 1 is suitable for generating a vibration amplitude signal corresponding to the vibration amplitude of the axial flow fan. The temperature acquisition unit 2 is suitable for generating a temperature signal corresponding to the bearing temperature of the axial flow fan. The control unit 3 is connected to the vibration acquisition unit 1, the temperature acquisition unit 2 and the display unit 4, and the control unit 3 is suitable for performing data conversion on the vibration amplitude signal and the temperature signal and outputting them to the display unit 4. The display unit 4 is also suitable for displaying the vibration amplitude and bearing temperature of the axial flow fan according to the vibration amplitude signal and the temperature signal converted by the control unit 3.

[0029] In this embodiment, the high-voltage solid-state soft start device of the prior art includes a main cabinet and a display unit 4, the display unit 4 is connected to the main cabinet, the display unit 4 is arranged on the main cabinet, the display unit 4 is used to display parameter information of the equipment in the main cabinet, and the axial flow fan is arranged outside the main cabinet. In order to enable the staff to intuitively know the vibration amplitude and bearing temperature information of the axial flow fan, the display system of the axial flow fan of the present application is connected to the high-voltage solid-state soft start device, and the display system of the axial flow fan includes a vibration collection unit 1, a temperature collection unit 2 and a control unit 3.

[0030] Among them, the axial flow fan is connected to the vibration collection unit 1 and the temperature collection unit 2, and the control unit 3 is connected to the vibration collection unit 1 and the temperature collection unit 2. The vibration collection unit 1 collects the vibration amplitude of the axial flow fan, generates a vibration amplitude signal corresponding to the vibration amplitude, and transmits the vibration amplitude signal to the control unit 3. The temperature collection unit 2 collects the bearing temperature of the axial flow fan, generates a temperature signal corresponding to the bearing temperature, and transmits the temperature signal to the control unit 3. The control unit 3 performs data conversion on the vibration amplitude signal and the temperature signal and transmits them to the display unit 4, and the display unit 4 is used to display the converted vibration amplitude signal and temperature signal. The present application is provided with a vibration collection unit 1 and a temperature collection unit 2, and the vibration amplitude parameters and temperature parameters of the axial flow fan are displayed on the existing display unit 4 on the main cabinet, which can not only enable the staff to intuitively know the vibration amplitude and bearing temperature parameters of the axial flow fan in real time, but also reduce the implementation cost.

[0031] In this embodiment, the display unit 4 is a touch screen or a display screen, and can be reasonably selected and set according to actual needs, as long as the display unit 4 can display the vibration amplitude and temperature parameters of the axial flow fan. In addition, the display unit 4 can be arranged on the outer wall of the main cabinet or inside the main cabinet.

[0032] Further, see Figure 2, the vibration collection unit 1 includes: a vibration sensor 11, a first converter 12, a first port, a second port, a third port and a fourth port. The vibration sensor 11 is connected to the first converter 12, and the vibration sensor 11 is suitable for collecting the vibration amplitude of the axial flow fan. The first converter 12 is suitable for converting the vibration amplitude collected by the vibration sensor 11 into the vibration amplitude signal, and the vibration amplitude signal is an analog signal. The first converter 12 is connected to the first port, the second port, the third port and the fourth port, and the first port and the second port are suitable for transmitting the vibration amplitude signal to the control unit 3. The third port is connected to the positive pole of the power supply, and the fourth port is connected to the negative pole of the power supply.

[0033] In this embodiment, the vibration collection unit 1 includes a vibration sensor 11, a first converter 12, a first port, a second port, a third port and a fourth port. The vibration sensor 11 is connected to the axial flow fan and the first converter 12, and the vibration sensor 11 is used to collect the vibration amplitude of the axial flow fan. The first converter 12 is connected to the control unit 3, and the first converter 12 converts the vibration amplitude collected by the vibration sensor 11 into a vibration amplitude signal, which is an analog signal. The first converter 12 is connected to the first converter 12, the first port, the second port, the third port and the fourth port, wherein the first port and the second port transmit the vibration amplitude signal to the control unit 3, the third port and the fourth port are connected to the power supply, the third port is used to connect the positive pole of the power supply, and the fourth port is used to connect the negative pole of the power supply.

[0034] The first converter 12 can be implemented by TD-4024, and the output signal types include: 4~20mA, -20mA~+20mA, -10V~+10V, supporting the sampling of multiple signals.

[0035] Specifically, the temperature acquisition unit 2 includes: a temperature sensor 21, a second converter 22, a fifth port, a sixth port, a seventh port and an eighth port. The temperature sensor 21 is connected to the second converter 22, and the temperature sensor 21 is suitable for collecting the bearing temperature of the axial flow fan. The second converter 22 is suitable for converting the bearing temperature collected by the temperature sensor 21 into the temperature signal, and the temperature signal is an analog signal. The second converter 22 is connected to the fifth port, the sixth port, the seventh port and the eighth port, and the fifth port and the sixth port are suitable for transmitting the temperature signal to the control unit 3. The seventh port is connected to the positive pole of the power supply, and the eighth port is connected to the negative pole of the power supply.

[0036] In this embodiment, the temperature acquisition unit 2 includes a temperature sensor 21, a second converter 22, a fifth port, a sixth port, a seventh port and an eighth port. The temperature sensor 21 is connected to the axial flow fan and the second converter 22, and the temperature sensor 21 is used to collect the bearing temperature of the axial flow fan. The second converter 22 is connected to the control unit 3, and the second converter 22 converts the bearing temperature collected by the temperature sensor 21 into a temperature signal, which is an analog signal. The second converter 22 is connected to the fifth port, the sixth port, the seventh port and the eighth port. The fifth port and the sixth port transmit the temperature signal to the control unit 3, the seventh port and the eighth port are connected to the power supply, the seventh port is used to connect the positive pole of the power supply, and the eighth port is used to connect the negative pole of the power supply.

[0037] The temperature sensor 21 can be implemented by PT100, or a thermocouple, PT1000, Cu50 or Cu100, and can be reasonably selected and set according to actual needs. In addition, the second converter 22 can be implemented by TD-4016R.

[0038] More specifically, the control unit 3 is adapted to convert the vibration amplitude signal into a first digital signal, convert the temperature signal into a second digital signal, and transmit the first digital signal and the second digital signal to the display unit 4 .

[0039] In this embodiment, the control unit 3 converts the analog signals transmitted by the vibration collection unit 1 and the temperature collection unit 2 into digital signals. Among them, the control unit 3 converts the vibration amplitude signal into a first digital signal, and the control unit 3 also converts the temperature signal into a second digital signal, and transmits the first digital signal and the second digital signal to the display unit 4, and the display unit 4 is suitable for displaying the vibration amplitude and bearing temperature parameters of the axial flow fan. In this embodiment, the control unit 3 can be implemented by a PLC, and the model of the PLC is Siemens CPU SR20.

[0040] Furthermore, the control unit 3 is also suitable for generating an alarm signal when the first digital signal exceeds a vibration amplitude threshold, or the second digital signal exceeds a temperature threshold. A display system for an axial flow fan also includes an alarm unit. The alarm unit is connected to the control unit 3, and the alarm unit is suitable for giving an alarm prompt according to the alarm signal. The alarm prompt includes: a speaker, an LED light, and an icon.

[0041] In this embodiment, in order to further improve the safety of the axial flow fan during operation, when the control unit 3 detects that the first digital signal exceeds the vibration amplitude threshold or the second digital signal exceeds the temperature threshold, an alarm signal is generated, and the alarm signal is issued through the alarm unit. The alarm prompt includes sound, light and icon, wherein the icon alarm prompt is displayed on the display unit 4, and the control unit 3 can also stop the axial flow fan based on the alarm signal, thereby avoiding the risk of continuing to operate the axial flow fan when a fault occurs. At the same time, when a fault occurs, the staff can promptly know that the axial flow fan has an abnormal operation through one or more of the sound, light and icon alarms, so that the relevant equipment can be quickly repaired.

[0042] Specifically, the vibration acquisition unit 1 is provided with a first serial port, which is suitable for transmitting the vibration amplitude signal to the control unit 3; the temperature acquisition unit 2 is provided with a second serial port, which is suitable for transmitting the temperature signal to the control unit 3; the control unit 3 is provided with an Ethernet interface, which is suitable for transmitting the first digital signal and the second digital signal to the display unit 4.

[0043] In this embodiment, the first serial port provided on the vibration acquisition unit 1 transmits the vibration amplitude signal to the control unit 3, the second serial port provided on the temperature acquisition unit 2 transmits the temperature signal to the control unit 3, and the Ethernet interface provided on the control unit 3 transmits the first digital signal and the second digital signal to the display unit 4. The vibration acquisition unit 1 can transmit the differential signal to the control unit 3 through the RS-485 communication interface, and the temperature acquisition unit 2 can transmit the differential signal to the control unit 3 through the RS-485 port.

[0044] More specifically, the display system of the axial flow fan further includes a valve and an interlocking unit 5. The valve connects the axial flow fan and the display system of the axial flow fan, and the control unit 3 connects the axial flow fan. The interlocking unit 5 connects the valve and the control unit 3, and the interlocking unit 5 is suitable for controlling the axial flow fan and the display system of the axial flow fan to start or stop according to the state of the valve.

[0045] In this embodiment, when the valve is fully opened, the interlocking unit 5 can start the axial flow fan and the display system of the axial flow fan, and when the valve is fully closed, the interlocking unit 5 can stop the axial flow fan and the display system of the axial flow fan.

[0046] In addition, the present application also discloses a high-voltage solid-state soft start system, including a main cabinet, a display unit 4 and the display system of the axial flow fan. The display system of the axial flow fan transmits the vibration amplitude and temperature parameters of the axial flow fan to the display unit 4 of the high-voltage solid-state soft start system, which can not only enable the staff to intuitively know the vibration amplitude and bearing temperature parameters of the axial flow fan in real time, improve the safety of the axial flow fan operation, but also reduce the implementation cost.

[0047] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below.

[0048] When the valve is fully opened, the interlocking unit 5 can start the axial flow fan and the display system of the axial flow fan. First, the vibration sensor 11 collects the vibration amplitude of the axial flow fan, and the temperature sensor 21 collects the bearing temperature of the axial flow fan. Secondly, the first converter 12 converts the vibration amplitude collected by the vibration sensor 11 into a vibration amplitude signal, and the first serial port transmits the vibration amplitude signal to the control unit 3. The second converter 22 converts the bearing temperature collected by the temperature sensor 21 into a temperature signal, and the second serial port transmits the temperature signal to the control unit 3. The control unit 3 converts the vibration amplitude signal into a first digital signal, and also converts the temperature signal into a second digital signal. The Ethernet interface transmits the first digital signal and the second digital signal to the display unit 4. The display unit 4 is suitable for displaying the vibration amplitude and temperature parameters of the axial flow fan. When the axial flow fan needs to be closed, close the valve first. When the valve is fully closed, the interlocking unit 5 can shut down the axial flow fan and the display system of the axial flow fan.

[0049] When the axial flow fan fails, the control unit 3 detects that the first digital signal exceeds the vibration amplitude threshold or the second digital signal exceeds the temperature threshold, and the control unit 3 generates an alarm signal. The alarm signal is issued through the alarm unit. The alarm prompt includes sound, light and icon, where the icon alarm is displayed on the display unit 4. The control unit 3 also shuts down the axial flow fan based on the alarm signal.

[0050] In general, the present application provides a display system for an axial flow fan, including: a vibration acquisition unit, a temperature acquisition unit and a control unit; the vibration acquisition unit is suitable for generating a vibration amplitude signal corresponding to the vibration amplitude of the axial flow fan; the temperature acquisition unit is suitable for generating a temperature signal corresponding to the bearing temperature of the axial flow fan; the control unit is suitable for performing data conversion on the vibration amplitude signal and the temperature signal and outputting them to the display unit; the display unit is also suitable for displaying the vibration amplitude and bearing temperature of the axial flow fan according to the vibration amplitude signal and the temperature signal converted by the control unit. The present application displays the vibration amplitude parameters and temperature parameters of the axial flow fan through the existing display unit on the main cabinet, which can not only enable the staff to intuitively know the vibration amplitude and bearing temperature parameters of the axial flow fan in real time, but also reduce the implementation cost. The present application also discloses a high-voltage solid-state soft start system, including a main cabinet, a display unit and a display system for the axial flow fan.

[0051] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A display system for an axial flow fan, suitable for connecting to a high-voltage solid-state soft-start device, the high-voltage solid-state soft-start device comprising: A main cabinet and a display unit, wherein the display unit is arranged on the main cabinet, and is characterized in that the display system of the axial flow fan comprises: a vibration collection unit, a temperature collection unit and a control unit; The vibration collection unit is adapted to generate a vibration amplitude signal corresponding to the vibration amplitude of the axial flow fan; The temperature acquisition unit is adapted to generate a temperature signal corresponding to the bearing temperature of the axial flow fan; The control unit is connected to the vibration acquisition unit, the temperature acquisition unit and the display unit, and the control unit is adapted to perform data conversion on the vibration amplitude signal and the temperature signal and output the data to the display unit; The display unit is also suitable for displaying the vibration amplitude and bearing temperature of the axial flow fan according to the vibration amplitude signal and temperature signal converted by the control unit.

2. The display system of the axial flow fan according to claim 1, characterized in that: The vibration collection unit includes: a vibration sensor, a first converter, a first port, a second port, a third port and a fourth port; The vibration sensor is connected to the first converter, and the vibration sensor is suitable for collecting the vibration amplitude of the axial flow fan; The first converter is adapted to convert the vibration amplitude collected by the vibration sensor into the vibration amplitude signal, wherein the vibration amplitude signal is an analog signal; The first converter is connected to the first port, the second port, the third port and the fourth port, and the first port and the second port are suitable for transmitting the vibration amplitude signal to the control unit; The third port is connected to the positive electrode of the power supply; The fourth port is connected to the negative electrode of the power supply.

3. The display system of the axial flow fan according to claim 1, characterized in that: The temperature acquisition unit includes: a temperature sensor, a second converter, a fifth port, a sixth port, a seventh port and an eighth port; The temperature sensor is connected to the second converter, and the temperature sensor is suitable for collecting the bearing temperature of the axial flow fan; The second converter is adapted to convert the bearing temperature collected by the temperature sensor into the temperature signal, wherein the temperature signal is an analog signal; The second converter is connected to the fifth port, the sixth port, the seventh port and the eighth port, and the fifth port and the sixth port are suitable for transmitting the temperature signal to the control unit; The seventh port is connected to the positive electrode of the power supply; The eighth port is connected to the negative electrode of the power supply.

4. The display system of the axial flow fan according to claim 2 or 3, characterized in that: The control unit is adapted to convert the vibration amplitude signal into a first digital signal, convert the temperature signal into a second digital signal, and transmit the first digital signal and the second digital signal to the display unit.

5. The display system of the axial flow fan according to claim 4, characterized in that: The control unit is further adapted to generate an alarm signal when the first digital signal exceeds a vibration amplitude threshold, or when the second digital signal exceeds a temperature threshold.

6. The display system of the axial flow fan according to claim 5, characterized in that: Also includes: Alarm unit; The alarm unit is connected to the control unit, and the alarm unit is suitable for giving an alarm prompt according to the alarm signal.

7. The display system of the axial flow fan according to claim 6, characterized in that: The alarm prompt includes: a horn, an LED light and an icon.

8. The display system of the axial flow fan according to claim 4, characterized in that: The vibration collection unit is provided with a first serial port, and the first serial port is suitable for transmitting the vibration amplitude signal to the control unit; The temperature acquisition unit is provided with a second serial port, and the second serial port is suitable for transmitting the temperature signal to the control unit; The control unit is provided with an Ethernet interface, and the Ethernet interface is suitable for transmitting the first digital signal and the second digital signal to the display unit.

9. The display system of the axial flow fan according to claim 1, characterized in that: Also includes: Valves and interlock units; The valve is connected to the axial flow fan and the display system of the axial flow fan, and the control unit is connected to the axial flow fan; The interlocking unit connects the valve and the control unit, and is suitable for controlling the axial flow fan and the display system of the axial flow fan to start or stop according to the state of the valve.

10. A high voltage solid state soft start system, characterized in that: include: A main cabinet, a display unit and a display system for an axial flow fan as claimed in any one of claims 1 to 9; The display unit is arranged on the main cabinet, and the display system of the axial flow fan is connected to the display unit.

Images