A remote recovery system for heating power failure

Abstract

A remote recovery system for power outages in heating belongs to the technical field of heating systems. The technical problem to be solved by the utility model is to prevent the municipal power supply voltage from temporarily dropping or disappearing, causing the power supply voltage of the heating system to be interrupted. The utility model includes a rectifier module, a DC UPS power supply, a frequency converter, a relay, a field controller, a switch, an industrial computer, and a switch; the rectifier module is respectively connected to the municipal AC power supply and the DC UPS power supply, the DC UPS power supply is connected to the frequency converter, one end of the frequency converter is connected to the relay, the relay is connected to the field controller, the field controller is connected to the switch, and the switch is connected to the industrial computer; the other end of the frequency converter is connected to the municipal AC power supply through a switch. The utility model solves the problem that personnel need to be on site to restore the operation of the equipment after the heat exchange station has a power outage, reduces the safety risks and manpower consumed during the power outage recovery process, and avoids equipment damage.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating systems, and in particular relates to a remote recovery system for heating power fluctuation faults. Background Art

[0002] At present, the heat exchange station of the heating company mainly relies on the inverter to remotely control the circulation pump and the water supply pump. When the municipal voltage fluctuates, it mainly relies on the internal parameters of the inverter for adjustment. The inverter protection action is often triggered after the voltage fluctuates, causing the equipment in the station to stop operating. The equipment cannot be restored remotely, and personnel need to reset the inverter on site to restore the system operation. A lot of manpower and time are consumed in the process of power fluctuation recovery. Summary of the invention

[0003] A brief overview of the present invention is given below in order to provide a basic understanding of certain aspects of the present invention. It should be understood that this overview is not an exhaustive overview of the present invention. It is not intended to identify key or important parts of the present invention, nor is it intended to limit the scope of the present invention. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0004] The problem to be solved by the utility model is to prevent the problem of temporary drop or disappearance of municipal power supply voltage causing interruption of power supply voltage in heating system, and propose a remote recovery system for heating power shaking fault.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A heating power failure remote recovery system, including a rectifier module, a DC UPS power supply, a frequency converter, a relay, a field controller, a switch, an industrial computer, and a switch;

[0007] The rectifier module is respectively connected to the municipal AC power supply and the DC UPS power supply, the DC UPS power supply is connected to the frequency converter, one end of the frequency converter is connected to the relay, the relay is connected to the field controller, the field controller is connected to the switch, and the switch is connected to the industrial computer;

[0008] The other end of the frequency converter is connected to the municipal AC power supply through a switch.

[0009] Furthermore, the model of the direct current UPS power supply is DC-Bank UPS.

[0010] Furthermore, the model of the frequency converter is ACS510.

[0011] Furthermore, the model of the relay is MY2N-J.

[0012] Furthermore, the model of the field controller is PLC M340.

[0013] Furthermore, the model of the industrial computer is Advantech IPC-610L.

[0014] The beneficial effects of the utility model are:

[0015] The utility model discloses a remote recovery system for heating power failure, in which the municipal AC power is rectified by the rectifier module to charge the UPS. The inverter has the characteristics of AC / DC, and its power circuit can be powered by AC and DC. The DC output port of the system is connected in parallel to the DC bus terminal of the inverter. The UPS system is used as a backup power supply to form a dual power supply with the original AC power supply circuit, ensuring the power supply reliability of the inverter main circuit.

[0016] The utility model describes a remote recovery system for heating power shaking faults, in which the field controller PLC is connected to the digital input port of the inverter to realize the transmission of the reset signal, and the inverter fault code is transmitted to the field controller through the 485 interface. In order to reduce the amount of construction and renovation engineering, a digital output control is adopted. According to the different numbers of inverters in the heat exchange station, relays are connected in series to realize a digital point control of the reset terminals of all inverters in the heat exchange station.

[0017] The utility model discloses a remote recovery system for heat supply power fluctuation faults, which solves the problem that personnel need to be on site to restore equipment operation after a power fluctuation in a heat exchange station, reduces the safety risks and manpower consumed in the power fluctuation recovery process, and avoids equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the structure of a remote recovery system for heating power failure. DETAILED DESCRIPTION

[0019] Hereinafter, exemplary embodiments of the present invention will be described in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the specific goals of the developers, for example, to meet those constraints related to the system and the business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, for those skilled in the art who benefit from the disclosure of the present invention, such development work is merely a routine task.

[0020] It is also necessary to explain here that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0021] In order to further understand the content, features and functions of the utility model, the following specific implementation methods are given as examples, and the attached Figure 1 The detailed instructions are as follows:

[0022] A heating power failure remote recovery system includes a rectifier module 1, a DC UPS power supply 2, a frequency converter 3, a relay 4, a field controller 5, a switch 6, an industrial computer 7, and a switch 8;

[0023] The rectifier module 1 is connected to the municipal AC power supply and the DC UPS power supply 2 respectively, the DC UPS power supply 2 is connected to the frequency converter 3, one end of the frequency converter 3 is connected to the relay 4, the relay 4 is connected to the field controller 5, the field controller 5 is connected to the switch 6, and the switch 6 is connected to the industrial computer 7;

[0024] The other end of the frequency converter 3 is connected to the municipal AC power supply through a switch 8 .

[0025] Furthermore, the model of the DC UPS power supply 2 is DC-Bank UPS.

[0026] Furthermore, the model of the frequency converter 3 is ACS510.

[0027] Furthermore, the model of the relay 4 is MY2N-J.

[0028] Furthermore, the model of the field controller 5 is PLC M340.

[0029] Furthermore, the model of the industrial computer 7 is Advantech industrial computer IPC-610L.

[0030] Furthermore, the inverter parameters are set as follows through Advantech industrial computer: the inverter DI port function is newly set to reset, and parameters are modified for different models of inverters, such as overvoltage control, main power failure, input phase loss function, reset mode, DC loop compensation, voltage limit, borrowed energy operation, etc. The device can comprehensively detect the inverter bus undervoltage disturbance, bus overvoltage disturbance, bus phase loss, and control voltage undervoltage disturbance. In the case of undervoltage disturbance of the inverter, by judging the start and stop state or running state of the inverter, it is detected whether the inverter is shut down. If it is shut down, the system automatically resets the ERR according to the ERR state after the voltage returns to normal (bus voltage and control voltage), and then starts the inverter. Switch to the UPS system at the moment of power shaking, and the external power grid is still powered by AC before and after the power shaking. In the switching process, the inverter overcomes the remote fault recovery and records the fault parameters. This mode design greatly improves the reliability of the inverter in the operation of the municipal power grid system.

[0031] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although the present application has been described above with reference to specific embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the various features in the specific embodiments disclosed in the present application may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A remote recovery system for heating power failure, characterized in that: It includes a rectifier module (1), a DC UPS power supply (2), a frequency converter (3), a relay (4), a field controller (5), a switch (6), an industrial computer (7), and a switch (8); The rectifier module (1) is respectively connected to a municipal AC power supply and a DC UPS power supply (2), the DC UPS power supply (2) is connected to a frequency converter (3), one end of the frequency converter (3) is connected to a relay (4), the relay (4) is connected to a field controller (5), the field controller (5) is connected to a switch (6), and the switch (6) is connected to an industrial computer (7); The other end of the frequency converter (3) is connected to the municipal AC power supply via a switch (8).

2. A heating power failure remote recovery system according to claim 1, characterized in that: The model of the direct current UPS power supply (2) is DC-Bank UPS.

3. A heating power failure remote recovery system according to claim 2, characterized in that: The model of the frequency converter (3) is ACS510.

4. A heating power failure remote recovery system according to claim 3, characterized in that: The model of the relay (4) is MY2N-J.

5. A heating power failure remote recovery system according to claim 4, characterized in that: The model of the field controller (5) is PLC M340.

6. A heating power failure remote recovery system according to claim 5, characterized in that: The model of the industrial computer (7) is Advantech IPC-610L.

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