Device for detecting operating parameters of electric field of electric precipitator

Abstract

The utility model discloses an electric field operation parameter detection device for an electric dust remover, which comprises an electric dust remover system, a high-voltage measuring component and a micro-current measuring component, and the electric dust remover system comprises an electric dust remover, a high-voltage power supply and a control cabinet. The high-voltage measuring assembly comprises a direct-current high-voltage divider and a low-voltage display, and the micro-current measuring assembly comprises a digital direct-current high-voltage microammeter and a camera. The electric field operation parameter detection device of the electric dust remover solves the problems of inaccurate meter display secondary voltage and secondary current caused by long operation time of a matched high-voltage power supply of the existing electric dust remover and inaccurate meter display secondary voltage and secondary current caused by mismatching of information processing coefficients of a new factory high-voltage power supply; the key of efficient and stable operation of the electric dust remover is to help operation and maintenance personnel of the electric dust remover to timely and accurately judge electric field operation parameters of the electric dust remover.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic precipitators, in particular to an electric field operating parameter detection device for an electrostatic precipitator. Background Art

[0002] Electrostatic precipitator technology is a technology that uses a high-voltage power supply to generate corona discharge on the cathode line to charge the dust particles in the dust-laden gas, and collects the dust under the action of the electric field force. The long-term stability of the high-voltage power supply performance is the basis for the efficient operation of the electrostatic precipitator.

[0003] my country's first electrostatic precipitator was installed in Benxi Workers, Peasants and Soldiers Cement Plant in 1936. In 1954, the first four-field electrostatic precipitator designed and manufactured independently was used to recycle valuable metal materials. It was not until the 1990s that my country's electrostatic precipitator technology entered a stage of rapid development. Electrostatic precipitators have played an important role in the ultra-low emissions of industrial flue gas in coal-fired power plants, steel mills, cement plants and other industries.

[0004] At present, the design life of electrostatic precipitators is generally 30 years. As the service time of the electrostatic precipitator increases, the high-voltage power supply performance and information conversion and transmission are very likely to fail, which is manifested as distortion of the secondary voltage and secondary current displayed on the high-voltage power supply control cabinet. As a result, technical personnel cannot make timely and accurate judgments on the electric field performance during the operation of the electrostatic precipitator, causing unnecessary losses. Utility Model Content

[0005] The utility model provides an electrostatic precipitator electric field operating parameter detection device, the purpose of which is to solve the problems of inaccurate displayed secondary voltage and secondary current caused by the long operation time of the existing high-voltage power supply of the electrostatic precipitator and inaccurate displayed secondary voltage and secondary current caused by the mismatch of the information processing coefficient of the new high-voltage power supply from the factory, and to help the electrostatic precipitator operation and maintenance personnel to judge the electric field operating parameters of the electrostatic precipitator in a timely and accurate manner, which has a wide range of economic benefits for the efficient operation of the system process.

[0006] The technical solution provided by the utility model is as follows:

[0007] An electrostatic precipitator electric field operation parameter detection device includes an electrostatic precipitator system, a high voltage measurement component and a micro-current measurement component;

[0008] The electrostatic precipitator system comprises an electrostatic precipitator, a high-voltage power supply and a control cabinet, wherein the electrostatic precipitator and the control cabinet are electrically connected to the high-voltage power supply respectively; the high-voltage power supply is an industrial frequency DC power supply, including a single-phase and a three-phase industrial frequency power supply; the control cabinet is a low-voltage operating cabinet provided in conjunction with the high-voltage power supply;

[0009] The high voltage measurement assembly includes a DC high voltage divider and a low voltage display, wherein the DC high voltage divider is arranged on the circuit between the electrostatic precipitator and the high voltage power supply, and the DC high voltage divider is composed of at least two capacitive elements connected in series; the low voltage display is electrically connected to the DC high voltage divider;

[0010] The microcurrent measurement component includes a digital DC high-voltage microammeter and a camera. The digital DC high-voltage microammeter is arranged on the circuit between the electrostatic precipitator and the high-voltage power supply. The camera is used to collect the indication image of the digital DC high-voltage microammeter.

[0011] Furthermore, the DC high-voltage voltage divider is connected in parallel with the electrostatic precipitator system.

[0012] Furthermore, the digital DC high-voltage microammeter is connected in series with the electrostatic precipitator system.

[0013] Furthermore, the DC high-voltage voltage divider is connected to the low-voltage display via a signal line, and the length of the signal line is at least more than 2 meters to ensure a safe distance.

[0014] Furthermore, the electrostatic precipitator and the high-voltage power supply, and the DC high-voltage voltage divider and the high-voltage power supply are connected via high-voltage cables, and the high-voltage cables are arranged overhead.

[0015] Furthermore, the shells of the electrostatic precipitator, the high-voltage power supply and the DC high-voltage divider are all grounded.

[0016] Furthermore, the camera and the digital DC high-voltage microammeter are arranged at a distance of more than 500 mm to avoid interference between high-voltage electricity and low-voltage signal transmission.

[0017] Furthermore, the top and base of the digital DC high-voltage microammeter are respectively provided with an electrical signal input terminal and an electrical signal output terminal, the electrical signal input terminal is introduced through a high-voltage cable, and the electrical signal output terminal is led out through a high-voltage cable.

[0018] Furthermore, the digital DC high-voltage microammeter is provided with an insulating fixed support, and the material of the insulating fixed support is polymethyl methacrylate, polytetrafluoroethylene or high-alumina porcelain.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model provides an electrostatic precipitator electric field operating parameter detection device, which includes an electrostatic precipitator system, a high voltage measurement component and a microcurrent measurement component. The electrostatic precipitator electric field operating parameter detection device and method solve the problems of inaccurate displayed secondary voltage and secondary current caused by long operation time of the existing high-voltage power supply of the electrostatic precipitator and inaccurate displayed secondary voltage and secondary current caused by mismatch of information processing coefficient of the new high-voltage power supply. The utility model helps the electrostatic precipitator operation and maintenance personnel to judge the electric field operating parameters of the electrostatic precipitator in a timely and accurate manner, which has wide economic benefits for the efficient operation of the system process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the electric field operating parameter detection device of the electrostatic precipitator in the embodiment of the utility model.

[0022] The reference numerals are as follows:

[0023] 1- high voltage power supply; 2- control cabinet; 3- electrostatic precipitator; 4- DC high voltage voltage divider; 5- low voltage display; 6- digital DC high voltage microammeter; 7- camera. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the detailed description of the embodiments of the present application provided below in conjunction with the accompanying drawings is intended to represent only selected embodiments of the present application, and is not intended to limit the scope of protection claimed in the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0026] It should be understood that in the description of the embodiments of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0027] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0028] See also Figure 1 The utility model provides an electric field operation parameter detection device for an electrostatic precipitator, comprising an electrostatic precipitator system, a high voltage measurement component and a micro-current measurement component.

[0029] The electrostatic precipitator system includes an electrostatic precipitator 3, a high-voltage power supply 1, and a control cabinet 2. The electrostatic precipitator 3 and the control cabinet 2 are electrically connected to the high-voltage power supply 1 respectively; the high-voltage power supply 1 is an industrial frequency DC power supply, including single-phase and three-phase industrial frequency power supplies; the control cabinet 2 is a low-voltage operating cabinet provided in conjunction with the high-voltage power supply 1. The electrostatic precipitator 3 is an industrial flue gas particulate purification device, and the control cabinet 2 is a low-voltage operating cabinet provided in conjunction with the high-voltage power supply 1 that can meet the requirements of the electrostatic precipitator 3 system switch, operating parameter control, measurement, and protection electrical appliances.

[0030] The high voltage measurement component includes a DC high voltage divider 4 and a low voltage display 5. The DC high voltage divider 4 is arranged on the circuit between the electrostatic precipitator 3 and the high voltage power supply 1, and the DC high voltage divider 4 is composed of at least two capacitor elements connected in series; the low voltage display 5 is electrically connected to the DC high voltage divider 4, and the low voltage display 5 is used to synchronously collect the output voltage of the DC high voltage divider 4.

[0031] The microcurrent measurement component includes a digital DC high-voltage microammeter 6 and a camera 7. The digital DC high-voltage microammeter 6 is arranged on the circuit between the electrostatic precipitator 3 and the high-voltage power supply 1. The camera 7 is used to collect the indication image of the digital DC high-voltage microammeter 6.

[0032] Optionally, the DC high voltage divider 4 is connected in parallel with the electrostatic precipitator system.

[0033] Optionally, a digital DC high voltage microammeter 6 is connected in series with the electrostatic precipitator system.

[0034] Optionally, the DC high voltage divider 4 is connected to the low voltage display 5 via a signal line, and the length of the signal line is at least more than 2 meters to ensure a safe distance.

[0035] Optionally, the electrostatic precipitator 3 and the high-voltage power supply 1, and the DC high-voltage voltage divider 4 and the high-voltage power supply 1 are connected via high-voltage cables, and the high-voltage cables are installed overhead.

[0036] Optionally, the shells of the electrostatic precipitator 3, the high-voltage power supply 1 and the DC high-voltage divider 4 are all grounded.

[0037] Optionally, the camera 7 and the digital DC high-voltage microammeter 6 are arranged at a distance of more than 500 mm to avoid interference between high-voltage electricity and low-voltage signal transmission.

[0038] Optionally, an electrical signal input terminal and an electrical signal output terminal are respectively provided at the top and the base of the digital DC high-voltage microammeter 6. The electrical signal input terminal is introduced through a high-voltage cable, and the electrical signal output terminal is led out through a high-voltage cable.

[0039] Optionally, the digital DC high-voltage microammeter 6 is provided with an insulating fixed support, and the material of the insulating fixed support is polymethyl methacrylate, polytetrafluoroethylene or high-alumina porcelain.

[0040] The detection of the electric field operating parameter detection device of the electrostatic precipitator provided by the utility model comprises the following steps:

[0041] S1. Connect the control cabinet 2 to the high-voltage power supply 1 in a standardized manner, connect the output end of the high-voltage power supply 1 to the electrostatic precipitator 3, and ground the housings of the high-voltage power supply 1 and the electrostatic precipitator 3.

[0042] S2. Connect the lead cable of the high-voltage power supply 1 to the access end of the DC high-voltage divider 4, connect the low-voltage display 5 to the DC high-voltage divider 4 through a signal line, and ground the grounding column of the DC high-voltage divider 4, so that the high-voltage measurement component is connected in parallel with the electrostatic precipitator system.

[0043] S3. Connect the lead-out cable of the high-voltage power supply 1 to the electrical signal input terminal of the digital DC high-voltage microammeter 6, and connect the lead-out cable of the electrical signal output terminal of the digital DC high-voltage microammeter 6 to the electrostatic precipitator 3, so that the digital DC high-voltage microammeter 6 is connected in series to the electrostatic precipitator system, and the camera 7 and the digital DC high-voltage microammeter 6 are kept at a safe distance, and the camera 7 is aimed at the display position of the digital DC high-voltage microammeter 6.

[0044] S4, power on and start the electric field operation parameter detection device of the electrostatic precipitator 3, and adjust the electric field boost of the electrostatic precipitator 3 through the control cabinet 2. At this time, the control cabinet 2 displays the no-load secondary voltage and secondary current of the electrostatic precipitator 3 and records the first data.

[0045] S5. Regulate the boost voltage through the control cabinet 2. At this time, the no-load secondary voltage and secondary current of the electrostatic precipitator 3 are transmitted respectively through the low-voltage display 5 and the camera 7, and the second data is recorded. The second data is the real and effective data output by the high-voltage power supply 1.

[0046] The effect and function of the electric field operating parameter detection device for an electrostatic precipitator can be more clearly understood through the specific embodiments below.

[0047] Example 1

[0048] The electrostatic precipitator pilot test platform independently designed by the laboratory of Xi'an Longjing Environmental Protection Technology Co., Ltd. has a total dust collection area of ​​63.7m 2 , equipped with GGAJ02-200mA / 66kV single-phase industrial frequency high-voltage power supply, rated AC input 50HZ, 380V / 48A, rated output voltage 66kV, rated output current 0.2A, high-voltage power supply manufacturing date July 10, 2014, no-load test control cabinet display primary voltage, primary current and secondary voltage, secondary current and the electrostatic precipitator electric field operation parameter detection device and method provided by the utility model measured secondary voltage and secondary current results are shown in Table 1: The results show that the control cabinet display secondary voltage is too small, and the secondary current is too large. When the measured secondary voltage is 24.23kV, the electric field starts to flare; when the secondary voltage is 59.76kV, the electric field breaks down, and the secondary current is 23.75mA at this time. The results show that the secondary voltage and secondary current displayed by this control cabinet can no longer accurately reflect the electric field operation parameters of the electrostatic precipitator. Among them, the specific models of the DC high-voltage divider, low-voltage display, digital DC high-voltage microammeter and camera used are as follows:

[0049] The control cabinet adopts GGAJ02-200MA / 66KV;

[0050] The DC high voltage divider adopts the SGB-100C model, and a low voltage display matching the DC high voltage divider is used;

[0051] The digital DC high voltage microammeter adopts SAM-Ⅱ model;

[0052] The camera model used is DS-2CD3T56WD-i3.

[0053] Table 1

[0054]

[0055] Example 2

[0056] The cathode discharge wire was replaced on the basis of Example 1, and the dust collection area was 63.7m 2, supporting GGAj02-0.1 / 72SM three-phase industrial frequency high-voltage power supply, AC input 50HZ, 3~380V / 14A, rated rectified voltage 72kV, rated rectified current 0.1A, power supply manufacturing date August 2023, no-load test control cabinet display primary voltage, primary current and secondary voltage, secondary current and the electric field operation parameter detection device and method of the electrostatic precipitator provided by the utility model The measured secondary voltage and secondary current results are shown in Table 2: The results show that the control cabinet display secondary voltage and the electric field operation parameter detection device and method of the electrostatic precipitator provided by the utility model The measured secondary voltage results are basically consistent, and the measured secondary current is smaller than the control cabinet display secondary current. The display secondary current needs to be multiplied by a coefficient of 0.6~0.7 to obtain the measured secondary current. In this embodiment, the control cabinet adopts GGAj02TIVC-0.1 / 72, and the other instrument models remain unchanged.

[0057] Table 2

[0058]

[0059] In summary, the utility model provides an electrostatic precipitator electric field operating parameter detection device, which includes an electrostatic precipitator system, a high voltage measurement component and a microcurrent measurement component. The electrostatic precipitator system includes an electrostatic precipitator, a high voltage power supply and a control cabinet. The high voltage measurement component includes a DC high voltage voltage divider and a low voltage display. The microcurrent measurement component includes a digital DC high voltage microammeter and a camera. The electrostatic precipitator electric field operating parameter detection device can solve the problems of inaccurate displayed secondary voltage and secondary current caused by the long operation time of the existing high voltage power supply of the electrostatic precipitator and inaccurate displayed secondary voltage and secondary current caused by the mismatch of the information processing coefficient of the new high voltage power supply. It helps the electrostatic precipitator operation and maintenance personnel to timely and accurately judge the electric field operating parameters of the electrostatic precipitator, which has broad economic benefits for the efficient operation of the system process.

[0060] The above is only the best specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application shall be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A device for detecting electric field operation parameters of an electrostatic precipitator, characterized in that: Including electrostatic precipitator system, high voltage measurement components and micro current measurement components; The electrostatic precipitator system comprises an electrostatic precipitator, a high-voltage power supply and a control cabinet, wherein the electrostatic precipitator and the control cabinet are electrically connected to the high-voltage power supply respectively; the high-voltage power supply is an industrial frequency DC power supply, including a single-phase and a three-phase industrial frequency power supply; the control cabinet is a low-voltage operating cabinet provided in conjunction with the high-voltage power supply; The high voltage measurement assembly includes a DC high voltage divider and a low voltage display, wherein the DC high voltage divider is arranged on the circuit between the electrostatic precipitator and the high voltage power supply, and the DC high voltage divider is composed of at least two capacitive elements connected in series; the low voltage display is electrically connected to the DC high voltage divider; The microcurrent measurement component includes a digital DC high-voltage microammeter and a camera. The digital DC high-voltage microammeter is arranged on the circuit between the electrostatic precipitator and the high-voltage power supply. The camera is used to collect the indication image of the digital DC high-voltage microammeter.

2. The electric field operating parameter detection device for an electrostatic precipitator according to claim 1, characterized in that: The DC high voltage divider is connected in parallel with the electrostatic precipitator system.

3. The electric field operating parameter detection device for an electrostatic precipitator according to claim 1, characterized in that: The digital DC high-voltage microammeter is connected in series with the electrostatic precipitator system.

4. The electric field operating parameter detection device for an electrostatic precipitator according to claim 1, characterized in that: The DC high voltage divider is connected to the low voltage display via a signal line, and the length of the signal line is at least 2 meters to ensure a safe distance.

5. The electric field operating parameter detection device for an electrostatic precipitator according to claim 2, characterized in that: The electrostatic precipitator and the high-voltage power supply, and the DC high-voltage voltage divider and the high-voltage power supply are connected via high-voltage cables, and the high-voltage cables are arranged overhead.

6. The electric field operating parameter detection device for an electrostatic precipitator according to claim 2 or 5, characterized in that: The shells of the electrostatic precipitator, the high-voltage power supply and the DC high-voltage divider are all grounded.

7. The device for detecting electric field operation parameters of an electrostatic precipitator according to any one of claims 1 to 5, characterized in that: The camera and the digital DC high-voltage microammeter are arranged at a distance of more than 500 mm to avoid interference between high-voltage electricity and low-voltage signal transmission.

8. The device for detecting electric field operating parameters of an electrostatic precipitator according to claim 7, characterized in that: The top and base of the digital DC high-voltage microammeter are respectively provided with an electric signal input terminal and an electric signal output terminal. The electric signal input terminal is introduced through a high-voltage cable, and the electric signal output terminal is led out through a high-voltage cable.

9. The electric field operating parameter detection device for an electrostatic precipitator according to claim 8, characterized in that: The digital DC high-voltage microammeter is provided with an insulating fixed support, and the material of the insulating fixed support is polymethyl methacrylate, polytetrafluoroethylene or high-alumina porcelain.

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