Constant-temperature and constant-humidity high-pressure slip ring box equipment

Abstract

The utility model discloses constant-temperature and constant-humidity high-voltage slip ring box equipment, which belongs to the technical field of electrical automation control and comprises a slip ring box, a control system PLC (programmable logic controller) and a touch screen. An intelligent dehumidifier is arranged on one side in the slip ring box, and an electric heater is arranged on the other side in the slip ring box; a drain pipe is arranged at the lower end of the intelligent dehumidifier, penetrates through a first waterproof gland on the slip ring box and extends to the outside; a semiconductor dehumidification mechanism, a temperature and humidity sensor and a fan are arranged in the intelligent dehumidifier; the control system PLC is connected with the intelligent dehumidifier and the touch screen; and the intelligent dehumidifier is connected with the electric heater. The main purpose of the utility model is to control the temperature and humidity in the slip ring box, ensure that no condensation exists in the slip ring box, avoid faults such as short circuit of equipment caused by overhigh humidity, and effectively prevent the equipment from rusting and damage.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical automation control, in particular to a high-voltage slip ring box device with constant temperature and humidity. Background Art

[0002] Since high-voltage cable reel slip ring boxes are typically used outdoors, such as in places with large temperature differences and high humidity, such as ports and docks, and since the slip ring box body is made of stainless steel, condensation and water accumulation are likely to occur inside the box, leading to phase short circuits or grounding, which may cause tripping, power outages, and in serious cases, endanger the safe operation of the power grid. Existing slip ring box dehumidification methods simply heat the slip ring box after the temperature and humidity controller detects the temperature and humidity, maintaining the temperature inside the box higher than the external temperature to prevent condensation and water accumulation inside the box. Because traditional temperature and humidity controllers cannot transmit signals and lack active dehumidification functions, they cannot control the temperature and humidity inside the box if damaged, which poses a relatively large risk and is not conducive to the long-term stable operation of the equipment.

[0003] In view of this, we designed a slip ring box and control system with an intelligent dehumidification device, which can meet the needs of temperature and humidity control, monitoring status, and intelligent control of the slip ring box. Utility Model Content

[0004] In response to the above problems, the utility model provides a constant temperature and humidity high-voltage slip ring box device. Its main purpose is to control the temperature and humidity inside the slip ring box, ensure that there is no condensation in the slip ring box, and prevent the equipment from short-circuiting and other faults due to excessive humidity. At the same time, it can also effectively prevent the equipment from rusting and damage.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A constant temperature and humidity high-voltage slip ring box device comprises a slip ring box, a control system PLC, and a touch screen. An intelligent dehumidifier is provided on one side of the slip ring box, and an electric heater is provided on the other side. A drain pipe is provided at the lower end of the intelligent dehumidifier, and extends to the outside through a first waterproof gland on the slip ring box. The intelligent dehumidifier internally comprises a semiconductor dehumidification mechanism, a temperature and humidity sensor, and a fan. The control system PLC is connected to the intelligent dehumidifier and the touch screen. The intelligent dehumidifier is connected to the electric heater.

[0007] As a further improvement to the above solution, a pressure compensator is installed on the outer wall of the slip ring box. This arrangement balances the pressure difference between the inside and outside of the slip ring box, preventing box deformation or seal failure caused by pressure imbalance, thereby improving the stability and service life of the equipment.

[0008] As a further improvement to the above solution, the intelligent dehumidifier is equipped with an alarm. The dehumidifier has an alarm output function, which is connected to the PLC via 485 communication. It can output detected abnormal conditions (such as dehumidifier failure, temperature and humidity out of range, etc.). The PLC receives the fault signal and issues a warning, displaying the relevant alarm and solution on the touch screen.

[0009] As a further improvement to the above solution, the control system PLC and touch screen are installed externally, independent of the slip ring box. Installing the control system PLC and touch screen externally, independent of the slip ring box, makes it easier for operators to monitor and control the status of the slip ring box. It also reduces the impact of the external environment on the control system and improves system stability.

[0010] As a further improvement to the above solution, the electric heater comprises a transversely distributed box with open ends. The box houses an electric heating wire inside, and both ends are secured to the slip ring housing via connecting rods. This transversely distributed design of the electric heater ensures more uniform heating, effectively preventing localized overheating or insufficient heating, ensuring a uniform temperature within the slip ring housing, and improving dehumidification effectiveness and equipment operational safety.

[0011] As a further improvement to the above solution, the slip ring housing has an outwardly protruding side to form a mounting cavity, within which the intelligent dehumidifier is mounted. A removable second cover is provided on the outside of the mounting cavity. This outwardly protruding side of the slip ring housing forms a mounting cavity, and the removable second cover facilitates installation and maintenance of the intelligent dehumidifier, while protecting the dehumidifier from environmental influences, improving the device's durability and ease of maintenance.

[0012] As a further improvement to the above solution, a removable third cover is provided on the outer wall of the slip ring box on one side of the electric heater. Providing a removable third cover on the outer wall of the slip ring box on the electric heater side facilitates maintenance and inspection of the electric heater and also helps keep the interior of the slip ring box clean and dry.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model realizes precise control of temperature and humidity inside the slip ring box by integrating multiple devices and technologies such as intelligent dehumidifier, electric heater, control system PLC, touch screen and alarm, effectively preventing equipment failure caused by condensation and excessive humidity, and improving the stability and safety of the equipment.

[0015] The maintenance convenience and durability of the equipment are enhanced by setting up the control system and touch screen independently, and providing a removable cover on the outside of the slip ring box.

[0016] The overall design takes into account the challenges of the outdoor environment, such as large temperature differences and high humidity. Through intelligent and automated control methods, it ensures that the slip ring box can operate stably in various environments, ensuring the safe operation of the power grid and the long-term stable use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of slip ring box.

[0018] Figure 2 This is a schematic diagram of the end face structure of the slip ring box.

[0019] Figure 3 This is the control system diagram.

[0020] In the figure: 1. First cover plate; 2. Mounting cavity; 3. Slip ring box; 4. Support insulator fixing plate; 5. Second cover plate; 6. Support insulator; 7. Slip ring assembly; 8. Third cover plate; 10. Carbon brush and brush holder assembly; 12. Intelligent dehumidifier; 13. Temperature and humidity sensor; 14. Pressure compensator; 15. Electric heater; 20. Cable sealing module; 21. First waterproof gland; 22. Drain pipe; 23. Second waterproof gland; 24. 485 communication; 25. Control system PLC; 26. Ethernet connection; 27. Touch screen. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution, the present invention is described in detail below in conjunction with the embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0022] like Figure 1-3 As shown, the specific scheme of this embodiment is: a constant temperature and humidity high-voltage slip ring box device, including a slip ring box 3, a control system PLC25, and a touch screen 27; an intelligent dehumidifier 12 is provided on one side of the slip ring box 3, and an electric heater 15 is provided on the other side; a drain pipe 22 is provided at the lower end of the intelligent dehumidifier 12, and the drain pipe 22 extends to the outside through a first waterproof gland 21 on the slip ring box 3; the intelligent dehumidifier 12 includes a semiconductor dehumidification mechanism, a temperature and humidity sensor 13, and a fan; the control system PLC25 is connected to the intelligent dehumidifier 12 and the touch screen 27; the intelligent dehumidifier 12 is connected to the electric heater 15.

[0023] Specifically, the slip ring box 3 has a first cover plate 1 at the top, which contains a support insulator fixing plate 4, below which are mounted support insulators 6, and below which is a slip ring assembly 7, which is equipped with carbon brushes and a carbon brush assembly. A cable sealing module 20 is provided on the bottom side of the slip ring box 3 for installing cables.

[0024] like Figure 1As shown, as a preferred embodiment of the above embodiment, a pressure compensator 14 is provided on the outer wall of the slip ring box 3 .

[0025] As a preferred embodiment of the above embodiment, an alarm is provided in the intelligent dehumidifier 12. The intelligent dehumidifier 12 is connected to the control system PLC 25 via 485 communication mode to output an alarm.

[0026] As a preferred embodiment of the above embodiment, the control system PLC 25 and the touch screen 27 are independently arranged outside the slip ring box 3 .

[0027] As a preferred embodiment of the above, the electric heater 15 includes a transversely distributed box body with open upper and lower ends, an electric heating wire arranged inside, and both ends of the box body are fixed to the slip ring box 3 through connecting rods.

[0028] like Figure 2 As shown, as a preferred embodiment of the above embodiment, one side of the slip ring box 3 protrudes outward to form an installation cavity 2, and the intelligent dehumidifier 12 is arranged in the installation cavity 2; a detachable second cover plate 5 is provided on the outside of the installation cavity 2.

[0029] like Figure 2 As shown, as a preferred embodiment of the above embodiment, a detachable third cover plate 8 is provided on the outer wall of the slip ring box 3 on one side of the electric heater 15 .

[0030] The main purpose of the utility model is to control the temperature and humidity inside the slip ring box, ensure that there is no condensation in the slip ring box, and prevent the equipment from short circuiting and other faults due to excessive humidity. At the same time, it can also effectively prevent the equipment from rusting and being damaged.

[0031] The control system PLC reads the temperature and humidity signals of the dehumidifier, as well as the operating status information. The temperature and humidity are displayed on the touch screen, and the temperature and humidity are monitored. If they exceed the range, an alarm is issued. The start and stop parameters of the intelligent dehumidifier can also be set to ensure that the temperature and humidity are within the normal range.

[0032] The details are as follows:

[0033] 1. Intelligent dehumidifier: This component uses semiconductor refrigeration and dehumidification to actively draw the humid air in the enclosed space into the dehumidification air duct under the action of the fan. The water vapor in the air condenses into water after passing through the semiconductor refrigeration mechanism and is discharged from the cabinet through the water pipe.

[0034] 2. Temperature and humidity sensor: This component detects the temperature and humidity of the environment inside the cabinet and feeds back the signal to the intelligent dehumidification device.

[0035] 3. Electric heater: This component controls heating through the control signal of the intelligent dehumidification device.

[0036] 4. Second waterproof flange: This part is mainly used to connect the drainage pipe of the intelligent dehumidifier 12, and plays a waterproof sealing effect.

[0037] 5. Drain pipe 22: It is a high temperature resistant silicone tube. This part allows the condensed water of the dehumidifier to flow out of the cabinet under the action of gravity.

[0038] 6. The first waterproof gland: installed on the outer wall of the box, this part is mainly used to connect the power cord of the dehumidifier and the 485 communication line, and has a waterproof sealing effect.

[0039] 7. Slip ring box 3, which integrates the main mechanisms of the slip ring box, including support insulators, slip ring assembly, carbon brush and carbon brush holder assembly.

[0040] 8. 485 communication: the intelligent dehumidifier 12 is connected to the 485 communication nine-pin interface of the control system PLC through a two-core twisted pair cable.

[0041] Control system PLC: This component reads the temperature and humidity signals, operating status, and fault codes of the intelligent dehumidifier 12 through 485 communication, sets dehumidifier parameters such as start dehumidification humidity, stop dehumidification humidity, start heating temperature, etc., and determines dehumidifier failure and temperature and humidity out of range alarm.

[0042] Ethernet connection 26: The control system PLC 25 and the touch screen 27 are connected via a network cable, and the Ethernet connection 26 communicates.

[0043] Touch screen 27: This component is used to display the temperature and humidity values of the slip ring box 3, the operating status of the intelligent dehumidifier 12, the setting parameter display and settings, alarm display records, etc.

[0044] Working principle of this utility model:

[0045] like Figure 1-3 As shown, the control system is connected to the power supply of the intelligent dehumidifier 12, the wiring of the temperature and humidity sensor 13, the wiring of the electric heater 15, and the PLC communication line. After the power is turned on, the PLC communication reads the temperature and humidity signals of the intelligent dehumidifier 12, and sets the dehumidifier start and stop parameters through the touch screen 27. The intelligent dehumidifier 12 reads the temperature and humidity data inside the slip ring box 3. If the humidity of the slip ring box 3 exceeds the start dehumidification parameter, the device begins dehumidification. After a period of dehumidification, if the humidity of the slip ring box 3 falls below the stop dehumidification parameter, the intelligent dehumidifier 12 stops dehumidification. Condensed water during the dehumidification process flows out of the cabinet through the drain pipe, effectively dehumidifying the slip ring box 3.

[0046] At the same time, the heating temperature can be set through the touch screen 27. When the temperature of the slip ring box 3 is lower than the set temperature, the electric heater 15 starts to heat. When the heated temperature value is 5°C higher than the set temperature, the heating is turned off to ensure that the temperature inside the slip ring box 3 is within the normal range. If the temperature and humidity exceed the maximum and minimum ranges, the control system PLC determines that the temperature and humidity are abnormal and outputs an alarm signal to prompt maintenance personnel to inspect the intelligent dehumidifier in the slip ring box. The touch screen 27 will display and record the relevant alarm. The touch screen 27 will read the status of the intelligent dehumidifier 12 to check whether the device is operating normally. If it is not normal, there will be a related fault code. The cause of the fault can be determined according to the manual, and the cause can be found and the fault can be resolved. At the same time, the temperature and humidity signals, fault signals and operating status can be fed back to the central control system or host computer, etc., to facilitate integrated signal diagnosis of faults.

[0047] The above control method can detect abnormal temperature and humidity inside the slip ring box in advance, prevent creepage and flashover accidents caused by condensation inside the equipment, ensure the safe operation of the power grid system, and play a key role in the long life, safe and effective use of electrical equipment.

[0048] Examples:

[0049] Some models of high-voltage cable reels at port terminals of our company have adopted this type of slip ring box with intelligent dehumidification device and control system.

[0050] Slip ring box with intelligent dehumidifier and control system parameters:

[0051] Slip ring box: KTC400-10KV Intelligent dehumidifier model: SDCS-L60 Control system PLC: Siemens 1215C Touch screen: Weiluntong MT8072iE.

[0052] It should be noted that, in this article, the terms include, contain or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising 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. Specific examples are used herein to illustrate the principles and implementation methods of the technical solution of the present utility model. The above examples are only used to help understand the method of the present utility model and its core idea. The above are only preferred implementation methods of the present utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should all be regarded as the scope of protection of the present utility model.

Claims

1. A constant temperature and humidity high-voltage slip ring box device, comprising a slip ring box (3), characterized in that: The invention also includes a control system PLC (25) and a touch screen (27); an intelligent dehumidifier (12) is provided on one side of the slip ring box (3), and an electric heater (15) is provided on the other side; a drainage pipe (22) is provided at the lower end of the intelligent dehumidifier (12), and the drainage pipe (22) passes through a first waterproof gland (21) on the slip ring box (3) and extends to the outside; the intelligent dehumidifier (12) includes a semiconductor dehumidification mechanism, a temperature and humidity sensor (13), and a fan; the control system PLC (25) is connected to the intelligent dehumidifier (12) and the touch screen (27); and the intelligent dehumidifier (12) is connected to the electric heater (15).

2. The constant temperature and humidity high-voltage slip ring box device according to claim 1, characterized in that: A pressure compensator (14) is provided on the outer wall of the slip ring box (3).

3. The constant temperature and humidity high-voltage slip ring box device according to claim 1, characterized in that: An alarm is provided in the intelligent dehumidifier (12).

4. The constant temperature and humidity high-voltage slip ring box device according to claim 1, characterized in that: The control system PLC (25) and the touch screen (27) are independently arranged outside the slip ring box (3).

5. The constant temperature and humidity high-voltage slip ring box device according to claim 1, characterized in that: The electric heater (15) comprises a transversely distributed box body, the upper and lower ends of the box body are open, an electric heating wire is arranged inside the box body, and the two ends of the box body are fixed to the slip ring box (3) through connecting rods.

6. The constant temperature and humidity high-voltage slip ring box device according to claim 1, characterized in that: One side of the slip ring box (3) protrudes outward to form an installation cavity (2), and the intelligent dehumidifier (12) is arranged in the installation cavity (2); a detachable second cover plate (5) is provided outside the installation cavity (2).

7. The constant temperature and humidity high-voltage slip ring box device according to claim 1, characterized in that: The slip ring box (3) is provided with a detachable third cover plate (8) on an outer wall on one side of the electric heater (15).

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