CN116231473B - Switch board with automatic alarm function - Google Patents
Switch board with automatic alarm function Download PDFInfo
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- CN116231473B CN116231473B CN202310525540.0A CN202310525540A CN116231473B CN 116231473 B CN116231473 B CN 116231473B CN 202310525540 A CN202310525540 A CN 202310525540A CN 116231473 B CN116231473 B CN 116231473B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Automation & Control Theory (AREA)
- Air Conditioning Control Device (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a power distribution cabinet with an automatic alarm function, which belongs to the technical field of power distribution cabinets, and comprises the following main equipment: the utility model provides a switch board shell, cooling device, inside temperature and humidity detection device, outside temperature and humidity detection device, intelligent camera, the alarm bell, the warning light, the brush piece motor, the water catch bowl, the fan group, well accuse system, wherein, well accuse system carries out contrast analysis with inside and outside temperature and humidity detection device, select the most efficient cooling mode according to the analysis result, cooling efficiency has been improved, cooling device can dehumidify the switch board inside simultaneously, the risk of switch board because of the too high fault that causes of humidity has been reduced, and through cooling device, condensate water brush piece device and drainage ventilation unit's cooperation, when guaranteeing cooling efficiency, the potential safety hazard that the comdenstion water exists to the switch board has been avoided, the reliability of switch board has been improved.
Description
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with an automatic alarm function.
Background
The power distribution cabinet is the last-stage equipment of the power distribution system. The power distribution cabinet is a generic name of a motor control center. The power distribution cabinet is used in the occasions with dispersed load and less loops; the motor control center is used for occasions with concentrated load and more loops. They distribute the power of a circuit of the upper-level distribution equipment to nearby loads. This class of equipment should provide protection, monitoring and control of the load.
Chinese patent publication No.: CN113964678A discloses a switch board with temperature regulation function, relates to power equipment technical field. Including the switch board, be provided with heat abstractor in the switch board, heat abstractor includes the cooling tube, cooling tube top fixed mounting is in the switch board top, the cooling tube lower half sets up to plastics bullet property, rotate on the cooling tube inner wall and install the cooling fan, the pivot of cooling fan passes through belt drive with the pivot of disc and is connected, the disc rotates and installs on the switch board top inner wall, disc bottom fixed mounting has the cylinder, cylinder slidable mounting is in fork-shaped end of fork-shaped pole. This switch board with temperature regulation function through being provided with heat abstractor, when carrying out the operation of dispelling the heat to the switch board through radiator fan and cooling tube, fork shaped pole can drive the cooling tube lower half and swing to improve the radiating range of cooling tube, effectually solved the insufficient problem of heat dissipation.
The device does not set up inside temperature and humidity detection device, outside temperature and humidity detection device and cooling device, can't carry out contrast analysis to the inside and outside humiture of switch board, leads to can't select the most efficient cooling mode to reduce heat dissipation cooling efficiency, also can't dehumidify the switch board inside through cooling device, increased the risk that the switch board breaks down.
Disclosure of Invention
Therefore, the invention provides a power distribution cabinet with an automatic alarm function, which is used for solving the problem that the temperature and humidity inside and outside the power distribution cabinet cannot be compared and analyzed in the prior art, so that the most efficient cooling mode cannot be selected.
In order to achieve the above purpose, the invention provides a power distribution cabinet with an automatic alarm function;
the cooling device with the automatic alarm function can cool and dehumidify the power distribution cabinet, and when the cooling device cools, the condensed water brushing device cleans condensed water on the cooling device and cleans the condensed water into the drainage and ventilation device, and the drainage and ventilation device can control the start and stop of a fan in the drainage and ventilation device according to the cleaning frequency of the condensed water brushing device on the condensed water, so that the condensed water is discharged from the power distribution cabinet;
the power distribution cabinet with the automatic alarm function is provided with an internal temperature and humidity detection device and an external temperature and humidity detection device, wherein the internal temperature and humidity detection device and the external temperature and humidity detection device can detect the temperature and humidity inside and outside the power distribution cabinet and transmit the detection result to the central control system;
when the central control system judges that the temperature in the cabinet is not safe, the water draining and ventilating device and the cooling device are coordinated to perform combined work according to the conditions of the temperature outside the cabinet and the humidity outside the cabinet, and when the central control system judges that the humidity in the cabinet is not safe, the cooling device is controlled to dehumidify the power distribution cabinet;
when the cooling device operates, the central control system comprehensively analyzes the refrigerating power of the cooling device and the humidity condition in the power distribution cabinet, and determines the cleaning frequency of the condensed water brushing device on the cooling device according to the analysis result;
when the central control system controls the cooling device and the drainage ventilation device to adjust the temperature and humidity in the power distribution cabinet, the temperature and humidity information returned by the internal temperature and humidity detection device is analyzed, and whether an alarm needs to be sent out or not is judged according to the temperature and humidity change condition;
the central control system can analyze the image data in the cabinet collected by the intelligent camera and judge whether an alarm needs to be sent outwards according to an analysis result.
Further, the power distribution cabinet with the automatic alarm function comprises,
a power distribution cabinet housing disposed on the ground for fixing the internal components;
the cooling device is arranged inside the power distribution cabinet shell and comprises a cooling plate and a cooling machine, and is used for cooling and dehumidifying the inside of the power distribution cabinet;
the condensed water brushing device is arranged at the left side inside the power distribution cabinet shell and is used for cleaning condensed water on the cooling plate and preventing the condensed water from frosting;
the drainage and ventilation device is arranged below the cooling device and is used for draining condensed water out of the power distribution cabinet and ventilating the inside of the power distribution cabinet;
the internal temperature and humidity detection device is arranged inside the power distribution cabinet shell and is used for detecting the temperature and humidity inside the power distribution cabinet;
the external temperature and humidity detection device is arranged outside the power distribution cabinet shell and is used for detecting the temperature and humidity outside the power distribution cabinet;
the intelligent camera is arranged at the inner top of the power distribution cabinet shell and used for collecting images of the internal condition of the power distribution cabinet;
the alarm bell is arranged at the outer top of the power distribution cabinet shell and is provided with two alarm bell sounds of fault alarm and warning alarm;
the alarm lamp is arranged on the front surface of the power distribution cabinet shell and used for emitting alarm light;
the central control system is arranged inside the shell of the power distribution cabinet and is connected with the cooling device, the condensed water brushing device, the water draining and ventilating device and the internal temperature and humidity detection device, the external temperature and humidity detection device and the intelligent camera are connected with the alarm bell through a transmission line, and the central control system can coordinate and control each part to work.
In particular, the condensed water brush piece device comprises,
the brush piece is used for cleaning condensed water on the cooling plate;
the brush piece motor can drive the brush piece to move up and down so as to clean condensed water on the cooling plate;
the drainage and ventilation device comprises a drainage and ventilation device body,
a water collecting tank disposed below the cooling plate for collecting condensed water on the cooling plate;
the fan group comprises a left fan and a right fan which are respectively arranged at two sides of the water collecting tank, each fan is provided with a sealing shutter, the sealing shutter is automatically opened when each fan operates, and the central control system can control the opening and closing of the sealing shutter;
a fan blowing mode is stored in the central control system, and when the central control system starts the fan blowing mode, the left fan and the right fan can be controlled to blow air into the cabinet at the same time;
the central control system is internally provided with a cooling and dehumidifying mode, when the central control system starts the cooling and dehumidifying mode, the refrigerating power of the cooler can be determined according to the temperature in the cabinet, and the cooler is controlled to operate at the refrigerating power;
the central control system controls the left fan to blow air into the cabinet and controls the right fan to exhaust air into the cabinet when the brush motor is started, and controls the left fan and the right fan to restore to the original working state when the brush motor stops running.
Further, the central control system is internally stored with safe temperature and safe humidity;
the central control system is internally provided with a safety temperature warning coefficient and a safety humidity warning coefficient;
the central control system controls the internal temperature and humidity detection device to detect the temperature in the cabinet, and the internal temperature and humidity detection device transmits the temperature in the cabinet to the central control system;
the central control system controls the external temperature and humidity detection device to detect the temperature and humidity outside the cabinet, and the external temperature and humidity detection device transmits the temperature and humidity outside the cabinet to the central control system;
the central control system compares the temperature in the cabinet with the temperature outside the cabinet and the safe temperature respectively, and compares the humidity outside the cabinet with the safe humidity;
if the temperature in the cabinet is less than or equal to the safety temperature, the central control system judges that the temperature in the cabinet is safe;
if the temperature in the cabinet is greater than the safe temperature, the central control system judges that the temperature in the cabinet is unsafe, and under the condition, the working modes of the fan group and the cooling device are judged according to the comparison result of the temperature outside the cabinet and the safe temperature and the comparison result of the humidity outside the cabinet and the safe humidity;
if the temperature outside the cabinet is less than or equal to the safe temperature multiplied by the safe temperature warning coefficient, and the humidity outside the cabinet is less than or equal to the safe humidity multiplied by the safe humidity warning coefficient, the central control system starts a fan blowing mode;
if the temperature outside the cabinet is less than or equal to the safe temperature multiplied by the safe temperature warning coefficient, and the numerical value of the humidity outside the cabinet is between the safe humidity and the product value of the safe humidity multiplied by the safe humidity warning coefficient, the central control system starts a fan blowing mode and starts a cooling dehumidifying mode;
if the temperature outside the cabinet is less than or equal to the safe temperature multiplied by the safe temperature warning coefficient and the humidity outside the cabinet is greater than the safe humidity, the central control system starts a cooling and dehumidifying mode;
if the temperature outside the cabinet is greater than the safe temperature and multiplied by the safe temperature warning coefficient, the central control system starts a cooling and dehumidifying mode.
Further, the central control system controls the internal temperature and humidity detection device to detect the humidity in the cabinet, and the internal temperature and humidity detection device transmits the humidity in the cabinet to the central control system;
the central control system compares the humidity in the cabinet with the safe humidity;
if the humidity in the cabinet is less than or equal to the safe humidity, the central control system judges that the humidity in the cabinet is safe and does not send an instruction to the outside;
if the humidity in the cabinet is greater than the safe humidity, the central control system judges that the humidity in the cabinet is unsafe and starts a cooling and dehumidifying mode;
the central control system is internally provided with a temperature difference power conversion coefficient and a humidity difference power conversion coefficient;
when the central control system starts a cooling dehumidification mode, the refrigeration power calculation mode of the cooler is determined by analyzing the temperature and the humidity in the cabinet;
if the central control system judges that the temperature in the cabinet is unsafe, setting the refrigeration power as the difference value of the temperature in the cabinet and the safe temperature multiplied by the temperature difference power conversion coefficient;
if the central control system judges that the temperature in the cabinet is safe and the humidity in the cabinet is unsafe, the refrigeration power is set to be the difference value between the humidity in the cabinet and the safe humidity multiplied by the humidity difference power conversion coefficient.
Particularly, a first temperature difference power conversion coefficient value, a second temperature difference power conversion coefficient value and a third temperature difference power conversion coefficient value are preset in the central control system;
a first temperature difference judgment value and a second temperature difference judgment value are preset in the central control system;
when the central control system starts a cooling and dehumidifying mode, comparing the difference value between the temperature in the cabinet and the safe temperature with the first temperature difference judgment value and the second temperature difference judgment value, and setting the numerical value of the temperature difference power conversion coefficient according to the comparison result;
if the difference value between the temperature in the cabinet and the safety temperature is smaller than or equal to the first temperature difference judging value, the central control system sets the numerical value of the temperature difference power conversion coefficient as the first temperature difference power conversion coefficient value;
if the difference value between the temperature in the cabinet and the safety temperature is larger than the first temperature difference judging value and smaller than the second temperature difference judging value, the central control system sets the value of the temperature difference power conversion coefficient as a second temperature difference power conversion coefficient value;
if the difference value between the temperature in the cabinet and the safety temperature is larger than or equal to the second temperature difference judging value, the central control system sets the value of the temperature difference power conversion coefficient as a third temperature difference power conversion coefficient value.
Further, when the central control system starts a cooling and dehumidifying mode, the brush motor is controlled to start, and the cleaning frequency of the brush motor is determined by comprehensively analyzing the refrigerating power of the cooler and the humidity in the cabinet;
each cleaning frequency value of the brush piece motor is stored in the central control system, and the cleaning frequency values comprise a first cleaning frequency, a second cleaning frequency and a third cleaning frequency;
the central control system stores a first brushing frequency scoring reference value and a second brushing frequency scoring reference value;
the central control system performs weighted summation on the refrigeration power and the humidity in the cabinet, calculates the frequency score of the brush piece, compares the frequency score of the brush piece with a first frequency score reference value and a second frequency score reference value respectively,
if the brush piece frequency score is smaller than or equal to a first brush piece frequency score reference value, the central control system controls the brush piece motor to run at a first cleaning frequency;
if the brush piece frequency score is larger than the first brush piece frequency score reference value and smaller than the second brush piece frequency score reference value, the central control system controls the brush piece motor to run at the second cleaning frequency;
and if the brush piece frequency score is greater than or equal to the second brush piece frequency score reference value, the central control system controls the brush piece motor to run at a third cleaning frequency.
Further, the central control system stores the cooling alarm time length and the cooling safety slope;
the central control system starts timing when the temperature in the cabinet is judged to be unsafe, and after the cooling alarm time is over, the central control system controls the internal temperature and humidity detection device to detect the temperature in the cabinet, and the internal temperature and humidity detection device transmits a detection result to the central control system;
the central control system calculates the ratio of the change of the temperature in the cabinet to the cooling alarm time length, and compares the ratio with the cooling safety slope;
if the ratio is greater than or equal to the cooling safety slope, the central control system judges that the cooling effect reaches the expected value;
if the ratio is smaller than the cooling safety slope, the central control system judges that the cooling effect is not expected, controls the alarm bell to start a fault alarm bell, controls the alarm lamp to flash, and sends temperature abnormality alarm information to management staff.
Further, the dehumidification alarm time length and the dehumidification safety slope are stored in the central control system;
the central control system starts timing when the humidity in the cabinet is judged to be unsafe, and after the dehumidification alarm time is over, the central control system controls the internal temperature and humidity detection device to detect the humidity in the cabinet, and the internal temperature and humidity detection device transmits a detection result to the central control system;
the central control system calculates the ratio of the humidity change in the cabinet to the dehumidification alarm time length, compares the ratio with the dehumidification safety slope,
if the ratio is greater than or equal to the dehumidification safety slope, the central control system judges that the dehumidification effect reaches the expected value;
if the ratio is smaller than the dehumidification safety slope, the central control system judges that dehumidification is not expected, controls the alarm bell to start a fault alarm bell, controls the alarm lamp to flash, and sends humidity abnormality alarm information to management staff.
Furthermore, the intelligent camera can monitor the environment in the cabinet;
when the intelligent camera monitors that smoke appears in the cabinet, transmitting smoke image information to the central control system;
the central control system judges that smoke abnormality occurs in the cabinet, controls the fan group to stop running, controls the alarm bell to start a fault alarm bell, controls the alarm lamp to flash, and sends smoke abnormality alarm information to management staff;
when the intelligent camera monitors that animals appear in the cabinet, animal image information is transmitted to the central control system;
the central control system judges that biological abnormality occurs in the cabinet, controls the alarm bell to start an alarm bell, controls the alarm lamp to flash, and continuously controls the intelligent camera to collect animal information in the cabinet;
if the animals in the cabinet do not leave the power distribution cabinet after the warning alarm bell is finished, the central control system sends biological abnormal alarm information to management staff.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the central control system and the internal and external temperature and humidity detection devices are arranged to carry out comparative analysis on the internal and external temperature and humidity of the power distribution cabinet, the most efficient cooling mode is selected according to the analysis result, the cooling efficiency is improved, the cooling device is used for dehumidifying the inside of the power distribution cabinet, the risk of faults caused by overhigh humidity of the power distribution cabinet is reduced, and the cooling device is used for matching the condensed water brushing device with the drainage and ventilation device, so that the cooling efficiency is ensured, the potential safety hazard of condensed water to the power distribution cabinet is avoided, and the reliability of the power distribution cabinet is improved;
through setting up cooling device for the switch board can be when the outer temperature of cabinet is greater than safe temperature, carries out cooling to the temperature in the cabinet through cooling device, and can dehumidify the cabinet internal environment under the airtight state of switch board, improved the self-regulating ability of switch board;
by arranging the condensed water brushing device, the condensed water on the cooling plate can be cleaned in time, so that potential safety hazards of electronic equipment in the power distribution cabinet are eliminated, and the problem of cooling efficiency reduction caused by frosting of the condensed water on the cooling plate is avoided;
the central control system is used for comparing the temperature and the humidity inside and outside the power distribution cabinet, so that the damage to the temperature and the humidity inside the cabinet caused by the fact that the central control system continuously starts a fan blowing mode when the temperature outside the cabinet is greater than the safe temperature or the humidity outside the cabinet is greater than the safe humidity is avoided;
the central control system analyzes and calculates the refrigeration power and the humidity in the cabinet to determine the cleaning frequency of the brush motor, so that the brush motor can clean the cooling plate according to the speed of condensate water generation, the damage caused by condensate water frosting of the cooling plate is avoided, and the energy consumption of the brush motor is reduced;
the central control system detects the temperature and humidity regulation result in the cabinet, so that the cooling and dehumidifying effects can be guaranteed, and when the internal regulating equipment of the power distribution cabinet cannot meet the regulation and control of the temperature and humidity in the cabinet, the central control system can timely and externally send out an alarm signal, and the loss of accidents is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a power distribution cabinet with an automatic alarm function in an embodiment of the invention;
fig. 2 is a schematic side view of a power distribution cabinet with an automatic alarm function according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a power distribution cabinet with an automatic alarm function in an embodiment of the invention; FIG. 2 is a schematic side view of a power distribution cabinet with an automatic alarm function in an embodiment of the invention;
the invention provides a power distribution cabinet with an automatic alarm function, which comprises,
a power distribution cabinet housing 1 provided on the ground for fixing internal components;
the cooling device 2 is arranged inside the power distribution cabinet shell 1 and comprises a cooling plate 21 and a cooling machine 22, and is used for cooling and dehumidifying the inside of the power distribution cabinet;
the condensed water brushing device 3 is arranged at the left side inside the power distribution cabinet shell 1 and is used for cleaning condensed water on the cooling plate 21 and preventing the condensed water from frosting;
a drainage and ventilation device 4, which is arranged below the cooling device 2 and is used for draining condensed water out of the power distribution cabinet and ventilating the inside of the power distribution cabinet;
the internal temperature and humidity detection device 5 is arranged inside the power distribution cabinet shell 1 and is used for detecting the temperature and humidity inside the power distribution cabinet;
the external temperature and humidity detection device 6 is arranged outside the power distribution cabinet shell 1 and is used for detecting the temperature and humidity outside the power distribution cabinet;
the intelligent camera 7 is arranged at the inner top of the power distribution cabinet shell 1 and is used for collecting images of the internal condition of the power distribution cabinet;
the alarm bell 8 is arranged at the top outside the power distribution cabinet shell 1 and is provided with two alarm bell sounds of fault alarm and warning alarm;
the alarm lamp 9 is arranged on the front surface of the power distribution cabinet shell 1 and is used for emitting alarm light;
the central control system 10 is arranged inside the power distribution cabinet shell 1 and is connected with the cooling device 2, the condensed water brushing device 3, the water draining and ventilating device 4, the internal temperature and humidity detecting device 5, the external temperature and humidity detecting device 6, the intelligent camera 7, the alarm bell 8 and the alarm lamp 9 are connected through a transmission line, and the central control system 10 can coordinate and control each component to work.
If cooling device 2 is not set up, when the outer temperature of cabinet is greater than safe temperature, can't cool down the cooling to the switch board through the mode that the fan bloied to can't dehumidify the interior environment of cabinet under the inclosed state of switch board, reduced the self-regulating ability of switch board, through setting up cooling device 2, make the switch board can be when the outer temperature of cabinet is greater than safe temperature, cool down the interior temperature of cabinet through cooling device 2, and can dehumidify the interior environment of cabinet under the inclosed state of switch board, improved the self-regulating ability of switch board.
Further, the condensed water brush piece device 3 comprises,
a brush 31 for cleaning condensed water on the cooling plate 21;
a brush motor 32 capable of driving the brush 31 to move up and down to clean the condensed water on the cooling plate 21;
the drainage and ventilation device 4 comprises,
a water collecting tank 41 provided below the cooling plate 21 for collecting condensed water on the cooling plate 21;
the fan group comprises a left fan 42 and a right fan 43 which are respectively arranged at two sides of the water collecting tank 41, each fan is provided with a sealing shutter which is automatically opened when each fan operates, and the central control system 10 can control the opening and closing of the sealing shutter;
a fan blowing mode is stored in the central control system 10, and when the central control system 10 starts the fan blowing mode, the left fan 42 and the right fan 43 can be controlled to blow air into the cabinet at the same time;
the central control system 10 is stored with a cooling and dehumidifying mode, when the central control system 10 starts the cooling and dehumidifying mode, the refrigerating power of the cooler 22 can be determined according to the temperature in the cabinet, and the cooler 22 is controlled to operate with the refrigerating power;
the central control system 10 stores a fan drainage action, when the brush motor 32 is started, the central control system 10 controls the left fan 42 to blow air into the cabinet and controls the right fan 43 to exhaust air into the cabinet, and when the brush motor 32 stops running, the central control system 10 controls the left fan 42 and the right fan 43 to restore to the original working state;
if the power distribution cabinet is not provided with the condensed water brushing device 3, when the cooling device 2 cools the power distribution cabinet, the condensed water on the cooling plate 21 has a larger potential safety hazard to the electronic equipment inside the power distribution cabinet, and the condensed water on the cooling plate 21 can be cleaned in time by arranging the condensed water brushing device 3, so that the potential safety hazard of the electronic equipment inside the power distribution cabinet is eliminated, and meanwhile, the problem that the cooling efficiency is reduced due to frosting of the condensed water on the cooling plate 21 is avoided.
Further, the central control system 10 stores a safe temperature Ca and a safe humidity Sa;
the central control system 10 controls the internal temperature and humidity detection device 5 to detect the temperature in the cabinet, and the internal temperature and humidity detection device 5 transmits the temperature Ci in the cabinet to the central control system 10;
the central control system 10 controls the external temperature and humidity detection device 6 to detect the temperature and humidity outside the cabinet, and the external temperature and humidity detection device 6 transmits the temperature Co and humidity So outside the cabinet to the central control system 10;
the central control system 10 compares Ci with Ca and Co respectively, and compares So with Sa;
if Ci is less than or equal to Ca, the central control system 10 judges that the temperature in the cabinet is safe and does not send out an instruction to the outside;
if Ci is more than Ca, co is less than or equal to Ca×u and So is less than or equal to Sa×v, the central control system 10 judges that the temperature in the cabinet is unsafe and starts a fan blowing mode;
if Ci > Ca, co less than or equal to Ca×u and Sa more than or equal to So > Sa×v are satisfied at the same time, the central control system 10 judges that the temperature in the cabinet is unsafe, and starts a fan blowing mode and a cooling and dehumidifying mode;
if Ci is more than Ca, co is less than or equal to Ca×u and So is more than Sa, the central control system 10 judges that the temperature in the cabinet is unsafe, judges that the humidity outside the cabinet is unsafe, and starts a cooling and dehumidifying mode;
if Ci > Ca and Co > Ca×u are satisfied at the same time, the central control system 10 judges that the temperature in the cabinet is unsafe, and starts a cooling and dehumidifying mode;
where u is a preset safety temperature warning coefficient in the central control system 10, v is a preset safety humidity warning coefficient in the central control system 10, and 0 < u < 1,0 < v < 1.
If the central control system 10 does not compare and analyze the temperature and humidity inside and outside the power distribution cabinet, when the temperature outside the cabinet is greater than the safe temperature or the humidity outside the cabinet is greater than the safe humidity, the central control system 10 continues to start the fan blowing mode, the temperature and humidity outside the cabinet causes damage to the temperature and humidity inside the cabinet, so that the safety risk inside the cabinet is caused, and the central control system 10 avoids damage to the temperature and humidity inside the cabinet when the temperature outside the cabinet is greater than the safe temperature or the humidity outside the cabinet is greater than the safe humidity by comparing the temperature and humidity inside the power distribution cabinet.
Further, the central control system 10 controls the internal temperature and humidity detecting device 5 to detect the humidity in the cabinet, and the internal temperature and humidity detecting device 5 transmits the humidity Si in the cabinet to the central control system 10;
the central control system 10 compares Si with Sa;
if Si is less than or equal to Sa, the central control system 10 judges that the humidity in the cabinet is safe and does not send out an instruction;
if Si > Sa, the central control system 10 determines that the humidity in the cabinet is unsafe and starts the cooling dehumidification mode.
Further, when the central control system 10 starts the cooling and dehumidifying mode, the cooling power W of the cooler 22 is determined by analyzing the temperature and humidity in the cabinet;
if the central control system 10 determines that the temperature in the cabinet is unsafe, setting w=r× (Ci-Ca);
if the central control system 10 determines that the temperature in the cabinet is safe and the humidity in the cabinet is unsafe, setting w=y× (Si-Sa);
where r is a temperature difference power conversion coefficient set in the central control system 10, and y is a humidity difference power conversion coefficient value set in the central control system 10.
Further, a first temperature difference evaluation value Cs1 and a second temperature difference evaluation value Cs2 are preset in the central control system 10;
when the central control system 10 starts a cooling and dehumidifying mode, the difference value between the temperature Ci in the cabinet and the safety temperature Ca is compared with the first temperature difference judgment value and the second temperature difference judgment value, and the numerical value of the temperature difference power conversion coefficient is set;
if ci—ca is less than or equal to Cs1, the central control system 10 sets r=r1;
if Cs1 < Ci-Ca < Cs2, the central control system 10 sets r=r2;
if Ci-Ca is greater than or equal to Cs2, the central control system 10 sets r=r3;
wherein r1 is a first thermoelectric power conversion coefficient value stored in the central control system 10, r2 is a second thermoelectric power conversion coefficient value stored in the central control system 10, and r3 is a third thermoelectric power conversion coefficient value stored in the central control system 10.
Further, when the central control system 10 starts the cooling and dehumidifying mode, the brush motor 32 is controlled to start, and the cleaning frequency of the brush motor 32 is determined by analyzing the refrigerating power W of the cooler 22 and the humidity Si in the cabinet;
the central control system 10 is internally provided with a brush frequency score F, and f=b×w+d×si is set, wherein b is a power score coefficient, and d is a humidity score coefficient;
the central control system 10 is internally provided with a first brush frequency grading reference value Fk1 and a second brush frequency grading reference value Fk2, and Fk1 is smaller than Fk2;
the central control system 10 compares the brush frequency score F with the first brush frequency score reference value Fk1 and the second brush frequency score reference value Fk2,
if F is less than or equal to Fk1, the central control system 10 controls the brush piece motor 32 to take P1 as cleaning frequency;
if Fk1 is less than F and less than Fk2, the central control system 10 controls the brush piece motor 32 to take P2 as cleaning frequency;
if F is greater than or equal to Fk2, the central control system 10 controls the brush motor 32 to take P3 as the cleaning frequency.
The central control system 10 analyzes and calculates the refrigerating power and the humidity in the cabinet to determine the cleaning frequency of the brush piece motor 32, so that the brush piece motor 32 can clean the cooling plate 21 according to the speed of condensate water generation, the damage caused by condensate water frosting of the cooling plate 21 is avoided, and the energy consumption of the brush piece motor 32 is reduced.
Further, after the central control system 10 determines that the temperature in the cabinet is unsafe, the internal temperature and humidity detection device 5 is controlled to detect the temperature in the cabinet after the time t1 elapses, and the internal temperature and humidity detection device 5 transmits the detection result Ci' to the central control system 10;
the central control system 10 performs analysis and calculation of Ci' and Ci,
if |Ci' -Ci|t 1 is greater than or equal to k1, the central control system 10 judges that the cooling reaches the expected value;
if |Ci' -Ci|t 1 is smaller than k1, the central control system 10 judges that the temperature reduction is not expected, controls the alarm bell 8 to start a fault alarm bell, controls the alarm lamp 9 to flash, and sends temperature abnormality alarm information to a manager;
wherein t1 is the cooling alarm time length stored in the central control system 10, and k1 is the cooling safety slope stored in the central control system 10.
Further, after the central control system 10 determines that the humidity in the cabinet is unsafe, the internal temperature and humidity detection device 5 is controlled to detect the humidity in the cabinet after the time t2 elapses, and the internal temperature and humidity detection device 5 transmits the detection result Si' to the central control system 10;
the central control system 10 performs analytical calculations on Si' and Si,
if |Si' -Si|t 2 is greater than or equal to k2, the central control system 10 determines that dehumidification is expected;
if |Si' -Si|t 2 < k2, the central control system 10 judges that dehumidification is not expected, controls the alarm bell 8 to turn on a fault alarm bell, controls the alarm lamp 9 to flash, and sends humidity abnormality alarm information to a manager;
wherein t2 is the dehumidification alarm time length stored in the central control system 10, and k2 is the dehumidification safety slope stored in the central control system 10.
The central control system 10 detects the temperature and humidity regulation result in the cabinet, so that the cooling and dehumidifying effects can be ensured, and when the internal regulating equipment of the power distribution cabinet cannot meet the regulation and control of the temperature and humidity in the cabinet, the central control system 10 can timely and externally send out an alarm signal, and the loss of accidents is reduced.
Further, the intelligent camera 7 can monitor the environment in the cabinet;
when the intelligent camera 7 monitors that smoke appears in the cabinet, smoke image information is transmitted to the central control system 10;
the central control system 10 judges that smoke abnormality occurs in the cabinet, controls the fan group to stop running, controls the alarm bell 8 to start a fault alarm bell, controls the alarm lamp 9 to flash, and sends smoke abnormality alarm information to management staff;
when the intelligent camera 7 monitors that animals appear in the cabinet, animal image information is transmitted to the central control system 10;
the central control system 10 judges that biological abnormality occurs in the cabinet, controls the alarm bell 8 to start an alarm bell, controls the alarm lamp 9 to flash, and continuously controls the intelligent camera 7 to collect animal information in the cabinet;
if the animals in the cabinet do not leave the power distribution cabinet after the alarm bell is finished, the central control system 10 sends the biological abnormality alarm information to the manager.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
Claims (8)
1. A power distribution cabinet with an automatic alarm function is characterized by comprising,
a power distribution cabinet housing disposed on the ground for fixing the internal components;
the cooling device is arranged inside the power distribution cabinet shell and comprises a cooling plate and a cooling machine, and is used for cooling and dehumidifying the inside of the power distribution cabinet;
the condensed water brushing device is arranged at the left side inside the power distribution cabinet shell and is used for cleaning condensed water on the cooling plate and preventing the condensed water from frosting;
the drainage and ventilation device is arranged below the cooling device and is used for draining condensed water out of the power distribution cabinet and ventilating the inside of the power distribution cabinet;
the internal temperature and humidity detection device is arranged inside the power distribution cabinet shell and is used for detecting the temperature and humidity inside the power distribution cabinet;
the external temperature and humidity detection device is arranged outside the power distribution cabinet shell and is used for detecting the temperature and humidity outside the power distribution cabinet;
the intelligent camera is arranged at the inner top of the power distribution cabinet shell and used for collecting images of the internal condition of the power distribution cabinet;
the alarm bell is arranged at the outer top of the power distribution cabinet shell and is provided with two alarm bell sounds of fault alarm and warning alarm;
the alarm lamp is arranged on the front surface of the power distribution cabinet shell and used for emitting alarm light;
the central control system is arranged inside the power distribution cabinet shell, is connected with the cooling device, the condensed water brushing device, the water draining and ventilating device, the internal temperature and humidity detection device, the external temperature and humidity detection device and the intelligent camera, the alarm bell is connected with the alarm lamp through a transmission line, and the central control system can coordinate and control each component to work;
the condensed water brushing device comprises,
the brush piece is used for cleaning condensed water on the cooling plate;
the brush piece motor can drive the brush piece to move up and down so as to clean condensed water on the cooling plate;
the drainage and ventilation device comprises a drainage and ventilation device body,
a water collecting tank disposed below the cooling plate for collecting condensed water on the cooling plate;
the fan group comprises a left fan and a right fan which are respectively arranged at two sides of the water collecting tank, each fan is provided with a sealing shutter, the sealing shutter is automatically opened when each fan operates, and the central control system can control the opening and closing of the sealing shutter;
a fan blowing mode is stored in the central control system, and when the central control system starts the fan blowing mode, the left fan and the right fan can be controlled to blow air into the cabinet at the same time;
the central control system is internally provided with a cooling and dehumidifying mode, when the central control system starts the cooling and dehumidifying mode, the refrigerating power of the cooler can be determined according to the temperature in the cabinet, and the cooler is controlled to operate at the refrigerating power;
the central control system controls the left fan to blow air into the cabinet and controls the right fan to exhaust air into the cabinet when the brushing motor is started, and controls the left fan and the right fan to restore to the original working state when the brushing motor stops running;
when the cooling device can cool the power distribution cabinet, the condensed water brushing device can clean condensed water on the cooling device and clean the condensed water into the drainage and ventilation device, and the drainage and ventilation device can control the start and stop of a fan in the drainage and ventilation device according to the cleaning frequency of the condensed water brushing device to the condensed water, so that the condensed water is discharged from the power distribution cabinet;
when the central control system judges that the temperature in the cabinet is not safe, the water draining and ventilating device and the cooling device are coordinated to perform combined work according to the conditions of the temperature outside the cabinet and the humidity outside the cabinet, and when the central control system judges that the humidity in the cabinet is not safe, the cooling device is controlled to dehumidify the power distribution cabinet;
when the cooling device operates, the central control system comprehensively analyzes the refrigerating power of the cooling device and the humidity condition in the power distribution cabinet, and determines the cleaning frequency of the condensed water brushing device on the cooling device according to the analysis result;
when the central control system controls the cooling device and the water draining and ventilating device to adjust the temperature and humidity in the power distribution cabinet, the temperature and humidity information returned by the internal temperature and humidity detecting device is analyzed, and whether an alarm needs to be sent out or not is judged according to the temperature and humidity change condition;
the central control system can analyze the image data in the cabinet collected by the intelligent camera and judge whether an alarm needs to be sent outwards according to an analysis result.
2. The power distribution cabinet with the automatic alarm function according to claim 1, wherein a safe temperature and a safe humidity are stored in the central control system;
the central control system is internally provided with a safety temperature warning coefficient and a safety humidity warning coefficient;
the central control system controls the internal temperature and humidity detection device to detect the temperature in the cabinet, and the internal temperature and humidity detection device transmits the temperature in the cabinet to the central control system;
the central control system controls the external temperature and humidity detection device to detect the temperature and humidity outside the cabinet, and the external temperature and humidity detection device transmits the temperature and humidity outside the cabinet to the central control system;
the central control system compares the temperature in the cabinet with the temperature outside the cabinet and the safe temperature respectively, and compares the humidity outside the cabinet with the safe humidity;
if the temperature in the cabinet is less than or equal to the safety temperature, the central control system judges that the temperature in the cabinet is safe;
if the temperature in the cabinet is greater than the safe temperature, the central control system judges that the temperature in the cabinet is unsafe, and under the condition, the working modes of the fan group and the cooling device are judged according to the comparison result of the temperature outside the cabinet and the safe temperature and the comparison result of the humidity outside the cabinet and the safe humidity;
if the temperature outside the cabinet is less than or equal to the safe temperature multiplied by the safe temperature warning coefficient, and the humidity outside the cabinet is less than or equal to the safe humidity multiplied by the safe humidity warning coefficient, the central control system starts a fan blowing mode;
if the temperature outside the cabinet is less than or equal to the safe temperature multiplied by the safe temperature warning coefficient, and the numerical value of the humidity outside the cabinet is between the safe humidity and the product value of the safe humidity multiplied by the safe humidity warning coefficient, the central control system starts a fan blowing mode and starts a cooling dehumidifying mode;
if the temperature outside the cabinet is less than or equal to the safe temperature multiplied by the safe temperature warning coefficient and the humidity outside the cabinet is greater than the safe humidity, the central control system starts a cooling and dehumidifying mode;
if the temperature outside the cabinet is greater than the safe temperature and multiplied by the safe temperature warning coefficient, the central control system starts a cooling and dehumidifying mode.
3. The power distribution cabinet with an automatic alarm function according to claim 2, wherein the central control system controls the internal temperature and humidity detection device to detect the humidity in the cabinet, and the internal temperature and humidity detection device transmits the humidity in the cabinet to the central control system;
the central control system compares the humidity in the cabinet with the safe humidity;
if the humidity in the cabinet is less than or equal to the safe humidity, the central control system judges that the humidity in the cabinet is safe and does not send an instruction to the outside;
if the humidity in the cabinet is greater than the safe humidity, the central control system judges that the humidity in the cabinet is unsafe and starts a cooling and dehumidifying mode;
the central control system is internally provided with a temperature difference power conversion coefficient and a humidity difference power conversion coefficient;
when the central control system starts a cooling dehumidification mode, the refrigeration power calculation mode of the cooler is determined by analyzing the temperature and the humidity in the cabinet;
if the central control system judges that the temperature in the cabinet is unsafe, setting the refrigeration power as the difference value of the temperature in the cabinet and the safe temperature multiplied by the temperature difference power conversion coefficient;
if the central control system judges that the temperature in the cabinet is safe and the humidity in the cabinet is unsafe, the refrigeration power is set to be the difference value between the humidity in the cabinet and the safe humidity multiplied by the humidity difference power conversion coefficient.
4. The power distribution cabinet with an automatic alarm function according to claim 3, wherein a first temperature difference power conversion coefficient value, a second temperature difference power conversion coefficient value and a third temperature difference power conversion coefficient value are preset in the central control system;
a first temperature difference judgment value and a second temperature difference judgment value are preset in the central control system;
when the central control system starts a cooling and dehumidifying mode, comparing the difference value between the temperature in the cabinet and the safe temperature with the first temperature difference judgment value and the second temperature difference judgment value, and setting the numerical value of the temperature difference power conversion coefficient according to the comparison result;
if the difference value between the temperature in the cabinet and the safety temperature is smaller than or equal to the first temperature difference judging value, the central control system sets the numerical value of the temperature difference power conversion coefficient as the first temperature difference power conversion coefficient value;
if the difference value between the temperature in the cabinet and the safety temperature is larger than the first temperature difference judging value and smaller than the second temperature difference judging value, the central control system sets the value of the temperature difference power conversion coefficient as a second temperature difference power conversion coefficient value;
if the difference value between the temperature in the cabinet and the safety temperature is larger than or equal to the second temperature difference judging value, the central control system sets the value of the temperature difference power conversion coefficient as a third temperature difference power conversion coefficient value.
5. The power distribution cabinet with the automatic alarm function according to claim 4, wherein when the central control system starts a cooling dehumidification mode, the brush motor is controlled to start, and the cleaning frequency of the brush motor is determined by comprehensively analyzing the refrigerating power of the cooler and the humidity in the cabinet;
each cleaning frequency value of the brush piece motor is stored in the central control system, and the cleaning frequency values comprise a first cleaning frequency, a second cleaning frequency and a third cleaning frequency;
the central control system stores a first brushing frequency scoring reference value and a second brushing frequency scoring reference value;
the central control system performs weighted summation on the refrigeration power and the humidity in the cabinet, calculates the frequency score of the brush piece, compares the frequency score of the brush piece with a first frequency score reference value and a second frequency score reference value respectively,
if the brush piece frequency score is smaller than or equal to a first brush piece frequency score reference value, the central control system controls the brush piece motor to run at a first cleaning frequency;
if the brush piece frequency score is larger than the first brush piece frequency score reference value and smaller than the second brush piece frequency score reference value, the central control system controls the brush piece motor to run at the second cleaning frequency;
and if the brush piece frequency score is greater than or equal to the second brush piece frequency score reference value, the central control system controls the brush piece motor to run at a third cleaning frequency.
6. The power distribution cabinet with automatic alarm function according to claim 4, wherein,
the central control system stores the cooling alarm time length and the cooling safety slope;
the central control system starts timing when the temperature in the cabinet is judged to be unsafe, and after the cooling alarm time is over, the central control system controls the internal temperature and humidity detection device to detect the temperature in the cabinet, and the internal temperature and humidity detection device transmits a detection result to the central control system;
the central control system calculates the ratio of the change of the temperature in the cabinet to the cooling alarm time length, and compares the ratio with the cooling safety slope;
if the ratio is greater than or equal to the cooling safety slope, the central control system judges that the cooling effect reaches the expected value;
if the ratio is smaller than the cooling safety slope, the central control system judges that the cooling effect is not expected, controls the alarm bell to start a fault alarm bell, controls the alarm lamp to flash, and sends temperature abnormality alarm information to management staff.
7. The power distribution cabinet with the automatic alarm function according to claim 4, wherein dehumidification alarm duration and dehumidification safety slope are stored in the central control system;
the central control system starts timing when the humidity in the cabinet is judged to be unsafe, and after the dehumidification alarm time is over, the central control system controls the internal temperature and humidity detection device to detect the humidity in the cabinet, and the internal temperature and humidity detection device transmits a detection result to the central control system;
the central control system calculates the ratio of the humidity change in the cabinet to the dehumidification alarm time length, compares the ratio with the dehumidification safety slope,
if the ratio is greater than or equal to the dehumidification safety slope, the central control system judges that the dehumidification effect reaches the expected value;
if the ratio is smaller than the dehumidification safety slope, the central control system judges that dehumidification is not expected, controls the alarm bell to start a fault alarm bell, controls the alarm lamp to flash, and sends humidity abnormality alarm information to management staff.
8. The power distribution cabinet with an automatic alarm function according to claim 1, wherein the intelligent camera can monitor the environment in the cabinet;
when the intelligent camera monitors that smoke appears in the cabinet, transmitting smoke image information to the central control system;
the central control system judges that smoke abnormality occurs in the cabinet, controls the fan group to stop running, controls the alarm bell to start a fault alarm bell, controls the alarm lamp to flash, and sends smoke abnormality alarm information to management staff;
when the intelligent camera monitors that animals appear in the cabinet, animal image information is transmitted to the central control system;
the central control system judges that biological abnormality occurs in the cabinet, controls the alarm bell to start an alarm bell, controls the alarm lamp to flash, and continuously controls the intelligent camera to collect animal information in the cabinet;
if the animals in the cabinet do not leave the power distribution cabinet after the warning alarm bell is finished, the central control system sends biological abnormal alarm information to management staff.
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| CN116449898B (en) * | 2023-06-20 | 2023-09-22 | 江苏中盟电气设备有限公司 | Remote temperature and humidity control system for switch cabinet |
| CN116578146B (en) * | 2023-07-06 | 2023-09-22 | 南京欧控自动化有限公司 | Intelligent electrical cabinet control system |
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