CN115579775B - Energy-saving air conditioning system for power distribution cabinet - Google Patents
Energy-saving air conditioning system for power distribution cabinet Download PDFInfo
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- CN115579775B CN115579775B CN202211438808.9A CN202211438808A CN115579775B CN 115579775 B CN115579775 B CN 115579775B CN 202211438808 A CN202211438808 A CN 202211438808A CN 115579775 B CN115579775 B CN 115579775B
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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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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- 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
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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Abstract
The invention relates to the technology of environment control outside electrical equipment, in particular to an energy-saving air conditioning system for a power distribution cabinet, which comprises: the ventilation modules are positioned in the power distribution room, distributed on the periphery outside the power distribution cabinet and provided with a plurality of air ports positioned at different heights; the measuring module is used for measuring the temperature in the power distribution cabinet and the temperature of the corresponding air port; a moving module to move the tuyere of the ventilation module in a vertical direction; and the central control module is used for adjusting the temperature near the power distribution cabinet. The mode that utilizes to set up ventilation module, measuring module, removal module and well accuse module through contrast switch board, electricity distribution room and ambient temperature, adjusts the wind gap height, when effectively having promoted air conditioning reliability, has promoted switch board air conditioning's reliability.
Description
Technical Field
The invention relates to the technology of environment control outside electrical equipment, in particular to an energy-saving air conditioning system for a power distribution cabinet.
Background
As a power conditioning equipment, because of the power gradual increase of electrical appliances, the power of the power distribution cabinet is also increasingly large, and on the premise of not influencing the normal work of the power distribution cabinet, the improvement of the heat dissipation capacity of the power distribution cabinet becomes particularly important. Chinese patent application publication No.: CN106654926A discloses an energy-saving type power distribution cabinet air conditioning device and method, which effectively solve the problems of difficult temperature reduction of local hot spots, low humidity control precision and high energy consumption in the current power distribution room by using the ideas of one machine with multiple purposes, fixed-point heat dissipation and normal-temperature dehumidification, and realize energy-saving and efficient temperature reduction and dehumidification of a power distribution cabinet; chinese patent application publication no: CN106329345A discloses a switch board with can automatic cooling function, utilizes automatic control rotating electrical machines work, for the switch board cooling, when the switch board temperature drops to suitable temperature value, automatic control rotating electrical machines closes. Chinese patent application publication no: CN115000836A discloses a switch board and working method with heat dissipation function, when the inside temperature of switch board main part was too high, the air inlet fan was inhaled the outside air of base by the inlet port, was filtered by the dust screen and was gone into the inside of switch board main part, was cooled down to the inside of switch board main part.
Therefore, the technical scheme has the following problems: the influence of the outdoor temperature and the air pressure change generated in the distribution room can not be effectively utilized to cool the distribution cabinet, so that the energy is wasted.
Disclosure of Invention
Therefore, the invention provides an energy-saving air conditioning system for a power distribution cabinet, which is used for solving the problem that the influence of outdoor temperature and air pressure change generated in the power distribution cabinet per se on the power distribution cabinet cannot be effectively utilized to cool down in the prior art, so that energy is wasted, and the air conditioning reliability is influenced.
In order to achieve the above object, the present invention provides an energy-saving air conditioning system for a power distribution cabinet, comprising:
the ventilation module comprises a plurality of ventilation pipelines connected with air openings and is distributed around the outer periphery of the power distribution cabinet at a preset distance;
the measuring module comprises a plurality of first detecting devices which are respectively arranged on the inner side of the power distribution cabinet to measure the temperature in the power distribution cabinet and a plurality of second detecting devices which are respectively arranged at the air openings; for the first detection device, the distance between the first detection device and a corresponding electrical element in the power distribution cabinet is preset, and for each second detection device, the distance between the second detection device and a corresponding air opening is preset;
the moving module is connected with the ventilation module and used for moving the air opening of the ventilation module in the vertical direction;
and the central control module is respectively connected with the mobile module and the measuring module and used for adjusting the temperature near the power distribution cabinet.
Furthermore, for a single air opening, the air openings are arranged outside the power distribution cabinet at different heights, each second detection device is connected with the central control module and used for conveying the measured temperature value of each air opening to the central control module, for the ith air opening, the measured temperature of the air opening is recorded as Ti by the measuring module, wherein i =1,2,3, …, n, n is the maximum number of the air openings, the central control module is provided with a first preset temperature T alpha and a second preset temperature T beta, wherein T alpha is more than 0 and less than T beta, the first preset temperature T alpha is the maximum pressure threshold temperature, the second preset temperature T beta is the maximum critical temperature, the central control module judges the air pressure near the air opening by comparing the Ti with the T alpha and the T beta,
if Ti is less than or equal to T alpha, the central control module preliminarily judges that the temperature of the ith air port cannot cause the air pressure near the ith air port to rise, and further judges the air flow direction in the power distribution room according to the temperature in the power distribution cabinet;
if T alpha is larger than Ti and smaller than or equal to T beta, the central control module judges that the temperature of the ith air port can cause the air pressure near the ith air port to rise, and further judges the air flow direction in the power distribution cabinet according to the temperature in the power distribution cabinet;
if T beta is less than Ti, the central control module judges that the power distribution cabinet has an accident and gives an alarm.
Further, the central control module controls the measuring module to measure the temperature Tp in the power distribution cabinet when no accident occurs in the power distribution cabinet, and uploads the temperature Tp to the central control module, the central control module judges the state of the air pressure in the power distribution cabinet by comparing the Tp with the magnitude of T alpha and the magnitude of T beta,
if Tp is less than or equal to T alpha, the central control module judges that the air pressure in the power distribution cabinet is stable, and meanwhile, the central control module starts a natural air conditioning mode;
if Tp is more than Tp and less than or equal to Tbeta, the central control module judges that the air pressure in the power distribution cabinet rises, and meanwhile, the central control module starts an auxiliary air conditioning mode;
if T beta is smaller than Tp, the central control module judges that the power distribution cabinet has an accident and gives an alarm.
Furthermore, a first preset height h1, a second preset height h2 and a third preset height h3 are further arranged in the central control module, wherein h1 is the corresponding height of the bottom edge of the heat dissipation port of the power distribution cabinet, h2 is the corresponding height of the top end of the heat dissipation port of the power distribution cabinet, h3 is the corresponding height of the top end of the power distribution cabinet, hf is the highest height of the power distribution room where the power distribution cabinet is located, h1 is more than 0 and less than h2 and less than h3 and less than hf, when the central control module starts a natural air regulation mode, the central control module regulates the height Hi of the corresponding air port to a corresponding value according to the temperature Ti of the ith air port,
if Ti is less than Tp, the central control module judges that the position of the ith air port is lower than a preset standard, and the central control module controls the moving module to adjust the height of the ith air port to h2;
if Ti = Tp, the central control module judges that the position of the ith air port is reasonable, and meanwhile, the central control module does not adjust the position of the ith air port;
if Ti is larger than Tp, the central control module judges that the temperature of the position where the ith air inlet is located is higher than the temperature in the power distribution cabinet, and the central control module adjusts the position of the ith air inlet according to the size relation between the outdoor temperature and the Ti.
Further, a first preset outdoor temperature T gamma and a second preset outdoor temperature T delta are stored in the central control module, wherein T gamma is less than T delta, the first preset outdoor temperature T gamma is the highest temperature for water mist condensation, the second preset outdoor temperature T delta is the lowest temperature for damage of elements of the power distribution cabinet, when the central control module judges that the temperature outside the power distribution cabinet is higher than the temperature inside the power distribution cabinet, the central control module compares Ti with T gamma and T delta for the ith air opening to judge the height of the ith air opening,
if the Ti is less than or equal to T gamma, the central control module judges that the air is condensed due to the external temperature, and the central control module controls the moving module to adjust the height of the ith air port to h1;
if T gamma is larger than Ti and smaller than or equal to T delta, the central control module judges that the temperature of the ith air port can cause the abnormal rise of the temperature of the power distribution cabinet, and simultaneously, the central control module controls the mobile module to adjust the height of the ith air port to hf;
if T delta is less than Ti, the central control module judges that the temperature of the power distribution room where the power distribution cabinet is located is abnormal, and controls the moving module to adjust the height of the ith air opening to h3, and meanwhile, an alarm is given.
Further, the central control module judges the ventilation mode of the ventilation module according to the magnitude relation between the outdoor temperature Tp and the first preset outdoor temperature Tgamma and the second preset outdoor temperature Tdelta when the auxiliary air conditioning mode is started,
if Tp is less than or equal to T gamma, the central control module judges that air is condensed due to the external temperature, and the central control module controls the ventilation module to control air outlet of each air port;
if Tp is more than Tp and less than or equal to T delta, the central control module judges that the air outlet of the air inlet Hi is more than or equal to h3 and the air inlet of the air inlet Hi is more than or equal to h3 so as to enhance heat dissipation;
if T delta is less than Tp, the central control module judges that the temperature of the power distribution room where the power distribution cabinet is located is abnormal, controls the ventilation module to be closed, and gives an alarm.
Furthermore, the ventilation module can control the opening and closing of the corresponding tuyere according to a control instruction sent by the central control module.
Furthermore, the measurement module collects the temperature inside the power distribution cabinet and the temperature outside the power distribution cabinet by taking preset time as a period, and the central control module collects local weather information to determine the temperature outside the power distribution cabinet.
Further, the moving module is connected with each air port and used for providing power for each air port to enable each air port to move up and down.
Furthermore, the central control module is connected with a smoke sensing alarm of the power distribution room, and when the smoke sensing alarm gives an alarm, the central control module closes each air opening for air conditioning.
Compared with the prior art, the invention has the advantages that the height of the air inlet is adjusted by using the mode of arranging the ventilation module, the measurement module, the mobile module and the central control module and by comparing the power distribution cabinet, the power distribution room and the ambient temperature, so that the reliability of air conditioning of the power distribution cabinet is improved while the reliability of air conditioning is effectively improved.
Further, through the mode of monitoring the wind gap temperature, the height of wind gap is preliminarily adjusted, and the air conditioning efficiency of the power distribution cabinet is effectively improved, and meanwhile, the reliability of the air conditioning of the power distribution cabinet is further improved.
Furthermore, the mode of monitoring the temperature in the power distribution cabinet is used for judging the air pressure in the power distribution cabinet, so that the mode of the ventilation module is adjusted, the utilization efficiency of the ventilation module is effectively improved, and the reliability of air conditioning of the power distribution cabinet is further improved.
Furthermore, the height of the air opening is adjusted in a mode of comparing the temperature inside and outside the power distribution cabinet, and the air conditioning reliability of the power distribution cabinet is further improved while the ventilation efficiency of the air opening is effectively improved.
Furthermore, the position of the communicated outdoor air opening is adjusted by utilizing the mode of judging the outdoor temperature, so that the safety of the power distribution cabinet is effectively improved, and the reliability of air conditioning of the power distribution cabinet is further improved.
Further, the mode that the utilization was compared temperature and outdoor temperature in the switch board, the height in regulation wind gap has when effectively having promoted air conditioning efficiency, has further promoted switch board air conditioning's reliability.
Furthermore, the mode that the ventilation module is used for controlling the opening and closing of the air opening is utilized, the air conditioning safety of the power distribution cabinet is effectively improved, and meanwhile, the reliability of air conditioning of the power distribution cabinet is further improved.
Furthermore, the temperature information is collected by the measuring module and the central control module respectively in a preset period, so that the timeliness of air conditioning is effectively improved, and the reliability of air conditioning of the power distribution cabinet is further improved.
Furthermore, the heights of the air ports are respectively adjusted by utilizing the mode that the mobile module is respectively connected with the air ports, so that the air conditioning efficiency is effectively improved, and meanwhile, the reliability of air conditioning of the power distribution cabinet is further improved.
Further, the mode that the central control module is connected with the smoke sensing alarm is utilized, the air opening for air conditioning is closed when the power distribution cabinet has a serious fault, loss expansion caused by an air conditioning system is effectively avoided, and meanwhile the reliability of air conditioning of the power distribution cabinet is further improved.
Drawings
Fig. 1 is a schematic structural diagram of an energy-saving air conditioning system for a power distribution cabinet according to the present invention;
FIG. 2 is a position diagram of the energy-efficient air conditioning system for a power distribution cabinet of the present invention;
FIG. 3 is a schematic view of the positions of the tuyere and the power distribution cabinet of the present invention;
FIG. 4 is a natural air conditioning airflow pattern of the present invention;
FIG. 5 is a top view of the positions of the tuyere and the power distribution cabinet of the present invention;
FIG. 6 is a left side view of the natural air conditioning airflow direction of the present invention;
wherein: 1: a tuyere; 2: a moving module; 3; a power distribution cabinet; 4: and (4) a cable trench.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in conjunction with the following examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit 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 only for explaining the technical principles of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, 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 otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a schematic structural diagram of an energy-saving air conditioning system for a power distribution cabinet according to the present invention, which includes:
the ventilation module comprises a plurality of ventilation pipelines connected with air ports and is distributed around the outside of the power distribution cabinet at a preset distance;
the measuring module comprises a plurality of first detecting devices which are respectively arranged at the inner side of the power distribution cabinet to measure the temperature in the power distribution cabinet and a plurality of second detecting devices which are respectively arranged at each air opening; for the first detection device, the distance between the first detection device and a corresponding electrical appliance element in the power distribution cabinet is preset, and for each second detection device, the distance between the second detection device and a corresponding air opening is preset;
a moving module connected to the ventilation module to move the tuyere of the ventilation module in a vertical direction;
and the central control module is respectively connected with the mobile module and the measuring module and is used for adjusting the temperature near the power distribution cabinet.
Fig. 2 is a position relationship diagram of the energy-saving air conditioning system for a power distribution cabinet according to the present invention.
Compared with the prior art, the invention has the advantages that the height of the air inlet is adjusted by using the mode of arranging the ventilation module, the measurement module, the mobile module and the central control module and comparing the distribution box, the distribution room and the ambient temperature, so that the reliability of air conditioning of the distribution cabinet is improved while the reliability of air conditioning is effectively improved.
Please refer to fig. 3 and 5, which are schematic views of positions of the tuyere and the distribution box of the present invention and a top view of positions of the tuyere and the distribution box of the present invention.
Wherein wind gap 1 and distribution cabinet are connected with adjustable pipeline outward for adjust the position of wind gap 1 through removal module 2, switch board 3 is located the distribution cabinet, is equipped with the thermovent on it, is used for 3 inside heats effluviums of switch board.
For a single air opening, the air openings are arranged outside the power distribution cabinet at different heights, each second detection device is connected with the central control module and used for conveying the measured temperature value of each air opening to the central control module, for the ith air opening, the measured temperature of the air opening is marked as Ti by the measuring module, wherein i =1,2,3, …, n and n are the maximum air opening number, a first preset temperature T alpha and a second preset temperature T beta are arranged in the central control module, the T alpha is more than 0 and less than T beta, the first preset temperature T alpha is the maximum pressure threshold temperature, the second preset temperature T beta is the maximum critical temperature, and the central control module judges the air pressure near the air opening by comparing the Ti with the T alpha and the T beta,
if the Ti is less than or equal to the T alpha, the central control module preliminarily judges that the temperature of the ith air inlet cannot cause the air pressure near the ith air inlet to rise, and further judges the air flow direction in the power distribution cabinet according to the temperature in the power distribution cabinet;
if T alpha is larger than Ti and smaller than or equal to T beta, the central control module judges that the temperature of the ith air opening can cause the air pressure near the ith air opening to rise, and further judges the air flow direction in the power distribution cabinet according to the temperature in the power distribution cabinet;
if T beta is less than Ti, the central control module judges that the power distribution cabinet has an accident and gives an alarm.
Through the mode of contrast wind gap temperature, highly carry out preliminary adjustment to the wind gap, when effectively having promoted the air-conditioning efficiency to the switch board, further promoted switch board air conditioning's reliability.
Please refer to fig. 4 and 6, which are a left side view of the natural air flow direction diagram and the natural air flow direction diagram, respectively.
When natural air conditioning is performed, the air pressure nearby is increased due to the temperature rise in the power distribution cabinet 3, at the moment, if the external temperature is low, the central control module controls the moving module 2 to move the air inlet 1 with the high temperature to the upper part of the power distribution cabinet, and the air inlet 1 with the low temperature moves to the upper part of the heat dissipation opening; when the power distribution cabinet is moved, the temperature near the power distribution cabinet rises, the lower air opening 1 and the corresponding pipeline form a cyclone due to convection, the air pressure in the power distribution cabinet is reduced due to the higher air opening 1, the air with lower temperature is guided into the power distribution cabinet, and the cyclone is formed in the power distribution cabinet at the moment, so that the purpose of unpowered temperature reduction is achieved.
The central control module controls the measuring module to measure the temperature Tp in the power distribution cabinet when judging that no accident occurs in the power distribution cabinet, and uploads the temperature Tp to the central control module, the central control module judges the state of the air pressure in the power distribution cabinet by comparing the Tp with the magnitude of T alpha and T beta,
if Tp is less than or equal to T alpha, the central control module judges that the air pressure in the power distribution cabinet is stable, and meanwhile, the central control module starts a natural air conditioning mode;
if Tp is more than Tp and less than or equal to Tbeta, the central control module judges that the air pressure in the power distribution cabinet rises, and meanwhile, the central control module starts an auxiliary air conditioning mode;
if T beta is less than Tp, the central control module judges that the power distribution cabinet has an accident and gives an alarm.
Through the mode of monitoring the temperature in the switch board, judge the atmospheric pressure in the switch board to the mode of adjustment ventilation module has further promoted switch board air conditioning's reliability when effectively having promoted ventilation module's utilization efficiency.
Specifically, a first preset height h1, a second preset height h2 and a third preset height h3 are further arranged in the central control module, wherein h1 is the corresponding height of the bottom edge of a heat dissipation opening of a power distribution cabinet, h2 is the corresponding height of the top end of the heat dissipation opening of the power distribution cabinet, h3 is the corresponding height of the top end of the power distribution cabinet, hf is the highest height of a power distribution room where the power distribution cabinet is located, h1 is more than 0 and less than h2 and less than h3 and less than hf, when the central control module starts a natural air conditioning mode, the central control module adjusts the height Hi of the corresponding air opening to a corresponding value according to the temperature Ti of the ith air opening,
if Ti is less than Tp, the central control module judges that the position of the ith air port is lower than a preset standard, and the central control module controls the moving module to adjust the height of the ith air port to h2;
if Ti = Tp, the central control module judges that the position of the ith air port is reasonable, and meanwhile, the central control module does not adjust the position of the ith air port;
if Ti is larger than Tp, the central control module judges that the temperature of the position where the ith air port is located is higher than the temperature in the power distribution cabinet, and the central control module adjusts the position of the ith air port according to the magnitude relation between the outdoor temperature and the Ti.
Through the mode of carrying out the comparison to the inside and outside temperature of block terminal, adjust the height in wind gap, when effectively having promoted wind gap ventilation efficiency, further promoted switch board air conditioning's reliability.
Specifically, a first preset outdoor temperature T gamma and a second preset outdoor temperature T delta are stored in the central control module, wherein T gamma is less than T delta, the first preset outdoor temperature T gamma is the highest temperature of water mist condensation, the second preset outdoor temperature T delta is the lowest temperature of damage of elements of the distribution box, when the central control module judges that the temperature outside the distribution box is higher than the temperature inside the distribution box, the central control module compares Ti with T gamma and T delta to judge the height of the ith air inlet,
if the Ti is less than or equal to T gamma, the central control module judges that the external temperature can cause air condensation, and the central control module controls the moving module to adjust the height of the ith air port to h1;
if T gamma is larger than Ti and smaller than or equal to T delta, the central control module judges that the temperature of the ith air port can cause the abnormal rise of the temperature of the power distribution cabinet, and meanwhile, the central control module controls the moving module to adjust the height of the ith air port to hf;
if T delta is less than Ti, the central control module judges that the temperature of the power distribution room where the power distribution cabinet is located is abnormal, and the central control module controls the moving module to adjust the height of the ith air port to h3 and simultaneously gives an alarm.
The mode of judging the outdoor temperature is utilized to adjust the position of the communicated outdoor air opening, so that the safety of the power distribution cabinet is effectively improved, and the reliability of air conditioning of the power distribution cabinet is further improved.
Specifically, the central control module judges the ventilation mode of the ventilation module according to the magnitude relation between the outdoor temperature Tp and the first preset outdoor temperature Tgamma and the second preset outdoor temperature Tdelta when the auxiliary air conditioning mode is started,
if Tp is less than or equal to T gamma, the central control module judges that the external temperature can cause air condensation, and the central control module controls the ventilation module to control air outlet of each air port;
if Tgamma is larger than Tp and is smaller than or equal to T delta, the central control module judges that the air outlet of the air inlet Hi is smaller than h3 and the air inlet of the air inlet Hi is larger than or equal to h3 so as to enhance heat dissipation;
if T delta is less than Tp, the central control module judges that the temperature of the power distribution room where the power distribution cabinet is located is abnormal, controls the ventilation module to be closed, and gives an alarm.
The mode that the utilization was compared temperature and outdoor temperature in the distribution box adjusts the height in wind gap, when effectively having promoted air conditioning efficiency, has further promoted distribution cabinet air conditioning's reliability.
Particularly, the ventilation module can be according to the opening and closing of the control command control correspondence wind gap that well accuse module sent.
The mode that the ventilation module controls the opening and closing of the air opening is utilized, the air conditioning safety of the power distribution cabinet is effectively improved, and meanwhile the reliability of the air conditioning of the power distribution cabinet is further improved.
Specifically, the measurement module uses the preset time as the cycle to collect the temperature inside the power distribution cabinet and the temperature outside the power distribution cabinet, and the central control module collects the local weather information to determine the temperature outside the power distribution cabinet.
Utilize measuring module and well accuse module to gather temperature information with presetting cycle respectively, when effectively having promoted air conditioning timeliness, further promoted switch board air conditioning's reliability.
Specifically, the moving module is connected with each air port and used for providing power for each air port to enable each air port to move up and down.
The height of each air port is adjusted by the mode that the movable module is connected with each air port respectively, so that the air conditioning efficiency is effectively improved, and the air conditioning reliability of the power distribution cabinet is further improved.
Specifically, the central control module is connected with a smoke alarm of the power distribution room, and when the smoke alarm gives an alarm, the central control module closes each air opening for air conditioning.
The mode that the utilization links to each other well accuse module and cigarette sense warning, closes air conditioning when the block terminal goes out the serious failure and uses the wind gap, when effectively having avoided the loss expansion because of air conditioning system leads to, has further promoted switch board air conditioning's reliability.
So far, the technical solutions of the present invention have 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 the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An energy-efficient air conditioning system for a power distribution cabinet, comprising:
the ventilation module comprises a plurality of ventilation pipelines connected with air openings and is distributed around the outer periphery of the power distribution cabinet at a preset distance;
the measuring module comprises a plurality of first detecting devices which are respectively arranged on the inner side of the power distribution cabinet to measure the temperature in the power distribution cabinet and a plurality of second detecting devices which are respectively arranged at the air openings; for the first detection device, a preset distance is reserved between the first detection device and a corresponding electrical appliance element in the power distribution cabinet, and for each second detection device, a preset distance is reserved between the second detection device and a corresponding air opening;
a moving module connected to the ventilation module to move the tuyere of the ventilation module in a vertical direction;
the central control module is respectively connected with the moving module and the measuring module and used for adjusting the temperature near the power distribution cabinet;
for a single air port, the air ports are arranged outside the power distribution cabinet at different heights, each second detection device is connected with the central control module and used for conveying the measured temperature value of each air port to the central control module, for the ith air port, the measured temperature of the air port is recorded as Ti by the measuring module, wherein i =1,2,3, …, n and n are the maximum air port number, a first preset temperature T alpha and a second preset temperature T beta are arranged in the central control module, the T alpha is more than 0 and less than T beta, the first preset temperature T alpha is the maximum pressure threshold temperature, the second preset temperature T beta is the maximum critical temperature, and the central control module judges the air pressure near the air port by comparing the Ti with the T alpha and the T beta,
if the Ti is less than or equal to the T alpha, the central control module preliminarily judges that the temperature of the ith air inlet cannot cause the air pressure near the ith air inlet to rise, and further judges the air flow direction in the power distribution cabinet according to the temperature in the power distribution cabinet;
if T alpha is larger than Ti and smaller than or equal to T beta, the central control module judges that the temperature of the ith air port can cause the air pressure near the ith air port to rise, and further judges the air flow direction in the power distribution cabinet according to the temperature in the power distribution cabinet;
if the Tbeta is less than the Ti, the central control module judges that the power distribution cabinet has an accident and gives an alarm;
the central control module controls the measuring module to measure the temperature Tp in the power distribution cabinet when no accident occurs in the power distribution cabinet, and uploads the temperature Tp to the central control module, the central control module judges the state of the air pressure in the power distribution cabinet by comparing the Tp with the magnitude of T alpha and T beta,
if Tp is less than or equal to T alpha, the central control module judges that the air pressure in the power distribution cabinet is stable, and meanwhile, the central control module starts a natural air conditioning mode;
if Tp is more than Tp and less than or equal to Tbeta, the central control module judges that the air pressure in the power distribution cabinet rises, and meanwhile, the central control module starts an auxiliary air conditioning mode;
if T beta is smaller than Tp, the central control module judges that the power distribution cabinet has an accident and gives an alarm;
the central control module is also internally provided with a first preset height h1, a second preset height h2 and a third preset height h3, wherein h1 is the corresponding height of the bottom edge of the heat dissipation port of the power distribution cabinet, h2 is the corresponding height of the top end of the heat dissipation port of the power distribution cabinet, h3 is the corresponding height of the top end of the power distribution cabinet, hf is the highest height of the power distribution room where the power distribution cabinet is located, h1 is more than 0 and less than h2 and less than h3 and less than hf, when the central control module starts a natural air conditioning mode, the central control module adjusts the height Hi of the corresponding air port to a corresponding value according to the temperature Ti of the ith air port,
if Ti is smaller than Tp, the central control module judges that the position of the ith air port is lower than a preset standard, and the central control module controls the moving module to adjust the height of the ith air port to h2;
if Ti = Tp, the central control module judges that the position of the ith air port is reasonable, and meanwhile, the central control module does not adjust the position of the ith air port;
if Ti is larger than Tp, the central control module judges that the temperature of the position of the ith air inlet is higher than the temperature in the power distribution cabinet, and the central control module adjusts the position of the ith air inlet according to the magnitude relation between the outdoor temperature and the Ti;
the central control module is stored with a first preset outdoor temperature T gamma and a second preset outdoor temperature T delta, wherein T gamma is less than T delta, the first preset outdoor temperature T gamma is the highest temperature of water mist condensation, the second preset outdoor temperature T delta is the lowest temperature of the damage of elements of the power distribution cabinet, when the central control module judges that the outside temperature of the power distribution cabinet is higher than the inside temperature of the power distribution cabinet, for the ith air opening, the central control module compares Ti with T gamma and T delta to judge the height of the ith air opening,
if the Ti is less than or equal to T gamma, the central control module judges that the air is condensed due to the external temperature, and the central control module controls the moving module to adjust the height of the ith air port to h1;
if T gamma is larger than Ti and smaller than or equal to T delta, the central control module judges that the temperature of the ith air port can cause the abnormal rise of the temperature of the power distribution cabinet, and simultaneously, the central control module controls the mobile module to adjust the height of the ith air port to hf;
if T delta is less than Ti, the central control module judges that the temperature of a power distribution room where the power distribution cabinet is located is abnormal, controls the moving module to adjust the height of the ith air port to h3, and gives an alarm at the same time;
the central control module judges the ventilation mode of the ventilation module according to the magnitude relation between the outdoor temperature Tp and the first preset outdoor temperature Tgamma and the second preset outdoor temperature Tdelta when the auxiliary air conditioning mode is started,
if Tp is less than or equal to T gamma, the central control module judges that air is condensed due to the external temperature, and the central control module controls the ventilation module to control air outlet of each air port;
if Tp is more than Tp and less than or equal to T delta, the central control module judges that the air outlet of the air inlet Hi is more than or equal to h3 and the air inlet of the air inlet Hi is more than or equal to h3 so as to enhance heat dissipation;
if T delta is less than Tp, the central control module judges that the temperature of the power distribution room where the power distribution cabinet is located is abnormal, controls the ventilation module to be closed, and gives an alarm.
2. The energy-saving air conditioning system for the power distribution cabinet according to claim 1, wherein the ventilation module can control the opening and closing of the corresponding air opening according to a control instruction sent by the central control module.
3. The energy-saving air conditioning system for power distribution cabinets according to claim 2, wherein said measurement module collects the temperature inside the power distribution cabinet and the temperature outside the power distribution cabinet for a predetermined period of time, and said central control module collects local weather information to determine the temperature outside the power distribution cabinet.
4. The energy efficient air conditioning system for electrical distribution cabinets of claim 3, wherein said moving module is connected to each of said air openings for powering the air openings to move the air openings up and down.
5. The energy-saving air conditioning system for power distribution cabinets according to claim 4, wherein the central control module is connected with a smoke alarm of the power distribution cabinet, and when the smoke alarm gives an alarm, the central control module closes each of the air ports for air conditioning.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211438808.9A CN115579775B (en) | 2022-11-17 | 2022-11-17 | Energy-saving air conditioning system for power distribution cabinet |
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| CN202211438808.9A CN115579775B (en) | 2022-11-17 | 2022-11-17 | Energy-saving air conditioning system for power distribution cabinet |
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| CN115579775B true CN115579775B (en) | 2023-03-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10001289B2 (en) * | 2016-05-31 | 2018-06-19 | Robert J. Mowris | Apparatus and methods to measure economizer outdoor air fractions and fault detection diagnostics of airflow, cooling capacity, and heating capacity |
| CN106211721B (en) * | 2016-08-30 | 2019-05-24 | 北京思博康科技有限公司 | A kind of flow-optimized system of cabinet intelligent gas and the data center based on the system |
| CN108418125A (en) * | 2018-03-16 | 2018-08-17 | 天津市鼎盛鑫科技有限公司 | A kind of energy-saving power distribution cabinet conditioner and method |
| CN108966606B (en) * | 2018-09-03 | 2024-05-24 | 沈阳宁声风机有限责任公司 | Low-noise air energy-saving device for machine room |
| CN210985255U (en) * | 2019-12-22 | 2020-07-10 | 李安业 | Power distribution cabinet for voltage transformer |
| CN110970822B (en) * | 2020-01-04 | 2021-04-13 | 徐雄敏 | Insect-proof ventilation screen plate for power distribution cabinet of communication base station |
| CN215002087U (en) * | 2021-05-19 | 2021-12-03 | 亿腾达建设股份有限公司 | Circulating ventilation mechanism for construction of distribution room |
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