CN117393277A - Ventilation system and method for dry-type transformer box body of new energy storage integrated machine - Google Patents
Ventilation system and method for dry-type transformer box body of new energy storage integrated machine Download PDFInfo
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- CN117393277A CN117393277A CN202311689783.4A CN202311689783A CN117393277A CN 117393277 A CN117393277 A CN 117393277A CN 202311689783 A CN202311689783 A CN 202311689783A CN 117393277 A CN117393277 A CN 117393277A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 238
- 238000004146 energy storage Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 155
- 238000001914 filtration Methods 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims description 104
- 230000005540 biological transmission Effects 0.000 claims description 59
- 229920000742 Cotton Polymers 0.000 claims description 15
- 240000000233 Melia azedarach Species 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 9
- 238000009825 accumulation Methods 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000001960 triggered effect Effects 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000007664 blowing Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 208000032370 Secondary transmission Diseases 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/74—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
- B01D46/76—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving vibrations
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a ventilation system and a ventilation method for a box body of a dry-type transformer of a new energy storage integrated machine. The ventilation system is built based on the dry-type transformer bin and comprises an exhaust fan, an external air inlet pipe, a ventilation channel, a centrifugal fan and a filtering component; the centrifugal fan and the ventilation channel are arranged in the dry-type transformer bin, an air outlet of the centrifugal fan is communicated with an air outlet of an external air inlet pipe through the ventilation channel, and an air inlet A of the external air inlet pipe is provided with a filtering component; the ventilation channel is provided with at least one openable ventilation opening; when the centrifugal fan is in a stop state, the openable vent is in an open state, and most of air led in through the external air inlet pipe is led into the dry-type transformer bin through the openable vent; when the centrifugal fan is in a working state, the openable vent is in a closed state. Therefore, the invention effectively improves the dust removing effect of the filter component and the ventilation effect in the box body.
Description
Technical Field
The invention relates to a ventilation system and a ventilation method for a box body of a dry-type transformer of a new energy storage integrated machine, and relates to the technical field of transformers.
Background
The new energy integrated machine is an outdoor totally-enclosed box body, ventilation mainly depends on an air inlet and an air outlet, the air inlet is provided with three layers of filter cotton, the filter cotton is easy to block for a long time, air circulation is unsmooth, indoor temperature is not reduced, and accordingly the service life of a transformer is influenced. Therefore, in order to remove dust from the filter cotton at the air inlet at regular intervals, a method of blowing the filter cotton by using a dust removing fan is currently commonly used. Adopt dust removal fan to remove dust to the filter pulp, because dust removal fan amount of wind is little, to the air current that the filter pulp sweeps not concentrate, consequently dust removal effect is limited, needs to change frequently the filter pulp.
Disclosure of Invention
The invention aims to provide a new energy storage integrated machine dry type transformer box ventilation system and a method thereof, wherein a conventionally used dust removal fan is replaced by a centrifugal fan, and a ventilation air duct with an openable vent is arranged between the centrifugal fan and an external air inlet pipe, so that the openable vent is in a closed state during dust removal operation, and high-speed air flow output by the centrifugal fan can intensively purge filter cotton through the ventilation air duct, thereby achieving the purpose of improving the dust removal effect of the filter cotton; when the ventilating operation state is adopted, the openable vent is opened, so that air flow led in by the external air inlet pipe does not need to flow through the centrifugal fan, and the air can flow into the box body only through the openable vent of the ventilating duct, thereby ensuring that ventilation inside and outside the box body can normally operate and improving the ventilating effect of the box body.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the ventilation system of the dry-type transformer box body of the new energy storage integrated machine is built based on a dry-type transformer bin and comprises a ventilation-dust removal mechanism, wherein the ventilation-dust removal mechanism comprises a ventilation mechanism and a dust removal mechanism; the ventilating mechanism comprises an exhaust fan, an external air inlet pipe and a ventilating channel, and the dust removing mechanism comprises a centrifugal fan and a filtering component; the external air inlet pipe is arranged at the outer side of the dry-type transformer bin and is arranged at an air inlet of the dry-type transformer bin, and the exhaust fan is arranged at an air outlet of the dry-type transformer bin; the centrifugal fan and the ventilation channel are arranged in the dry-type transformer bin, an air outlet of the centrifugal fan is communicated with an air outlet of an external air inlet pipe through the ventilation channel, and an air inlet A of the external air inlet pipe is provided with a filtering component; the ventilation channel is at least provided with an openable ventilation opening;
when the centrifugal fan is in a stop state, the openable vent is in an open state, and most of air led in through the external air inlet pipe is led into the dry-type transformer bin through the openable vent;
when the centrifugal fan is in a working state, the openable vent is in a closed state.
Preferably, the openable vent is a movable shutter vent; the movable shutter ventilation opening comprises a basic ventilation opening, a shutter curtain and a shutter curtain opening and closing mechanism; the blind is arranged at the basic ventilation opening and is connected with the power output end of the blind opening and closing mechanism; under the power action of the shutter opening and closing mechanism, the shutter can open or close the basic ventilation opening.
Preferably, the dust detection device further comprises a PLC controller and a dust detection sensor;
the dust detection sensor is arranged in the ventilation channel and is used for detecting dust accumulation conditions of the filtering component and feeding detected information M1 back to the PLC;
the PLC comprises a dust judging module, a dust removing control module and a ventilation control module;
the dust judging module is used for judging whether the information M1 fed back by the received dust detection sensor is in a preset dust threshold M0 or not, and sending execution instructions to the dust removal control module and the ventilation control module according to a judging result;
the dust removal control module is used for automatically controlling the on-off of the centrifugal fan according to the execution instruction sent by the dust judgment module;
the ventilation control module is used for automatically controlling the working state of the She Lian opening and closing mechanism according to the execution instruction sent by the dust judging module;
when the judging result of the dust judging module indicates that the information M1 fed back by the dust detecting sensor is in a preset dust threshold M0, a first executing instruction is sent to the dust removing control module and the ventilation control module respectively: the shutter curtain opening and closing mechanism drives the shutter curtain under the control of the ventilation control module to close the basic ventilation opening, then the centrifugal fan is started and stopped circularly under the control of the dust removal control module, compressed gas is intermittently output from the air inlet A of the air inlet pipe outwards through the ventilation channel, dust removal treatment of the filtering component is achieved, and until the judging result of the dust judging module indicates that the information M1 fed back by the dust detecting sensor exceeds the preset dust threshold M0, a second executing instruction is sent to the dust removal control module and the ventilation control module respectively, so that the centrifugal fan is stopped under the control of the dust removal control module, and the She Lian opening and closing mechanism drives the shutter curtain under the control of the ventilation control module to open the basic ventilation opening.
Preferably, the ventilation-dust removal mechanism further comprises an alarm device, and the PLC controller further comprises an alarm triggering module; the alarm triggering module is in signal connection with the alarm device; the alarm triggering module is constructed based on the accumulation of the start and stop times of the circulating start and stop centrifugal fans by a counter or based on the timing of the working time of the circulating start and stop centrifugal fans by a timer; when the alarm triggering module is constructed by accumulating the start-stop times of the circulating start-stop centrifugal fan based on the counter, triggering the alarm module to output an alarm signal when the accumulated start-stop times of the alarm triggering module reach the preset alarm times; when the alarm triggering module is constructed by timing the working time of the circulating start-stop centrifugal fan based on the timer, the alarm triggering module is triggered to output an alarm signal when the accumulated working time of the alarm triggering module exceeds the preset alarm time.
Preferably, the whole ventilation channel is a rectangular air channel; the movable shutter ventilation openings are two and correspond to the first movable shutter ventilation opening and the second movable shutter ventilation opening; the basic ventilation openings of the first movable shutter ventilation openings and the basic ventilation openings of the second movable shutter ventilation openings are symmetrically arranged at two ends of the rectangular air duct along the vertical direction; the shutter opening and closing mechanism of the first movable shutter ventilation opening and the second movable shutter ventilation opening is arranged on the lateral wall of the rectangular air duct; the rectangular air duct is communicated with two ends of the rectangular air duct along the length direction to form two ventilation openings, and the two ventilation openings are a first ventilation opening and a second ventilation opening correspondingly; the outer edge of the first vent is outwards provided with a connecting disc A, and an air outlet of the external air inlet pipe is provided with a connecting disc B matched with the connecting disc A; the outer edge of the second air vent is outwards provided with a connecting disc C, and the air outlet of the centrifugal fan is provided with a connecting disc D matched with the connecting disc C; the ventilation channel is connected with the centrifugal fan through the butt joint of the connecting disc C and the connecting disc D, and the ventilation channel is connected with the external air inlet pipe through the butt joint of the connecting disc A and the connecting disc B.
Preferably, the shutter opening and closing mechanism comprises a power driving mechanism and a shutter opening and closing transmission mechanism; the shutter opening and closing transmission mechanism comprises a main transmission wheel, a main transmission chain, a slave transmission wheel, a shutter transmission chain and a shutter transmission wheel;
the shutter comprises a plurality of shutter blades; two ends of each louver blade are respectively positioned and installed on the transverse end face of the rectangular air duct through a transmission shaft; the transmission shafts arranged at the end parts of the same side of each louver are sequentially named as a first transmission shaft and a second transmission shaft … … ith transmission shaft … … nth transmission shaft from the side close to the power driving mechanism;
the number of the shutter transmission chains is consistent with that of the shutter blades, and the shutter transmission chains are sequentially recorded as a first shutter transmission chain, a second shutter transmission chain … … and an ith shutter transmission chain … … from the side close to the power driving mechanism, wherein n represents the number of the shutter blades; each shutter driving chain is provided with two shutter driving wheels which are respectively meshed with the corresponding shutter driving chains, and the two shutter driving wheels are corresponding to the main shutter driving wheels and the auxiliary shutter driving wheels;
the main driving wheel and the auxiliary driving wheel are respectively meshed with the main driving chain, the main driving wheel is coaxially connected with the power output end of the power driving mechanism, the auxiliary driving wheel is positioned and installed on the transverse end face of the rectangular air duct through a first transmission shaft, the auxiliary shutter driving wheel of the first shutter driving chain is positioned and installed on the transverse end face of the rectangular air duct through a second transmission shaft, the auxiliary shutter driving wheel of the second shutter driving chain is positioned and installed on the transverse end face of the rectangular air duct through a third transmission shaft, and the auxiliary shutter driving wheel of the nth shutter driving chain is positioned and installed on the transverse end face of the rectangular air duct through an nth transmission shaft.
Preferably, the first movable shutter ventilation opening and the second movable shutter ventilation opening share the same power driving mechanism, so that a main driving wheel in the shutter opening and closing mechanism of the first movable shutter ventilation opening and a main driving wheel in the shutter opening and closing mechanism of the second movable shutter ventilation opening are coaxially arranged and respectively connected with a power output end of the power driving mechanism.
Preferably, the dust detection sensor is a photoelectric sensor or a wind pressure flow sensor; the photoelectric sensing sensor feeds back information M1 by sensing the dust amount accumulated on the filtering component; the wind pressure flow sensor feeds back dust accumulation conditions on the filter component by detecting ventilation quantity changes of the ventilation channel.
Preferably, the air inlet A of the external air inlet pipe is arranged on the lower bottom surface; the filter component is filter cotton and is paved at an air inlet A of an external air inlet pipe.
The invention provides a new energy and energy storage integrated machine dry type transformer box ventilation and dust removal method, which is realized based on the new energy and energy storage integrated machine dry type transformer box ventilation system, and comprises the following steps:
step one, starting a ventilation and dust removal mechanism: in the initial state, an exhaust fan at an air outlet of the dry-type transformer bin is in an open state, the centrifugal fan is in a stop state, and the shutter curtain opens the basic ventilation opening under the action of the She Lian opening and closing mechanism, so that air sucked in through the air inlet of the dry-type transformer bin basically enters the dry-type transformer bin through the basic ventilation opening;
detecting the ventilation quantity of the dry-type transformer bin by adopting a wind pressure flow sensor arranged in the ventilation channel, and feeding back the detected ventilation quantity information F to the PLC; detecting the temperature in the dry-type transformer bin by adopting a temperature sensor arranged in the dry-type transformer bin, and feeding back detected temperature information T to the PLC;
step three, the PLC controller judges whether the ventilation quantity information F is in a preset ventilation quantity threshold F0 range or not and whether the temperature information T is in a preset temperature threshold T0 range or not based on the received ventilation quantity information F and the temperature information T, and when the judgment result shows that the ventilation quantity information F is in the preset ventilation quantity threshold F0 range and the temperature information T is also in the preset temperature threshold T0 range, the step four is entered; otherwise, entering a step five;
step four, the exhaust fan is continuously in an open state, the centrifugal fan is continuously in a stop state, and the shutter curtain is driven by the She Lian opening and closing mechanism to continuously maintain the basic ventilation opening in an open state;
step five, reversely starting the shutter curtain opening and closing mechanism to enable the shutter curtain to close the basic ventilation opening under the action of the She Lian opening and closing mechanism;
step six, opening an exhaust fan, and then circularly starting and stopping the centrifugal fan to perform intermittent centrifugal dust removal operation on a filter component at an air inlet of the dry type transformer bin, wherein the intermittent time is t0 until ventilation quantity information F fed back by the wind pressure flow sensor is in a preset ventilation quantity threshold F0 range; meanwhile, in the time t0 of intermittent manufacturing and stopping of the centrifugal fan, a vibration mechanism is adopted to perform vibration dust removal operation on the filter component; in addition, in the process of circulating start and stop of the centrifugal fan, the working time of the circulating start and stop centrifugal fan is timed, and when the working time of the circulating start and stop centrifugal fan exceeds a preset time threshold, the step seven is entered;
and step seven, triggering an alarm device to prompt the failure of the dust removing operation of the filtering component.
Based on the technical objects, compared with the prior art, the invention has the following advantages:
1. the invention sets a openable vent on the ventilation channel between the centrifugal fan and the air outlet of the external air inlet pipe, and sets the openable vent to be in a closed state when the centrifugal fan works (removes dust), so that the compressed air flow blown by the centrifugal fan can be intensively guided to the filter component arranged at the air inlet of the external air inlet pipe through the ventilation channel, thereby carrying out dust removal operation on the filter component, and sets the openable vent to be in an open state when the centrifugal fan stops, so that the air sucked from the air inlet of the external air inlet pipe through the exhaust fan can enter the dry-type transformer bin through the open openable vent, and the sucked air flow of the exhaust fan bypasses relative to the centrifugal fan when the normal ventilation state is realized, thereby ensuring the normal operation of the ventilation inside and outside the box body. If the ventilation channel is a complete fluid channel and is not provided with an openable vent, although the centralized blowing of the air flow blown by the centrifugal fan can be ensured during dust removal, in a natural ventilation state, the centrifugal fan is in a closed state, so that the centrifugal fan is equivalent to a flow passage blocking/limiting component arranged on the ventilation channel, and therefore, the air flow is difficult to naturally flow into the box body, and the ventilation effect is affected; and a permanent ventilation opening is arranged beside the ventilation channel, so that compressed air flow output by the centrifugal fan is difficult to intensively purge the filtering component, thereby influencing the dust removal effect.
2. The openable and closable ventilation opening is arranged to be the movable shutter ventilation opening, so that the ventilation air flow uniformity of the basic ventilation opening entering the box body when the basic ventilation opening is in an opened state can be realized, and the ventilation area of the basic ventilation opening can be ensured to the greatest extent.
3. The invention adopts the PLC to realize the automatic control of ventilation and dust removal operation, realizes the intellectualization of equipment, and improves the efficiency and the precision of the equipment.
4. The invention also configures an alarm device to give an alarm when the dust removal operation fails.
Drawings
Fig. 1 is a schematic structural diagram of a ventilation system of a dry-type transformer box body of a new energy and energy storage integrated machine according to the invention;
FIG. 2 is a schematic diagram of an exploded view of the ventilation and dust removal mechanism of FIG. 1 at the air intake of the dry transformer compartment;
fig. 3 is a schematic view of the ventilation channel of fig. 1.
Fig. 4 is a schematic structural view of an external air inlet pipe according to the present invention.
In the figure: 1. a dry transformer bin; 2. a first part ventilation-dust removal mechanism; 21. externally connected with an air inlet pipe; 211. an air inlet A; 212. a connecting disc B; 220. a connecting disc C; 221. a servo motor; 222. a main driving wheel; 223. a slave drive wheel; 224. a main drive chain; 225. a blind; 226. a shutter drive chain; 227. a main shutter driving wheel; 228. a shutter driving wheel; 229. a sidewall; 23. a centrifugal fan; 3. external air outlet pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. The relative arrangement, expressions and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.
Example 1
As shown in fig. 1 to 4, the ventilation system of the dry-type transformer box body of the new energy and energy storage integrated machine is built based on a dry-type transformer bin 1 and comprises a ventilation and dust removal mechanism; the ventilation and dust removal mechanism is integrally divided into two parts according to the installation site, namely a first part of ventilation and dust removal mechanism 2 and a second part of ventilation and dust removal mechanism; the first part ventilation-dust removing mechanism 2 is arranged at the air inlet of the dry-type transformer bin 1 and comprises a dust removing mechanism, an external air inlet pipe 21 and a ventilation channel, and the second part ventilation-dust removing mechanism is arranged at the air outlet of the dry-type transformer bin 1 and comprises an external air outlet pipe 3 and an exhaust fan (not shown in the drawing). The ventilation and dust removal mechanism is integrally divided into two parts of the ventilation mechanism and the dust removal mechanism according to the functional module. The ventilating mechanism comprises an exhaust fan, an external air outlet pipe 3, an external air inlet pipe 21 and a ventilating channel, and the dust removing mechanism comprises a centrifugal fan 23 and a filtering component; the external air inlet pipe 21 is arranged at the outer side of the dry type transformer bin 1 and is arranged at an air inlet of the dry type transformer bin 1, the exhaust fan is arranged at an air outlet of the dry type transformer bin 1, and the external air outlet pipe 3 is arranged at the outer side of the air outlet of the dry type transformer bin 1 and is communicated with the air outlet of the dry type transformer bin 1; the centrifugal fan 23 and the ventilation channel are arranged in the dry-type transformer bin 1, and an air outlet of the centrifugal fan 23 is communicated with an air outlet of the external air inlet pipe 21 through the ventilation channel, and an air inlet A211 of the external air inlet pipe 21 is provided with a filtering component; the ventilation channel is at least provided with an openable ventilation opening; when the centrifugal fan 23 is in a stop state, the openable vent is in an open state, and most of the air led in through the external air inlet pipe 21 is led in the dry-type transformer bin 1 through the openable vent; when the centrifugal fan 23 is in the working state, the openable vent is in the closed state.
In order to improve the ventilation area and ventilation uniformity of the openable vent in an opened state as much as possible, the openable vent is set as a movable shutter vent; the movable shutter ventilation opening comprises a basic ventilation opening, a shutter 225 and a shutter opening and closing mechanism; the blind 225 is arranged at the basic ventilation opening and is connected with the power output end of the blind opening and closing mechanism; the blind 225 can open or close the base vent under the power of the blind opening and closing mechanism.
The invention adopts the PLC controller to program and control the ventilation and dust removal working conditions. Specifically, the ventilation-dust removal mechanism of the invention further comprises a PLC controller and a dust detection sensor; wherein:
the dust detection sensor is arranged in the ventilation channel and is used for detecting dust accumulation conditions of the filtering component and feeding detected information M1 back to the PLC; the dust detection sensor can be a photoelectric sensor or a wind pressure flow sensor. The photoelectric sensing sensor feeds back information M1 by sensing the dust amount accumulated on the filtering component; the wind pressure flow sensor feeds back dust accumulation conditions on the filter component by detecting ventilation quantity changes of the ventilation channel.
The photoelectric induction sensor feeds back dust information of air in the dry-type transformer bin 1 by sensing the dust particle content contained in the air at the outlet of the dry-type transformer bin 1; the wind pressure flow sensor feeds back the blocking condition of the filtering component by detecting the ventilation quantity at the outlet of the dry-type transformer bin 1.
When the wind pressure flow sensor senses that the air circulation is not smooth (upper limit value), a signal is given, the centrifugal fan 23 starts the air blowing inlet to filter cotton for dust removal, and meanwhile, the miniature vibrator starts to vibrate dustproof cotton (filter component) to achieve the best dust removal effect. And stopping operation until the set lower limit value of the flow sensor is reached, and detecting the indoor temperature change to reach the normal temperature value. Usually, the dust is removed by blowing the dust-proof cotton through the centrifugal fan, however, if the dust-proof cotton has stubborn dust, the auxiliary vibrator vibrates the dust-proof cotton, so that a better dust removing effect can be obtained.
Specifically, the PLC comprises a dust judging module, a dust removing control module and a ventilation control module;
the dust judging module is used for judging whether the information M1 fed back by the received dust detection sensor is in a preset dust threshold M0 or not, and sending execution instructions to the dust removal control module and the ventilation control module according to a judging result;
the dust removal control module is used for automatically controlling the on-off of the centrifugal fan 23 according to the execution instruction sent by the dust judgment module;
the ventilation control module is used for automatically controlling the working state of the She Lian opening and closing mechanism according to the execution instruction sent by the dust judging module;
when the judging result of the dust judging module indicates that the information M1 fed back by the dust detecting sensor is in a preset dust threshold M0, a first executing instruction is sent to the dust removing control module and the ventilation control module respectively: the shutter curtain opening and closing mechanism drives the shutter curtain 225 under the control of the ventilation control module to close the basic ventilation opening, then the centrifugal fan 23 is circularly started and stopped under the control of the dust removal control module, compressed gas is intermittently output to the air inlet A211 of the air inlet pipe 21 through the ventilation channel, dust removal treatment of the filtering component is achieved, and until the judging result of the dust judging module indicates that the information M1 fed back by the dust detecting sensor exceeds the preset dust threshold M0, a second executing instruction is sent to the dust removal control module and the ventilation control module respectively, so that the centrifugal fan 23 is stopped under the control of the dust removal control module, and the She Lian opening and closing mechanism drives the shutter curtain 225 under the control of the ventilation control module to open the basic ventilation opening.
The ventilation-dust removal mechanism further comprises an alarm device, and the PLC controller further comprises an alarm triggering module; the alarm triggering module can be realized by accumulating the start and stop times of the circulating start and stop centrifugal fan 23 through a counter, and can also be realized by timing the working time of the circulating start and stop centrifugal fan 23 through a timer.
When the alarm triggering module is built by adopting a counter, the alarm triggering module is a dust removal cycle counting module, and the specific implementation mode is as follows: in the process that the dust judging module sends a first executing instruction to the dust removing control module and circularly starts and stops the centrifugal fan 23 through the dust removing control module, a control signal of each time of starting and stopping the centrifugal fan 23 is fed back to the dust removing circulation counting module, the dust removing circulation counting module accumulates the starting and stopping times of the centrifugal fan 23 after receiving the control signal of starting and stopping the centrifugal fan 23, and when the accumulated starting and stopping times of the dust removing circulation counting module reach the preset alarming times (such as 10 times), the alarming module is triggered, the alarming signal is externally output, and manual processing or filter cotton replacement is adopted.
When the alarm triggering module is constructed by adopting a timer, the alarm triggering module is a dust removal cycle timing module, and the specific implementation mode is as follows: in the process that the dust judging module sends a first executing instruction to the dust removing control module and the centrifugal fan 23 is started and stopped circularly through the dust removing control module, a signal is fed back to the dust removing circulation timing module when the centrifugal fan 23 is started for the first time, the dust removing circulation timing module starts timing when receiving the signal for starting the centrifugal fan 23 for the first time, and when the accumulated time length exceeds the preset time, the alarm module is triggered to output an alarm signal to the outside.
The whole ventilation channel is a rectangular air channel; the movable shutter ventilation openings are two and correspond to the first movable shutter ventilation opening and the second movable shutter ventilation opening; the basic ventilation openings of the first movable shutter ventilation openings and the basic ventilation openings of the second movable shutter ventilation openings are symmetrically arranged at two ends of the rectangular air duct along the vertical direction; the shutter opening and closing mechanism of the first movable shutter ventilation opening and the second movable shutter ventilation opening is arranged on the lateral wall 229 of the rectangular air duct; the rectangular air duct is communicated with two ends of the rectangular air duct along the length direction to form two ventilation openings, and the two ventilation openings are a first ventilation opening and a second ventilation opening correspondingly; the outer edge of the first ventilation opening is outwards provided with a connecting disc A, and the air outlet of the external air inlet pipe 21 is provided with a connecting disc B212 matched with the connecting disc A; the outer edge of the second air vent is outwards provided with a connecting disc C220, and the air outlet of the centrifugal fan 23 is provided with a connecting disc D matched with the connecting disc C220; the ventilation channel and the centrifugal fan 23 are connected through the butt joint of the connecting disc C220 and the connecting disc D, and the ventilation channel and the external air inlet pipe 21 are connected through the butt joint of the connecting disc A and the connecting disc B212.
The shutter opening and closing mechanism comprises a power driving mechanism and a shutter opening and closing transmission mechanism; the shutter opening and closing transmission mechanism comprises a main transmission wheel 222, a main transmission chain 224, a secondary transmission wheel 223, a shutter transmission chain 226 and a shutter transmission wheel; the blind 225 includes a plurality of slats; two ends of each louver blade are respectively positioned and installed on the transverse end face of the rectangular air duct through a transmission shaft; the transmission shafts arranged at the end parts of the same side of each louver are sequentially named as a first transmission shaft and a second transmission shaft … … ith transmission shaft … … nth transmission shaft from the side close to the power driving mechanism; the number of the shutter drive chains 226 is consistent with that of the shutter blades, and the shutter drive chains are sequentially recorded as a first shutter drive chain, a second shutter drive chain … … and an ith shutter drive chain … … from the side close to the power driving mechanism, wherein n represents the number of the shutter blades; each shutter driving chain is provided with two shutter driving wheels which are respectively meshed with the corresponding shutter driving chain 226, and the two shutter driving wheels are a main shutter driving wheel 227 and a slave shutter driving wheel 228 correspondingly; the main driving wheel 222 and the auxiliary driving wheel 223 are respectively meshed with the main driving chain 224, the main driving wheel 222 is coaxially connected with the power output end of the power driving mechanism, the auxiliary driving wheel 223 and the main shutter driving wheel of the first shutter driving chain are positioned and installed on the transverse end face of the rectangular air duct through a first transmission shaft, the auxiliary shutter driving wheel of the first shutter driving chain and the main shutter driving wheel of the second shutter driving chain are positioned and installed on the transverse end face of the rectangular air duct through a second transmission shaft, the auxiliary shutter driving wheel of the second shutter driving chain and the main shutter driving wheel of the third shutter driving chain are positioned and installed on the transverse end face of the rectangular air duct through a third transmission shaft, and so on until the auxiliary shutter driving wheel of the n shutter driving chain is positioned and installed on the transverse end face of the rectangular air duct through an n driving shaft.
In order to promote the compact structure of the equipment and save energy and cost, the first movable shutter ventilation opening and closing mechanism and the second movable shutter ventilation opening share the same power driving mechanism, so that a main driving wheel in the shutter opening and closing mechanism of the first movable shutter ventilation opening and a main driving wheel in the shutter opening and closing mechanism of the second movable shutter ventilation opening are coaxially arranged and respectively connected with a power output end of the power driving mechanism.
As shown in fig. 4, an air inlet a211 of the external air inlet pipe 21 is arranged on the lower bottom surface; the filter part is filter cotton and is paved at an air inlet A211 of the external air inlet pipe 21.
The air outlet of the external air outlet pipe 3 is also arranged on the lower bottom surface.
In this embodiment, the power driving mechanism employs a servo motor 221.
Example 2
The embodiment provides a new energy storage integrated machine dry-type transformer tank ventilation and dust removal method, which is realized based on the new energy storage integrated machine dry-type transformer tank ventilation system, and comprises the following steps:
step one, starting a ventilation and dust removal mechanism: in the initial state, the exhaust fan at the air outlet of the dry-type transformer bin 1 is in an open state, the centrifugal fan 23 is in a stop state, and the shutter 225 opens the basic ventilation opening under the action of the She Lian opening and closing mechanism, so that the air sucked through the air inlet of the dry-type transformer bin 1 basically enters the dry-type transformer bin 1 through the basic ventilation opening;
step two, detecting the ventilation quantity of the dry-type transformer bin 1 by adopting a wind pressure flow sensor arranged in the ventilation channel, and feeding back the detected ventilation quantity information F to the PLC; detecting the temperature in the dry-type transformer bin 1 by adopting a temperature sensor installed in the dry-type transformer bin 1, and feeding back the detected temperature information T to the PLC;
step three, the PLC controller judges whether the ventilation quantity information F is in a preset ventilation quantity threshold F0 range or not and whether the temperature information T is in a preset temperature threshold T0 range or not based on the received ventilation quantity information F and the temperature information T, and when the judgment result shows that the ventilation quantity information F is in the preset ventilation quantity threshold F0 range and the temperature information T is also in the preset temperature threshold T0 range, the step four is entered; otherwise, entering a step five;
step four, the exhaust fan is continuously in an open state, the centrifugal fan 23 is continuously in a stop state, and the shutter 225 causes the basic ventilation opening to continuously maintain the open state under the action of the She Lian opening and closing mechanism;
step five, reversely starting the shutter curtain opening and closing mechanism to enable the shutter curtain 225 to close the basic ventilation opening under the action of the She Lian opening and closing mechanism;
step six, an exhaust fan is opened, and then the centrifugal fan 23 is started and stopped circularly to perform intermittent centrifugal dust removal operation on a filter component at the air inlet of the dry type transformer bin 1, wherein the intermittent time is t0 until ventilation quantity information F fed back by a wind pressure flow sensor is in a preset ventilation quantity threshold F0 range; meanwhile, in the time t0 when the centrifugal fan 23 is intermittently stopped, a vibration mechanism is adopted to perform vibration dust removal operation on the filter component; in addition, in the process of circulating start and stop of the centrifugal fan 23, the working time of circulating start and stop of the centrifugal fan 23 is timed, and when the working time of circulating start and stop of the centrifugal fan 23 exceeds a preset time threshold, the step seven is entered;
and step seven, triggering an alarm device to prompt the failure of the dust removing operation of the filtering component.
Claims (10)
1. The ventilation system of the dry-type transformer box body of the new energy storage integrated machine is built based on a dry-type transformer bin and comprises a ventilation-dust removal mechanism, wherein the ventilation-dust removal mechanism comprises a ventilation mechanism and a dust removal mechanism; the ventilating mechanism comprises an exhaust fan, an external air inlet pipe and a ventilating channel, and the dust removing mechanism comprises a centrifugal fan and a filtering component; the external air inlet pipe is arranged at the outer side of the dry-type transformer bin and is arranged at an air inlet of the dry-type transformer bin, and the exhaust fan is arranged at an air outlet of the dry-type transformer bin; the centrifugal fan and the ventilation channel are arranged in the dry-type transformer bin, an air outlet of the centrifugal fan is communicated with an air outlet of an external air inlet pipe through the ventilation channel, and an air inlet A of the external air inlet pipe is provided with a filtering component; the ventilation channel is at least provided with an openable ventilation opening;
when the centrifugal fan is in a stop state, the openable vent is in an open state, and most of air led in through the external air inlet pipe is led into the dry-type transformer bin through the openable vent;
when the centrifugal fan is in a working state, the openable vent is in a closed state.
2. The ventilation system of the dry-type transformer tank body of the new energy storage integrated machine according to claim 1, wherein the openable vent is a movable shutter vent; the movable shutter ventilation opening comprises a basic ventilation opening, a shutter curtain and a shutter curtain opening and closing mechanism; the blind is arranged at the basic ventilation opening and is connected with the power output end of the blind opening and closing mechanism; under the power action of the shutter opening and closing mechanism, the shutter can open or close the basic ventilation opening.
3. The ventilation system of the dry transformer tank of the new energy and energy storage integrated machine according to claim 2, further comprising a PLC controller and a dust detection sensor;
the dust detection sensor is arranged in the ventilation channel and is used for detecting dust accumulation conditions of the filtering component and feeding detected information M1 back to the PLC;
the PLC comprises a dust judging module, a dust removing control module and a ventilation control module;
the dust judging module is used for judging whether the information M1 fed back by the received dust detection sensor is in a preset dust threshold M0 or not, and sending execution instructions to the dust removal control module and the ventilation control module according to a judging result;
the dust removal control module is used for automatically controlling the on-off of the centrifugal fan according to the execution instruction sent by the dust judgment module;
the ventilation control module is used for automatically controlling the working state of the She Lian opening and closing mechanism according to the execution instruction sent by the dust judging module;
when the judging result of the dust judging module indicates that the information M1 fed back by the dust detecting sensor is in a preset dust threshold M0, a first executing instruction is sent to the dust removing control module and the ventilation control module respectively: the shutter curtain opening and closing mechanism drives the shutter curtain under the control of the ventilation control module to close the basic ventilation opening, then the centrifugal fan is started and stopped circularly under the control of the dust removal control module, compressed gas is intermittently output from the air inlet A of the air inlet pipe outwards through the ventilation channel, dust removal treatment of the filtering component is achieved, and until the judging result of the dust judging module indicates that the information M1 fed back by the dust detecting sensor exceeds the preset dust threshold M0, a second executing instruction is sent to the dust removal control module and the ventilation control module respectively, so that the centrifugal fan is stopped under the control of the dust removal control module, and the She Lian opening and closing mechanism drives the shutter curtain under the control of the ventilation control module to open the basic ventilation opening.
4. The ventilation system of the dry-type transformer tank body of the new energy and energy storage integrated machine according to claim 3, wherein the ventilation and dust removal mechanism further comprises an alarm device, and the PLC further comprises an alarm triggering module; the alarm triggering module is in signal connection with the alarm device;
the alarm triggering module is constructed based on the accumulation of the start and stop times of the circulating start and stop centrifugal fans by a counter or based on the timing of the working time of the circulating start and stop centrifugal fans by a timer;
when the alarm triggering module is constructed by accumulating the start-stop times of the circulating start-stop centrifugal fan based on the counter, triggering the alarm module to output an alarm signal when the accumulated start-stop times of the alarm triggering module reach the preset alarm times;
when the alarm triggering module is constructed by timing the working time of the circulating start-stop centrifugal fan based on the timer, the alarm triggering module is triggered to output an alarm signal when the accumulated working time of the alarm triggering module exceeds the preset alarm time.
5. The ventilation system of the dry-type transformer tank body of the new energy and energy storage integrated machine according to claim 3, wherein the whole ventilation channel is a rectangular air channel;
the movable shutter ventilation openings are two and correspond to the first movable shutter ventilation opening and the second movable shutter ventilation opening; the basic ventilation openings of the first movable shutter ventilation openings and the basic ventilation openings of the second movable shutter ventilation openings are symmetrically arranged at two ends of the rectangular air duct along the vertical direction; the shutter opening and closing mechanism of the first movable shutter ventilation opening and the second movable shutter ventilation opening is arranged on the lateral wall of the rectangular air duct;
the rectangular air duct is communicated with two ends of the rectangular air duct along the length direction to form two ventilation openings, and the two ventilation openings are a first ventilation opening and a second ventilation opening correspondingly; the outer edge of the first vent is outwards provided with a connecting disc A, and an air outlet of the external air inlet pipe is provided with a connecting disc B matched with the connecting disc A; the outer edge of the second air vent is outwards provided with a connecting disc C, and the air outlet of the centrifugal fan is provided with a connecting disc D matched with the connecting disc C; the ventilation channel is connected with the centrifugal fan through the butt joint of the connecting disc C and the connecting disc D, and the ventilation channel is connected with the external air inlet pipe through the butt joint of the connecting disc A and the connecting disc B.
6. The ventilation system of the dry-type transformer tank of the new energy storage integrated machine according to claim 5, wherein the shutter opening and closing mechanism comprises a power driving mechanism and a shutter opening and closing transmission mechanism; the shutter opening and closing transmission mechanism comprises a main transmission wheel, a main transmission chain, a slave transmission wheel, a shutter transmission chain and a shutter transmission wheel;
the shutter comprises a plurality of shutter blades; two ends of each louver blade are respectively positioned and installed on the transverse end face of the rectangular air duct through a transmission shaft; the transmission shafts arranged at the end parts of the same side of each louver are sequentially named as a first transmission shaft and a second transmission shaft … … ith transmission shaft … … nth transmission shaft from the side close to the power driving mechanism;
the number of the shutter transmission chains is consistent with that of the shutter blades, and the shutter transmission chains are sequentially recorded as a first shutter transmission chain, a second shutter transmission chain … … and an ith shutter transmission chain … … from the side close to the power driving mechanism, wherein n represents the number of the shutter blades; each shutter driving chain is provided with two shutter driving wheels which are respectively meshed with the corresponding shutter driving chains, and the two shutter driving wheels are corresponding to the main shutter driving wheels and the auxiliary shutter driving wheels;
the main driving wheel and the auxiliary driving wheel are respectively meshed with the main driving chain, the main driving wheel is coaxially connected with the power output end of the power driving mechanism, the auxiliary driving wheel is positioned and installed on the transverse end face of the rectangular air duct through a first transmission shaft, the auxiliary shutter driving wheel of the first shutter driving chain is positioned and installed on the transverse end face of the rectangular air duct through a second transmission shaft, the auxiliary shutter driving wheel of the second shutter driving chain is positioned and installed on the transverse end face of the rectangular air duct through a third transmission shaft, and the auxiliary shutter driving wheel of the nth shutter driving chain is positioned and installed on the transverse end face of the rectangular air duct through an nth transmission shaft.
7. The ventilation system of the dry-type transformer tank of the new energy and energy storage integrated machine according to claim 6, wherein the first movable shutter ventilation opening and the second movable shutter ventilation opening share the same power driving mechanism, so that a main driving wheel in the shutter opening and closing mechanism of the first movable shutter ventilation opening and a main driving wheel in the shutter opening and closing mechanism of the second movable shutter ventilation opening are coaxially arranged and are respectively connected with a power output end of the power driving mechanism.
8. The ventilation system of the dry-type transformer tank body of the new energy and energy storage integrated machine according to claim 3, wherein the dust detection sensor is a photoelectric induction sensor or a wind pressure flow sensor; the photoelectric sensing sensor feeds back information M1 by sensing the dust amount accumulated on the filtering component; the wind pressure flow sensor feeds back dust accumulation conditions on the filter component by detecting ventilation quantity changes of the ventilation channel.
9. The ventilation system of the dry-type transformer tank body of the new energy and energy storage integrated machine according to claim 1, wherein an air inlet A of the external air inlet pipe is arranged on the lower bottom surface; the filter component is filter cotton and is paved at an air inlet A of an external air inlet pipe.
10. The new energy storage all-in-one dry transformer tank ventilation and dust removal method is realized based on the new energy storage all-in-one dry transformer tank ventilation system as claimed in claim 3, and is characterized by comprising the following steps:
step one, starting a ventilation and dust removal mechanism: in the initial state, an exhaust fan at an air outlet of the dry-type transformer bin is in an open state, the centrifugal fan is in a stop state, and the shutter curtain opens the basic ventilation opening under the action of the She Lian opening and closing mechanism, so that air sucked in through the air inlet of the dry-type transformer bin basically enters the dry-type transformer bin through the basic ventilation opening;
detecting the ventilation quantity of the dry-type transformer bin by adopting a wind pressure flow sensor arranged in the ventilation channel, and feeding back the detected ventilation quantity information F to the PLC; detecting the temperature in the dry-type transformer bin by adopting a temperature sensor arranged in the dry-type transformer bin, and feeding back detected temperature information T to the PLC;
step three, the PLC controller judges whether the ventilation quantity information F is in a preset ventilation quantity threshold F0 range or not and whether the temperature information T is in a preset temperature threshold T0 range or not based on the received ventilation quantity information F and the temperature information T, and when the judgment result shows that the ventilation quantity information F is in the preset ventilation quantity threshold F0 range and the temperature information T is also in the preset temperature threshold T0 range, the step four is entered; otherwise, entering a step five;
step four, the exhaust fan is continuously in an open state, the centrifugal fan is continuously in a stop state, and the shutter curtain is driven by the She Lian opening and closing mechanism to continuously maintain the basic ventilation opening in an open state;
step five, reversely starting the shutter curtain opening and closing mechanism to enable the shutter curtain to close the basic ventilation opening under the action of the She Lian opening and closing mechanism;
step six, opening an exhaust fan, and then circularly starting and stopping the centrifugal fan to perform intermittent centrifugal dust removal operation on a filter component at an air inlet of the dry type transformer bin, wherein the intermittent time is t0 until ventilation quantity information F fed back by the wind pressure flow sensor is in a preset ventilation quantity threshold F0 range; meanwhile, in the time t0 of intermittent manufacturing and stopping of the centrifugal fan, a vibration mechanism is adopted to perform vibration dust removal operation on the filter component; in addition, in the process of circulating start and stop of the centrifugal fan, the working time of the circulating start and stop centrifugal fan is timed, and when the working time of the circulating start and stop centrifugal fan exceeds a preset time threshold, the step seven is entered;
and step seven, triggering an alarm device to prompt the failure of the dust removing operation of the filtering component.
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| CN202311689783.4A CN117393277B (en) | 2023-12-11 | 2023-12-11 | Ventilation system and method for dry-type transformer box body of new energy storage integrated machine |
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| CN101504175A (en) * | 2009-03-11 | 2009-08-12 | 宾肯科技(北京)有限公司 | Fresh air introducing apparatus with self-cleaning function and its self-cleaning method |
| CN102829512A (en) * | 2011-08-03 | 2012-12-19 | 深圳市中兴新地通信器材有限公司 | Integrated automatic dedusting energy-saving system and conversion method thereof |
| CN111372430A (en) * | 2020-04-10 | 2020-07-03 | 广东海悟科技有限公司 | Fresh air device and control method thereof |
| CN114484727A (en) * | 2022-01-24 | 2022-05-13 | 宁波奥克斯电气股份有限公司 | Condenser dust removal method and device and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504175A (en) * | 2009-03-11 | 2009-08-12 | 宾肯科技(北京)有限公司 | Fresh air introducing apparatus with self-cleaning function and its self-cleaning method |
| CN102829512A (en) * | 2011-08-03 | 2012-12-19 | 深圳市中兴新地通信器材有限公司 | Integrated automatic dedusting energy-saving system and conversion method thereof |
| CN111372430A (en) * | 2020-04-10 | 2020-07-03 | 广东海悟科技有限公司 | Fresh air device and control method thereof |
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