CN112653155A - High-voltage reactive power compensation device with heat dissipation and dustproof protection intelligent switching - Google Patents
High-voltage reactive power compensation device with heat dissipation and dustproof protection intelligent switching Download PDFInfo
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- CN112653155A CN112653155A CN202011481554.XA CN202011481554A CN112653155A CN 112653155 A CN112653155 A CN 112653155A CN 202011481554 A CN202011481554 A CN 202011481554A CN 112653155 A CN112653155 A CN 112653155A
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- cylinder
- heat dissipation
- air inlet
- reactance
- assembly
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention relates to the technical field of high-voltage reactive power compensation devices, and particularly discloses a high-voltage reactive power compensation device with intelligent switching of heat dissipation and dustproof protection, which comprises a first box body and a second box body, wherein the first box body is used for dissipating heat of a capacitor assembly and a reactance assembly; the first box body comprises a cylindrical capacitor installation box, a cylindrical reactance installation box and a heat dissipation assembly, wherein the cylindrical reactance installation box is installed at the upper end of the capacitor installation box; the reactance mounting box comprises a first cylinder, an upper end cover plate and a lower end cover plate which are respectively mounted at the upper end and the lower end of the first cylinder, and a plurality of first separating plates which are arranged on the lower end cover plate and are used for forming reactance cooling air channels; the device can realize high-efficient heat dissipation through cellular-type installation electric capacity and reactance, central authorities' single channel air inlet.
Description
Technical Field
The invention relates to the technical field of high-voltage reactive power compensation devices, in particular to a high-voltage reactive power compensation device with intelligent switching of heat dissipation and dustproof protection.
Background
The high-voltage capacitor and the high-voltage reactor in the high-voltage reactive power compensation device are sensitive to temperature, and have certain requirements on the external environment temperature in use; when the capacitor normally works, the ambient rated environment temperature is generally between-20 ℃ and 40 ℃; the temperature of the internal medium of the device is lower than 65 ℃; the service life of the high-voltage capacitor is shortened when the temperature is too high, if the temperature of the high-voltage capacitor is too high, no cooling measures are taken, so that the insulating oil generates a large amount of gas to deform and bulge the wall of the tank, the breakdown and explosion of the high-voltage capacitor are caused, and further, greater accidents are induced. And the reactor in the high-voltage reactive power compensation device can generate a large amount of heat in the working process according to the electromagnetic working principle of the reactor, so that the internal temperature of the high-voltage reactive power compensation device is further gradually increased, and the high-voltage reactive power compensation device has larger potential safety hazard.
The arrangement positions of capacitors and reactors in the current high-voltage reactive power compensation device are random, and a plurality of capacitors and reactors in a high-voltage reactive power compensation cabinet are arranged close to each other, so that heat generated by the reactors easily affects the capacitors, the service life of the capacitors is seriously affected, and the reactors are aged due to long-term high-temperature state; and the radiating system radiating efficiency of the existing high-voltage reactive power compensation cabinet is lower, and because the radiating system is arranged to cause the loss of dustproof performance, the existence of dust causes adverse effect on the high-voltage reactive power compensation device, thereby causing vicious circle and seriously reducing the service life of the equipment.
Therefore, the high-voltage reactive power compensation device with high heat dissipation efficiency, a dustproof function and a certain intelligent degree is required to be designed, the adverse effect on equipment caused by insufficient heat dissipation and dust pollution is reduced, and the safety of the high-voltage reactive power compensation device is improved.
Disclosure of Invention
The technical problem solved by the invention is as follows: the invention provides a high-voltage reactive power compensation device with intelligent switching of heat dissipation and dustproof protection, which can realize high-efficiency heat dissipation by installing a capacitor and a reactor in a separated manner and feeding air into a central single channel; the electromagnetic pressure relief valve replaces an air outlet to realize effective separation of the external environment, so that dust prevention is realized; can realize dustproof and radiating quick intelligence switching through temperature sensor, controller, power component's setting.
The technical scheme of the invention is as follows: a high-voltage reactive power compensation device with intelligent switching of heat dissipation and dustproof protection comprises a first box body and a second box body, wherein the first box body is used for dissipating heat of a capacitor assembly and a reactance assembly;
the first box body comprises a cylindrical capacitor installation box, a cylindrical reactance installation box and a heat dissipation assembly, wherein the cylindrical reactance installation box is installed at the upper end of the capacitor installation box;
the reactance mounting box comprises a first cylinder, an upper end cover plate and a lower end cover plate which are respectively mounted at the upper end and the lower end of the first cylinder, a plurality of reactance assemblies which are uniformly mounted on the upper surface of the lower end cover plate in a circumferential manner, and a plurality of first partition plates which are arranged on the lower end cover plate and are positioned between the reactance assemblies at intervals and used for forming reactance cooling air channels;
the heat dissipation assembly comprises a central air inlet channel, a dustproof conversion assembly, a heat dissipation fan and a pressure relief tank, wherein the central air inlet channel penetrates through an upper end cover plate and is installed in the center of a lower end cover plate;
the side surface of the central air inlet channel is provided with a plurality of air inlets;
the lower end cover plate is provided with a plurality of first ventilation openings which are respectively communicated with the air inlet; the first partition plate, the upper end cover plate and the lower end cover plate can form a cavity for mounting the reactance component, and the air flow of the air inlet penetrates through the cavity to reach the first ventilation opening to finish air cooling and cooling of the reactance component;
the dustproof conversion assembly comprises a sealing sliding cover arranged at the upper end of a central air inlet channel, a power assembly which is fixed in the central air inlet channel and supplies power to the sealing sliding cover and is electrically connected with the controller, an air inlet groove which is fixedly arranged at the upper end of the central air inlet channel and is in sliding connection with the sealing sliding cover, and a first temperature sensor which is used for monitoring the temperature of the reactance assembly and is electrically connected with the controller;
a sealing sliding block which is connected with the air inlet groove in a sliding manner is arranged in the sealing sliding cover;
the capacitor installation box comprises a second cylinder, a third cylinder, a plurality of second partition plates and a base plate, wherein the second cylinder is installed on the lower end cover plate and is coaxial with the lower end cover plate; the second cylinder, the third cylinder, the second partition plate and the base plate form a capacitor holding cavity;
the upper end of the capacitor containing cavity is communicated with the first vent;
the capacitor assembly is arranged in the capacitor containing cavity; the capacitor holding cavities are multiple and used for realizing one-to-one corresponding installation protection on the capacitor components; the first ventilation opening can cool the capacitor assembly through air cooling from the upper end and then is discharged from the lower end.
The lower end of the third cylinder is provided with a plurality of second ventilation openings which are respectively communicated with the lower end of the capacitor containing cavity;
the pressure relief tank comprises a pressure relief tank body connected with the second ventilation opening, a one-way valve arranged at the joint of the pressure relief tank body and the second ventilation opening, and an electromagnetic pressure relief valve and a pressure sensor which are arranged on the pressure relief tank body and electrically connected with the controller.
The pressure relief tank body can collect air in all the second air vents through the one-way valves, and the one-way valves can separate the pressure of the pressure relief tank body from the pressure of the capacitor containing cavity, so that the influence of the pressure rise in the pressure relief tank on air inlet is avoided, and the air inlet resistance is increased; the pressure sensor can detect the pressure change in the pressure relief tank, and the electromagnetic pressure relief valve is connected with the controller to realize automatic pressure relief.
Furthermore, a wind pressure compensation component is also arranged at the joint of the pressure relief tank body and the lower end cover plate;
the setting of wind pressure compensation subassembly can utilize the internal pressure of pressure release jar to realize the secondary air flow compensation to central air inlet channel, through extra air flow compensation, accomplishes the recycle once more to the radiator fan acting, and then effectively improves the radiating efficiency of whole device to promote the improvement of energy conversion utilization ratio.
Furthermore, the wind pressure compensation assembly comprises a circular chuck arranged above the lower end cover plate, an elastic element with the upper end fixed and the lower end connected with the circular chuck, an exhaust part arranged at the lower end of the circular chuck, and a conical gas collecting cylinder arranged at the lower end of the exhaust part; the side surface of the conical gas collecting cylinder is in sliding connection with the inner wall of the pressure relief tank body; the side of the exhaust part is provided with a plurality of wind pressure compensation holes which can be communicated with the air inlet respectively.
The circular chuck is arranged above the lower end cover plate, so that an installation base plate can be provided for the wind pressure compensation assembly, and an elastic element is arranged at the upper end of the circular chuck, so that a limiting part is ensured to move upwards in the circular chuck; the elastic element can provide exhaust resistance for an exhaust piece at the lower end of the circular chuck, when the pressure in the pressure relief tank body is greater than the limit value of the elastic element, the circular chuck is jacked open by air pressure through the conical gas collecting cylinder, the air pressure is exhausted through the air pressure compensation hole in the exhaust piece, the reactance component is cooled by air, and then the air flow sequentially passes through the first vent and the second vent and enters the pressure relief tank body to form circulation;
the elastic element has the advantages that the circulating airflow discharged from the wind pressure compensation hole at each time is ensured to have certain kinetic energy initial speed, and the heat dissipation efficiency is effectively improved.
Furthermore, a second temperature sensor electrically connected with the controller is arranged in the second cylinder and the pressure relief tank body. The second temperature sensor can detect the temperature of the capacitor assembly in the capacitor containing cavity and detect the temperature of the reactance assembly in real time, so that the controller can control the cooling fan timely and reasonably according to the temperature, effective cooling is ensured, and potential safety hazards caused by overhigh temperature of the reactance assembly are avoided;
on the other hand, the second temperature sensor can detect the temperature in the pressure relief tank body, and the temperature of the air flow is increased due to the fact that the air flow circulates through the capacitor assembly and the reactance assembly for multiple times, so that the heat dissipation efficiency is low; at this moment, the temperature is detected and judged through the second temperature sensor, if the temperature is too high, the air is discharged through the electromagnetic pressure release valve, and then the pressure release tank continues to store the air with lower temperature.
Furthermore, a conical flow divider is arranged in the center of the upper end face of the circular chuck; the conical flow divider comprises a conical base body and an air flow dividing plate arranged on the conical base body. The circular chuck is positioned in the center of the reactance installation box and the central air inlet channel, and cold air driven by the cooling fan can be uniformly distributed and enters the air inlet by arranging the conical splitter on the circular chuck, so that the balance of heat dissipation is ensured; the setting of toper base member can effectively reduce central air inlet channel from the top down air inlet windage when getting into the air intake, and the air splitter plate can guarantee the evenly distributed of air current, guarantees to realize even forced air cooling heat dissipation to every passageway, effectively prevents the local high temperature of unbalanced production to dispel the heat untimely, produce bad influence.
Further, the sealing slide block is an I-shaped slide block; and a dustproof sealing strip is arranged at the joint of the I-shaped sliding block and the air inlet groove. The I-shaped sliding block is arranged, the U-shaped grooves on the two sides of the I-shaped sliding block can be in good contact with the air inlet groove, and a good installation environment is provided for arranging the dustproof sealing strip.
The dustproof sealing strip adopts an electric cabinet sealing strip commonly used in the market; the electric cabinet sealing strip is formed by foaming and closely compounding Ethylene Propylene Diene Monomer (EPDM) rubber with good elasticity, compression deformation resistance, aging resistance, ozone resistance, chemical action and wider use temperature range, contains a unique metal clamp and a tongue-shaped buckle, is firm and durable, and can realize good sealing and dustproof effects.
Furthermore, the power assembly comprises a motor bracket arranged in the central air inlet channel, a servo motor fixedly arranged on the motor bracket, a lead screw with one end connected with the servo motor and the other end penetrating through the center of the sealing sliding cover, and a rotating ring arranged at the penetrating position of the center of the sealing sliding cover; and a threaded hole in threaded connection with the lead screw is formed in the center of the rotating ring. The motor bracket is used for installing and fixing a servo motor, the servo motor can realize the rotary driving of the lead screw, and further realize the up-and-down control of the sealing sliding cover through a rotating ring in threaded connection; through servo motor and controller electric connection combine first temperature sensor, second temperature sensor can realize the automatic control to sealed sliding closure, realize dustproof and radiating switching fast.
Furthermore, an air filtering component is arranged inside the central air inlet channel and below the motor support; the air filtering component comprises two layers of filtering cotton and a primary filter arranged between the two layers of filtering cotton. The primary filter is suitable for primary filtration of an air conditioning system and is mainly used for filtering dust particles with the particle size of more than 5 mu m. The outer frame of the primary filter is composed of firm waterproof boards and is used for fixing the folded filter materials. This provides a large filtration area and provides a tight adhesion of the inner filter to the outer frame. The periphery of the filter is bonded with the outer frame by special professional bonding glue, so that the air leakage or the damage caused by wind resistance pressure can be prevented.
The filter cotton is glass fiber filter cotton; the glass fiber filter cotton is mainly made of glass fibers with different thicknesses and lengths through a special processing technology. The glass fiber has stable performance, including high temperature resistance, high efficiency, large capacity, long service life and the like.
Furthermore, a temperature real-time recording device, a temperature alarm device, a temperature recording wireless transmitting device and a terminal display device are arranged in the first box body, wherein the temperature real-time recording device, the temperature alarm device and the temperature recording wireless transmitting device are electrically connected with the controller, and the terminal display device is connected with the temperature recording wireless transmitting device and the temperature alarm device. The temperature alarm is an instrument for detecting the outside temperature in real time by using a temperature sensor.
When the temperature exceeds or falls below a threshold value set by the user, an alarm is given to the outside. And the temperature alarm can be connected with a plurality of alarm devices, and can directly send alarm information or real-time temperature information to workers by using sound equipment, a prompt lamp or a connection network.
The terminal display is a medium for information exchange, communication and interaction between the electromechanical system and an operator, combines characters on an operation panel of the terminal display, and controls buttons on the panel through the terminal display, so that the operator can conveniently complete the setting of parameters required by the electromechanical system, and execute an industrial automatic control program, a large amount of wiring required by the traditional control panel is greatly reduced, the failure rate of the electromechanical system is reduced, and the stability of the electromechanical system is improved.
Further, the outer layers of the first cylinder and the second cylinder are coated with antistatic coatings. The paint of the antistatic coating can conduct and discharge static voltage to accumulate in a short time of 2-10 seconds, so that accidents of fire alarm or damage to electronic components caused by discharge are avoided; wherein the antistatic coating is a PVC antistatic coating;
the PVC antistatic layer is also called antistatic polyvinyl chloride plate, and the base material is PVC (polyvinyl chloride). Through the coating technology, the PVC film has excellent antistatic function on the basis of perfectly keeping the performances of corrosion resistance, flame retardance and the like of PVC.
The invention has the beneficial effects that: the invention provides a high-voltage reactive power compensation device with intelligent switching of heat dissipation and dustproof protection, which can realize high-efficiency heat dissipation by installing a capacitor and a reactor in a separated manner and feeding air into a central single channel; the electromagnetic pressure relief valve replaces an air outlet to realize effective separation of the external environment, so that dust prevention is realized; can realize dustproof and radiating quick intelligence switching through temperature sensor, controller, power component's setting.
According to the invention, the capacitor installation box and the reactance installation box are arranged, so that the separated installation of the capacitor and the reactance can be realized, the influence of heat generated by the reactor on the capacitor can be effectively prevented, and the problem of the reduction of the service life of the capacitor caused by direct heat conduction between the capacitor and the reactor is fundamentally solved; and the placing positions of the capacitor and the reactor in the device are circumferentially arranged, the reactor and the reactor as well as the capacitor and the capacitor are uniformly spaced, on one hand, the mutual influence of the heating bodies is effectively reduced, and on the other hand, the independent installation space can play a certain role in protecting the reactor and the reactor.
The center of the upper end of the reactance installation box is provided with the heat dissipation assembly, and air can be fed into a plurality of reactance assemblies in the reactance installation box from the center through the central air inlet channel; the air cooling of the reactance component and the capacitance component can be realized through the arrangement of the air inlet, the first ventilation opening and the second ventilation opening; the central flow distribution is completed, and the high-efficiency cooling is completed through a plurality of partition air channels and cavities.
The pressure relief tank, the electromagnetic pressure relief valve and the one-way valve are arranged to replace an air outlet, so that the contact area with the external environment can be effectively isolated, and pollutants such as dust and the like can be effectively prevented from entering the device; air is fed through a central air inlet channel, and a sealing slide block is arranged at the air inlet groove, so that dust prevention protection can be effectively realized when air is not fed; can realize dustproof and radiating quick intelligence switching through temperature sensor, controller, power component's setting.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of an air inlet and a first ventilation opening in example 1 of the present invention;
fig. 3 is a schematic structural diagram of a heat dissipation assembly in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a dustproof switching assembly according to embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a capacitor installation box according to embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a capacitor installation box according to embodiment 1 of the present invention;
fig. 7 is a schematic cross-sectional view of a wind pressure compensating assembly according to embodiment 2 of the present invention;
FIG. 8 is a schematic structural view of a tapered flow diverter according to example 2 of the present invention;
wherein, 1-reactance installation box, 11-first cylinder, 12-lower end cover plate, 121-first ventilation opening, 13-first partition plate, 14-reactance component, 2-heat dissipation component, 21-central air inlet channel, 211-air inlet, 22-dustproof conversion component, 221-sealing sliding cover, 222-air inlet groove, 223-dustproof sealing strip, 224-motor bracket, 225-lead screw, 23-pressure relief tank, 231-pressure relief tank, 24-wind pressure compensation component, 241-circular chuck, 242-elastic element, 243-exhaust piece, 244-conical gas collecting cylinder, 245-conical flow divider, 3-capacitor installation box, 31-second cylinder, 32-third cylinder, 321-second ventilation opening and 33-second partition plate.
Detailed Description
Example 1: as shown in fig. 1, the high-voltage reactive power compensation device with intelligent switching of heat dissipation and dustproof protection comprises a first box body for dissipating heat of a capacitor assembly and a reactance assembly, and a second box body which is installed on the first box body and is internally provided with a controller;
as shown in fig. 1, the first box body comprises a cylindrical capacitor installation box 3, a cylindrical reactance installation box 1 installed at the upper end of the capacitor installation box 3, and a heat dissipation assembly 2 installed at the center of the upper end of the reactance installation box 1;
as shown in fig. 1 and 2, the reactance mounting box 1 comprises a first cylinder 11, an upper end cover plate and a lower end cover plate 12 which are respectively mounted at the upper end and the lower end of the first cylinder 11, 9 reactance modules 14 which are uniformly mounted on the upper surface of the lower end cover plate 12 in a circumferential manner, and 9 first separating plates 13 which are arranged on the lower end cover plate 12 and are spaced between the reactance modules 14 for forming reactance cooling air ducts;
as shown in fig. 2 and 3, the heat dissipation assembly 2 includes a central air intake channel 21 penetrating through the upper end cover plate and installed at the center of the lower end cover plate 12, a dustproof conversion assembly 22 installed at the upper end of the central air intake channel 21, a heat dissipation fan installed in the middle of the central air intake channel 21, and a pressure relief tank 23 disposed at the lower end of the central air intake channel 21;
as shown in fig. 2, the side of the central air intake channel 21 is provided with 9 air intakes 211;
the lower end cover plate 12 is provided with 9 first ventilation openings 121 which are respectively communicated with the air inlet 211;
as shown in fig. 3 and 4, the dustproof switching component 22 includes a sealing sliding cover 221 installed at the upper end of the central air inlet channel 21, a power component fixed in the central air inlet channel 21 and providing power to the sealing sliding cover 221 and electrically connected to the controller, an air inlet slot 222 fixedly installed at the upper end of the central air inlet channel 21 and slidably connected to the sealing sliding cover 221, and a first temperature sensor for monitoring the temperature of the reactance component 14 and electrically connected to the controller; a sealing slide block which is connected with the air inlet groove 222 in a sliding manner is arranged in the sealing slide cover 221;
as shown in fig. 2 and 5, the capacitor installation box 3 includes a second cylinder 31 installed on the lower end cover plate 12 and coaxial with the lower end cover plate 12, a third cylinder 32 sleeved inside the second cylinder 31 and having an upper end connected with the lower end cover plate 12, 9 second partition plates 33 for connecting the second cylinder 31 and the third cylinder 32, and a base plate installed at the bottoms of the second cylinder 31, the third cylinder 32 and the second partition plates 33; the second cylinder 31, the third cylinder 32, the second partition plate 33 and the base plate form a capacitor holding cavity;
the upper end of the capacitor containing cavity is communicated with the first vent 121;
the capacitor assembly is arranged in the capacitor containing cavity;
as shown in fig. 6, the lower end of the third cylinder 32 is provided with 9 second ventilation openings 321 respectively communicated with the lower end of the capacitor holding cavity;
as shown in fig. 6, the pressure relief tank 23 includes a pressure relief tank 231 connected to the second vent 321, a one-way valve disposed at a connection position of the pressure relief tank 231 and the second vent 321, an electromagnetic pressure relief valve installed on the pressure relief tank 231 and electrically connected to the controller, and a pressure sensor.
As shown in fig. 4, the sealing slider is an i-shaped slider; and a dustproof sealing strip 223 is arranged at the joint of the I-shaped sliding block and the air inlet groove 222.
As shown in fig. 4, the power assembly includes a motor bracket 224 disposed inside the central air intake channel 21, a servo motor fixedly mounted on the motor bracket 224, a lead screw 225 having one end connected to the servo motor and the other end penetrating through the center of the sealing sliding cover 221, and a rotating ring disposed at the center penetration of the sealing sliding cover 221; the center of the rotating ring is provided with a threaded hole in threaded connection with the lead screw 225.
Wherein, the inside of the central air intake channel 21 is provided with an air filtering component below the motor bracket 224; the air filtering component comprises two layers of filtering cotton and a primary filter arranged between the two layers of filtering cotton.
Wherein, controller, primary filter, filter pulp, servo motor, dust seal 223, electromagnetism relief valve, pressure sensor, first temperature sensor, radiator fan all adopt the product of selling on the market.
Example 2: different from embodiment 1, as shown in fig. 7, a wind pressure compensating assembly 24 is further provided at the connection between the pressure relief tank 231 and the lower end cover plate 12.
As shown in fig. 7, the wind pressure compensating assembly 24 includes a circular chuck 241 disposed above the lower end cover 12, an elastic member 242 fixed at the upper end and connected at the lower end to the circular chuck 241, an air discharge member 243 installed at the lower end of the circular chuck 241, a cone-shaped air collecting cylinder 244 installed at the lower end of the air discharge member 243; the side surface of the conical gas collecting cylinder 244 is connected with the inner wall of the pressure relief tank body 231 in a sliding manner; the exhaust member 243 has a plurality of wind pressure compensation holes formed in a side thereof to be respectively communicated with the wind inlets 211.
Wherein, a second temperature sensor electrically connected with the controller is further disposed in the second cylinder 31 and the pressure relief tank 231.
As shown in fig. 8, the center of the upper end surface of the circular chuck 241 is also provided with a tapered diverter 245; the tapered flow diverter 245 includes a tapered base and an air diverter plate disposed on the tapered base.
Wherein, the second temperature sensor adopts a commercial product.
Example 3: different from the embodiment 1, the first box body is also internally provided with a temperature real-time recording device, a temperature alarm device and a temperature recording wireless transmitting device which are electrically connected with the controller, and a terminal display device connected with the temperature recording wireless transmitting device and the temperature alarm device.
The temperature real-time recording device, the temperature alarm device, the temperature recording wireless transmitting device and the terminal display device are all commercially available products.
Example 4: different from the embodiment 1, the outer layers of the first cylinder 11 and the second cylinder 31 are coated with antistatic coatings.
Wherein, the antistatic coating is a commercial PVC antistatic coating.
Claims (10)
1. A high-voltage reactive power compensation device with intelligent switching of heat dissipation and dustproof protection is characterized by comprising a first box body and a second box body, wherein the first box body is used for dissipating heat of a capacitor assembly and a reactance assembly;
the first box body comprises a cylindrical capacitor installation box (3), a cylindrical reactance installation box (1) which is installed at the upper end of the capacitor installation box (3), and a heat dissipation assembly (2) which is installed at the center of the upper end of the reactance installation box (1);
the reactance mounting box (1) comprises a first cylinder (11), an upper end cover plate and a lower end cover plate (12) which are respectively mounted at the upper end and the lower end of the first cylinder (11), a plurality of reactance components (14) which are uniformly mounted on the upper surface of the lower end cover plate (12) in a circumferential manner, and a plurality of first partition plates (13) which are arranged on the lower end cover plate (12) and are positioned among the reactance components (14) at intervals and used for forming reactance cooling air channels;
the heat dissipation assembly (2) comprises a central air inlet channel (21) penetrating through an upper end cover plate and mounted at the center of a lower end cover plate (12), a dustproof conversion assembly (22) mounted at the upper end of the central air inlet channel (21), a heat dissipation fan mounted in the middle of the central air inlet channel (21), and a pressure relief tank (23) arranged at the lower end of the central air inlet channel (21);
the side surface of the central air inlet channel (21) is provided with a plurality of air inlets (211); the lower end cover plate (12) is provided with a plurality of first ventilation openings (121) which are respectively communicated with the air inlet (211);
the dustproof conversion assembly (22) comprises a sealing sliding cover (221) arranged at the upper end of a central air inlet channel (21), a power assembly which is fixed in the central air inlet channel (21) and supplies power to the sealing sliding cover (221) and is electrically connected with the controller, an air inlet groove (222) which is fixedly arranged at the upper end of the central air inlet channel (21) and is slidably connected with the sealing sliding cover (221), and a first temperature sensor which is used for monitoring the temperature of the reactance assembly (14) and is electrically connected with the controller; a sealing sliding block which is connected with the air inlet groove (222) in a sliding manner is arranged in the sealing sliding cover (221);
the capacitor installation box (3) comprises a second cylinder (31) which is installed on the lower end cover plate (12) and is coaxial with the lower end cover plate (12), a third cylinder (32) which is sleeved inside the second cylinder (31) and is connected with the lower end cover plate (12) at the upper end, a plurality of second partition plates (33) which are used for connecting the second cylinder (31) and the third cylinder (32), and a base disc which is installed at the bottoms of the second cylinder (31), the third cylinder (32) and the second partition plates (33); the second cylinder (31), the third cylinder (32), the second partition plate (33) and the base plate form a capacitor holding cavity;
the upper end of the capacitor containing cavity is communicated with a first vent (121); the capacitor assembly is arranged in the capacitor containing cavity; the lower end of the third cylinder (32) is provided with a plurality of second ventilation openings (321) which are respectively communicated with the lower end of the capacitor containing cavity;
the pressure relief tank (23) comprises a pressure relief tank body (231) connected with the second ventilation opening (321), a one-way valve arranged at the joint of the pressure relief tank body (231) and the second ventilation opening (321), and an electromagnetic pressure relief valve and a pressure sensor which are arranged on the pressure relief tank body (231) and electrically connected with the controller.
2. The high-voltage reactive power compensation device with the intelligent switching function of heat dissipation and dust prevention as claimed in claim 1, wherein a wind pressure compensation assembly (24) is further disposed at a connection position of the pressure relief tank (231) and the lower end cover plate (12).
3. The high-voltage reactive power compensation device with intelligent switching of heat dissipation and dust protection as claimed in claim 2, wherein the wind pressure compensation assembly (24) comprises a circular chuck (241) disposed above the lower end cover body (12), an elastic element (242) fixed at the upper end and connected with the circular chuck (241) at the lower end, an exhaust member (243) installed at the lower end of the circular chuck (241), and a conical gas collecting cylinder (244) installed at the lower end of the exhaust member (243); the side surface of the conical gas collecting cylinder (244) is in sliding connection with the inner wall of the pressure relief tank body (231); the side surface of the exhaust member (243) is provided with a plurality of wind pressure compensation holes which can be respectively communicated with the wind inlet (211).
4. The high-voltage reactive power compensation device with the intelligent switching functions of heat dissipation and dust prevention as claimed in claim 3, wherein a second temperature sensor electrically connected with the controller is further disposed in the second cylinder (31) and the pressure relief tank (231).
5. The high-voltage reactive power compensation device with the intelligent switching function of heat dissipation and dust prevention as claimed in claim 3, wherein a tapered shunt (245) is further arranged at the center of the upper end face of the circular chuck (241); the tapered flow splitter (245) includes a tapered base and an air splitter plate disposed on the tapered base.
6. The high-voltage reactive power compensation device with intelligent switching of heat dissipation and dust prevention of claim 1, wherein the sealing slider is an i-shaped slider; and a dustproof sealing strip (223) is arranged at the joint of the I-shaped sliding block and the air inlet groove (222).
7. The high-voltage reactive power compensation device with the intelligent switching function of heat dissipation and dust prevention according to claim 1, wherein the power assembly comprises a motor bracket (224) arranged inside the central air intake channel (21), a servo motor fixedly arranged on the motor bracket (224), a lead screw (225) with one end connected with the servo motor and the other end penetrating through the center of the sealing sliding cover (221), and a rotating ring arranged at the center penetrating position of the sealing sliding cover (221); the center of the rotating ring is provided with a threaded hole in threaded connection with a lead screw (225).
8. The high-voltage reactive power compensation device with the intelligent switching function of heat dissipation and dust prevention as claimed in claim 7, wherein an air filtering component is arranged below the motor support (224) inside the central air inlet channel (21); the air filtering component comprises two layers of filtering cotton and a primary filter arranged between the two layers of filtering cotton.
9. The high-voltage reactive power compensation device with the intelligent switching function of heat dissipation and dustproof protection as claimed in claim 1, wherein a real-time temperature recording device, a temperature alarm device, a wireless temperature recording and transmitting device and a terminal display device connected with the wireless temperature recording and transmitting device and the temperature alarm device are further arranged in the first box body and electrically connected with the controller.
10. The high-voltage reactive power compensation device with the intelligent switching function of heat dissipation and dust prevention as claimed in claim 1, wherein the outer layers of the first cylinder (11) and the second cylinder (31) are coated with antistatic coatings.
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| CN202011481554.XA CN112653155B (en) | 2020-12-15 | 2020-12-15 | High-voltage reactive power compensation device with heat dissipation and dustproof protection intelligent switching |
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| CN202011481554.XA CN112653155B (en) | 2020-12-15 | 2020-12-15 | High-voltage reactive power compensation device with heat dissipation and dustproof protection intelligent switching |
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| CN112653155A true CN112653155A (en) | 2021-04-13 |
| CN112653155B CN112653155B (en) | 2023-01-10 |
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| CN111148404A (en) * | 2019-12-05 | 2020-05-12 | 漳州市台联电力科技有限公司 | High-precision reactive compensation controller |
| CN212012153U (en) * | 2020-05-25 | 2020-11-24 | 郑州易能科技有限公司 | Low-voltage reactive compensation control box |
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| US20140063739A1 (en) * | 2012-08-30 | 2014-03-06 | Delta Electronics, Inc. | Heat-dissipating system for high-power cabinet and static var compensation system |
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| CN112653155B (en) | 2023-01-10 |
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