Drawer type low-voltage reactive power compensation cabinet and low-voltage reactive power compensation device
Technical Field
The invention belongs to the technical field of compensation cabinets, and particularly relates to a drawer type low-voltage reactive power compensation cabinet and a low-voltage reactive power compensation device.
Background
With the continuous development of society, the electric automation industry has rapidly developed. In the electrical automation industry, low-voltage reactive power compensation cabinets are an important component.
The low-voltage reactive power compensation cabinet adopts a fixed cabinet type, components and parts bulk mode, protection level IP2X or IP3X, and in order to deal with the heat dissipation requirement of components and parts in the cabinet, the fan is generally additionally arranged at the back door of the cabinet body for heat dissipation, and the air inlet is mostly shielded through the dust screen when the existing low-voltage reactive power compensation cabinet dissipates heat, and although the dust screen can shield dust, moisture carried in the air cannot be blocked, so that a large amount of moisture can enter the cabinet body to cause that the components and parts in the cabinet body cannot be used or damaged when the cabinet is used in a large-moisture environment, and the protection effect is poor.
Disclosure of Invention
The invention aims to provide a drawer type low-voltage reactive power compensation cabinet and a low-voltage reactive power compensation device, and aims to solve the technical problem that in the prior art, components are damaged and cannot be used due to the fact that humid air enters the cabinet body.
The invention discloses a drawer type low-voltage reactive power compensation cabinet, which comprises a cabinet body, wherein one side of the cabinet body is hinged with a back cover plate, a second partition plate is fixedly arranged in the cabinet body, a plurality of groups of first partition plates are fixedly arranged on the second partition plate, a plurality of groups of drawer boxes which are distributed with the first partition plates at intervals are arranged in the cabinet body, through holes are formed in the side walls of the drawer boxes in an opening and closing manner, air outlet holes are formed in the side surfaces of the drawer boxes, which are close to the second partition plate, of the drawer boxes, and a busbar module which is matched with the drawer boxes for use is fixedly arranged on the second partition plate;
The utility model discloses a cabinet, including cabinet body, drawer box, air inlet fan, air inlet hole, air outlet hole, air inlet fan and air outlet hole, the recess has all been seted up to the position that cabinet body both sides and drawer box correspond, and recess is all seted up to the position that recess both sides and drawer box correspond, and fixed mounting has two sets of horizontal pipes in the recess, is provided with two sets of grid boards and fills the molecular sieve between two sets of grid boards in the horizontal pipe, and horizontal pipe and the cabinet body correspond the regional intercommunication that drawer box is located, the both ends of recess are provided with inlet port and the exhaust hole of seting up on cabinet body lateral wall respectively, and inlet port and two sets of horizontal pipes all communicate, and the tip of inlet port is provided with the dust screen, exhaust hole and recess intercommunication, the exhaust hole communicates through first pipe with the apopore on the drawer box that corresponds, and first exhaust fan is installed in the first pipe internal rotation.
According to the technical scheme, a plurality of groups of air inlet grooves are formed in the upper end and the lower end of the rear cover plate at intervals, and a plurality of groups of second exhaust fans are fixedly arranged at one end, far away from the air inlet grooves, of the rear cover plate.
According to a further technical scheme, the transverse tube is communicated with a second guide tube, the second guide tube is communicated with an air inlet chamber fixedly arranged in the groove, and a plurality of groups of cooling holes which are distributed at intervals are formed in the side wall of the air inlet chamber.
According to the technical scheme, the transverse pipe is characterized in that support plates are fixedly arranged at two ends of the transverse pipe, through holes with steps are formed in the middle of the support plates, a support is fixedly arranged on the support plates, a baffle plate for closing the through holes in the support plates is slidably arranged on the support plates, a first elastic piece is fixedly arranged on the surface of the baffle plate, which is far away from the support plates, and one end of the first elastic piece, which is far away from the baffle plate, is fixedly connected with the support.
According to the technical scheme, a second cross rod is arranged in the cross tube, first cross rods are slidably arranged at two ends of the second cross rod, the grating plate is fixedly arranged at one end, far away from the second cross rod, of the first cross rod, an air bag located at one side, far away from the second cross rod, of the grating plate is fixedly arranged on the first cross rod, the air bag is in contact with the inner wall of the cross tube, baffle rings matched with the air bag are fixedly arranged at two ends of the cross tube, and a gap is formed between the baffle rings and the inner wall of the cross tube.
According to the further technical scheme, the exhaust holes are communicated with the two groups of transverse pipes, a third guide pipe is communicated with the transverse pipes, the third guide pipe is communicated with the outside, and the areas in the transverse pipes are separated through the air bags.
According to a further technical scheme, a connecting groove for a second cross rod to extend in is formed in the end portion of the first cross rod, second elastic pieces distributed around the second cross rod are fixedly arranged at the end portion, close to the second cross rod, of the first cross rod, and one end, far away from the first cross rod, of the second elastic pieces is fixedly connected with the middle portion of the second cross rod.
According to the further technical scheme, a first magnet ring is fixedly arranged on the second cross rod, the first magnet ring is in sliding contact with the inner wall of the transverse tube, a second magnet ring is arranged on the outer side face of the transverse tube in a sliding mode, the second magnet ring adsorbs the first magnet ring, and a synchronous belt driving the second magnet rings on the two groups of transverse tubes to synchronously and reversely move is arranged in the groove.
According to the technical scheme, the two groups of rotating shafts are rotatably arranged in the grooves, the rotating shafts penetrate through all the grooves, synchronous wheels positioned in the grooves are fixedly arranged on the rotating shafts, a synchronous belt is rotatably arranged on the synchronous wheels, a connecting rod is fixedly connected to a second magnet ring, the connecting rod is fixedly connected with the synchronous belt, and a rotary power piece for driving one group of rotating shafts to rotate is fixedly arranged in the groove at the lowest side.
The invention also provides a low-voltage reactive power compensation device, which comprises the drawer type low-voltage reactive power compensation cabinet, a plurality of groups of reactive power compensation modules and reactive power compensation controllers, wherein the reactive power compensation controllers are arranged on the cabinet body, and the plurality of groups of reactive power compensation modules are respectively arranged in corresponding drawer boxes.
Compared with the prior art, the invention has the following beneficial effects:
1. The second exhaust fan draws the outside exhaust of regional air between second baffle and the back shroud, external cold air gets into the cabinet body from the inlet tank of below, thereby realize air circulation, the air circulation through regional air circulation between second baffle and the back shroud dispels the heat to cabinet body and second apron, thereby reduce the internal air temperature of cabinet, realize the supplementary cooling to the internal components and parts of cabinet, send into the drawer box with external cold air when intake fan rotates, discharge through first exhaust fan, external cold air can only get into in the drawer box through the inlet port, the violently pipe, and the cold air adsorbs the moisture in the air through the molecular sieve when removing in the violently pipe, avoid moist air to get into in the drawer box to influence the components and parts operation or lead to the components and parts to damage, realize the cooling to equipment under the prerequisite of guaranteeing the steady operation of equipment, improve the security that equipment used, and independent air circulation forms two sets of independent air circulation in the drawer box and the internal independent air circulation of cabinet, each other do not influence and further improve the effect of cooling.
2. Through setting up of extension board, baffle, gasbag isotructure makes two sets of violently manage respectively with inlet port and exhaust hole intercommunication when using, after the time of using the settlement, make two sets of violently manage with inlet port, exhaust hole's intercommunication state change, the air state that flows in two sets of violently managing changes this moment, dehumidify the operation through the molecular sieve, afterwards can change into and heat the molecular sieve after to using through the hot air and make moisture desorption discharge, realized the waste heat utilization of equipment exhaust hot air, need not to shut down and change or heat treatment molecular sieve alone, guaranteed the stability of intaking and exhausting, guarantee the radiating effect to the internal components and parts of cabinet.
3. After the baffle contacts with the limiting block on the support, the second cross rod is enabled to move in a reciprocating mode continuously, the grid plate far away from the baffle moves and extrudes the molecular sieve, then along with the reset of the synchronous belt 30, the grid plate resets, the molecular sieve is loose, the molecular sieve can move in the extruded and released process, gaps formed by the molecular sieve change, the positions and angles of the molecular sieve change, so that different molecular sieves can be fully contacted with air, the moisture absorption effect and the thermal desorption effect of the molecular sieve on the air are improved, the excessive contact with the air of the local molecular sieve is avoided, the subsequent use effect is influenced, and the radiating effect on components in the cabinet body is further guaranteed.
Drawings
Fig. 1 is a schematic view of the overall structure of the first view angle of the present invention.
Fig. 2 is a schematic view of the overall structure of the second view angle of the present invention.
Fig. 3 is a schematic structural view of the internal structure of the cabinet according to the present invention.
Fig. 4 is a schematic structural view of a first catheter according to the present invention.
Fig. 5 is a schematic structural view of a drawer box according to the present invention.
Fig. 6 is a schematic structural view of a transverse tube in the present invention.
FIG. 7 is a schematic view of a cooling hole according to the present invention.
FIG. 8 is a schematic view of the structure of the intake chamber of the present invention.
Fig. 9 is a schematic view of the structure of the inside of the transverse tube in the present invention.
Fig. 10 is a front view of a cross tube in accordance with the present invention.
Fig. 11 is an enlarged schematic view of the area A1 in fig. 10.
Fig. 12 is an enlarged schematic view of the area A2 in fig. 10.
In the drawing, 1, a cabinet body, 2, a first partition board, 3, a second partition board, 4, a rear cover board, 5, a busbar module, 6, a drawer box, 7, an air outlet, 8, a first guide pipe, 9, a first exhaust fan, 10, a groove, 11, an air inlet hole, 12, an air inlet fan, 13, an air outlet hole, 14, a transverse pipe, 15, a support board, 16, a bracket, 17, a baffle, 18, a first elastic piece, 19, a first cross bar, 20, a grid board, 21, an air bag, 22, a baffle ring, 23, a second cross bar, 24, a connecting groove, 25, a second elastic piece, 26, a first magnet ring, 27, a second magnet ring, 28, a rotating shaft, 29, a synchronous wheel, 30, a synchronous belt, 31, a connecting rod, 32, a rotating power piece, 33, a second guide pipe, 34, a third guide pipe, 35, an air inlet chamber, 36, 37, a reactive power compensation module, 38, a reactive compensation controller, 39, a second exhaust fan, 40 and an air inlet groove.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 1-12, the drawer type low-voltage reactive power compensation cabinet provided by the invention comprises a cabinet body 1, wherein one side of the cabinet body 1 is hinged with a rear cover plate 4, the upper end and the lower end of the rear cover plate 4 are provided with a plurality of groups of air inlet grooves 40 which are distributed at intervals, one end, far away from the air inlet grooves 40, of the rear cover plate 4 is fixedly provided with a plurality of groups of second exhaust fans 39, a second partition plate 3 is fixedly arranged in the cabinet body 1, a plurality of groups of first partition plates 2 are fixedly arranged on the second partition plate 3, a plurality of groups of drawer boxes 6 which are distributed with the first partition plate 2 at intervals are arranged in the cabinet body 1, through holes are formed in the side wall of each drawer box 6, air outlet holes 7 are formed in the side surface, close to the second partition plate 3, of each drawer box 6 is provided with a busbar module 5 which is matched with the drawer boxes 6;
the two sides of the cabinet body 1 are provided with grooves 10 at positions corresponding to the drawer boxes 6, two groups of transverse pipes 14 are fixedly arranged in the grooves 10, two groups of grid plates 20 are arranged in the transverse pipes 14, molecular sieves are filled between the two groups of grid plates 20, the transverse pipes 14 are communicated with the areas of the cabinet body 1 corresponding to the drawer boxes 6, the transverse pipes 14 are communicated with second guide pipes 33, the second guide pipes 33 are communicated with air inlet chambers 35 fixedly arranged in the grooves 10, the side walls of the air inlet chambers 35 are provided with a plurality of groups of cooling holes 36 which are distributed at intervals, two ends of the grooves 10 are respectively provided with air inlet holes 11 and air outlet holes 13 which are formed in the side walls of the cabinet body 1, the air inlet holes 11 are rotatably provided with air inlet fans 12 and are communicated with the two groups of transverse pipes 14, the end parts of the air inlet holes 11 are provided with dustproof nets, the air outlet holes 13 are communicated with the grooves 10, the air outlet holes 13 are communicated with air outlet holes 7 on the corresponding drawer boxes 6 through first guide pipes 8, and the first air outlet fans 9 are rotatably arranged in the first guide pipes 8.
In practical application, the drawer box 6 is installed in a set area surrounded by the first partition board 2 and the second partition board 3 through the guide rails, the drawer box 6 is connected with the busbar module 5 and electrified after the installation, the air outlet 7 is in butt joint with the first guide pipe 8, and then the drawer box can be used, when the drawer box is used, the air inlet fan 12, the first air outlet fan 9 and the second air outlet fan 39 are started, the second air outlet fan 39 draws air in the area between the second partition board 3 and the rear cover board 4 and discharges the air outwards, external cold air enters the cabinet body 1 from the air inlet groove 40 below, so that air circulation is realized, the cabinet body 1 and the second partition plate 3 are radiated through the air circulation in the area between the second partition plate 3 and the rear cover plate 4, the air temperature in the cabinet body 1 is reduced, the auxiliary cooling of components in the cabinet body 1 is realized, the area between the second partition plate 3 and the rear cover plate 4 is not communicated with the area where the drawer box 6 is positioned, and dust and moisture are prevented from entering the drawer box 6 to influence the operation of the components;
When the air inlet fan 12 rotates, external cold air is sucked into the air inlet hole 11, then the air can enter the transverse tube 14, the air in the transverse tube 14 moves to pass through the molecular sieve between the grid plates 20, then the air enters the air inlet chamber 35 through the second guide tube 33, cold air enters the region where the drawer box 6 is located through the cooling holes 36, the cold air enters the drawer box 6 through the through holes on the side wall of the drawer box 6 to cool components in the drawer box 6, hot air flows upwards, the hot air at the upper part in the drawer box 6 is pumped out under the action of the first air outlet fan 9, the hot air enters the air outlet hole 13 along the first guide tube 8 and is discharged out of the cabinet body 1, the circulating flow of the air in the drawer box 6 is realized, the external cold air can only enter the drawer box 6 through the air inlet hole 11 and the transverse tube 14, and moisture in the air is adsorbed through the molecular sieve when the cold air moves in the transverse tube 14, the moist air is prevented from entering the drawer box 6 to influence the operation of the components or damage the components, the components are prevented from being damaged, the cooling effect of the components is realized on the premise that the stable operation of the equipment is ensured, the use safety of the equipment is improved, the independent air and the independent air circulation effect of the two independent air circulation bodies are not influenced.
As shown in fig. 1-12, in the drawer-type low-voltage reactive power compensation cabinet provided by the invention, the two ends of the transverse pipe 14 are fixedly provided with the support plate 15, the middle part of the support plate 15 is provided with the through hole with a step, the support plate 15 is fixedly provided with the support 16, the support 16 is slidably provided with the baffle 17 for closing the through hole on the support plate 15, the surface of the baffle 17, far away from the support plate 15, is fixedly provided with the first elastic piece 18, and one end, far away from the baffle 17, of the first elastic piece 18 is fixedly connected with the support 16.
Specifically, be provided with second horizontal pole 23 in the violently pipe 14, second horizontal pole 23 both ends all slidable mounting have first horizontal pole 19, grid board 20 fixed mounting is kept away from the one end of second horizontal pole 23 at first horizontal pole 19, fixed mounting has the gasbag 21 that is located grid board 20 and keeps away from second horizontal pole 23 one side on first horizontal pole 19, gasbag 21 and the inner wall contact of violently pipe 14, the both ends of violently pipe 14 all fixed mounting have the baffle ring 22 that uses with gasbag 21 cooperation, baffle ring 22 is provided with the interval with the inner wall of violently pipe 14.
Specifically, the exhaust holes 13 are communicated with the two groups of transverse pipes 14, the transverse pipes 14 are communicated with a third conduit 34, the third conduit 34 is communicated with the outside, and the area in the transverse pipes 14 is partitioned by the air bags 21.
Specifically, the end of the first cross rod 19 is provided with a connecting groove 24 into which the second cross rod 23 extends, the end of the first cross rod 19, which is close to the second cross rod 23, is fixedly provided with second elastic pieces 25 distributed around the second cross rod 23, and one end of the second elastic piece 25, which is far away from the first cross rod 19, is fixedly connected with the middle part of the second cross rod 23.
Specifically, a first magnet ring 26 is fixedly installed on the second cross rod 23, the first magnet ring 26 is in sliding contact with the inner wall of the transverse tube 14, a second magnet ring 27 is slidably installed on the outer side surface of the transverse tube 14, the second magnet ring 27 adsorbs the first magnet ring 26, and a synchronous belt 30 driving the second magnet rings 27 on the two groups of transverse tubes 14 to synchronously and reversely move is arranged in the groove 10.
Specifically, two sets of rotating shafts 28 are rotatably installed in the groove 10, the rotating shafts 28 penetrate through all the grooves 10, a synchronous wheel 29 positioned in the groove 10 is fixedly installed on the rotating shafts 28, a synchronous belt 30 is rotatably installed on the synchronous wheel 29, a connecting rod 31 is fixedly connected to the second magnet ring 27, the connecting rod 31 is fixedly connected with the synchronous belt 30, and a rotating power piece 32 for driving one set of rotating shafts 28 to rotate is fixedly installed in the groove 10 at the lowest side.
In practical application, one group of rotating shafts 28 is driven to rotate by the rotating power piece 32, the rotating shafts 28 drive the synchronous belt 30 to rotate by the synchronous wheels 29, the synchronous belt 30 drives the second magnet rings 27 to move by the connecting rods 31, the moving directions of the two groups of second magnet rings 27 are opposite, the second magnet rings 27 drive the second cross bars 23 to move by the first magnet rings 26, so that molecular sieves in the two groups of transverse tubes 14 are positioned at different ends, the second cross bars 23 move towards one end of the transverse tube 14, when the end of the first cross bar 19 contacts with the baffle 17, the air bags 21 contact with the baffle 22, then the first cross bar 19 continuously moves to push the baffle 17 to move and compress the first elastic piece 18 until the baffle 17 contacts with a limiting block on the support 16, and meanwhile, the air bags 21 are prevented from being in contact with the inner wall of the transverse tube 14 due to oblique deformation caused by the blocking of the baffle 22, and the other groups of air bags 21 keep in the original state;
At this time, the second duct 33 and the third duct 34 are located between the air bag 21 and the grid plate 20, the air in the subsequent air inlet hole 11 or the air outlet hole 13 can pass through the support plate 15 and pass through the molecular sieve, then leave the transverse tube 14 through the second duct 33 or the third duct 34, and the molecular sieve can be used after the position adjustment is completed, at this time, the cold air entering the air inlet hole 11 enters a group of transverse tubes 14 communicated with the air inlet hole, the cold air passes through the support plate 15 and passes through the molecular sieve, then leaves the transverse tube 14 from the second duct 33 and enters the region where the drawer box 6 is located, and the hot air in the air outlet hole 13 enters a group of transverse tubes 14 communicated with the air inlet hole, and the hot air passes through the support plate 15 and passes through the molecular sieve and then leaves the transverse tube 14 from the third duct 34, so that a complete air inlet circulation is realized;
After the set time is used, the rotating shaft 28 reversely rotates, at the moment, the first cross rod 19 does not push the baffle 17 any more, the baffle 17 is reset under the action of the first elastic piece 18, air is prevented from entering the transverse pipes 14, finally, the communication states of the two groups of transverse pipes 14, the air inlet holes 11 and the air outlet holes 13 are changed, at the moment, the states of air flowing in the two groups of transverse pipes 14 are changed, cold air is dehumidified through the molecular sieves, the used molecular sieves are heated through hot air to enable moisture to be desorbed and discharged, waste heat utilization of hot air discharged by equipment is realized, the molecular sieves do not need to be stopped for replacement or be independently heated, the stability of air inlet and exhaust is ensured, and the heat dissipation effect on components in the cabinet body 1 is ensured;
After the baffle 17 contacts with the limiting block on the support 16, the synchronous belt 30 continues to rotate for a set distance, then returns to the initial position of the baffle 17 contacting with the limiting block on the support 16, and moves reciprocally, so that the second cross rod 23 continues to move for a set length, at this time, the second cross rod 23 can drive the first cross rod 19 which is not contacted with the baffle 17 to move and compress the second elastic piece 25 at the front side of the moving direction, the first cross rod 19 drives the grating plate 20 far away from the baffle 17 to move and squeeze the molecular sieve, then along with the reset of the synchronous belt 30, the grating plate 20 resets, the molecular sieve is loose, the molecular sieve can move in the process of being released by the squeeze, the gap formed by the molecular sieve changes, and the position and the angle of the molecular sieve change, so that different molecular sieves can fully contact with air, the moisture absorption effect and the thermal desorption effect of the molecular sieve on the air are improved, the excessive contact with the air is avoided, the subsequent use effect is influenced, and the heat dissipation effect on components in the cabinet body 1 is further ensured.
In one example of the present invention, the rotary power member 32 is a motor, or may be any other member capable of outputting rotary power, such as a hydraulic motor, and the rotary shaft 28 is driven to rotate by the motor, so that the molecular sieve moves in the transverse tube 14, and the first elastic member 18 and the second elastic member 25 are respectively a first spring and a second spring, or may be any other elastic member, such as a spring ball, and the first spring applies a restoring thrust to the baffle 17, and the second spring maintains the positions of the first cross bar 19 and the second cross bar 23.
As shown in fig. 1 to 12, the low-voltage reactive power compensation device provided by the invention comprises the drawer-type low-voltage reactive power compensation cabinet, a plurality of groups of reactive power compensation modules 37 and reactive power compensation controllers 38, wherein the reactive power compensation controllers 38 are arranged on the cabinet body 1, and the plurality of groups of reactive power compensation modules 37 are respectively arranged in the corresponding drawer boxes 6.
In practical application, the different reactive power compensation modules 37 are correspondingly installed in the drawer box 6, and then the drawer box 6 is installed on the cabinet 1, and then each group of reactive power compensation modules 37 is controlled to operate by the reactive power compensation controller 38.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.