CN117663441A

CN117663441A - Exhaust heat recovery and fresh air precooling reheat heat recovery system of central air conditioner

Info

Publication number: CN117663441A
Application number: CN202311708193.1A
Authority: CN
Inventors: 杜国栋
Original assignee: Jiangsu Taiente Environmental Technology Co ltd
Current assignee: Jiangsu Taiente Environmental Technology Co ltd
Priority date: 2023-12-13
Filing date: 2023-12-13
Publication date: 2024-03-08

Abstract

The invention relates to the technical field of central air conditioners, and particularly discloses an exhaust heat recovery and fresh air precooling reheat heat recovery system of a central air conditioner, which comprises a shell, wherein an exhaust channel is formed in the inner top of the shell, a fresh air channel is formed in the inner lower end of the shell, and partition plates are fixedly arranged on two sides of the shell; the first motor is started to drive the transmission gear to drive the rack to slide, at the moment, the baffle plate can be driven to move through the sliding strip, the baffle plate can be driven to move outwards in an auxiliary mode through the reciprocating motion of the sliding plate, at the moment, the two ends of the shell can be opened to move out each device, the sealing door can be opened to draw the sliding plate to overhaul the first heat exchanger and the second heat exchanger, the whole equipment is convenient to overhaul the inside of the shell, the whole use overhaul convenience of the equipment is improved, overhaul maintenance and ash removal work are facilitated for the inside of the shell, the follow-up maintenance time is saved, and the human consumption is reduced.

Description

Exhaust heat recovery and fresh air precooling reheat heat recovery system of central air conditioner

Technical Field

The invention relates to the technical field of central air conditioners, in particular to an exhaust heat recovery and fresh air precooling reheat heat recovery system of a central air conditioner.

Background

The exhaust heat recovery and fresh air precooling reheat heat recovery system of the central air conditioner is an energy-saving and environment-friendly technology, can utilize waste heat and fresh air in the air conditioning system to carry out energy recovery and reuse, and can realize efficient energy utilization by comprehensively utilizing the exhaust heat recovery and the fresh air precooling reheat heat recovery system, thereby reducing energy waste, reducing environmental pollution and improving the performance and efficiency of the air conditioning system.

The Chinese patent with publication number of CN113137671A discloses an air conditioning system with a heat recovery function, which aims to solve the problem that when an outdoor unit in the existing air conditioning system fails or frosts, the fresh air temperature does not meet the indoor temperature requirement. The air conditioning system comprises a first heat exchanger, a second heat exchanger and a surface cooler, wherein the first heat exchanger and the surface cooler are arranged in a fresh air channel, and the second heat exchanger is arranged in an exhaust channel; the refrigerant flows between the first heat exchanger and the second heat exchanger under the action of the circulating pump. The surface cooler is communicated with a heat source or a cold source and is used for pre-cooling or preheating fresh air. The air conditioning system provided by the invention can recycle heat or cold in indoor exhaust air by utilizing the first heat exchanger and the second heat exchanger, and the matched surface cooler can dehumidify and heat fresh air without arranging an outdoor unit, so that the problem that the temperature of the fresh air does not meet the indoor temperature requirement due to the failure and frosting of the outdoor unit can be avoided.

During the use of the device, although the heat or cold in indoor exhaust air can be recycled by utilizing the first heat exchanger and the second heat exchange, in the specific use process, the whole structure of the device is arranged in a cavity in the shell, the whole ash removal and maintenance are more complicated and inconvenient, the filtering device at the fresh air inlet and the air return inlet lacks a corresponding anti-blocking protection structure in the use process, and a large amount of dust is adhered to the inlet of the filtering device during the specific use process, so that the filtering device is blocked, the ventilation performance of the whole air conditioner is influenced, and the prior device is improved.

Therefore, we propose an exhaust heat recovery and fresh air precooling reheat heat recovery system of a central air conditioner to solve the above problems.

Disclosure of Invention

The invention aims to provide an exhaust heat recovery and fresh air precooling reheat heat recovery system of a central air conditioner, so as to solve the problem that the prior air conditioner system is cumbersome and inconvenient to overhaul, disassemble, maintain and clean in the whole.

In order to achieve the above object, the invention provides an exhaust heat recovery and fresh air precooling reheat heat recovery system of a central air conditioner, which comprises a shell, wherein an exhaust channel is arranged at the inner top of the shell, a fresh air channel is arranged at the inner lower end of the shell, partition boards are fixedly arranged at the two sides of the shell, an air return opening and a fresh air opening are respectively arranged at the upper end and the lower end of the partition board at one side of the shell, an air outlet and a fresh air outlet are respectively arranged at the upper end and the lower end of the partition board at the other side of the shell, a transfer mechanism is fixedly arranged at the back of the shell, the inner ends of the transfer mechanism are in sliding connection with the middle in the shell, filter devices are respectively arranged at the inner sides of the filter devices and the transfer mechanism, a heat exchange mechanism is arranged in the middle in the shell, the air treatment device comprises a precooling heat exchanger, a reheating heat exchanger, an auxiliary heater and an isothermal heater, the air treatment device is specifically an internal structure of an air conditioning system with a heat recovery function and with a publication number of CN113137671A, the internal structure is not repeated here, a transfer mechanism is arranged, a switch shell can be assisted by the transfer mechanism to be adjusted, the whole overhaul and maintenance convenience of the equipment can be improved, and a heat exchange mechanism is arranged, the first heat exchanger and the second heat exchanger can be overhauled through the sealing door switch, and the precooling heat exchanger, the reheating heat exchanger, the auxiliary heater, the isothermal heater and the first heat exchanger and the second heat exchanger are matched, so that the functions of air-conditioning exhaust heat recovery and fresh air precooling reheating heat recovery can be achieved, and the energy consumption of a central air-conditioning system is greatly saved.

Further, transfer mechanism includes back support, sliding tray and rack, back support fixed mounting is in the back lower extreme middle part of casing, back upper end fixed mounting of back support has first motor, the output of first motor runs through back support fixed mounting and has drive gear, rack fixed mounting is in the rear end of baffle, and two sets of the rack all subtend sets up, the inboard and the drive gear meshing of rack are connected, the sliding tray is seted up in the middle in the casing, the inboard sliding connection of sliding tray has two sets of skateboards, the inboard fixed connection of the inboard of outer end and baffle of skateboard, the inboard of filter equipment, fan, air treatment device and the outside fixed connection of skateboard set up transfer mechanism for this equipment is during the use, and the accessible starts first motor and drives drive gear rotation, utilizes drive gear drive rack to slide, and through the outside of rack reciprocating sliding alright drive baffle outside activity, and the inside roll-off of filter equipment, fan, air treatment device follow the inside of casing of the inside of the auxiliary drive of skateboard is convenient for overhauling the inside of casing.

Further, both ends are equal fixed mounting has the reinforcement rail frame about the back of casing, consolidate rail frame and rack each other sliding connection, set up the reinforcement rail frame, can consolidate the rack through reinforcement rail frame auxiliary stay during the use, can improve rack gliding stability.

Further, the heat exchange mechanism comprises an empty groove, the empty groove is formed in the middle of the inner side of the shell, sliding grooves are formed in the top and the bottom of the inner side of the empty groove, a sliding plate is connected to the inner side of the sliding groove in a sliding mode, an installation frame is fixedly installed on the inner side of the sliding plate, a first heat exchanger and a second heat exchanger are fixedly installed on the top and the bottom of the inner side of the installation frame respectively, the first heat exchanger and the second heat exchanger are communicated, a sealing door is hinged to the front side of the shell, the sealing door is connected with the front side of the shell through bolts, the heat exchange mechanism is arranged, the sealing door can be used for carrying out heat exchange in an auxiliary mode through the first air exchanger and the second heat exchanger, the sealing door can be used for freely opening and closing the empty groove, and the sliding plate can be pulled to slide out from the inner side of the sliding groove after the empty groove is opened, and overhauling and maintenance are convenient to carry out on the first heat exchanger and the second heat exchanger.

Further, the bottom fixed mounting of casing has the base plate, the mounting hole has all been seted up to four corners of base plate, sets up the mounting hole on the base plate, and accessible mounting hole cooperation bolt is supplementary to be fixed this equipment, makes things convenient for this equipment to use.

Further, prevent stifled mechanism includes the convex groove, the convex groove sets up bottom in the passageway that induced drafts and the one end that is close to filter equipment in the passageway of airing exhaust in the bottom, the inboard sliding connection in convex groove has the board that slides, the top fixed mounting of board that slides has accomodates the framework, the outer fixed mounting of board that slides has the closing plate, accomodate the top rear side fixed mounting of framework has the clearance subassembly, sets up protection machanism for this equipment is in the use period, and the outside of the supplementary laminating filter equipment of accessible accomodate the framework utilizes the clearance subassembly operation alright scrape the clearance of rubbing to filter equipment's outside this moment, can avoid the dust to adhere to the condition that blocks the filter equipment outside, makes this equipment wholly have stronger dustproof performance.

Further, the cross section shape of sliding tray sets up to the cross, the cross section shape of slide also sets up to the cross, the equal fixedly connected with wear pad of the outer package face of slide and the inner wall of sliding tray sets up the whole cross section shape of cross sliding tray and slide, can improve the sliding stability of slide in the sliding tray inboard.

Further, the clearance subassembly includes indulges the rail, indulge rail fixed mounting in the top rear side of accomodating the framework, the bottom fixed mounting who indulges the rail has the second motor, the inboard rotation of indulging the rail is connected with the lead screw, the bottom of lead screw and the output fixed connection of second motor, the surface threaded connection of lead screw has sliding connection in the movable block of indulging the rail inboard, one side fixed mounting who indulges the rail is kept away from to the movable block has the scraper blade, sets up the clearance subassembly for this equipment is in the use period, and accessible starts second motor drive lead screw drive movable block sliding displacement from top to bottom, drives the scraper blade activity through the movable block, and then alright utilize the scraper blade to carry out the clearance of scraping to filter equipment's outside, can avoid the dust to cover to block up filter equipment's condition, improved this equipment holistic use dustproof ability, self-cleaning can keep central air conditioner holistic ventilation rate for a long time.

Further, the upper end threaded connection of closing plate has the fixing screw, the spacing hole has all been seted up to the front of casing in the corresponding position of fixing screw, the rear end threaded connection of fixing screw sets up fixing screw and spacing hole cooperation in the inboard in spacing hole, can be in the use through twisting the fixing screw plug-in to the inboard in spacing hole, and then be convenient for carry out firm installation to the closing plate, can improve this device overall installation stability, the accessible is not hard up fixing screw when need overhauling simultaneously, can assist to dismantle the storage frame, is convenient for carry out the deashing and overhauls.

Further, the scraper blade is 30 degrees angle slope settings, the outside of scraper blade is connected with one side laminating that filter equipment is close to the fresh air inlet, sets up the scraper blade and sets up for the slope, and the agreeing filter equipment that can be better cuts and rubs, can improve the cleaning performance.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the first motor is started to drive the transmission gear to drive the rack to slide, at the moment, the baffle plate can be driven to move through the sliding strip, the baffle plate can be driven to move outwards in an auxiliary mode through the reciprocating motion of the sliding plate, at the moment, the two ends of the shell can be opened to move out each device, and the first heat exchanger and the second heat exchanger can be overhauled by opening the sliding plate of the sealing door, so that the whole equipment is convenient to overhaul the inside of the shell, the whole use overhaul convenience of the equipment is improved, overhaul maintenance and ash removal work of the equipment on the inside of the shell are facilitated, the subsequent maintenance time is saved, and the human consumption is reduced.

In the invention, the second motor is used for driving the movable block to drive the scraping plate to move up and down to assist in scraping and cleaning the outer side filter screen of the filter device, so that the device can automatically clean and scrape the outermost side of the filter device, the problem that dust impurities are attached to the outermost side of the filter device to cause the reduction of the overall blocking ventilation efficiency of the filter device can be avoided, the overall dustproof capacity of the device can be improved, scraped dust can fall into the collecting screen frame to be collected, and when cleaning and maintenance are needed, the collecting screen frame is only required to be opened, so that the device can automatically clean the outermost side of the filter device at regular time during use, the problem that the outermost end of the filter device is blocked by dust can be avoided, and the overall ventilation performance of the air conditioning system can be improved.

Drawings

FIG. 1 is a schematic elevational view of the present invention;

FIG. 2 is a schematic diagram of a rear view structure of the present invention;

FIG. 3 is a schematic view of a rear view of the invention in an expanded state;

FIG. 4 is a schematic view of a front view of the invention in an expanded state;

FIG. 5 is a schematic view showing a bottom view of the invention in an unfolded state;

FIG. 6 is a schematic view of the internal structure of the housing according to the present invention;

FIG. 7 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;

FIG. 8 is a schematic diagram of an anti-blocking mechanism according to the present invention.

In the figure: 1. a housing; 2. an exhaust passage; 3. a fresh air channel; 4. a partition plate; 5. an air return port; 6. a new wind gap; 7. an air outlet; 8. a fresh air outlet; 9. a transfer mechanism; 91. a rear bracket; 92. a sliding groove; 93. a rack; 94. a first motor; 95. a transmission gear; 96. a slide plate; 97. reinforcing the rail frame; 10. a filtering device; 11. a heat exchange mechanism; 111. a hollow groove; 112. a chute; 113. a sliding plate; 114. a mounting frame; 115. a first heat exchanger; 116. a second heat exchanger; 117. sealing the door; 12. an air treatment device; 13. a blower; 14. an anti-blocking mechanism; 141. a convex groove; 142. a slip plate; 143. a housing frame; 144. a sealing plate; 145. cleaning the assembly; 1451. a longitudinal rail; 1452. a second motor; 1453. a screw rod; 1454. a moving block; 1455. a scraper; 146. a fixed screw; 147. a limiting hole; 15. a substrate; 16. and (5) mounting holes.

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. 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.

Referring to fig. 1-8, in the embodiment of the invention, an exhaust heat recovery and fresh air precooling reheat heat recovery system of a central air conditioner comprises a shell 1, wherein an exhaust channel 2 is arranged at the inner top of the shell 1, a fresh air channel 3 is arranged at the inner lower end of the shell 1, two sides of the shell 1 are fixedly provided with a baffle plate 4, an air return opening 5 and a fresh air opening 6 are respectively arranged at the upper end and the lower end of the baffle plate 4 at one side of the shell 1, an air outlet 7 and a fresh air outlet 8 are respectively arranged at the upper end and the lower end of the baffle plate 4 at the other side of the shell 1, a transfer mechanism 9 is fixedly arranged at the back of the shell 1, the inner ends of the transfer mechanism 9 are slidably connected in the middle of the shell 1, a filtering device 10 is respectively arranged at one ends, close to the air return opening 5 and the fresh air opening 6, the inner side of the filtering device 10 is fixedly connected with the transfer mechanism 9, a heat exchange mechanism 11 is arranged in the middle of the inner part of the shell 1, the air treatment device 12 and the fan 13 are respectively arranged at one end of the exhaust channel 2 and the fresh air channel 3, which is close to the exhaust outlet 7 and the fresh air outlet 8, the fan 13 is fixedly arranged at one side of the filter device 10 in the fresh air channel 3, which is close to the air treatment device 12, the anti-blocking mechanism 14 is arranged at one end of the exhaust channel 2 and the fresh air channel 3, which is close to the return air inlet 5 and the fresh air outlet 6, the filter device 10 consists of a first coarse-effect filter, a first medium-effect filter and a high-efficiency filter, the air treatment device 12 consists of a precooling heat exchanger, a reheating heat exchanger, an auxiliary heater and an isothermal heater, the air treatment device 12 is specifically an internal structure of an air conditioning system with a heat recovery function, which is disclosed as a number of CN 113137671A', belongs to the technical means, therefore, the adjusting mechanism 9 is not repeated herein, the switch shell 1 can be assisted by the adjusting mechanism 9, the convenience of the whole overhaul and maintenance of the equipment can be improved, the heat exchange mechanism 11 is arranged, the first heat exchanger 115 and the second heat exchanger 116 can be overhauled through the switch of the sealing door 117, and the precooling heat exchanger, the reheating heat exchanger, the auxiliary heater, the isothermal heater and the first heat exchanger 115 and the second heat exchanger 116 are matched, so that the functions of air conditioning exhaust heat recovery and fresh air precooling reheating heat recovery can be achieved, and the energy consumption of a central air conditioning system is greatly saved.

Referring to fig. 2-7, the transfer mechanism 9 includes a rear bracket 91, a sliding groove 92 and a rack 93, the rear bracket 91 is fixedly mounted in the middle of the lower end of the back of the housing 1, a first motor 94 is fixedly mounted at the upper end of the back of the rear bracket 91, a transmission gear 95 is fixedly mounted at the output end of the first motor 94 penetrating through the rear bracket 91, the rack 93 is fixedly mounted at the rear end of the partition board 4, the two groups of racks 93 are oppositely arranged, the inner sides of the racks 93 are engaged with the transmission gear 95, the sliding groove 92 is formed in the middle of the housing 1, the inner sides of the sliding groove 92 are slidably connected with two groups of sliding plates 96, the outer ends of the sliding plates 96 are fixedly connected with the inner sides of the partition board 4, the filter device 10, the fan 13, the inner sides of the air treatment device 12 and the outer sides of the sliding plates 96 are fixedly connected, during use of the device, the first motor 94 can be adopted to drive the transmission gear 95 to slide, and the two groups of sliding plates 96 can be synchronously driven to move by the transmission gear 95, the two groups of sliding plates 93 can be reciprocally driven to move by the sliding of the partition board 4, the inner sides of the partition board 4 can be reciprocally moved outwards by the sliding plates 4, the filter device can be conveniently moved out of the filter device 12, and the filter device can be conveniently detached and detached from the housing 12 can be conveniently and detached.

Referring to fig. 2-7, the upper and lower ends of the back of the casing 1 are fixedly provided with reinforcing rails 97, the reinforcing rails 97 and the racks 93 are slidably connected with each other, and the reinforcing rails 97 on the casing 1 are adopted to cover the racks 93 through the reinforcing rails 97, so that the overall stability of the racks 93 can be improved.

Referring to fig. 1, fig. 4-fig. 7, the hollow groove 111 is formed in the middle of the inner side of the casing 1, the top and the bottom in the hollow groove 111 are both provided with the sliding groove 112, the inner side of the sliding groove 112 is slidably connected with the sliding plate 113, the inner side of the sliding plate 113 is fixedly provided with the mounting frame 114, the top and the bottom in the inner side of the mounting frame 114 are respectively fixedly provided with the first heat exchanger 115 and the second heat exchanger 116, the first heat exchanger 115 and the second heat exchanger 116 are communicated, the front surface of the casing 1 is hinged with the sealing door 117, the sealing door 117 is connected with the front surface of the casing 1 through bolts, and the first heat exchanger and the second heat exchanger 116 can perform heat exchange in an operation auxiliary manner.

Referring to fig. 1-5, a base plate 15 is fixedly installed at the bottom of the housing 1, mounting holes 16 are formed in four corners of the base plate 15, and the mounting holes 16 on the base plate 15 are provided, so that the device can be assisted by matching bolts with the mounting holes 16 during use, and the installation convenience of the whole housing 1 of the device can be improved.

Referring to fig. 3-6, the cross-sectional shape of the sliding groove 92 is set to be cross-shaped, the cross-sectional shape of the sliding plate 96 is also set to be cross-shaped, the outer wrapping surface of the sliding plate 96 and the inner wall of the sliding groove 92 are fixedly connected with wear-resistant gaskets, and the cross-shaped sliding groove 92 and the sliding plate 96 are set to have an overall cross-sectional shape, so that the sliding plate 96 and the sliding groove 92 are integrally matched and stable, the sliding stability of the sliding plate 96 inside the sliding groove 92 can be improved, and the overall stability of the device can be improved.

Referring to fig. 3-6 and 8, the anti-blocking mechanism 14 includes a convex groove 141, the convex groove 141 is formed at the bottom in the air suction channel and at one end of the bottom in the air exhaust channel 2, which is close to the filter device 10, the inner side of the convex groove 141 is slidably connected with a sliding plate 142, the top of the sliding plate 142 is fixedly provided with a storage frame body 143, the outer end of the sliding plate 142 is fixedly provided with a sealing plate 144, the rear side of the top of the storage frame body 143 is fixedly provided with a cleaning component 145, during use, the outer side of the filter device 10 can be attached with the storage frame body 143 in an auxiliary manner, and then the cleaning component 145 can be utilized to clean the outer side of the filter device 10 by scraping, cleaned dust and falling into the storage frame body 143 can avoid the condition that the dust adheres to and blocks the outermost side of the filter device 10, and the overall ventilation efficiency of the central air conditioner can be improved.

Referring to fig. 3-6 and 8, the cleaning component 145 includes a vertical rail 1451, the vertical rail 1451 is fixedly mounted at the rear side of the top of the accommodating frame 143, a second motor 1452 is fixedly mounted at the bottom of the vertical rail 1451, a screw rod 1453 is rotatably connected at the inner side of the vertical rail 1451, the bottom of the screw rod 1453 is fixedly connected with the output end of the second motor 1452, a moving block 1454 is slidably connected at the inner side of the vertical rail 1451 in threaded connection with the outer surface of the screw rod 1453, a scraper 1455 is fixedly mounted at one side of the moving block 1454 far away from the vertical rail 1451, the second motor 1452 is started to drive the screw rod 1453 to drive the moving block 1454 to slide up and down, the scraper 1455 is driven to move up and down by the moving block 1454, the outer side of the filtering device 10 can be scraped and cleaned by the scraper 1455, dust can be cleaned, the condition that the filtering device 10 is blocked by dust can be avoided, the self-cleaning can keep the overall ventilation rate of the central air conditioner for a long time, and the overall performance of the central air conditioner is improved.

Referring to fig. 3-6 and 8, the scraper 1455 is inclined at an angle of 30 degrees, the outer side of the scraper 1455 is attached to one side of the filtering device 10, which is close to the fresh air port 6, and the inclined scraper 1455 can improve the fit effect between the scraper 1455 and the outer side of the filtering device 10, improve the dust scraping and rubbing capability, improve the dust prevention effect, and facilitate the use of the device.

Referring to fig. 4-5, the upper end of the sealing plate 144 is screwed with a fixing screw 146, the front of the housing 1 is located at a corresponding position of the fixing screw 146 and is provided with a limiting hole 147, the rear end of the fixing screw 146 is screwed on the inner side of the limiting hole 147, the fixing screw 146 is matched with the limiting hole 147, the fixing screw 146 is screwed on the inner side of the limiting hole 147, so that the sealing plate 144 is stably mounted, the overall mounting stability of the device can be improved, when the housing frame 143 needs to be cleaned, the fixing screw 146 can be twisted to leave the limiting hole 147, and the housing frame 143 can be disassembled in an auxiliary manner, so that the device is convenient to overhaul and use.

The working principle of the invention is as follows: in the use process of the equipment, if the inside of the shell 1 is required to be overhauled, the first motor 94 can be started to operate, the first motor 94 is utilized to drive the transmission gear 95 to rotate, the transmission gear 95 can be used for assisting in driving the racks 93 which are in meshed connection with the transmission gear 95 to slide on the inner side of the reinforcing rail frame 97, the racks 93 can be driven to push the sliding plate 96 to slide on the inner side of the sliding groove 92 through the sliding of the racks 93, and as the racks 93 and the transmission gear 95 are meshed and driven in opposite directions, the two groups of racks 93 positioned at the top and the bottom before rotation are mutually reversely moved, the sliding plate 96 can be further promoted to slide reciprocally, the baffle plate 4 can be assisted to be driven to move outwards through the reciprocating movement of the sliding plate 96, at the moment, the two ends of the shell 1 can be opened, the air treatment device 12, the filtering device 10 and the fan 13 can be conveniently moved out of the inner side of the shell 1, the whole equipment is convenient for overhauling the inside the shell 1, the whole use and maintenance convenience of the equipment is improved, the equipment is convenient for maintenance and repair of all devices in the shell 1, by arranging the heat exchange mechanism 11, when the equipment is required to be used for maintenance and repair of the first heat exchanger 115 and the second heat exchanger 116, the sealing door 117 can be opened so as to assist in opening the empty slot 111 on the front surface of the shell 1, at the moment, the installation frame 114 is only required to be pulled to drive the sliding plate 142 to slide out from the inner side of the sliding slot 112, the first heat exchanger 115 and the second heat exchanger 116 on the inner side of the installation frame 114 can be pulled out, the maintenance and repair of the first heat exchanger 115 and the second heat exchanger 116 are convenient, the maintenance and repair convenience of the whole equipment can be further improved by arranging the anti-blocking mechanism 14 in the use process of the equipment, the accessible inserts the inboard of convex groove 141 with sliding plate 142, enter into the inboard of spacing hole 147 through twisting fixing screw 146 this moment, utilize fixing screw 146 to assist fixed seal plate 144, and then alright install the inboard of convex groove 141 with sliding plate 142, after the inboard sliding plate 142 of convex groove 141 installs, alright receive filter equipment 10's outside through accomodating framework 143 this moment, in the use, accessible start second motor 1452 drive lead screw 1453 drive movable block 1454 in the inboard slip of indulging rail 1451, utilize movable block 1454 to drive scraper blade 1455 and reciprocate, alright assist to carry out the clearance of cutting to filter equipment 10's outside filter screen department, make this equipment can be automatic to clear up the outside of filter equipment 10 and cut the problem of rubbing down, can avoid dust impurity to adhere to filter equipment 10's the outside and lead to filter equipment 10 whole to block up ventilation efficiency reduction, can improve this equipment whole dustproof ability, by the dust of cutting the piece and can drop to the inside of collecting the frame, and then make this equipment can have stronger anti-blocking property, need move the clearance to move the fixed plate 1455 about at the outside of filter equipment 146 when need to leave the fixed hole of filter equipment 142, make this equipment convenient for the maintenance to detach the whole to take out of the equipment.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

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.

Claims

1. The utility model provides a central air conditioning's heat recovery of airing exhaust and new trend precooling reheat heat recovery system, its characterized in that, including casing (1), exhaust passage (2) have been seted up at the top in casing (1), fresh air passage (3) have been seted up to the lower extreme in casing (1), both sides of casing (1) all fixed mounting have baffle (4), return air inlet (5) and new trend mouth (6) have been seted up respectively to the upper and lower both ends of baffle (4) on one side of casing (1), air outlet (7) and new trend export (8) have been seted up respectively at the upper and lower both ends of baffle (4) on the other side of casing (1), the back fixed mounting of casing (1) has transfer mechanism (9), the inner sliding connection of transfer mechanism (9) is in the centre in casing (1), the one end that is close to return air inlet (5) and new trend mouth (6) in exhaust passage (2) all is equipped with filter equipment (10), the inboard of filter equipment (10) and transfer mechanism (9) fixed connection, the inside of casing (1) is equipped with heat transfer mechanism (11) and is equipped with in the middle of heat transfer mechanism (1) and is equipped with in the one end (3) and is close to air outlet (12) of air outlet (13), a fan (13) is fixedly installed on one side, close to an air treatment device (12), of a filtering device (10) in the fresh air channel (3), and anti-blocking mechanisms (14) are arranged at one ends, close to an air return opening (5) and a fresh air opening (6), of the air exhaust channel (2) and the fresh air channel (3).

2. The system for recovering exhaust heat and pre-cooling and reheating fresh air of a central air conditioner according to claim 1, wherein the transferring mechanism (9) comprises a rear bracket (91), a sliding groove (92) and a rack (93), the rear bracket (91) is fixedly installed in the middle of the lower end of the back of the housing (1), a first motor (94) is fixedly installed at the upper end of the back of the rear bracket (91), a transmission gear (95) is fixedly installed at the output end of the first motor (94) penetrating through the rear bracket (91), the rack (93) is fixedly installed at the rear end of the partition board (4), two groups of racks (93) are oppositely arranged, the inner side of the rack (93) is in meshed connection with the transmission gear (95), the sliding groove (92) is formed in the middle of the housing (1), two groups of sliding boards (96) are fixedly connected on the inner side of the sliding groove (92), and the outer end of the sliding boards (96) is fixedly connected with the inner side of the partition board (4), and the filtering device (10), the fan (13), the inner side of the air processing device (12) is fixedly connected with the outer side of the sliding boards (96).

3. The system for recovering exhaust heat and pre-cooling and reheating heat of fresh air of a central air conditioner according to claim 1, wherein a reinforcing rail frame (97) is fixedly installed at the upper end and the lower end of the back of the shell (1), and the reinforcing rail frame (97) and the rack (93) are in sliding connection with each other.

4. The system for recovering exhaust heat and pre-cooling and reheating fresh air of a central air conditioner according to claim 1, wherein the heat exchanging mechanism (11) comprises an empty groove (111), the empty groove (111) is formed in the middle of the inner side of the shell (1), sliding grooves (112) are formed in the inner top and the bottom of the empty groove (111), sliding plates (113) are slidably connected to the inner sides of the sliding grooves (112), mounting frames (114) are fixedly mounted on the inner sides of the sliding plates (113), a first heat exchanger (115) and a second heat exchanger (116) are fixedly mounted on the inner top and the bottom of the mounting frames (114) respectively, the first heat exchanger (115) is communicated with the second heat exchanger (116), a sealing door (117) is hinged to the front side of the shell (1), and the sealing door (117) is connected with the front side of the shell (1) through bolts.

5. The system for recovering exhaust heat and pre-cooling and reheating heat of a central air conditioner according to claim 1, wherein a base plate (15) is fixedly arranged at the bottom of the shell (1), and mounting holes (16) are formed in four corners of the base plate (15).

6. The system for recovering exhaust heat and pre-cooling and reheating heat of a central air conditioner according to claim 2, wherein the cross-section of the sliding groove (92) is cross-shaped, the cross-section of the sliding plate (96) is also cross-shaped, and the outer wrapping surface of the sliding plate (96) and the inner wall of the sliding groove (92) are fixedly connected with wear-resistant gaskets.

7. The system for recovering exhaust heat and pre-cooling and reheating heat of a central air conditioner according to claim 1, wherein the anti-blocking mechanism (14) comprises a convex groove (141), the convex groove (141) is formed in the bottom of the air suction channel and one end, close to the filtering device (10), of the bottom of the air suction channel and the inner side of the air discharge channel (2), a sliding plate (142) is slidably connected to the inner side of the convex groove (141), a containing frame body (143) is fixedly mounted on the top of the sliding plate (142), a sealing plate (144) is fixedly mounted on the outer end of the sliding plate (142), and a cleaning assembly (145) is fixedly mounted on the rear side of the top of the containing frame body (143).

8. The system for recovering exhaust heat and pre-cooling and re-heating heat of a central air conditioner according to claim 7, wherein the cleaning assembly (145) comprises a longitudinal rail (1451), the longitudinal rail (1451) is fixedly installed at the rear side of the top of the storage frame body (143), a second motor (1452) is fixedly installed at the bottom of the longitudinal rail (1451), a screw rod (1453) is rotatably connected to the inner side of the longitudinal rail (1451), the bottom of the screw rod (1453) is fixedly connected with the output end of the second motor (1452), a moving block (1454) which is slidably connected to the inner side of the longitudinal rail (1451) is in threaded connection with the outer surface of the screw rod (1453), and a scraper (1455) is fixedly installed at one side, far away from the longitudinal rail (1451), of the moving block (1454).

9. The system for recovering exhaust heat and pre-cooling and reheating heat of a central air conditioner according to claim 8, wherein the scraping plate (1455) is obliquely arranged at an angle of 30 degrees, and the outer side of the scraping plate (1455) is in fit connection with one side of the filtering device (10) close to the fresh air inlet (6).

10. The system for recovering exhaust heat and pre-cooling and reheating heat of a central air conditioner according to claim 7, wherein the upper end of the sealing plate (144) is in threaded connection with a fixing screw (146), limiting holes (147) are formed in positions, corresponding to the fixing screw (146), of the front face of the shell (1), and the rear end of the fixing screw (146) is in threaded connection with the inner side of the limiting holes (147).