CN116659006A - Double-refrigerating-circuit serial reverse-flow large-temperature-difference cold and hot air blower set - Google Patents

Double-refrigerating-circuit serial reverse-flow large-temperature-difference cold and hot air blower set Download PDF

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Publication number
CN116659006A
CN116659006A CN202310926003.7A CN202310926003A CN116659006A CN 116659006 A CN116659006 A CN 116659006A CN 202310926003 A CN202310926003 A CN 202310926003A CN 116659006 A CN116659006 A CN 116659006A
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CN
China
Prior art keywords
fixedly connected
shell
close
hot air
plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310926003.7A
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Chinese (zh)
Inventor
贺吉军
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Beijing Juntengda Refrigeration Technology Co ltd
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Beijing Juntengda Refrigeration Technology Co ltd
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Publication date
Application filed by Beijing Juntengda Refrigeration Technology Co ltd filed Critical Beijing Juntengda Refrigeration Technology Co ltd
Priority to CN202310926003.7A priority Critical patent/CN116659006A/en
Publication of CN116659006A publication Critical patent/CN116659006A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
    • B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The application provides a double-refrigeration-loop serial reverse-flow large-temperature-difference cold and hot air unit, which comprises a shell, a placement box, an inner wall fixedly connected to the center of the rear surface of the shell, and a second compressor fixedly installed on the inner wall of the bottom of the placement box close to the right side.

Description

Double-refrigerating-circuit serial reverse-flow large-temperature-difference cold and hot air blower set
Technical Field
The application relates to the technical field of air conditioner refrigeration, in particular to a double-refrigeration loop serial reverse flow large-temperature-difference cold-hot air unit.
Background
At present, mineral resources are greatly developed and underground traffic facilities are newly repaired in China, and air conditioners are required to be installed in working places for ventilation and heat dissipation in places where underground tunnel operation is required such as mining coal mines and constructing highways and railways.
Generally, the working space is too narrow, so that an air conditioning unit cannot be installed, ventilation and heat dissipation are difficult, the working efficiency is low, the working environment is poor, an air conditioner which can be installed in a narrow place such as an underground tunnel can be installed in parallel due to the traditional mode of installing an evaporator and a condenser, the refrigerating capacity is small, the cooling effect is poor, the occupied space of the unit and an air supply and exhaust pipeline is large, the unit is not very convenient to transport, the workload of a user is improved, a large amount of dust is easy to generate in underground operation, the dust enters the unit for protection, the dust blocking net is used for filtering, the dust is easy to block a filter screen of the dust, and the problems of exhaust and the like are solved.
Disclosure of Invention
The double-refrigeration-loop serial reverse-flow large-temperature-difference cold and hot air unit improves the cold and heat carrying capacity of unit air quantity, reduces the area of an air duct and the volume of an air conditioner, solves the problem of air conditioner installation and use in a narrow space, has simple transportation, reduces the workload of a user, has convenient installation and disassembly of two filters, improves the practicability of the device, prevents leakage holes of two dustproof screens from being blocked by dust, influences air supply, and further ensures the service performance of the device.
In order to achieve the above purpose, the present application adopts the following technical scheme: a double-refrigeration loop serial reverse flow large-temperature difference cold-hot air unit comprises:
a housing;
the placement box is fixedly connected with the inner wall at the center of the rear surface of the shell, and the bottom inner wall, close to the right side, of the placement box is fixedly provided with a second compressor;
the first compressor is fixedly arranged on the inner wall of the placement box, which is close to the left side of the bottom;
the branch pipelines are fixedly arranged on the outer surfaces of the first compressor and the second compressor respectively;
the second condenser is fixedly arranged on the inner wall of the shell close to the bottom of the right side, and a liquid inlet of the second condenser is fixedly provided with a second connecting pipeline;
the first evaporator is fixedly arranged on the inner wall of the shell close to the left bottom;
the second evaporator is fixedly arranged on the inner wall, close to the left side of the front surface, of the shell, and a liquid outlet of the second evaporator is fixedly connected with a first connecting pipeline;
the first condenser is fixedly arranged on the inner wall of the shell close to the left bottom;
two dustproof screens fixedly arranged on the rear surface of the shell;
the vertical plates are fixedly connected to two sides of the inner wall of the shell, and the top parts, close to the two sides, of the vertical plates are fixedly provided with air blowers;
the two filters are movably connected to the front surface of the shell;
the baffle is fixedly connected to the center of the inner wall of the bottom of the shell.
Preferably, the liquid outlet of the first evaporator is fixedly connected with the other end of the second connecting pipeline, the liquid inlet of the first condenser is fixedly connected with the other end of the first connecting pipeline, and the electronic expansion valves are fixedly installed on the outer surfaces of the first connecting pipeline and the second connecting pipeline.
Preferably, the two sides of the shell, which are close to the bottom, are respectively and fixedly connected with a bottom plate, the bottoms of the two bottom plates are respectively and fixedly provided with a hydraulic rod, and the four corners of the bottom of the shell are respectively and fixedly provided with universal wheels.
Preferably, the output ends of the two hydraulic rods are fixedly connected with first bearing plates, the bottoms of the two first bearing plates are fixedly connected with a plurality of springs, and the bottoms of the springs are fixedly connected with second bearing plates.
Preferably, the front surface of the shell, which is close to the top, is fixedly connected with a baffle, the bottom of the baffle is fixedly connected with a plurality of elastic sheets, the bottoms of the elastic sheets are fixedly connected with a fixing plate, and the bottom of the fixing plate is fixedly connected with a foam board.
Preferably, the front surface of the shell, which is close to the bottom, is fixedly connected with two bosses, the bottoms of the two bosses are respectively connected with a screw thread nail in a threaded manner, and the tops of the two screw thread nails are respectively fixedly connected with a pressing block.
Preferably, the rear surface of the shell, which is close to two sides, is fixedly connected with a long plate, the rear surface of the shell, which is close to the right side, is fixedly connected with two L-shaped rods, and one side, which is opposite to the L-shaped rods, is fixedly provided with a driving motor.
Preferably, the output shaft of driving motor fixedly connected with threaded rod, the surface threaded connection that the threaded rod is close to the bottom has the sleeve, telescopic left side fixedly connected with connecting plate, the positive surface that the connecting plate is close to both sides is all fixedly connected with scraper blade.
Preferably, two long plates are fixedly connected with long rods on one side, close to the left side, of the long plates, sliding drums are movably sleeved on the outer surfaces of the long rods, and the left sides of the sliding drums are fixedly connected with the right sides of the connecting plates.
Compared with the prior art, the application has the advantages and positive effects that,
1. according to the application, the two-stage evaporator and the condenser are vertically arranged, so that the air supply temperature at the side of the evaporator can be reduced to a lower temperature, the return air temperature at the side of the condenser is increased to a higher temperature, and the heat quantity which can be taken away by a unit with the same size is more, so that one side of wind energy is reduced to a lower temperature in the air conditioning unit, the other side of wind energy is increased to a higher temperature in the air conditioning unit in a mode of intersecting the evaporator and the condenser, the unit wind quantity cold load capacity is improved, the air channel area and the air conditioning volume are reduced, and the problem of using the air conditioner in a narrow space is solved.
2. According to the application, the whole unit is convenient to transport through the universal wheels, when the shell is required to be placed at an operation site, the two bottom plates respectively have the functions of supporting and fixing the two hydraulic rods by controlling the output ends of the two hydraulic rods, so that the two bottom plates are connected with the shell, the output ends of the two hydraulic rods respectively push the two first bearing plates to move downwards, when the two second bearing plates contact the ground, the springs are extruded by the two second bearing plates to generate elasticity, the buffer protection function is provided for the unit inside the shell, the device is further fixed, the bottoms of the universal wheels are contacted with the ground by controlling the output ends of the two hydraulic rods, the transportation of the shell is labor-saving, and the transportation of the device is simple by controlling the universal wheels, so that the workload of a user is reduced.
3. According to the application, the two screw nails can rotate in the two bosses respectively, the two pressing blocks can block the bottoms of the two filters respectively by rotating the two screw nails, at the moment, the tops of the two filters are positioned at the bottom positions of the foam plates, when the two pressing blocks extrude the two filters, the foam plates pass through the fixing plate and extrude the plurality of elastic sheets, when the plurality of elastic sheets are extruded, elasticity is generated, further, when the foam plates extrude the two filters, the two foam plates have a protective effect on the two filters, deformation caused by extrusion of the two filters for a long time can be prevented, the baffle plate has a supporting effect on the plurality of elastic sheets, the two filters are convenient to install and detach, and the practicability of the device is improved.
4. When the two dust shields are used for supplying air, a large amount of dust can be accumulated, an external power supply of the driving motor is turned on, the two L-shaped rods have a supporting and fixing effect on the driving motor, at the moment, an output shaft of the driving motor drives the threaded rod to rotate, the sleeve is connected with the sliding barrel through the connecting plate, the sliding barrel can slide up and down on the outer surface of the long rod, and accordingly the sleeve does not rotate along with the threaded rod when the threaded rod rotates, the sleeve can move up and down on the outer surface of the threaded rod, further the two scrapers move up and down through the connecting plate, the two scrapers are respectively contacted with the outer surfaces of the two dust shields, and when the two scrapers move up and down, scraping effects are achieved on the two dust shields, so that leakage holes of the two dust shields are prevented from being blocked by dust, air supply is affected, and the service performance of the device is further improved.
Drawings
Fig. 1 is a schematic diagram of a three-dimensional structure of a dual-refrigeration loop serial reverse flow large-temperature difference cooling and heating unit provided by the application;
FIG. 2 is a schematic diagram of a partial sectional perspective structure of a dual refrigeration circuit serial reverse flow large temperature difference cooling and heating air unit according to the present application;
FIG. 3 is a schematic view of a schematic perspective view of a dual refrigeration circuit series reverse flow large temperature difference cooling and heating unit with partial cross section;
FIG. 4 is a schematic view of a schematic perspective view of a dual refrigeration circuit series reverse flow large temperature difference cooling and heating unit with partial cross section;
FIG. 5 is a schematic diagram showing a partial perspective structure of a dual-refrigeration loop serial reverse flow large-temperature difference cooling and heating unit according to the present application;
FIG. 6 is a schematic diagram of a partial sectional perspective structure of a dual refrigeration circuit serial reverse flow large temperature difference cooling and heating air unit according to the present application;
FIG. 7 is a schematic view of a cooling and heating unit with two refrigeration loops connected in series and having a large temperature difference in reverse flow, which is partially cut-away and three-dimensional;
FIG. 8 is a schematic diagram of a partial cross-sectional perspective structure of a dual refrigeration circuit serial reverse flow large temperature difference cooling and heating unit according to the present application;
FIG. 9 is a schematic diagram of a partial sectional perspective view of a dual refrigeration circuit serial reverse flow large temperature difference cooling and heating air unit according to the present application;
FIG. 10 is a schematic diagram of a partial cross-sectional three-dimensional structure of a dual refrigeration circuit serial reverse flow large temperature difference cooling and heating unit according to the present application;
FIG. 11 is a schematic diagram of the A-enlarged three-dimensional structure of FIG. 2 of a dual-refrigeration loop serial reverse flow large-temperature difference cold-hot air unit;
fig. 12 is a schematic diagram of an enlarged B perspective structure in fig. 2 of a dual-refrigeration loop serial reverse flow large-temperature difference cooling and heating unit according to the present application.
Legend description: 1. a housing; 2. a partition plate; 201. a dust screen; 202. a blower; 203. placing a box; 204. a first condenser; 205. a first evaporator; 206. a second condenser; 207. a filter; 208. a second evaporator; 209. a first compressor; 210. a second compressor; 211. a vertical plate; 212. a first connecting pipe; 213. a second connecting pipe; 214. dividing the pipeline; 3. a bottom plate; 301. a first pressure-bearing plate; 302. a second pressure-bearing plate; 303. a hydraulic rod; 304. a universal wheel; 305. a spring; 4. a baffle; 401. an elastic sheet; 402. a fixing plate; 403. a foam board; 404. briquetting; 405. a boss; 406. a screw thread nail; 5. a long plate; 501. a driving motor; 502. an L-shaped rod; 503. a threaded rod; 504. a sleeve; 505. a connecting plate; 506. a slide cylinder; 507. a long rod; 508. a scraper.
Detailed Description
In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and therefore the present application is not limited to the specific embodiments of the disclosure that follow.
Embodiment 1, as shown in fig. 1 to 12, the present application provides a dual refrigeration loop serial reverse flow large temperature difference cold-hot air unit, comprising:
a housing 1;
the placing box 203 is fixedly connected to the inner wall of the center of the rear surface of the shell 1, and the second compressor 210 is fixedly arranged on the inner wall of the bottom of the placing box 203 close to the right side, so that the placing box 203 has a protection function on internal parts;
the first compressor 209 is fixedly installed on the inner wall of the placement box 203 near the left side of the bottom, and the first compressor 209 and the second compressor 210 can convey gas and can increase gas pressure;
a plurality of sub-pipes 214 fixedly installed at outer surfaces of the first compressor 209 and the second compressor 210, respectively, and gas is transferred through the plurality of sub-pipes 214;
the second condenser 206 is fixedly arranged on the inner wall of the shell 1 close to the bottom of the right side, and a second connecting pipeline 213 is fixedly arranged at a liquid inlet of the second condenser 206;
a first evaporator 205 fixedly installed on the inner wall of the housing 1 near the bottom of the left side;
the second evaporator 208 is fixedly arranged on the inner wall of the shell 1 close to the left side of the front surface, and a liquid outlet of the second evaporator 208 is fixedly connected with a first connecting pipeline 212;
a first condenser 204 fixedly installed on an inner wall of the housing 1 near the bottom of the left side;
two dustproof screens 201 fixedly installed on the rear surface of the housing 1, the two dustproof screens 201 can prevent external dust from entering the interior of the housing 1, so that a unit inside the housing 1 is damaged;
the vertical plate 211 is fixedly connected to two sides of the inner wall of the shell 1, the top parts, close to the two sides, of the vertical plate 211 are fixedly provided with the air blowers 202, the vertical plate 211 has a fixed function on the two air blowers 202, and the two air blowers 202 convey internal gas;
two filters 207, which are movably connected to the front surface of the housing 1, wherein the two filters 207 are positioned at the return air inlet of the unit;
the baffle 2 is fixedly connected to the center of the inner wall of the bottom of the shell 1, and the baffle 2 isolates hot air from cold air.
Further, as shown in fig. 1-12, the liquid outlet of the first evaporator 205 is fixedly connected with the other end of the second connecting pipe 213, the liquid inlet of the first condenser 204 is fixedly connected with the other end of the first connecting pipe 212, and electronic expansion valves are fixedly installed on the outer surfaces of the first connecting pipe 212 and the second connecting pipe 213.
Further, as shown in fig. 1-12, two sides of the casing 1, which are close to the bottom, are fixedly connected with bottom plates 3 respectively, hydraulic rods 303 are fixedly installed at the bottoms of the two bottom plates 3, universal wheels 304 are fixedly installed at four corners of the bottom of the casing 1, when the casing 1 is placed at an operation site, the two bottom plates 3 have supporting and fixing functions on the two hydraulic rods 303 respectively by controlling the output ends of the two hydraulic rods 303, so that the two bottom plates 3 are connected with the casing 1, the bottoms of the universal wheels 304 are contacted with the ground by controlling the output ends of the two hydraulic rods 303, the conveying of the casing 1 is labor-saving, and the conveying of the device is simple by the universal wheels 304, so that the workload of a user is reduced.
Further, as shown in fig. 1-12, the output ends of the two hydraulic rods 303 are fixedly connected with the first bearing plates 301, the bottoms of the two first bearing plates 301 are fixedly connected with the plurality of springs 305, the bottoms of the plurality of springs 305 are fixedly connected with the second bearing plates 302, the output ends of the two hydraulic rods 303 respectively push the two first bearing plates 301 to move downwards, when the two second bearing plates 302 contact the ground, the plurality of springs 305 are extruded by the two second bearing plates 302 to generate elasticity, and a buffer protection effect is provided for the unit inside the casing 1, so that the device is fixed.
Further, as shown in fig. 1-12, the front surface of the housing 1 near the top is fixedly connected with the baffle 4, the bottom of the baffle 4 is fixedly connected with the plurality of elastic sheets 401, the bottoms of the plurality of elastic sheets 401 are fixedly connected with the fixing plate 402, the bottoms of the fixing plate 402 are fixedly connected with the foam boards 403, the tops of the two filters 207 are positioned at the bottoms of the foam boards 403, when the two press blocks 404 press the two filters 207, the foam boards 403 can press the plurality of elastic sheets 401 through the fixing plate 402, when the plurality of elastic sheets 401 are pressed, elasticity can be generated, the foam boards 403 further press the two filters 207, when the two filters 207 are pressed, the two foam boards 403 have a protective effect on the two filters 207, the two filters 207 can be prevented from being deformed due to long-term pressing, the baffle 4 has a supporting effect on the plurality of elastic sheets 401, the two filters 207 are convenient to mount and dismount, and the practicability of the device is improved.
Further, as shown in fig. 1-12, the front surface of the housing 1 near the bottom is fixedly connected with two bosses 405, the bottoms of the two bosses 405 are respectively and threadably connected with a threaded nail 406, the tops of the two threaded nails 406 are respectively and fixedly connected with a pressing block 404, the two threaded nails 406 can rotate in the two bosses 405 respectively, and the bottoms of the two filters 207 can be blocked by rotating the two threaded nails 406 by the two pressing blocks 404 respectively.
Further, as shown in fig. 1-12, the rear surfaces of the housing 1 near two sides are fixedly connected with a long plate 5, the rear surface of the housing 1 near the right side is fixedly connected with two L-shaped rods 502, one side of the two L-shaped rods 502 opposite to each other is fixedly provided with a driving motor 501, and the two L-shaped rods 502 have a supporting and fixing function on the driving motor 501.
Further, as shown in fig. 1-12, the output shaft of the driving motor 501 is fixedly connected with a threaded rod 503, the outer surface of the threaded rod 503 close to the bottom is in threaded connection with a sleeve 504, the left side of the sleeve 504 is fixedly connected with a connecting plate 505, the front surfaces of the connecting plates 505 close to the two sides are both fixedly connected with scraping plates 508, the output shaft of the driving motor 501 is opened to drive the threaded rod 503 to rotate, the sleeve 504 is connected with a sliding cylinder 506 through the connecting plate 505, when the threaded rod 503 rotates, the sleeve 504 does not rotate along with the threaded rod 503, so that the sleeve 504 can move up and down on the outer surface of the threaded rod 503, further, two scraping plates 508 move up and down through the connecting plate 505, the two scraping plates 508 are respectively in contact with the outer surfaces of the two dustproof nets 201, when the two scraping plates 508 move up and down, thereby preventing leakage holes of the two dustproof nets 201 from being blocked by dust, affecting the air supply, and further enabling the service performance of the device.
Further, as shown in fig. 1-12, two long plates 5 are fixedly connected with long rods 507 near the opposite sides of the left side, sliding drums 506 are movably sleeved on the outer surfaces of the long rods 507, the left sides of the sliding drums 506 are fixedly connected with the right sides of the connecting plates 505, and the sliding drums 506 can slide up and down on the outer surfaces of the long rods 507.
Working principle: the two filters 207 are positioned at the air return opening of the unit, the first evaporator 205 and the second evaporator 208 are vertically arranged in the front and back of the housing 1 according to the air flow direction, the second evaporator 208 is close to the air return opening, the first condenser 204 and the second condenser 206 are vertically arranged in the front and back according to the air flow direction, the first condenser 204 is close to the air return opening, namely, the first refrigeration cycle loop and the second refrigeration cycle loop are arranged in a crossing way, the two blowers 202 are arranged at the air outlet, namely, the positions of the two dustproof nets 201, because the two dustproof nets 201 can prevent external dust from entering the interior of the housing 1 during underground operation, the unit inside the housing 1 is damaged, the air outlet on the side of the second evaporator 208 and the air outlet on the side of the first evaporator 205 is a cold air outlet, the air outlet on the side of the second condenser 206 and the air outlet on the side of the first condenser 204 is a hot air outlet, when the unit needs to be started, the two blowers 202 are started first, and then a group of circulation loops is started, the first evaporator 205, the first compressor 209, the first condenser 204 and the expansion valve are sequentially connected in series through the first connecting pipeline 212 and the branch pipeline 214 to form a first refrigeration loop, the second evaporator 208, the second compressor 210, the second condenser 206 and the expansion valve are sequentially connected in series through the second connecting pipeline 213 and the dust screen 201 to form a second refrigeration loop, the second circulation loop is the same, and the other group of circulation loops are started after the operation is stable, so that the excessive circuit current during parallel starting can be avoided, at this time, the first evaporator 205 and the second evaporator 208 are contacted with a high-temperature heat source, the liquid working medium is heated by the high-temperature heat source in the evaporator to evaporate into gas and absorb heat, the gas formed by evaporation is extracted and compressed through the first compressor 209 and the second compressor 210 to be changed into a high-temperature high-pressure state and is conveyed to the first condenser 204 and the second condenser 206, the high-temperature high-pressure gaseous refrigerant is cooled by the second evaporator 208, and then is cooled by the first evaporator 205 to a lower temperature, and is sent to a cooling area by the evaporation side air supply fan, the air entering the condensation side is heated by the first condenser 204, and then is sent to a heat dissipation area by the second condenser 206 to a higher temperature, and then is sent to a cooling area by the condensation side air supply fan 202, when the evaporation temperature of the second evaporator 208 is higher than that of the first evaporator 205, the condensation temperature of the second condenser 206 is higher than that of the first condenser 204, the evaporating temperature and condensing temperature in the second circulation loop are higher than those in the first circulation loop, and the condensing temperature and evaporating temperature in the first circulation loop are lower than those in the first circulation loop, so that the difference between the evaporating temperature and condensing temperature in different circulation loops can be effectively balanced, the respective evaporating and condensing pressure differences of the two loops are also approximate, the power consumption of the two compressors is approximate, the finally treated cold and hot air is respectively discharged by fans on the evaporating side and the condensing side, the two-stage evaporator and the condenser are vertically arranged, the air supply temperature on the evaporator side can be reduced to lower temperature, the return air temperature on the condenser side is increased to higher temperature, the heat which can be taken away by a unit with the same size is more, one side wind energy is reduced to lower temperature in the air conditioner unit, the other side wind energy is increased to higher temperature in the air conditioner unit through the way that the evaporator and the condenser are arranged in a crossing way, the air-conditioning unit has the advantages of improving the cold-carrying capacity per unit air volume, reducing the area of an air duct and the volume of an air conditioner, solving the problem of mounting and using the air conditioner in a narrow space, ensuring that the whole unit is convenient to transport through a plurality of universal wheels 304, ensuring that the unit is fixed by controlling the output ends of two hydraulic rods 303 when the housing 1 is required to be placed at an operation site, ensuring that the two bottom plates 3 are connected with the housing 1 by respectively supporting and fixing the two hydraulic rods 303, respectively pushing the two first bearing plates 301 to move downwards by the output ends of the two hydraulic rods 303, ensuring that the bottoms of the plurality of universal wheels 304 are contacted with the ground through controlling the output ends of the two hydraulic rods 303, ensuring that the housing 1 is labor-saving to transport by extruding the two second bearing plates 302 when the two second bearing plates 302 are contacted with the ground, through the universal wheels 304, the device is easy to transport, the workload of a user is reduced, the two screw nails 406 can rotate in the two bosses 405 respectively, the two pressing blocks 404 can block the bottoms of the two filters 207 respectively by rotating the two screw nails 406, at the moment, the tops of the two filters 207 are positioned at the bottoms of the foam boards 403, when the two pressing blocks 404 press the two filters 207, the foam boards 403 press the elastic sheets 401 through the fixing boards 402, the elastic sheets 401 generate elasticity when being pressed, the foam boards 403 press the two filters 207, the two foam boards 403 have a protective effect on the two filters 207 when pressing the two filters 207, the deformation caused by long-term pressing of the two filters 207 can be prevented, the baffle 4 has a supporting effect on the elastic sheets 401, the installation of two filters 207 is dismantled conveniently, the practicality of device is improved, when underground operation, two dust screen 201 can pile up a large amount of dust when the air supply, open driving motor 501's external power source, two L type poles 502 have a fixed effect of supporting driving motor 501, driving motor 501's output shaft this moment, drive threaded rod 503 and rotate, sleeve 504 links together through connecting plate 505 and slide tube 506, slide tube 506 can slide from top to bottom at the surface of stock 507, thereby when threaded rod 503 rotates, sleeve 504 does not rotate along with threaded rod 503, thereby sleeve 504 can reciprocate at threaded rod 503 surface, further make two scrapers 508 reciprocate through connecting plate 505, two scrapers 508 contact with the surface of two dust screen 201 respectively, when two scrapers 508 reciprocate, the effect of scraping to two dust screen 201, thereby can prevent that the leak hole of two dust screen 201 from being plugged up by the dust, the influence, further make the performance of device.
The present application is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present application without departing from the technical content of the present application still belong to the protection scope of the technical solution of the present application.

Claims (9)

1. The utility model provides a big difference in temperature cold and hot air unit of two refrigeration circuit series connection reverse flow which characterized in that includes:
a housing (1);
the placement box (203) is fixedly connected with the inner wall at the center of the rear surface of the shell (1), and the bottom inner wall of the placement box (203) close to the right side is fixedly provided with a second compressor (210);
a first compressor (209) fixedly installed on an inner wall of the placement box (203) near the left side of the bottom;
a plurality of sub-pipes (214) fixedly installed on outer surfaces of the first compressor (209) and the second compressor (210), respectively;
the second condenser (206) is fixedly arranged on the inner wall of the shell (1) close to the bottom of the right side, and a second connecting pipeline (213) is fixedly arranged at a liquid inlet of the second condenser (206);
the first evaporator (205) is fixedly arranged on the inner wall of the shell (1) close to the left bottom;
the second evaporator (208) is fixedly arranged on the inner wall, close to the left side of the front surface, of the shell (1), and a liquid outlet of the second evaporator (208) is fixedly connected with a first connecting pipeline (212);
the first condenser (204) is fixedly arranged on the inner wall of the shell (1) close to the left bottom;
two dustproof screens (201) fixedly mounted on the rear surface of the housing (1);
the vertical plates (211) are fixedly connected to two sides of the inner wall of the shell (1), and the top parts, close to the two sides, of the vertical plates (211) are fixedly provided with air blowers (202);
two filters (207) movably connected to the front surface of the housing (1);
the baffle (2) is fixedly connected to the center of the inner wall of the bottom of the shell (1).
2. The dual refrigeration circuit serial reverse flow large temperature difference cold-hot air unit according to claim 1, wherein: the liquid outlet of the first evaporator (205) is fixedly connected with the other end of the second connecting pipeline (213), the liquid inlet of the first condenser (204) is fixedly connected with the other end of the first connecting pipeline (212), and the electronic expansion valves are fixedly installed on the outer surfaces of the first connecting pipeline (212) and the second connecting pipeline (213).
3. The dual refrigeration circuit serial reverse flow large temperature difference cold-hot air unit according to claim 1, wherein: two sides of the shell (1) close to the bottom are fixedly connected with bottom plates (3) respectively, the bottoms of the two bottom plates (3) are fixedly provided with hydraulic rods (303), and four corners of the bottom of the shell (1) are fixedly provided with universal wheels (304).
4. A dual refrigeration circuit series reverse flow large temperature difference cold-hot air unit as claimed in claim 3, wherein: the output ends of the two hydraulic rods (303) are fixedly connected with first bearing plates (301), the bottoms of the two first bearing plates (301) are fixedly connected with a plurality of springs (305), and the bottoms of the springs (305) are fixedly connected with second bearing plates (302).
5. The double refrigeration circuit serial reverse flow large temperature difference cold and hot air unit according to claim 4, wherein: the shell (1) is close to the positive surface fixedly connected with baffle (4) at top, the bottom fixedly connected with of baffle (4) a plurality of elastic pieces (401), a plurality of the bottom of elastic piece (401) is all fixedly connected with fixed plate (402), the bottom fixedly connected with foam board (403) of fixed plate (402).
6. The double refrigeration circuit serial reverse flow large temperature difference cold and hot air unit according to claim 5, wherein: the front surface of the shell (1) close to the bottom is fixedly connected with two bosses (405), the bottoms of the two bosses (405) are respectively and spirally connected with a screw nail (406), and the tops of the two screw nails (406) are respectively and fixedly connected with a pressing block (404).
7. The dual refrigeration circuit serial reverse flow large temperature difference cold and hot air unit according to claim 6, wherein: the novel electric motor is characterized in that long plates (5) are fixedly connected to the rear surfaces of the outer shell (1) close to two sides, two L-shaped rods (502) are fixedly connected to the rear surface of the outer shell (1) close to the right side, and driving motors (501) are fixedly installed on one side, opposite to the L-shaped rods (502).
8. The dual refrigeration circuit serial reverse flow large temperature difference cold and hot air unit as claimed in claim 7, wherein: the novel scraper blade is characterized in that the output shaft of the driving motor (501) is fixedly connected with a threaded rod (503), the threaded rod (503) is connected with a sleeve (504) in a threaded manner near the outer surface of the bottom, the left side of the sleeve (504) is fixedly connected with a connecting plate (505), and the front surfaces of the connecting plate (505) near the two sides are fixedly connected with the scraper blade (508).
9. The dual refrigeration circuit serial reverse flow large temperature difference cold-hot air unit according to claim 1, wherein: two long plates (5) are fixedly connected with long rods (507) on one side, close to the left side, of the long rods (507), sliding drums (506) are movably sleeved on the outer surfaces of the long rods (507), and the left sides of the sliding drums (506) are fixedly connected with the right sides of connecting plates (505).
CN202310926003.7A 2023-07-26 2023-07-26 Double-refrigerating-circuit serial reverse-flow large-temperature-difference cold and hot air blower set Pending CN116659006A (en)

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CN202310926003.7A CN116659006A (en) 2023-07-26 2023-07-26 Double-refrigerating-circuit serial reverse-flow large-temperature-difference cold and hot air blower set

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Application Number Priority Date Filing Date Title
CN202310926003.7A CN116659006A (en) 2023-07-26 2023-07-26 Double-refrigerating-circuit serial reverse-flow large-temperature-difference cold and hot air blower set

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117722739A (en) * 2024-02-18 2024-03-19 北京君腾达制冷技术有限公司 Dual-refrigeration cold and hot air blower set

Citations (5)

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Publication number Priority date Publication date Assignee Title
AU7509998A (en) * 1997-07-11 1999-01-21 Brenton Thomas Nicholls Method and apparatus for cleaning air conditioning ducted systems
CN104061630A (en) * 2014-07-07 2014-09-24 叶立英 Unit type fresh air processing machine
CN211854355U (en) * 2020-02-21 2020-11-03 云南华国科技有限公司 Dust filtering and ventilating device for communication base station machine room
CN215842329U (en) * 2021-08-19 2022-02-18 江苏绿动检测科技有限公司 Novel purification device for occupational health detection
CN218237794U (en) * 2022-09-16 2023-01-06 湖北正晟净化科技有限公司 Air purifier with air intake self-cleaning function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7509998A (en) * 1997-07-11 1999-01-21 Brenton Thomas Nicholls Method and apparatus for cleaning air conditioning ducted systems
CN104061630A (en) * 2014-07-07 2014-09-24 叶立英 Unit type fresh air processing machine
CN211854355U (en) * 2020-02-21 2020-11-03 云南华国科技有限公司 Dust filtering and ventilating device for communication base station machine room
CN215842329U (en) * 2021-08-19 2022-02-18 江苏绿动检测科技有限公司 Novel purification device for occupational health detection
CN218237794U (en) * 2022-09-16 2023-01-06 湖北正晟净化科技有限公司 Air purifier with air intake self-cleaning function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117722739A (en) * 2024-02-18 2024-03-19 北京君腾达制冷技术有限公司 Dual-refrigeration cold and hot air blower set
CN117722739B (en) * 2024-02-18 2024-05-03 北京君腾达制冷技术有限公司 Dual-refrigeration cold and hot air blower set

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Application publication date: 20230829