CN111397240B - Cooperative control and synchronous multi-cycle heat pump type air conditioner composite system - Google Patents

Cooperative control and synchronous multi-cycle heat pump type air conditioner composite system Download PDF

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Publication number
CN111397240B
CN111397240B CN202010226495.5A CN202010226495A CN111397240B CN 111397240 B CN111397240 B CN 111397240B CN 202010226495 A CN202010226495 A CN 202010226495A CN 111397240 B CN111397240 B CN 111397240B
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water
heat exchanger
condenser
heat
heating
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CN111397240A (en
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刘恩海
李薇
张文芸
钱英芝
于海龙
朱宝忠
魏玉平
龚亚军
孙运兰
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Changzhou University
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Changzhou University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • F24F2006/046—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements with a water pump
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/29—High ambient temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/31—Low ambient temperatures

Abstract

The invention belongs to the technical field of heating and ventilation air conditioners, and relates to a cooperative control and synchronous multi-cycle heat pump type cooling and heating air conditioner composite system, which widens the refrigerating and heating ranges of a traditional air conditioning unit by designing a multi-cycle passage and comprehensively improves the refrigerating and heating capacities of a heat pump cooling and heating air conditioner system, thereby realizing high-efficiency ultralow-temperature heating circulation and ultrahigh-temperature refrigerating circulation, effectively solving the outstanding problems of large energy consumption, small environmental temperature range adaptation range, application range and the like of the existing heat pump type cooling and heating air conditioner and realizing the unification of high efficiency, energy conservation and reliable operation of the system.

Description

Cooperative control and synchronous multi-cycle heat pump type air conditioner composite system
Technical Field
The invention relates to an air conditioning system, in particular to a cooperative control and synchronous multi-cycle heat pump type cooling and heating air conditioning composite system.
Background
The traditional air conditioning system has limited refrigeration and heating upper limit effects, a heat pump air conditioner starts a common heating mode and cannot normally heat at low-temperature ambient temperature (about-10 to-15 ℃), and a heat pump air conditioner starts a common cooling mode and cannot normally cool at high-temperature ambient temperature (about 43 ℃).
Disclosure of Invention
The invention aims to solve the problem that the traditional air conditioning unit has a small refrigerating and heating range, and realizes the comprehensive improvement of the refrigerating and heating capacity of the heat pump air conditioning system. Aiming at the problems, the invention provides a cooperative control and synchronous multi-cycle heat pump type air conditioner composite system, which realizes high-efficiency ultralow-temperature heating cycle and ultrahigh-temperature refrigeration cycle, effectively solves the outstanding problems of large energy consumption, small environment temperature adaptation range, small application range and the like of the conventional heat pump type air conditioner, and realizes the unification of high-efficiency, energy-saving and reliable operation of the system. The system can stably and reliably operate, realizes the functions of high-temperature refrigeration and low-temperature heating, is convenient for indoor temperature and humidity regulation, promotes the uniformity and constancy of an indoor temperature field, and improves the comfort of an air-conditioning room.
The technical scheme adopted by the invention is as follows: a cooperative control and synchronous multi-cycle heat pump type air conditioning composite system comprises
A refrigerating device: comprises a compressor, a four-way reversing valve, a condenser I and an electromagnetic valve K which are sequentially communicated through a channel2Ethylene glycol solution storage tank and main path throttle valve K5The condensation medium in the first evaporator reflows to the compressor to form a circulation main path; an electromagnetic valve K connected in sequence is also arranged between the first condenser and the first evaporator6Auxiliary throttle valve K13Injector and solenoid valve K7Forming a circulating auxiliary road; the first condenser is also communicated with an organic salt solution storage tank;
the refrigerant is compressed by the compressor and sent to the condenser I to become liquid refrigerant, and then is sent to the electromagnetic valve K2Flows through the ethylene glycol liquid storage tank and is cooled down through the main path throttle valve K5Flow splitting after throttling and pressure reduction: one path enters the first evaporator along the main circulation path, and after evaporation and heat absorption, the other path returns to the compressor for continuous compression; another one isRoad edge circulation auxiliary road electromagnetic valve K6Auxiliary throttle valve K13Solenoid valve K7Then, the gas enters a main circulation path after being pressurized in the ejector;
a heating device: comprises a heat exchanger communicated with a circulating channel and an electromagnetic valve K communicated with the heat exchanger4Connected cavitation generator, refrigerant water in the heat exchanger passes through an electromagnetic valve K4Enters a cavitation generator, generates a large amount of bubbles when passing through a pore plate in the cavitation generator, releases heat energy and then flows back to the heat exchanger.
Furthermore, the heating device also comprises a compressor, a four-way reversing valve, a second condenser and a main path throttle valve K which are communicated through a circulating channel5、K1And a second evaporator, wherein the gaseous refrigerant is compressed by the compressor and enters a second condenser, exchanges heat with refrigerant water from the tail end and is condensed into a liquid refrigerant, and the liquid refrigerant passes through a main path throttle valve K5Throttling, reducing pressure, entering an evaporator II, evaporating, absorbing heat, changing into a gaseous refrigerant, and returning to the compressor for continuous compression.
Furthermore, the second condenser and the first evaporator are the same device; the evaporator II and the condenser I are the same device.
Furthermore, a micro humidifier is arranged on the side of the heat exchanger and comprises a circulating electronic water pump, a water tank, a wet film material and a water distributor, the circulating electronic water pump sends water in the water tank to the water distributor, the wet film material washes dry air entering the micro humidifier, the water distributor humidifies the air, the wet film material purifies the air, and the humid and clean air is conveyed out through a fan device.
Furthermore, a silencing mechanism is arranged on the outer wall of the heat exchanger, the outer wall of the heat exchanger comprises an inner shell and an outer shell, a cavity is arranged between the inner shell and the outer shell, one side of the inner shell, facing the outer shell, is provided with a layered silencing belt and a micro-perforated plate in sequence, and a silencing cavity is formed between the outer shell and the micro-perforated plate.
Furthermore, violently pipe water inlet pipe section on adopts the deformation pipe material, and the lateral wall of deformation pipe is the wave and changes, and the inner wall of violently managing in center then adopts the form of internal thread upwards, adopts the pipeline type of two kinds so that carry out the heat transfer better.
The beneficial effects produced by the invention comprise: the air conditioning system (1) is suitable for refrigeration circulation in an extremely high temperature environment; (2) the heating cycle in an extremely low temperature environment is adapted; (3) indoor air purification circulation which is timely humidified by adopting a wet film material; (4) carrying out anti-condensation and air-out mute silencing treatment circulation; (5) the 'wing vortex type' tail end device is arranged to strengthen heat exchange circulation.
Description of the drawings:
FIG. 1 is a system operation diagram
FIG. 2 is a view of a humidifier
FIG. 3 is a top view of the heat exchanger of the present invention
FIG. 4 is a partial enlarged view of a silencing structure of an air conditioner
FIG. 5 is a partial enlarged view of the muffling chamber
FIG. 6 is a view of the shell of the heat exchanger of the present invention
FIG. 7 is an internal view and control diagram of the inventive heat exchanger
FIG. 8 is a schematic view of a heat exchange tube
FIG. 9 is a sectional view of a heat exchange tube
FIG. 10 is an enlarged view of a wing-type vortex generator
FIG. 11 is a partial enlarged view of an electric heating wire inside a heat exchange tube
In the figure: 1. a compressor; 2. a four-way reversing valve; 3. a gas-liquid separator; 4. an organic salt solution storage tank; 5. a purge valve; 6. a liquid discharge port; 7. cooling water; 8. a condenser; 9. an ejector; 10. a glycol solution storage tank; 11. an ejection port; 12. a solution pump; 13. an evaporator; 14. an electric heating wire; 15. a water collector; 16, a humidifier; 18. a cavitation generator; 19. controlling the monitor; 20. a terminal heat exchanger; 21. a water dispenser; 22. moist air; 23. a wet film material; 24. drying the air; 25. a water tank; 26. a water pump; 27. a fan; a heat exchanger rear wall housing; 30. a heat exchanger rear wall inner shell; 31. a heat exchange pipe; 32. a sound deadening band; 33. the rear side of the micro-perforated plate; 34. the front side of the micro-perforated plate; 35. a sound-deadening chamber; 36. a soft belt; 28. a heat exchanger back shell fan; 3. a heat exchanger housing; 39. 45. a sensing element; 40. a gravity detector; 41. a humidity detector; 42. a temperature detector; 43. an air quantity detector; 44. a control center; 46. a connecting material; 47. drying the soft belt; 48. an inlet transverse pipe of the heat exchanger; 49. a reducer pipe; 50. a wing-type vortex generator; 52. 53. circulating the electronic water pump.
Main path throttle valve K5Auxiliary throttle valve K13And the other valves are all control valves (electromagnetic valves).
Detailed Description
The present invention is explained in further detail below with reference to the drawings and the specific embodiments, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
As shown in fig. 1: the air conditioning system comprises a compressor 1, a four-way reversing valve 2, a condenser 8 and an electromagnetic valve K which are sequentially communicated through a channel2A glycol solution storage tank 10 and a main path throttle valve K5And an evaporator 13, wherein the condensing medium in the evaporator 13 flows back to the compressor 1 to form a circulation main circuit; an electromagnetic valve K connected in sequence is also arranged between the condenser 8 and the evaporator 136Auxiliary throttle valve K13Injector 9 and solenoid valve K7Forming a circulating auxiliary road; the condenser 8 is also communicated with an organic salt solution storage tank 4, an electromagnetic valve K3 is arranged on a channel between the organic salt solution storage tank 4 and the condenser 8, a pipe which is arranged from the organic salt solution storage tank 4 is only arranged outside the pipe which enters the condenser 8, namely, the fluid inside the pipe is not communicated and contacted, and is the heat transfer between the pipe and the pipe, an air release valve 5 and a liquid discharge port 6 are arranged on the organic salt solution storage tank 4, the above is a refrigerating communication line, an evaporator 13 in the refrigerating process is the condenser 8 in the heating process, the condenser 8 is the evaporator 13, and the compressor 1 is also connected with a gas-liquid separator 3.
A channel for connecting the condenser 8 and the electromagnetic valve K5 is also arranged between the condenser and the electromagnetic valve K5, the electromagnetic valve K1 is arranged on the channel, the heat exchanger 20 communicated with the heat exchanger through a circulating channel is also arranged on the heat exchange device, and the electromagnetic valve K is arranged between the heat exchanger and the heat exchanger4 A cavitation generator 18 is connected, and refrigerant water in the heat exchanger 20 passes through a solenoid valve K4Enters the cavitation generator 18, generates a large amount of bubbles when passing through an orifice plate in the cavitation generator 18, releases heat energy and then flows back to the heat exchanger, and the heat exchanger 20 is provided with a scavenging valve 17. A sensitive element 3 is arranged in the heat exchanger9. 45 respectively monitoring signals at two ends of the heat exchanger in time.
(1) The method is suitable for refrigeration circulation in an extremely high temperature environment: under the high-temperature environment temperature (about 43 ℃), the heat pump air conditioner starts a common refrigeration mode and can not normally refrigerate, and in order to ensure the reliable operation of the heat pump air conditioner under the extreme high-temperature environment, a high-temperature refrigeration cycle is provided: as shown in FIG. 1, the four-way reversing valve 2 switches the cooling mode, K1Off, K2、K3、K7、K6And (4) opening. The refrigerating working medium is compressed by a compressor 1 and sent into a condenser 8, exchanges heat with cooling water 7 which is cooled by an organic salt solution storage tank 4 and comes from a cooling tower, is cooled and condensed to become a liquid refrigerating working medium, and is changed into a liquid refrigerating working medium by an electromagnetic valve K2After the ethylene glycol liquid storage tank 10 is cooled and throttled and depressurized by the main path throttle valve K: one path of the refrigerant water enters the evaporator 13, evaporates and absorbs heat from the tail end (the refrigerant water carries cold energy to enter the heat exchanger 20 to exchange heat with indoor air, and the cold energy is brought into the room to realize refrigeration), becomes gaseous refrigerant, and returns to the compressor 1 to continue to be compressed. On the other hand, the other path passes through an electromagnetic valve K along the auxiliary circulation system6Auxiliary throttle valve K13Secondary throttling pressure reducing electromagnetic valve K6The mixed fluid is mixed with the main path refrigeration working medium, the refrigerant with different pressures, namely high temperature, high pressure and high flow rate, of the two paths of refrigeration working media enters a receiving chamber of the ejector 9, the low pressure in front of the ejector 9 is injected, the mixed fluid is mixed in a mixing chamber in the ejector 9 and stably enters a pressurizing chamber, the pressurizing chamber is a certain pipe section in the ejector 9, the internal pressure changes due to pipe diameter changes, namely, the pressure is increased, the pressure of the sucked steam is gradually increased, the pressurized mixed fluid in the ejector 9 is mixed with the main path circulation refrigerant and then is injected in the ejector 9, the main path circulation refrigeration working medium is supercooled in the ethylene glycol liquid storage tank 10, the refrigeration cycle is completed, and the ejector 9 injects the mixed fluid, namely, the two paths of refrigerant fluid are mixed. Meanwhile, in the ethylene glycol liquid storage tank 10, the ethylene glycol solution in the tank completes multiple atomization spraying of the main path refrigeration working medium flowing through the tank under the action of the solution pump 12, and supercooling heat exchange is promoted. (2) The method is suitable for heating circulation in an extremely low temperature environment: at low levelUnder the temperature of the warm environment (about-10 to-15 ℃), the heat pump air conditioner starts a common heating mode and cannot normally heat, and in order to ensure that the heat pump air conditioner can reliably run under the extreme low temperature environment, a low-temperature environment heating cycle is provided: as shown in FIG. 1, the four-way selector valve 2 switches heating mode, K1Opening, K2、 K3、K7、K6And closing. The whole heating is timely detected and regulated according to the terminal temperature: and matching the mode I, the mode II and the mode III in a cooperative combination manner.
Firstly, an operation mode I: the refrigerant is compressed by the compressor 1 and enters the evaporator 13 (at this time, the evaporator 13 becomes the condenser 8), and is cooled and condensed by refrigerant water from the tail end (the refrigerant water carries heat to enter the heat exchanger 20, exchanges heat with indoor air, brings the heat into the room to realize heating), and then becomes liquid refrigerant, and passes through the main path throttle valve K5The refrigerant enters a condenser 8 (at the moment, the condenser 8 becomes an evaporator 13) after throttling and pressure reduction, is evaporated to absorb heat from cooling water 7, then becomes a gaseous refrigerant, returns to the compressor 1 to be compressed continuously, and continues to circulate for heating.
Operation mode two: according to the detection of the temperature at the tail end, when the common heating can not meet the requirement, the electromagnetic valve K is opened, a little refrigerant water introduced from the tail end heat exchanger 20 enters the cavitation generator 18, and when the refrigerant water passes through the orifice plate in the cavitation generator 18, a large amount of bubbles are generated when the refrigerant water reaches the set pressure value of the cavitation generator 18 due to the flow-blocking effect of the orifice plate and the sharp increase of the flow rate and the pressure of the refrigerant water, so that an energy effect is formed, the local high-temperature thermal efficiency is output, and the heat energy is released. The refrigerant water carries the heat released by the cavitation generator 18 to return to the inlet of the tail end heat exchanger 20 and enter the heat exchanger for assisting heat exchange and improving the heating capacity.
Operation mode three: according to the detection of the temperature at the tail end, when the ordinary heating can not meet the requirement, the electric heating wire 14 is started to heat the refrigerant water in the water collector 15, and when the temperature setting requirement is met, the refrigerant water is sent into the inlet of the tail end heat exchanger 20 through the circulating pump 53 and enters the heat exchanger to assist heat exchange and improve the heating capacity.
Meanwhile, the heat exchanger 20 is provided with the micro humidifier 16, and when the moisture of the air is detected to be insufficient, the indoor air can be humidified, so that people feel comfortable.
The invention also aims at the system to carry out function deployment, which comprises the following steps:
for the function adjustment of the end heat exchanger 20, a micro humidifier 16 is installed on the lower left side thereof, as shown in fig. 2. The micro humidifier 16 comprises a circulating electronic water pump 26, a water tank 25, a wet film material 23 and a water distributor 21, wherein the water in the water tank 25 is sent to the water distributor 21 by the circulating electronic water pump 26, the wet film material 23 washes dry air 24 entering the humidifier 16, the air is purified by the wet film material 23 while the water distributor 21 humidifies the air, and the wet air 22 is sent to the room through a fan 27 device 27, so that the indoor environment humidity is improved, and the indoor air circulation is promoted.
The function of the end heat exchanger 20 is modified, and the silencing and silencing processes are as shown in fig. 4, 5, and 6. The outer wall of the heat exchanger is provided with a silencing mechanism, the outer wall of the heat exchanger comprises a heat exchanger rear wall inner shell 30 and a heat exchanger rear wall outer shell 29, a cavity is arranged between the inner shell 30 and the outer shell 29, one side of the inner shell 30, facing the outer shell 29, is provided with a layered silencing belt 32 and a micro-perforated plate in sequence, and a silencing cavity 35 is formed between the outer shell 29 and the micro-perforated plate. Firstly, an aluminum film and a graphene layer are coated on the surface of an inner shell 10 of a 'convex cavity' on the rear wall of the heat exchanger equipment, so that the heat reflection performance and the heat transfer performance are good, and the heat exchanger equipment plays roles in sound insulation and moisture prevention. ② further explain: the noise generated by the fan 28 sequentially passes through the sound-deadening band 32 (the inner wall is pasted with a 'pyramid-shaped wedge-shaped' sound-absorbing material which has a sound-absorbing function and is made of porous fibers, when the sound wave transmitted from the end of the fan 28 enters from the tip of the 'pyramid-shaped wedge-shaped' sound-absorbing material, due to the gradual transition property of the sound-deadening band 32, the acoustic impedance of the material and the acoustic impedance of air can be well matched, so that the sound wave is transmitted into the 'pyramid-shaped wedge-shaped' sound-deadening band 32 and is efficiently absorbed, and the effects of silence and sound deadening are achieved) and the micro-perforated plate and then reaches the sound-deadening cavity 35; in the sound attenuation chamber 35, the hose is connected with the rear side 33 of the micro-perforated plate, one part of the noise reaching the sound attenuation chamber 35 through the hose and the other part of the noise directly reaching the sound attenuation chamber 35 through the micro-perforated plate have different amplitudes to form the disturbance of the hose and weaken the amplitude of the sound so as to further achieve the sound attenuation effect, and the sound attenuation belt 32 is arranged on the front side 33 of the micro-perforated plate and the inner shell of the rear wall of the heat exchanger. And thirdly, the fan 37 is used for enhancing the heat convection effect. The soft band 36 reinforces the disturbance, attenuates the amplitude of sound to reduce noise, and is disposed outside the sound-deadening chamber.
And (3) performing function allocation, condensation and timely monitoring and processing of condensed water according to the functions of the tail end heat exchanger 20, as shown in fig. 7.
Firstly, function allocation and setting of a heat exchanger: the heat exchanger rear wall shell 29 is fixed on the clamping seat frame through the clamping seat, the distance between the heat exchanger rear wall shell 29 and the working device is proper, the length of a pipe section is saved, and the heat exchanger rear wall shell 29 and a wall body are kept at a certain distance for convenient heat dissipation. Then, two sections of pipe sections with the right diameter are connected to the water inlet of the heat exchange pipe 31 and the water outlet of the heat exchange pipe 31, and the water leakage state is determined.
A terminal parameter control system: the control center 44 is composed of a control monitor 19, a gravity detector 40, a humidity detector 41, a temperature detector 42, an air volume detector 43 and the like, and the control monitor 19 monitors and controls the changes of the film gravity, the temperature, the humidity, the air volume and the like on the surface of the heat exchange tube 31 timely according to signal monitoring and cooperative control, so as to process the condensation phenomenon of the tail end heat exchanger 20. When the surface temperature of the final heat exchanger 20 is lower than the dew point temperature of the indoor air, a phenomenon of condensate water precipitation occurs.
I, detecting the heat and humidity change in the indoor area of the house at the right moment by a humidity detector 41 and a temperature detector 42, sending command signals, adjusting the indoor air supply temperature difference at the right moment, regulating and controlling an air quantity detector 43 to increase the instantaneous air quantity, and sending the processed air into the house through a louver grid air outlet after silencing and static pressure processing; meanwhile, the fan 27 is arranged at the rear side of the heat exchange pipe 31 to strengthen the air convection heat exchange; the shutter is arranged on the front side of the heat exchange tube 31 and is provided with a grille for flexibly adjusting the size and the inclination angle of the air door so as to effectively control the air quantity and change the change of the outlet air direction and aim at cooperatively matching the air quantity regulation amplitude of the air quantity detector 43;
II, detecting the gravity change of the film absorbing material caused by water absorption according to the action of the gravity detector 40, and timely cooperating with the control center 44 to start the treatment of reducing the humidity and the temperature difference and increasing the anti-condensation phenomena such as air exhaust, moisture extraction and the like;
and III, starting the drying soft belt 47 to work while processing signals according to the control center 44, and drying the condensed water dropping into the water collecting tray. Wherein, the soft drying belt 47 is laid in the water collecting tray, the surface of the soft drying belt is provided with a zigzag convex-concave interval shape, the soft drying belt 47 is arranged right below the heat exchange pipe and internally provided with a heating wire and drying moisture. The connecting material 46 (a metallic material, like a wire) connects the flexible drying belt to the instrument chassis. The purpose is to facilitate 44. the control center performs the monitoring. In the heat exchange process, water vapor in the air meets the cold surface of the tail end heat exchanger 20 and forms condensed water through condensation, and is dripped into a water collecting tray at the bottom of the heat exchanger, so that moisture absorption and drying treatment are easy to carry out in time.
③ the gravity detector 40: when the surface of the middle pipe section of the transverse pipe has the dewing phenomenon due to the temperature difference, water drops on the hydrophilic film which is arranged outside the transverse pipe and clings to the pipe side, the gravity of the film changes, the gravity detector 40 detects the gravity change value and transmits the result to the automatic controller 19, and the valve K is opened12And the soft drying belt 47 is started to finish the drying process.
The function of the end heat exchanger 20 is adapted as shown in fig. 8, 9, 10 and 11:
the coil pipe (bent pipe) adopts a transverse circulation (circular flow in the horizontal direction), the surface heat transfer coefficient of the transverse circulation is 2 times that of the longitudinal circulation, and the heat exchange effect is better. Violently manage and go up water inlet pipeline section and adopt the deformation pipe material, one side lateral wall of deformation pipe adopts the lateral wall that the wave changes, and then can change the internal diameter of deformation pipe, specifically as shown in FIG. 11, the inner wall that the center was violently managed then adopts the form of internal thread upwards, adopts the pipeline type of two kinds so that carry out the heat transfer better. The fluid to be exchanged enters the heat exchange tube 31 through the water inlet of the heat exchange tube 31, and the fluid in the tube completes heat exchange through the transverse circulation mode and flows out of the water outlet.
Secondly, a coil is coiled in the heat exchanger and consists of a plurality of transverse pipes which are distributed in parallel, and the transverse pipe 48 at the inlet of the heat exchanger is a reducer pipe 49 shell. The pipe diameter of the upper side is changed, the pipe diameter of the lower side is unchanged, and as shown in fig. 9, the pipe wall of the upper side is distributed in a concave-convex curve, so that the pipe diameter at the position is switched between increasing and decreasing. When water flows through the reducer pipe 49, the speed of the water flow is changed due to pressure, and a vortex phenomenon or secondary circulation can occur, so that the temperature difference of the water flow inlet and outlet in the pipe is increased, and the heat exchange is enhanced. The pipe diameter of the lower side is unchanged, water flow in the pipe is smoother, the water accumulation phenomenon cannot occur, water for heat exchange cannot be left, and meanwhile, the heat exchange mode is also increased. The 'wing vortex type' generator 50 is distributed on the outer surface of the heat exchange tube 31.
And thirdly, enlarging the 'wing vortex type' generator. The fin-shaped vortex generator 50 distributed on the outer surface of the heat exchange tube 31 has the effect that when water flows through the fin-shaped vortex generator 50, the direction of partial water flow can be changed, and the vortex phenomenon is generated around the generator due to the uneven stress of water, so that the temperature difference of water inside and outside the tube is increased, and meanwhile, heat exchange is enhanced.
And fourthly, partially enlarging the heating wire in the heat exchange pipe 31. Electric heating wire 51 installs in the inside reducing department of tube, and rivers are when electric heating wire, and the electric heating wire of circular telegram can let the temperature rise to the temperature of the inside water of heat exchange tube 31 changes, strengthens the heat transfer, makes the heat transfer effect better.
The system of the invention can be suitable for refrigeration circulation in an extremely high temperature environment: under the high-temperature environment temperature (about 43 ℃), the heat pump air conditioner starts a common refrigeration mode and cannot perform normal refrigeration, and in order to ensure that the heat pump air conditioner can reliably run under the extreme high-temperature environment, a high-temperature refrigeration cycle is provided.
The method is suitable for heating circulation in an extremely low temperature environment: under the low-temperature environment temperature (about-10 to-15 ℃), the heat pump air conditioner starts a common heating mode and cannot normally heat, in order to ensure that the heat pump air conditioner can reliably run under the extreme low-temperature environment, a low-temperature environment heating cycle is provided, and the whole heating is timely detected and regulated according to the terminal temperature: and matching the mode I, the mode II and the mode III in a cooperative combination manner.
The indoor air purification circulation which is timely humidified by the wet film material 23 is adopted, the self-circulation of the flow of the cold (hot) medium of the system is adjusted according to the timely detection of the tail end and outdoor temperature and humidity signals, the multi-circulation function switching control and the self-circulation of the flow of the cold (hot) medium of the system, the condensation phenomenon of the surface of a heat exchange device at the tail end of an air conditioner and an air outlet can be effectively controlled and treated, the indoor temperature and humidity of a house are stable, and the air conditioning technical support is provided for improving the overall technical level of a heat pump cooling and heating air conditioning system. And performing mute and noise elimination treatment aiming at the function allocation of the tail end heat exchanger 20. Timely monitoring and processing of condensation and condensed water.
And (3) function allocation of the end heat exchanger 20: the coil pipe adopts a transverse circulation heat exchange mode. Secondly, a horizontal pipe at the inlet of the heat exchanger adopts a reducer 49 shell. The pipe diameter of the upper side is changed, and the pipe diameter of the lower side is unchanged. When water flows through the reducer pipe 49, the speed of the water flow is changed due to pressure, and a vortex phenomenon or secondary circulation can occur, so that the temperature difference of the water flow inlet and outlet in the pipe is increased, and the heat exchange is enhanced. The pipe diameter of the lower side is unchanged, water flow in the pipe is smoother, the water accumulation phenomenon cannot occur, water for heat exchange cannot be left, and the heat exchange effect is also improved. And thirdly, arranging a wing vortex generator.
Aiming at the adjustment of the silencing and silencing functions of the heat exchanger 20 at the tail end of the air conditioner, an inner shell of a 'convex cavity' on the rear wall of the heat exchanger 20 at the tail end is arranged, the inner wall of the inner shell is pasted with a 'pyramid-shaped' sound absorption material which has the sound absorption effect and is made of porous fibers, when sound waves transmitted from the end of the fan 28 enter from the tip of the 'pyramid-shaped' sound absorption material, due to the gradual transition property of the sound absorption band 32, the sound waves are transmitted into the 'pyramid-shaped' sound absorption band 32 and are efficiently absorbed, meanwhile, a grid which is arranged on the front side of the heat exchange tube 31 and flexibly adjusts the size and the inclination angle of an air door is adopted, so that the air quantity is effectively controlled, the wind direction change of an outlet is changed, and the silencing and silencing effects are achieved. Not only can realize the direct control to the terminal effect of heat supply, cooling, can also play dirt-proof effect.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the content of the embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and any changes and modifications made are within the protective scope of the present invention.

Claims (4)

1. A cooperative control and synchronous multi-cycle heat pump type air conditioner composite system is characterized in that: comprises that
A refrigerating device: comprises a compressor, a four-way reversing valve, a condenser I and an electromagnetic valve K which are sequentially communicated through a channel2Ethylene glycol solution storage tank and main path throttle valve
Figure DEST_PATH_IMAGE002
The condensation medium in the first evaporator reflows to the compressor to form a circulation main path; an electromagnetic valve K connected in sequence is also arranged between the first condenser and the first evaporator6Auxiliary throttle valve
Figure DEST_PATH_IMAGE004
Injector and solenoid valve K7Forming a circulating auxiliary road; the first condenser is also communicated with an organic salt solution storage tank;
the refrigerant is compressed by the compressor and sent to the condenser I, and then changed into liquid refrigerant which is sent to the condenser I through the electromagnetic valve
Figure DEST_PATH_IMAGE006
The ethylene glycol liquid storage tank is cooled and passes through the main path throttle valve
Figure DEST_PATH_IMAGE002A
Flow splitting after throttling and pressure reduction: one path enters the first evaporator along the main circulation path, and after evaporation and heat absorption, the other path returns to the compressor for continuous compression; the other path is along the circulation auxiliary path electromagnetic valve
Figure DEST_PATH_IMAGE008
Auxiliary throttle valve
Figure DEST_PATH_IMAGE004A
Electromagnetic valve
Figure DEST_PATH_IMAGE010
Then, the gas enters a main circulation path after being pressurized in the ejector;
a heating device: comprises a heat exchanger communicated with a circulating channel and an electromagnetic valve K communicated with the heat exchanger4Connected cavitation generator, refrigerant water in the heat exchanger passes through an electromagnetic valve K4The heat energy is released and flows back to the heat exchanger;
the heating device also comprises a compressor, a four-way reversing valve, a second condenser and a main path throttle valve which are communicated through a circulating channel
Figure DEST_PATH_IMAGE002AA
、K1And the second evaporator, the gaseous refrigerant is compressed by the compressor and enters the second condenser, exchanges heat with refrigerant water from the tail end and is condensed into liquid refrigerant, and the liquid refrigerant passes through the main path throttle valve
Figure DEST_PATH_IMAGE002AAA
Throttling, reducing pressure, entering an evaporator II, evaporating, absorbing heat, changing into a gaseous refrigerant, and returning to the compressor for continuous compression;
the micro humidifier is arranged on the side of the heat exchanger and comprises a circulating electronic water pump, a water tank, a wet film material and a water distributor, the circulating electronic water pump sends water in the water tank to the water distributor, the wet film material washes dry air entering the micro humidifier, the water distributor humidifies the air, the wet film material purifies the air, and the humid and clean air is conveyed out through a fan device.
2. A cooperative control, synchronous multi-cycle heat pump type air conditioning hybrid system as claimed in claim 1, wherein: the condenser II and the evaporator I are the same device; the evaporator II and the condenser I are the same device.
3. A cooperative control, synchronous multi-cycle heat pump type air conditioning hybrid system as claimed in claim 1, wherein: the outer wall of the heat exchanger is provided with a silencing mechanism, the outer wall of the heat exchanger comprises an inner shell and an outer shell, a cavity is arranged between the inner shell and the outer shell, one side of the inner shell, facing the outer shell, is provided with a layered silencing belt and a micro-perforated plate in sequence, and a silencing cavity is formed between the outer shell and the micro-perforated plate.
4. A cooperative control, synchronous multi-cycle heat pump type air conditioning hybrid system as claimed in claim 1, wherein: the pipe section of the water inlet on the transverse pipe adopts a section-changing pipe, and the inner wall of the central transverse pipe adopts an upward internal thread form.
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CN113266900B (en) * 2021-05-20 2022-05-27 中原工学院 Vortex ring air distribution type synchronous multifunctional circulating heat pump air conditioning system
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