CN110986204A - Central air-conditioning system for cooling and dehumidifying of variable-frequency multi-connected floor heating air duct machine - Google Patents
Central air-conditioning system for cooling and dehumidifying of variable-frequency multi-connected floor heating air duct machine Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 129
- 238000001816 cooling Methods 0.000 title claims abstract description 88
- 238000004378 air conditioning Methods 0.000 title claims abstract description 22
- 239000000523 sample Substances 0.000 claims abstract description 40
- 230000006835 compression Effects 0.000 claims abstract description 23
- 238000007906 compression Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 48
- 238000007791 dehumidification Methods 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 11
- 239000003507 refrigerant Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
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- 238000011161 development Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
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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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a central air-conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine, which is used for solving the problems that the single air-conditioning unit has low power, cannot meet the individual requirement of the temperature of a single room, has unstable working state, cannot well solve the coexistence of multiple units when being matched with a floor direct-expansion refrigerating and heating system and the like. The device comprises a compression device, a heat exchange device, a throttling device and a cooling and heating device, wherein the cooling and heating device comprises a cooling and dehumidifying unit and a heating unit, the compression device, the heat exchange device and the throttling device are connected with a main control board, the main control board is connected with a sub-controller, and the sub-controller is connected with a temperature sensing probe I, a humidity sensing probe and a temperature sensing probe II. The invention can provide different energy supplies according to different requirements of a single room, one host can meet the requirements of heating and cooling of a plurality of rooms simultaneously, and the energy supply is met, thus the energy-saving and environment-friendly effects are achieved.
Description
Technical Field
The invention relates to the technical field of indoor refrigeration and heating, in particular to a central air-conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine.
Background
At present, with the rapid development of technological innovation and manufacturing technology, a digital scroll compressor and a two-stage compression compressor are introduced in the field of heat pump compressors, so that a heat pump system can stably operate at an outdoor temperature of below-30 ℃, has high operation energy efficiency ratio and operation stability, and opens up a new way for the use of a wind source heat pump in the field of heating. In the patents with application numbers ZL 200820071027. x, ZL201010502398.0, ZL201220275353.9, ZL201220275358.1 and ZL200820071026.5, intensive research is carried out on phase change radiation heating and the like, and although corresponding system results are obtained, cooling and heating operation is energy-saving and stable, an outdoor unit is an air conditioning system with fixed frequency, single machine power is low, and when heating and cooling are to be achieved in a room with a plurality of units, several air conditioners are required to be coordinated together to complete the heating and cooling. With the changing of the demand and the changing of the style and appearance requirements of buildings, owners or building units do not allow a plurality of outdoor units to be hung on the outer vertical surfaces, and the demand can be completely solved by adopting a variable-frequency multi-connected large-scale host system. The traditional fixed-frequency heat pump host cannot meet individual requirements of a plurality of spaces, and the direct expansion cooling or heating of the floor cannot be divided into a plurality of units, so that the individual requirements of single room for comfortable temperature cannot be met; the large-scale ducted air conditioner system has the disadvantages of complex pipeline installation and high installation cost, the air supply or return air volume is greatly influenced when the conveying distance is longer, the cold quantity or heat quantity of the heat exchanger connected with the main machine cannot be discharged in time, the bad phenomena such as icing and the like are caused, and the working state of the system is unstable. At present, a dehumidification unit matched with a floor phase-change radiation refrigeration and heating system is not mature, and the dehumidification unit is difficult to realize at present if a radiation heating, cooling and heat exchange system of a floor or a wallboard needs to be supplied with a circulating medium and is divided into a plurality of units for respective supply. The variable-frequency air source heat pump cold and hot air unit is mature, and a variable-frequency multi-connected system which is suitable for floor direct expansion heating and cooling needs to be developed urgently. Any current unit or system cannot well solve the problems of coexistence of multiple units and the like when the unit or system is matched with a floor direct-expansion refrigerating and heating system.
Disclosure of Invention
The invention provides a central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine, aiming at the problems that the single air conditioner has smaller power, cannot meet the individual requirement of the temperature of a single room, has unstable system working state, cannot well solve the coexistence of multiple units when being matched with a floor direct-expansion refrigeration and heating system and the like, and can provide different energy supplies according to different requirements of the single room, one host can meet the requirement of heating and cooling of multiple rooms simultaneously, and the central air conditioning system can meet the energy supply, save energy and protect environment.
In order to solve the technical problems, the invention adopts the following technical scheme: a central air conditioning system for cooling and dehumidifying of a frequency conversion multi-joint floor heating air duct machine comprises a compression device, a heat exchange device, a throttling device and a cooling and heating device, wherein the compression device, the heat exchange device, the throttling device and the cooling and heating device are sequentially connected in series, the compression device, the heat exchange device and the throttling device are all arranged in an outdoor host machine, the cooling and heating device is arranged indoors, the cooling and heating device comprises a cooling and dehumidifying unit and a heating unit, the cooling and dehumidifying unit and the heating unit are arranged in series through an electronic expansion valve III, the cooling and dehumidifying unit is connected with the throttling device, the heating unit is connected with the compression device, the heat exchange device and the throttling device are all connected with a controller, and the controller is connected with a temperature sensing probe I for detecting the indoor temperature, a humidity sensing probe for detecting the indoor humidity and a temperature sensing probe II for detecting the floor temperature, and the electronic expansion valve III is connected with the controller.
The compression device comprises a compressor, the compressor is respectively connected with a four-way valve and a liquid storage tank, the four-way valve is connected with the liquid storage tank, the four-way valve is connected with a heat exchange device, the four-way valve is connected with a heating unit through a liquid supply pipe, and the compressor and the four-way valve are both connected with a controller.
The heat exchange device comprises a heat exchanger I and a fan I matched with the heat exchanger I, the fan I is connected with the controller, and the heat exchanger I is respectively connected with the four-way valve and the throttling device; the throttling device comprises an electronic expansion valve I, the electronic expansion valve I is connected with the heat exchanger I, the electronic expansion valve I is connected with the cooling and dehumidifying unit through a liquid return pipe, and the electronic expansion valve I is connected with the controller.
The cooling and dehumidifying unit comprises an indoor air duct machine, a heat exchanger II and a fan II matched with the heat exchanger II are arranged in the indoor air duct machine, the fan II is connected with the controller, and the heat exchanger II is respectively connected with the liquid return pipe and the heating unit; the front part, the middle part and the rear part of the fluorine pipe pipeline at one end of the heat exchanger II connected with the liquid return pipe are respectively provided with a temperature sensing probe III, and the temperature sensing probes III are connected with the controller.
The controller comprises a main control panel and a branch controller, the branch controller is connected with the main control panel, the main control panel is installed on the inner side of a shell of an outdoor host, the branch controller is installed on the inner side of the shell of an indoor air duct machine, the compressor, the four-way valve, the fan I and the electronic expansion valve I are all connected with the main control panel, and the temperature sensing probe I, the humidity sensing probe, the temperature sensing probe II, the temperature sensing probe III, the fan II and the electronic expansion valve III are all connected with the branch controller.
The heating unit is connected with the liquid supply pipe through a three-way pipe II and connected with the heat exchanger II through a three-way pipe I; a main trunk of the three-way pipe I is connected with the heat exchanger II through a connecting pipe, one branch of the three-way pipe I is connected with the heating unit, and the other branch of the three-way pipe I is connected with an inlet of the one-way valve II; the main part of the three-way pipe II is connected with the liquid supply pipe, one branch of the three-way pipe II is connected with the heating unit through the one-way valve I, and the other branch of the three-way pipe II is connected with the outlet of the one-way valve II.
A filter is arranged between the four-way valve and the liquid supply pipe, a stop valve I is arranged on the liquid return pipe, a stop valve II is arranged on the liquid supply pipe, and the stop valve II is positioned between the filter and the heating unit; an electronic expansion valve II is arranged between the liquid return pipe and the heat exchanger II and is connected with the sub-controllers; the heat preservation cotton is wrapped on the outer portions of pipelines connected among the heat exchanger I, the compressor, the electronic expansion valve I, the stop valve I and the stop valve II and the outer portions of the electronic expansion valve I, the electronic expansion valve II and the electronic expansion valve III.
The heating unit comprises an underground coil pipe, wherein the inlet end of the underground coil pipe is connected with one branch of the three-way pipe II, and the outlet end of the underground coil pipe is connected with one branch of the three-way pipe I.
The cooling and heating device is at least provided with two sets of and in proper order parallel connection, and every group cooling and heating device includes cooling dehumidification unit and heating unit, cooling dehumidification unit and heating unit series connection, the heating unit buries the coil pipe including ground, and an entrance point is connected with a branch road of three-way pipe II, exit end is connected with a branch road of three-way pipe I.
The cooling and heating device is at least provided with two sets and is parallel connection in proper order, and every group cooling and heating device includes cooling dehumidification unit and heating unit, cooling dehumidification unit and heating unit series connection, the heating unit includes 2 and buries coil pipe, and parallel connection, 2 bury the entrance point of coil pipe and all be connected with a branch road of three-way pipe II, the exit end all is connected with a branch road of three-way pipe I.
The invention adopting the structure can supply circulating medium to the working medium direct-supply radiant heating and cooling heat exchange system of the floor or the wall plate, and can respectively supply heat, refrigerate, dehumidify and the like to a plurality of units; the system can provide different energy supplies according to different requirements of a single room, and one host can meet the requirements of simultaneously heating and cooling a plurality of rooms; the invention has the advantages of convenient installation and use, stable working performance, small input power, high energy efficiency ratio, energy conservation, environmental protection, low noise and strong practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic structural diagram of example 2 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 3 of the present invention.
In the figure, 1 is an outdoor host machine, 2 is a heat exchanger I, 4 is a compressor, 5 is a four-way valve, 6 is a main control panel, 8 is a fan I, 9 is a liquid return pipe, 10 is a liquid supply pipe, an electronic expansion valve II 11, electronic expansion valves III 12 and 16 are branch controllers, 17 is an indoor air pipe machine, 18 is a heat exchanger II, 19 is a fan II, 22 is a temperature sensing probe II, 23 is a check valve I, 24 is a check valve II, 25 is a temperature sensing probe I, 26 is a humidity sensing probe, 27 is a temperature sensing probe III, 40 is a buried coil pipe, 61 is a liquid storage tank, 62 is a filter, 63 is a stop valve I, 64 is a stop valve II, 70 is an electronic expansion valve I, 94 is a three-way pipe I, and 95 is a three-way pipe II.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
As shown in figure 1, the invention provides a central air conditioning system for cooling and dehumidifying of a frequency conversion multi-connected floor heating ducted air conditioner, which comprises a compression device, a heat exchange device, a throttling device and a cooling and heating device, wherein the compression device, the heat exchange device and the throttling device are all arranged in an outdoor host 1, the cooling and heating device is arranged indoors, the compression device, the heat exchange device, the throttling device and the cooling and heating device are sequentially connected in series, the cooling and heating device comprises a cooling and dehumidifying unit and a heating unit, the cooling and dehumidifying unit and the heating unit are arranged in series through an electronic expansion valve III 12, the cooling and dehumidifying unit is connected with the throttling device, the heating unit is connected with the compression device, so that the heating or cooling treatment of floors by a working medium direct supply floor (wall plate, floor) heat exchange system is realized, and the ducted air conditioner filters, dehumidifies and dehumidifies indoor circulating air, Cooling, heating and the like, and the cooling, heating and dehumidifying requirements of the indoor system are met. The electronic expansion valve III 12 is connected with the controller, the controller 12 controls the electronic expansion valve III 12 to work, and the flow direction and the flow rate of liquid are controlled, so that the system can automatically adjust energy supply, and the stable operation of the whole system is ensured.
The compression device, the heat exchange device and the throttling device are all connected with a controller, the controller is connected with a temperature sensing probe I25 for detecting indoor temperature, a humidity sensing probe 26 for detecting indoor humidity and a temperature sensing probe II 22 for detecting floor temperature, concretely, the controller comprises a main control board 6 and a sub-controller 16, the sub-controller 16 is connected with the main control board 6, the main control board 6 is installed on the inner side of the shell of the outdoor host 1, the compression device, the heat exchange device and the throttling device are all connected with the main control board 6, the temperature sensing probe I22, the temperature sensing probe II 25 and the humidity sensing probe 26 are all connected with the sub-controller 16, the sub-controller 16 is used for receiving information detected by the temperature sensing probe I22, the temperature sensing probe II 25 and the humidity sensing probe 26, and the main control board 6 is used for controlling the working states of the compression device, the heat exchange device and the throttling device. The sub-controller 16 is connected with the control device in a wired or wireless mode, the sub-controller 16 can be used for controlling indoor temperature parameters, a startup and shutdown state, function selection and the like, meanwhile, the sub-controller 16 can also feed back information detected by the temperature sensing probe I22, the temperature sensing probe II 25 and the humidity sensing probe 26 to the control device for a user to check, the user can also send an instruction to the sub-controller 16 through the control device to complete setting of related parameters, meanwhile, the sub-controller 16 transmits the information to the main control board 6 after receiving the instruction, and the main control board 6 controls the compression device, the heat exchange device and the throttling device to work, so that mutual conversion of refrigeration and heating and automatic adjustment or change of the supply state of energy are realized. The inside of the shell of the outdoor host 1 is also provided with a power supply, the compression device, the heat exchange device, the throttling device, the main control panel 6 and the sub-controller 16 are all connected with the power supply, and the power supply supplies power to the compression device, the heat exchange device, the throttling device, the main control panel 6 and the sub-controller 16 in the power-on state.
The compression device comprises a compressor 4, the compressor 4 is respectively connected with a four-way valve 5 and a liquid storage tank 61, the four-way valve 5 is connected with the liquid storage tank 61, the compressor 4 and the four-way valve 5 are both connected with a main control panel 6, and the main control panel 6 controls the compressor 4 and the four-way valve 5 to work, so that the interconversion between the refrigeration and the heating is realized. The four-way valve 5 is connected with a heat exchange device, the four-way valve 5 is connected with a heating unit through a liquid supply pipe 10, specifically, the heat exchange device comprises a heat exchanger I2 and a fan I8 matched with the heat exchanger I2, the fan I8 is connected with a main control panel 6, and the fan I8 is favorable for promoting the heat exchange process of the heat exchanger I2, so that the indoor air continuously circularly flows to achieve the purpose of heating. The heat exchanger I2 is connected with a four-way valve 5, so that the interconversion between refrigeration and heating is realized; the liquid storage tank 61 is used for storing the condensate of the heat exchanger I2, and the condensate is prevented from being accumulated in the heat exchanger I2 too much to reduce the heat transfer area and influence the heat transfer effect of the heat exchanger I2. The heat exchanger I2 is connected with a throttling device, the throttling device comprises an electronic expansion valve I70, the electronic expansion valve I70 is connected with the heat exchanger I2, the electronic expansion valve I70 is connected with a cooling and dehumidifying unit through a liquid return pipe 9, the electronic expansion valve I70 is connected with a main control board 6, the electronic expansion valve I70 can timely adjust the flow of refrigerant in the heat exchanger I2 under the control of the main control board 6, and the target superheat degree is controlled, so that the compressor 4 is prevented from being damaged along with liquid impact when the compressor 4 sucks air, and the service life of the compressor 4 and the stable operation of the whole system are ensured.
The cooling and dehumidifying unit includes an indoor air duct machine 17, and the sub-controller 16 is installed inside a casing of the indoor air duct machine 17. The indoor air pipe machine 17 is internally provided with a heat exchanger II 18 and a fan II 19 matched with the heat exchanger II 18, the fan II 19 is connected with the branch controller 16, and the fan II 19 is favorable for promoting the heat exchange process of the heat exchanger II 18, so that indoor air continuously circulates and flows, and the purpose of heating is achieved. And the heat exchanger II 18 is respectively connected with the liquid return pipe 9 and the heating unit to realize interconversion of refrigeration or heating. Preferably, temperature sensing probes iii 27 are respectively disposed at the front portion, the middle portion and the rear portion of the fluorine pipe pipeline at one end of the heat exchanger ii 18 connected to the liquid return pipe 9, the temperature sensing probes iii 27 are connected to the sub-controller 16, the temperature sensing probes iii 27 are used for sensing the temperature of the refrigerant inside the fluorine pipe of the heat exchanger ii 18 and transmitting the detection information to the sub-controller 16, and the sub-controller 16 adjusts and sets the relevant parameters according to the detected temperature information.
The heating unit is connected with the liquid supply pipe 10 through a three-way pipe II 95 and connected with the heat exchanger II 18 through a three-way pipe I94, and specifically, the heating unit comprises a buried coil pipe 40, the inlet end of the buried coil pipe 40 is connected with one branch of the three-way pipe II 95, and the outlet end of the buried coil pipe is connected with one branch of the three-way pipe I94, so that heating liquid can uniformly and stably flow in a circulating mode, and uniform floor heating is achieved. Specifically, the main trunk of the three-way pipe I94 is connected with the heat exchanger II 18 through a connecting pipe, one branch of the three-way pipe I94 is connected with the heating unit, and the other branch of the three-way pipe I94 is connected with the inlet of the one-way valve II 24; the main part of three-way pipe II 95 is connected with liquid feed pipe 10, and a branch road of three-way pipe II 95 is connected with the heating unit through check valve I23, another branch road and the exit linkage of check valve II 24, and check valve I23 and check valve II 24 all are used for controlling the liquid flow to, make liquid can evenly stably circulate to it is even to realize floor heating.
A filter 62 is arranged between the four-way valve 5 and the liquid supply pipe 10, and the filter 62 can filter impurities in a pipeline of the refrigeration system, and can be used for storing and supplying liquid refrigerant in the refrigeration system, and compensating and adjusting the profit and loss of the liquid refrigerant in time. The liquid return pipe 9 is provided with a stop valve I63, the liquid supply pipe 10 is provided with a stop valve II 64, the stop valve II 64 is positioned between the filter 62 and the heating unit, and the stop valve I63 and the stop valve II 64 are respectively used for controlling the flow direction of refrigerant in the outdoor unit so as to prevent the refrigerant from flowing back or running off. Preferably, an electronic expansion valve II 11 is arranged between the liquid return pipe 9 and the heat exchanger II 18, the electronic expansion valve II 11 is connected with the sub-controller 16, the electronic expansion valve II 11 is used as a control switch to control the liquid flow, and the sub-controller 16 controls the execution, so that the automatic adjustment of energy supply is realized, and the stable operation of the whole system is ensured. Preferably, the heat preservation cotton is wrapped on the outer portions of pipelines connected among the heat exchanger I2, the compressor 4, the electronic expansion valve I70, the stop valve I63 and the stop valve II 64 and the outer portions of the electronic expansion valve I70, the electronic expansion valve II 11 and the electronic expansion valve III 12, the heat preservation cotton is used for preventing temperature loss and aging of a copper pipe, if the heat preservation cotton falls off in a large quantity, the copper pipe is exposed outside for a long time, oxidation blackening is caused, the service life is prolonged, and meanwhile the using effect of the air conditioner is influenced.
Example 2
The invention provides a central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine, which is different from the embodiment 1 in that at least two groups of cooling and heating devices are arranged and connected in parallel in sequence, and each group of cooling and heating devices can be respectively arranged in a plurality of rooms to meet the individual temperature requirement of a single room, as shown in fig. 2. Every group cooling heating device includes cooling dehumidification unit and heating unit, and cooling dehumidification unit and heating unit series connection, the heating unit buries coil pipe 40 including ground, and buries coil pipe 40 respectively and be connected with feed pipe 10 and heat exchanger II 18 respectively through a plurality of three-way pipes to realize indoor heating, refrigeration, dehumidification etc. satisfy user's user demand.
Other structures and operation principles are the same as those of embodiment 1, and are not described herein again.
Example 3
The invention provides a central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine, which is different from the embodiment 1 and the embodiment 2 in that at least two groups of cooling and heating devices are arranged and sequentially connected in parallel, each group of cooling and heating devices comprises a cooling and dehumidifying unit and a heating unit, the cooling and dehumidifying units and the heating unit are connected in series, and each group of cooling and heating devices can be respectively arranged in a plurality of rooms to meet the individual temperature requirement of the single room, as shown in fig. 3. Compared with the embodiment 2, the heating units in the embodiment comprise 2 underground coil pipes 40 which are sequentially connected in parallel, connection between the underground coil pipes 40 and the heat exchanger II 18 is achieved through a plurality of three-way pipes, so that indoor heating, refrigeration, dehumidification and the like are achieved, and each group of heating units effectively increase the heating area and meet the use requirements of users by arranging 2 underground coil pipes 40.
Other structures and operation principles are the same as those of embodiment 1, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a central air conditioning system that frequency conversion multiplex floor heating tuber pipe machine cooling dehumidification which characterized in that: the device comprises a compression device, a heat exchange device, a throttling device and a cooling and heating device, wherein the compression device, the heat exchange device, the throttling device and the cooling and heating device are sequentially connected in series, the compression device, the heat exchange device and the throttling device are all arranged in an outdoor host (1), the cooling and heating device is arranged indoors, the cooling and heating device comprises a cooling and dehumidifying unit and a heating unit, the cooling and dehumidifying unit and the heating unit are arranged in series through an electronic expansion valve III (12), the cooling and dehumidifying unit is connected with the throttling device, the heating unit is connected with the compression device, the heat exchange device and the throttling device are all connected with a controller, the controller is connected with a temperature sensing probe I (25) for detecting the indoor temperature, a humidity sensing probe (26) for detecting the indoor humidity and a temperature sensing probe II (22) for detecting the floor temperature, and the electronic expansion valve III (12) is connected with the controller.
2. The central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine as claimed in claim 1, wherein: the compressor comprises a compressor (4), the compressor (4) is respectively connected with a four-way valve (5) and a liquid storage tank (61), the four-way valve (5) is connected with the liquid storage tank (61), the four-way valve (5) is connected with a heat exchange device, the four-way valve (5) is connected with a heating unit through a liquid supply pipe (10), and the compressor (4) and the four-way valve (5) are both connected with a controller.
3. The central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine as claimed in claim 2, wherein: the heat exchange device comprises a heat exchanger I (2) and a fan I (8) matched with the heat exchanger I (2), the fan I (8) is connected with the controller, and the heat exchanger I (2) is respectively connected with a four-way valve (5) and a throttling device; the throttling device comprises an electronic expansion valve I (70), the electronic expansion valve I (70) is connected with the heat exchanger I (2), the electronic expansion valve I (70) is connected with the cooling and dehumidifying unit through a liquid return pipe (9), and the electronic expansion valve I (70) is connected with the controller.
4. The central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine as claimed in claim 3, wherein: the cooling and dehumidifying unit comprises an indoor air duct machine (17), a heat exchanger II (18) and a fan II (19) matched with the heat exchanger II (18) are arranged in the indoor air duct machine (17), the fan II (19) is connected with the controller, and the heat exchanger II (18) is respectively connected with the liquid return pipe (9) and the heating unit; the front part, the middle part and the rear part of the fluorine pipe pipeline at one end of the heat exchanger II (18) connected with the liquid return pipe (9) are respectively provided with a temperature sensing probe III (27), and the temperature sensing probes III (27) are connected with the controller.
5. The central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine as claimed in claim 4, wherein: the controller includes main control panel (6) and branch controller (16), and divides controller (16) to be connected with main control panel (6), and main control panel (6) are installed in the casing inboard of outdoor host computer (1), divide controller (16) to install in the casing inboard of indoor tuber pipe machine (17), compressor (4), cross valve (5), fan I (8) and electronic expansion valve I (70) all are connected with main control panel (6), and temperature sensing probe I (25), humidity inductive probe (26), temperature sensing probe II (22), temperature sensing probe III (27), fan II (19) and electronic expansion valve III (12) all are connected with branch controller (16).
6. The central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine as claimed in claim 5, wherein: the heating unit is connected with the liquid supply pipe (10) through a three-way pipe II (95) and connected with the heat exchanger II (18) through a three-way pipe I (94); a main trunk of the three-way pipe I (94) is connected with the heat exchanger II (18) through a connecting pipe, one branch of the three-way pipe I (94) is connected with the heating unit, and the other branch of the three-way pipe I (94) is connected with an inlet of the one-way valve II (24); the main part of the three-way pipe II (95) is connected with the liquid supply pipe (10), one branch of the three-way pipe II (95) is connected with the heating unit through the one-way valve I (23), and the other branch is connected with the outlet of the one-way valve II (24).
7. The central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine as claimed in claim 6, wherein: a filter (62) is arranged between the four-way valve (5) and the liquid supply pipe (10), a stop valve I (63) is arranged on the liquid return pipe (9), a stop valve II (64) is arranged on the liquid supply pipe (10), and the stop valve II (64) is positioned between the filter (62) and the heating unit; an electronic expansion valve II (11) is arranged between the liquid return pipe (9) and the heat exchanger II (18), and the electronic expansion valve II (11) is connected with the branch controller (16); the heat-preservation cotton is wrapped outside the pipelines connected among the heat exchanger I (2), the compressor (4), the electronic expansion valve I (70), the stop valve I (63) and the stop valve II (64) and outside the electronic expansion valve I (70), the electronic expansion valve II (11) and the electronic expansion valve III (12).
8. The central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine as claimed in claim 7, wherein: the heating unit comprises an underground coil pipe (40), wherein the inlet end of the underground coil pipe (40) is connected with one branch of the three-way pipe II (95), and the outlet end of the underground coil pipe is connected with one branch of the three-way pipe I (94).
9. The central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine as claimed in claim 7, wherein: the cooling and heating device is at least provided with two sets of and in turn parallel connection, and every group cooling and heating device includes cooling dehumidification unit and heating unit, cooling dehumidification unit and heating unit series connection, the heating unit buries coil pipe (40) including ground, and an entrance point is connected with a branch road of three-way pipe II (95), the exit end is connected with a branch road of three-way pipe I (94).
10. The central air conditioning system for cooling and dehumidifying of a variable-frequency multi-gang floor heating air duct machine as claimed in claim 7, wherein: the cooling and heating device is at least provided with two sets and in proper order parallel connection, and every group cooling and heating device includes cooling dehumidification unit and heating unit, cooling dehumidification unit and heating unit series connection, the heating unit includes 2 and buries coil pipe (40) and parallel connection, 2 bury the entrance point of coil pipe (40) and all be connected with a branch road of three-way pipe II (95), the exit end all is connected with a branch road of three-way pipe I (94).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911304863.7A CN110986204A (en) | 2019-12-17 | 2019-12-17 | Central air-conditioning system for cooling and dehumidifying of variable-frequency multi-connected floor heating air duct machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911304863.7A CN110986204A (en) | 2019-12-17 | 2019-12-17 | Central air-conditioning system for cooling and dehumidifying of variable-frequency multi-connected floor heating air duct machine |
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| CN110986204A true CN110986204A (en) | 2020-04-10 |
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| CN201911304863.7A Pending CN110986204A (en) | 2019-12-17 | 2019-12-17 | Central air-conditioning system for cooling and dehumidifying of variable-frequency multi-connected floor heating air duct machine |
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