CN103912947A - Hot pump system for fan coil and heat-recovery fresh-air air conditioning unit - Google Patents
Hot pump system for fan coil and heat-recovery fresh-air air conditioning unit Download PDFInfo
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- CN103912947A CN103912947A CN201410156903.9A CN201410156903A CN103912947A CN 103912947 A CN103912947 A CN 103912947A CN 201410156903 A CN201410156903 A CN 201410156903A CN 103912947 A CN103912947 A CN 103912947A
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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]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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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]
- Y02B30/56—Heat recovery units
Abstract
The invention discloses a hot pump system for a fan coil and a heat-recovery fresh-air air conditioning unit. When processing heat of fresh air and exhaust air in a recovery chamber, the hot pump system provides an air conditioning cold and heat source for an indoor fan coil system; the fan coil and the heat-recovery fresh-air air conditioning unit share one hot pump system, so that the number of hot pump units is reduced, the hot pump units can be placed on roofs or outdoors, occupied area and investment cost are reduced, system maintenance and operation are simple, unit operation efficiency is high, and operation cost is low.
Description
Technical field
The invention belongs to air conditioner refrigerating field, being particularly related to air-conditioning system provides the heat pump of Cooling and Heat Source.
Background technology
At present, the fresh air handining unit with heat-recovering function adopts thermal wheel to reclaim the heat energy in indoor exhaust wind conventionally, heat exchange efficiency is low, between air draft and new wind, there is infiltration and contact, new wind is polluted, unhygienic, in addition, this class air-conditioning unit does not possess Cooling and Heat Source, increase heat transmission equipment, provides Cooling and Heat Source by outside.For addressing this problem, there is inventor to invent and utilize heat pump to reclaim the fresh air handining unit of air draft heat energy, this heat pump is only for fresh air handining unit provides Cooling and Heat Source, and the required Cooling and Heat Source of air conditioning terminal such as indoor fan coil also need separately to establish a set of heat pump, therefore adopted two to overlap independently heat pump, equipment is many, and floor space is large, invests also large.
Summary of the invention
The object of the present invention is to provide a kind of compact conformation, reduce floor space, hygiene, fully energy-conservation, the heat pump that indoor fan coil air conditioner system and heat recovery fresh air conditioning group are shared.
Solution of the present invention is: formed indoor air-conditioning system by fan coil and heat recovery fresh air conditioning group, heat recovery fresh air conditioning group is made up of new bellows, air exhaust box, heat pump, power distribution control system.New bellows are made up of fresh wind port, filter, pressure fan, air-cooled evaporimeter, reheater, air outlet, additional function section.Air exhaust box is made up of air inlet, fresh wind port, filter, air cooled condenser, exhaust blower, exhaust outlet, additional function section.Heat pump is made up of compressor, air cooled condenser, water heater, expansion throttling device, air-cooled evaporimeter, reheater, water-cooled evaporimeter, servicing unit, refrigerant circulation pipe, cold-producing medium.Power distribution control system is made up of controller switching equipment and automatic control equipment.
In the time that equipment moves, outdoor new wind is sucked in new bellows by pressure fan, and through cooling (summer) or the heating (winter) of the air-cooled evaporimeter of heat pump, air is processed to the parameter of setting, delivers to each air conditioning area by supply air system.Indoor exhaust wind and outdoor new wind are sucked air exhaust box by exhaust blower, through the heating (summer) of heat pump air cooled condenser or after cooling (winter) outside discharge chamber.Meanwhile, water-cooled evaporimeter provides air conditioning water (summer) and hot water (winter) for indoor fan coil pipe.
When heat pump is worked summer, because indoor air temperature is lower than outdoor, utilize the air-cooled condenser of heat pump in indoor exhaust wind and the cooling air exhaust box of outdoor new wind, the cold device that is condensed absorbs.In new bellows, outdoor new wind is delivered to air-conditioned room after being lowered the temperature by the air-cooled evaporator cools of heat pump.Like this, by the kind of refrigeration cycle of heat pump, recycled the cold in indoor exhaust wind.
When heat pump is worked winter, in air exhaust box, the air cooled condenser of heat pump has converted evaporimeter to, because indoor air temperature is than outdoor height, utilizes the evaporimeter of heat pump in indoor exhaust wind and outdoor new wind heating air exhaust box, and heat is absorbed by evaporimeter.In new bellows, the air-cooled evaporimeter of heat pump has converted condenser to, and outdoor new wind is condensed after device heat temperature raising and delivers to air-conditioned room.Like this, by the circulation that heats of refrigeration system, recycled the heat in indoor exhaust wind.
Heat pump is in the time providing Cooling and Heat Source for heat recovery fresh air conditioning group, and also, for the air conditioning terminals such as indoor fan coil pipe provide air conditioning water, hot water, both share a set of heat pump, and compact conformation reduces and accounts for floor area and investment.
The controller switching equipment of power distribution control system provides power supply for heat pump, pressure fan, exhaust blower, electronic air quantity regulating tuyere, automatic control equipment, automatic control equipment is according to the variation of indoor-outdoor air parameter, automatically regulate the running status of refrigeration system, pressure fan, exhaust blower, electronic air quantity regulating tuyere, guarantee the efficient and stable operation of air-conditioning unit.
Accompanying drawing explanation
Fig. 1 is Contiuum type heat recovery fresh air conditioning set constructor figure
Fig. 2 is heat pump figure (1)
Fig. 3 is heat pump figure (2)
Fig. 4 is heat pump figure (3)
Fig. 5 is heat pump figure (4)
Fig. 6 is heat pump figure (5)
Fig. 7 is heat pump figure (6)
Fig. 8 is four control multiple heat pump figure
Fig. 9 is three control multiple heat recovery fresh air conditioning set constructor figure (1)
Figure 10 is three control multiple heat pump figure
Figure 11 is three control multiple heat recovery fresh air conditioning set constructor figure (2)
Figure 12 is three control multiple heat recovery fresh air conditioning set constructor figure (3)
Figure 13 is two control multiple heat pump figure
Figure 14 is a kind of air-conditioning system figure (1)
Figure 15 is a kind of air-conditioning system figure (2)
Figure 16 is a kind of air-conditioning system figure (3)
Description of reference numerals:
1, new bellows, 2, 51, air exhaust box, 3, 11, fresh wind port, 4, 13, filter, 5, air-cooled evaporimeter, 6, reheater, 7, humidifier, 8, water fender, 9, pressure fan, 10, air outlet, 12, air inlet, 14, air cooled condenser, 15, dividing plate, 16, electric cabinet, 17, exhaust blower, 18, compressor, 19, exhaust outlet, 20, oil return capillary, 21, oil eliminator, 22, 25, four-way change-over valve, 23, 24, 26, 27, 34, 35, electric control valve, 28, reservoir, 29, 39, 41, 43, 45, 56, 62, 83, device for drying and filtering, 30, show liquid mirror, 31, 38, 40, 42, 44, 57, 63, 71, 72, 73, 84, expansion throttling device, 32, 85, water-cooled evaporimeter, 33, gas-liquid separator, 36, water heater, 37, water circulating pump, 46, fan coil, 47, 67, 68, 69, 70, check valve, 48, low pressure gas pipe, 49, high-pressure air pipe, 50, high-pressure liquid tube, 52, 53, 54, 55, 58, 59, 60, 61, 75, 76, 77, 78, 79, 80, 81, 82, magnetic valve, 64, mode converter, 65, off-premises station, 66, ventilating fan, 74, heat exchanger
concrete implementing method
Fig. 1 is a kind of Contiuum type heat recovery fresh air conditioning set constructor figure, and this equipment is made up of new bellows 1, air exhaust box 2, heat pump, power distribution control system four major parts.
Casing adopts the materials such as steel plate to make, with insulation material insulations such as polyurethane.Casing is provided with inspection door, is convenient to personnel and enters inspection and maintenance in case.Between new bellows 1 and air exhaust box 2, disconnected by dividing plate 15, paste insulation material, prevent from altering wind and heat exchange between air-supply and air draft.New bellows 1, air exhaust box 2 can be made all-in-one-piece, and required equipment is arranged in a complete casing, and all-in-one-piece air-conditioning unit is not easy to transportation, installs and maintenance, but saves material; Also can make sectionally assembledly, the equipment of difference in functionality is placed in several functional sections, make several small box, behind scene, be assembled into again an entirety.For example: in new bellows 1, fresh wind port 3, filter 4 are made to air intake hybrid filtering section, by that analogy, can make blower section, evaporimeter section, humidifying air-supplying section.Air exhaust box 2 can be made air intake hybrid filtering section, condenser section, heat pump main frame and electric cabinet section, exhaust blower section.Every section can disassembly and assembly, are convenient to transportation, install and maintenance.New bellows 1, air exhaust box 2 can add other functional section as required, as additional electrical bringing-up section, air sterillization section, muffler section, maintenance section etc.
Heat pump host machine part (compressor 18 equipment such as grade) can be placed in casing, also can be placed on outside casing, and the equipment such as air-cooled evaporimeter 5, reheater 6, air cooled condenser 14 are positioned at casing.Air-cooled evaporimeter 5, reheater 6, air cooled condenser 14 adopt the heat exchanger of the forms such as direct-expansion type structure coil pipe, guarantee that cold-producing medium evaporates and condensation therein, and heat exchanger is made of materials such as copper pipe and aluminium fins.
The electric cabinet 16 of power distribution control system is equipped with controller, display, controller switching equipment etc., can hang over outside casing, also can embed in casing, or arrange with casing split, and various distribution and control appliance and line distribution are in casing.The various pipelines that pass through dividing plate 15 should do encapsulation process, prevent from leaking out.
When summer, equipment was worked, in new bellows 1 under the effect of pressure fan 9, the new wind of outdoor high temperature high humidity enters in case from fresh wind port 3, by filter 4 dust removal and filtrations, by air-cooled evaporimeter 5, by cool-down dehumidification, pass through again reheater 6 heat temperature raisings, reach after the humiture of setting, through pressure fan 9, deliver to air conditioning area from air outlet 10; In air exhaust box 2 under the effect of exhaust blower 17, outdoor new wind enters in case from air inlet 12 from fresh wind port 11, indoor exhaust wind, after mixing by filter 13 dust removal and filtrations, by air cooled condenser 14, heated intensification, then drain into outdoor by exhaust blower 17, exhaust outlet 19.Because the temperature of indoor exhaust wind is lower than outside air temperature, in air exhaust box 2, air cooled condenser 14 is cooled by indoor-outdoor air, and the cold in indoor exhaust wind is recovered utilization.Indoor exhaust wind comprises indoor harmless air, as the air in office, also comprises noxious air, as: toilet foul smell, garage vehicle exhaust, kitchen fume etc., in these air drafts, contain a large amount of energy, the used heat of recycling is more.
When winter, equipment was worked, air-conditioning unit send hot blast to air-conditioned room, and in new bellows 1, the air-cooled evaporimeter 5 of heat pump is converted into condenser, for adding hot-air; In air exhaust box 2, the air cooled condenser 14 of heat pump is converted into evaporimeter, for absorbing heat from air.In new bellows 1 under the effect of pressure fan 9, the new wind of outdoor low temperature enters in case from fresh wind port 3, by filter 4 dust removal and filtrations, by heated intensification of air-cooled evaporimeter 5, if humidity is low, also need humidifier 7 humidifications, reach after the humidity of setting, through water fender 8, through pressure fan 9, deliver to air conditioning area from air outlet 10; In air exhaust box 2, under the effect of exhaust blower 17, outdoor new wind enters in case from air inlet 12 from fresh wind port 11, indoor exhaust wind, after mixing, by filter 13 dust removal and filtrations, by absorbing and cooling temperature, is discharged to outdoor from exhaust outlet 19 by air cooled condenser 14.Because indoor exhaust wind temperature is higher than outdoor temperature, heat energy is wherein absorbed by air cooled condenser 14, and heat energy is recycled utilization.
In equipment when operation,, the controller switching equipment of power distribution control system provides power supply for heat pump, pressure fan 9, exhaust blower 17, electronic air quantity regulating tuyere, automatic control system.Heat pump is varying capacity system, compressor 18 is variable conpacitance compressor, pressure fan 9, exhaust blower 17 are frequency control blower fan, fresh wind port 3,11, exhaust outlet 19, air outlet 10, air inlet 12 are electronic air quantity regulating tuyere, automatic control equipment is according to the variation of indoor-outdoor air parameter, control the capacity of compressor 18, automatically regulate refrigerating capacity or the heating capacity of refrigeration system, control pressure fan 9 and the rotating speed of exhaust blower 17, the aperture in each air port, automatically regulate air quantity, guarantee the efficient and stable operation of air-conditioning unit.In automatic control system, there are the equipment such as controller, display, sensor, actuator, conventionally adopt microcomputer control (as PLC controller), there is the functions such as autonomous setup parameter, fault detect, automatic alarm, can pass through touch-screen field control, also can pass through computer keyboard, mouse long control, and realize network control by LAN, internet.
The said equipment, new bellows 1 are that Contiuum type is connected with air exhaust box 2, also can make split type connection.When equipment dispatches from the factory, the refrigerant circulation pipe that air-cooled evaporimeter 5 or air cooled condenser 14 are connected with heat pump main frame is disconnect and seal, all kinds of circuits that are connected with electric cabinet 16 also disconnect, when on-the-spot installation, refrigerant circulation pipe connects by snap joint, all kinds of circuit access electric cabinets 16.Two casings can according to user need to be placed on different positions, arrange more flexibly, for example air exhaust box 2 can be placed on roof, save floor space, reduce the impact of unit noise.
Fig. 2 is above-mentioned heat recovery fresh air conditioning group heat pump figure, in the time that system is carried out kind of refrigeration cycle, refrigerant circulation process is: compressor 18 → oil eliminator 21 → four-way change-over valve 22, then divide two-way, one tunnel → electric control valve, 24 → air cooled condenser 14, another road → electric control valve 23 → reheater 6, two-way is at this converge → four-way change-over valve 25 → reservoir 28 → device for drying and filtering 29 → show liquid mirror 30 → expansion throttling device 31 → four-way change-over valve 25, then divide again two-way, one tunnel → electric control valve 26 → air-cooled evaporimeter 5, another road → electric control valve 27 → water-cooled evaporimeter 32, two-way is at this converge → four-way change-over valve 22 → gas-liquid separator 33 → compressor 18.Part of refrigerant condensation heat adds hot-air for reheater 6, and most of condensation of refrigerant heat is discharged in air cooled condenser 14; Part of refrigerant is evaporation endothermic in air-cooled evaporimeter 5, and most of cold-producing medium is evaporation endothermic in water-cooled evaporimeter 32, for indoor fan coil system provides 7 ~ 12 ℃ of air conditioning waters.Water-cooled evaporimeter 32 adopts the heat exchanger of shell-tube type, the form such as board-like, and heat transferring medium is cold-producing medium and air conditioner water, and it is placed in the casing of new bellows 1, air exhaust box 2 or outside casing, is preferably placed on indoorly, places freezed in winter.Air cooled condenser 14 is relations in parallel with reheater 6, air-cooled evaporimeter 5 with water-cooled evaporimeter 32.The said equipment, condensation of refrigerant heat is by air-cooled discharge in air cooled condenser 14 and reheater 6, the air-cooled heat exchange of direct-expansion type by air-cooled evaporimeter 5 provides air-conditioning cold hot blast, water-cooled heat exchange by water-cooled evaporimeter 32 provides air conditioner cold and hot water, and this heat pump can be described as air-cooled geomantic omen heat pump.
The high pressure-temperature gaseous refrigerant of discharging from compressor 18 oil eliminator 21 with lubricating oil separation, by oil return capillary 20, lubricating oil is back to compressor 18, also can be by the alternate manner lubricating oil that refluxes.
When new bellows 1 and air exhaust box 2 are Contiuum types while being connected, heat pump also can be made Contiuum type and connect; In the time that new bellows 1 are split type connection with air exhaust box 2, heat pump also can be made split type connection.
Heat pump Tu Shi winter heating circulation shown in Fig. 3, reheater 6 is not worked, air-cooled evaporimeter 5 is converted into condenser and adds hot-air, and water-cooled evaporimeter 32 is converted into the hot water of condenser heating blower coil air conditioner system, and air cooled condenser 14 is converted into evaporimeter and absorbs heat from air.Like this, heat pump is outside heating clamber in new wind, also for indoor fan coil pipe provides air conditioning hot.
Heat pump figure shown in Fig. 4 is carrying out kind of refrigeration cycle, high-temperature high-pressure refrigerant first passes through air cooled condenser 14, and then by reheater 6 and electric control valve 34, reheater 6 is series relationship with air cooled condenser 14, this system also can be described as air-cooled geomantic omen heat pump.
In heat pump figure shown in Fig. 5, circulatory mediator in air-cooled evaporimeter 5, water-cooled evaporimeter 32, reheater 6 is water, now air-cooled evaporimeter 5, reheater 6 have become surface cooler, water-cooled evaporimeter 32 provides air conditioning water, hot water for air-cooled evaporimeter 5 and indoor fan coil air conditioner system, in the winter time, also can be for reheater 6 provides hot water, for the outer new wind of heating clamber.Water in high temperature refrigerant heating water heater 36, adds hot-air or domestic hot-water is provided for reheater 6.Water heater 36 is with having heaters, when high temperature refrigerant passes through, and heating running water wherein, for user provides air conditioning hot and domestic hot-water, also save fuel cost, simultaneously because the heat of cold-producing medium is absorbed by running water, resh air requirement for condensating refrigerant just can reduce, and blower fan power consumption reduces.Water heater 36 can adopt helix tube type, shell-tube type, bushing type, the version such as board-like, uses enclosed to have pressure vessel or open type non-pressure vessel, and what in figure, adopt is that enclosed has pressure vessel, it from compressor 18 exhaust outlets more close to, recuperation of heat effect is better.In the winter time, water heater 36 quits work conventionally, do not produce hot water, the condensation heat of cold-producing medium is for air-conditioning heating, if water heater 36 also can be produced hot water in the winter time, need to strengthen power system capacity, improve quantity of heat production, as: increase the power of compressor 18, the exhaust air rate of outdoor resh air requirement and exhaust blower 17 in increasing exhaust case 2.Water heater 36 can be placed in casing, also can be placed on outside casing, when this equipment heat supply in winter, should guarantee not freeze.This unit part of refrigerant condensation heat is given reheater 6 by the hot water of water heater 36, and water-cooled evaporimeter 32 has become surface cooler, provides air conditioner cold and hot water by water-cooled evaporimeter 32, and this heat pump can be described as air-water-cooled hydro-thermal pumping system.
In Fig. 6 heat pump with air-cooled evaporimeter 5 and water-cooled evaporimeter 32, both are connected in parallel in system, also can be described as double-cold source heat pump system in parallel, in the time carrying out kind of refrigeration cycle, it can realize the humiture Stand-Alone Control Facility reason to air, refrigerant circulation process is: compressor 18 → oil eliminator 21 → four-way change-over valve 22, then divide two-way, one tunnel → electric control valve, 24 → air cooled condenser 14, another road → electric control valve 23 → reheater 6, two-way is at this converge → device for drying and filtering 29 → expansion throttling device 31 → four-way change-over valve 25 → reservoir 28 → four-way change-over valve 25, then divide two-way, one tunnel → expansion throttling device, 38 → device for drying and filtering 39 → air-cooled evaporimeter 5, another road → expansion throttling device 40 → device for drying and filtering 41 → water-cooled evaporimeter 32, two-way is at this converge → four-way change-over valve 22 → gas-liquid separator 33 → compressor 18.The liquid cold-producing medium of most of HTHP is through the throttling of expansion throttling device 40, becoming evaporating temperature is the low-temp low-pressure liquid refrigerant of 15 ℃ of left and right, flow in water-cooled evaporimeter 32, for indoor dry-type fan coil provides the high-temperature air conditioner chilled water of 16 ℃, indoor return air is done to the processing of dry type cooling down; The liquid cold-producing medium of another part HTHP is through the throttling of expansion throttling device 38, becoming evaporating temperature is the low-temp low-pressure liquid refrigerant of 6 ℃ of left and right, flow in air-cooled evaporimeter 5, outdoor high temperature highly humid air is carried out to cool-down dehumidification, through the heat again of reheater 6, then directly send into air-conditioned room, therefore realize the humiture Stand-Alone Control Facility reason to air, because evaporating temperature has improved, heat pump efficiency also improves.
When system heats circulation time, 31 throttling actions of expansion throttling device, air-cooled evaporimeter 5, water-cooled evaporimeter 32 are converted to condenser for adding hot-air and air conditioning hot.
In Fig. 7 heat pump, air-cooled evaporimeter 5 is series relationship with water-cooled evaporimeter 32, also can be described as series connection double-cold source heat pump system.In the time that system is carried out kind of refrigeration cycle, 31 or 42 throttling actions of expansion throttling device, refrigerant circulation process is: compressor 18 → oil eliminator 21 → four-way change-over valve 22, then divide two-way, one tunnel → electric control valve, 24 → air cooled condenser 14, another road → electric control valve 23 → reheater 6, two-way is at this converge → device for drying and filtering 29 → expansion throttling device 31 → four-way change-over valve 25 → reservoir 28 → four-way change-over valve 25 → expansion throttling device 42 → device for drying and filtering 43 → air-cooled evaporimeter 5 → water-cooled evaporimeter 32 → four-way change-over valve 22 → gas-liquid separator 33 → compressor 18.It is that evaporating temperature is the low-temp low-pressure liquid refrigerant of 6 ℃ of left and right that the liquid cold-producing medium of HTHP is inflated flow controller 31 or 42 throttlings, flow in air-cooled evaporimeter 5, outdoor high temperature highly humid air is carried out to cool-down dehumidification, through the heat again of reheater 6, then directly send into air-conditioned room.The low-temp low-pressure liquid refrigerant of 6 ℃ of left and right is through the heat absorption evaporation of air-cooled evaporimeter 5, become gas or the gas liquid mixture of 15 ℃ of left and right, enter in water-cooled evaporimeter 32, produce the air conditioning water of 16 ℃, for indoor dry-type fan coil, indoor return air is done to the processing of dry type cooling down, thereby realized the humiture Stand-Alone Control Facility reason to air.
Fig. 8 is one swollen (VRV) multiple heat pump figure directly entirely, and an outdoor air exhaust box 2 is with 2 and above new bellows 1 and fan coil 46.Air exhaust box 2 is with air cooled condenser 14, heat pump main frame etc., and in new bellows 1, with air-cooled evaporimeter 5, reheater 6 etc., fan coil 46 is the heat exchanger of direct-expansion type structure.This heat pump is four control, two air-cooled evaporimeters 5 of pipe racks and fan coil 46, and when refrigeration, transporting low temperature low pressure refrigerant, while heating, carries high-temperature high-pressure refrigerant.Another two pipe racks reheaters 6, carry high-temperature high-pressure refrigerant, for hot again, work as winter, when some rooms still need to freeze, can close the air-cooled evaporimeter 5 in new bellows 1, open reheater 6, it converts evaporimeter to, send cold wind to room, has realized the object that heats simultaneously, freezes.
Fig. 9 is a kind of multiple heat recovery fresh air conditioning set constructor figure.Outdoor new wind is delivered to air-conditioned room after wind pushing box 1 is processed, indoor exhaust wind air exhaust box 2 is interior be discharged to after being recovered energy by heat pump outdoor.Indoor fan coil pipe 46 circular treatment room airs.Air exhaust box 2 is placed on outdoor, and air inlet 12 connects indoor exhaust wind, and air cooled condenser 14 is also convertible into evaporimeter, absorb the cold and hot amount in indoor exhaust wind and outdoor new wind, compressor 18 is placed in casing, also can be placed on outside casing, for high-capacity air conditioning system, can establish many air exhaust boxes 2 use in parallel; In the time that indoor exhaust wind can not all be linked in outdoor air exhaust box 2, at the indoor air exhaust box 51 of establishing, access a part of indoor exhaust wind, different with said exhaust case 2, it does not fill compressor 18, fresh wind port 11, only process indoor exhaust wind, air cooled condenser 14 is also convertible into evaporimeter, reclaim the cold and hot amount in indoor exhaust wind, it is contained in indoor, can make monoblock type with the wind pushing box 1 of serving identical air conditioning area, also can make split type, in Fig. 9, be split type, arrange so more flexible; In wind pushing box 1, air-cooled evaporimeter 5 is also convertible into condenser, and reheater 6 is also convertible into evaporimeter.Air exhaust box 2,51, new bellows 1, fan coil 46 are connected on low pressure gas pipe 48, high-pressure air pipe 49, high-pressure liquid tube 50, composition three control swollen (VRV) system directly entirely.In figure, heat pump only illustrates to connect three indoor units (new bellows 1, air exhaust box 51, fan coil 46), an off-premises station (air exhaust box 2), and it can linking number platform indoor and outdoor unit.When air conditioning area has enough large exhausting duct when outdoor, can not establish air exhaust box 51, indoor exhaust wind all accesses in air exhaust box 2.
Figure 10 is the heat pump figure of the heat recovery fresh air conditioning of multiple shown in Fig. 9 group.In air exhaust box 2, magnetic valve 52 is opened, and magnetic valve 53 cuts out, and air cooled condenser 14 heats; Magnetic valve 52 cuts out, and magnetic valve 53 is opened, and condenser 16 freezes.In air exhaust box 51, magnetic valve 54 is opened, and magnetic valve 55 cuts out, and air cooled condenser 14 heats; Magnetic valve 55 is opened, and magnetic valve 54 cuts out, and air cooled condenser 14 freezes.In new bellows 1, have reheater 6, expansion throttling device 63 is controlled the flow of cold-producing medium, and by controlling magnetic valve 58,59, reheater 6 also can convert evaporimeter to and use, for subsequent use each other with evaporimeter 5.Magnetic valve 58 is opened, and magnetic valve 59 cuts out, and reheater 6 heats; Magnetic valve 58 cuts out, and magnetic valve 59 is opened, and reheater 6 freezes.Magnetic valve 61 is opened, and magnetic valve 60 cuts out, and air-cooled evaporimeter 5 freezes; Magnetic valve 61 cuts out, and magnetic valve 60 is opened, and air-cooled evaporimeter 5 heats.Mode converter 64 is controlled the conversion of fan coil 46 refrigeration and heating condition.
System shown in Figure 10 is three control systems, air-cooled evaporimeter 5, reheater 6, air cooled condenser 14, fan coil 46 are connected with low pressure gas pipe 48, high-pressure air pipe 49, high-pressure liquid tube 50, this system has three kinds of operating modes: simultaneously refrigeration, simultaneously heat or a part of casing and fan coil in heating, other casing and fan coil can freeze.Suppose that this system heats circulation in the winter time, new bellows 1 send cold wind, and air-cooled evaporimeter 5 freezes, reheater 6 heats; Fan coil 46 heats, and it and new bellows 1 are not at an air conditioning area; Air exhaust box 51 absorbs heat, and air cooled condenser 14 wherein freezes; Air exhaust box 2 absorbs heat, air cooled condenser 14 wherein freeze (it is refrigeration or heats, and carries out after computing that need to be by automatic control system and judgement).Therefore in above-mentioned refrigerant circulation process, the heat that air-cooled evaporimeter 5, air cooled condenser 14 absorb has been passed to fan coil 46, reheater 6.Therefore, by controlling, magnetic valve opens and closes, the conversion of mode converter, realize the transformation of each unit operation operating mode, can meet the demand of freezing simultaneously and heat in different air-conditionings place, and the cold and hot amount in different air-conditionings place can be recycled mutually again, recovery total improves, obvious energy conservation, and this multiple heat pump is also referred to as recovery type heat pump system.The office building that for example depth is larger, in the winter time, outskirt need to send hot blast, and inner region need to send cold wind, adopts this equipment to meet the demands.
Said system also can realize the Stand-Alone Control Facility reason of aerial temperature and humidity, by regulating the aperture of the expansion throttling device 38 of air-cooled evaporimeter 5 and the expansion throttling device of fan coil 46, guarantee that the evaporating temperature of cold-producing medium in air-cooled evaporimeter 5 is 6 ℃, evaporating temperature in fan coil 46 is 15 ℃, like this, air-cooled evaporimeter 5 carries out dehumidifying and cooling to the new wind of outdoor high temperature high humidity in summer, and indoor dry-type fan coil 46 only does cooling to indoor return air and processes.
Figure 11 is another kind of three control multiple heat recovery fresh air conditioning set constructor figure, and one group is placed on outdoor new bellows 1, air exhaust box 2, three above fan coils 46 of heat pump band.
Figure 12 is another kind of three control multiple heat recovery fresh air conditioning set constructor figure, and it has changed off-premises station 65 into the outdoor unit air exhaust box 2 in Fig. 9,11.It is made up of air cooled condenser 14, ventilating fan 66, compressor 18, refrigerant circulation pipe, refrigeration system servicing unit, electric cabinet 16 etc., off-premises station 65 does not connect indoor exhaust wind, outdoor air is under the effect of ventilating fan 66, cooling or heating air cooled condenser 14, indoor units air exhaust box 51 is responsible for reclaiming the heat energy of indoor exhaust wind, this unit is applicable to indoor exhaust wind road to the outdoor inconvenience of drawing, or there is no the available occasion of indoor exhaust wind.
Figure 13 is the heat pump figure of another kind of multiple, includes the air-cooled evaporimeter 5 of the air cooled condenser 14 of air cooled condenser 14, the indoor exhaust wind case 51 of outdoor air exhaust box 2, new bellows 1 and reheater 6, fan coil 46.This system is heating circulation, reheater 6, fan coil 46 are heating, air cooled condenser 14, air-cooled evaporimeter 5 are in refrigeration, by circulation, air-cooled evaporimeter 5 is by the heat of served air conditioning area, be delivered to the air conditioning area that fan coil 46 is served, inner heat is recycled utilization.This system is also referred to as recovery type heat pump system, and with above-mentioned three control system differences, it is two control, by a flue and a highly pressurised liquid pipe, multiple units is coupled together.
Figure 14 is a kind of air-conditioning system figure, and its heat pump is as handpiece Water Chilling Units, for the new bellows 1 of air conditioning terminal and fan coil 46 provide air conditioning water and hot water.Water heater 36 is connected in parallel with air cooled condenser 14, and by high temperature refrigerant heat hot water, heat or domestic hot-water is provided for reheater 6 summer, and can utilize supplementary energy winter, as solar energy, in water heater 36, inputs hot water, for air-conditioning heating.Therefore the condenser of this heat pump adopts the mode of air-cooled and water-cooled, also can be described as air-water-cooled handpiece Water Chilling Units.Water-cooled evaporimeter provides air conditioning hot winter for the air-cooled evaporimeter 5 of new bellows 1 provides the air conditioning water of 7 ~ 12 ℃ 85 summers.Water-cooled evaporimeter provides air conditioning hot winter for fan coil 46 provides the air conditioning water of 7 ~ 12 ℃ 32 summers, and in the time managing for humiture Stand-Alone Control Facility, it provides the high temperature chilled water of 16 ~ 21 ℃ for dry-type fan coil 46.The heat pump of this pair of low-temperature receiver also can be described as the two low-temperature receiver hydro-thermal pumping systems of air-water-cooled.If not needing humiture independently controls, water-cooled evaporimeter 32,85 can unite two into one, for air-cooled evaporimeter 5 and the fan coil 46 of new bellows 1 provide air conditioning water, the air conditioning hot of 7 ~ 12 ℃, the heat pump of this single low-temperature receiver also can be described as air-water-cooled list low-temperature receiver water system.Also can cancel water-cooled evaporimeter 85, allow the evaporating temperature be that the cold-producing medium of 5 ℃ enters air-cooled evaporimeter 5, form air-cooled source and water-cooled source and deposit, the heat pump of this pair of low-temperature receiver also can be described as low-temperature receiver geomantic omen, air-water-cooled geomantic omen heat pump.Above-mentioned water-cooled unit is placed on when outdoor, and should note antifreeze winter.
Figure 15 is another kind of air-conditioning system figure, different from Figure 14 is, it has cancelled water-cooled evaporimeter 85, and air-cooled evaporimeter 5 and fan coil 46 share a water-cooled evaporimeter 32, at air-conditioning system end, air-cooled evaporimeter 5 is connected with fan coil 46, summer, the air conditioning water of 8 ℃ of left and right first passed through air-cooled evaporimeter 5, to outdoor new wind cool-down dehumidification, became the high temperature chilled water of 16 ℃, deliver to again in dry-type fan coil 46, thereby realize, aerial temperature and humidity Stand-Alone Control Facility is managed.
Figure 16 air-conditioning system is multiple system, and air-cooled evaporimeter 5 and the reheater 6 of heat recovery fresh air conditioning group adopt direct-expansion type heat exchange, and fan coil 46 adopts water-cooled heat exchange, and its heat pump can be described as air-cooled geomantic omen heat pump.
In sum, indoor fan coil pipe and heat recovery fresh air unit share a heat pump, unit can be placed on to roof or outdoor, reduce floor space, reduce the quantity of source pump, reduced investment cost, system maintenance is simple to operate, and unit operation efficiency is high, and operating cost is low.
The above, be only better implementing method of the present invention, not the present invention done to any pro forma restriction.Any simple modification, equivalent variations and the modification above implementing method done according to technical spirit of the present invention, all belong to protection scope of the present invention.
Claims (6)
1. for the heat pump of fan coil and heat recovery fresh air conditioning group, it is by compressor, air cooled condenser, water heater, expansion throttling device, evaporimeter, reheater, servicing unit, refrigerant circulation pipe, cold-producing medium composition, they are linked in sequence into cooling cycle system, heat recovery fresh air conditioning group is by new bellows, air exhaust box, power distribution control system composition, it is characterized in that, fan coil and heat recovery fresh air conditioning group share a set of heat pump, pass through water-cooled, direct-expansion type, water-cooled and straight swollen hybrid heat transfer, heat pump provides air conditioner cold-heat source for fan coil and heat recovery fresh air conditioning group, air cooled condenser is contained in air exhaust box, it is direct-expansion type structure coil heat exchanger, summer is to heat extraction in indoor exhaust wind and outdoor air, be converted into evaporimeter winter absorbs heat from indoor exhaust wind and outdoor air, water heater is contained in casing or outside casing, rely on high temperature refrigerant and auxiliary heating source for heating hot water, air cooled condenser is in parallel with water heater or be connected in heat pump, evaporimeter has air-cooled evaporimeter and water-cooled evaporimeter, in new bellows, air-cooled evaporimeter is housed, it is direct-expansion type structure coil heat exchanger or surface cooler, for new wind cooling in summer is dehumidified, being converted into condenser winter heats new wind, reheater is contained in new bellows, it is direct-expansion type structure coil heat exchanger or surface cooler, for the heat or winter new wind is heated again of the new wind to after cooling in summer dehumidifying, water-cooled evaporimeter summer is fan coil, air-cooled evaporimeter provides air conditioning water, be converted into condenser air conditioning hot is provided winter, it is contained in casing or outside casing, air-cooled evaporimeter is in parallel with water-cooled evaporimeter or be connected in heat pump, heat pump adopts Contiuum type, split type, multiple connects.
2. heat pump according to claim 1, is characterized in that, in the time that heat pump is wind-cooling type heat pump system, condensation of refrigerant heat relies on air cooled condenser and reheater discharge; In the time that heat pump is air-water-cooled heat pump, a condensation of refrigerant heat part relies on air cooled condenser discharge, and a part relies on water heater to pass to reheater discharge by hot water.
3. heat pump according to claim 1, it is characterized in that, in the time that heat pump is geomantic omen heat pump, air-cooled evaporimeter is direct-expansion type structure coil heat exchanger, provide Cooling and Heat Source to process new wind by cold-producing medium, water-cooled evaporimeter is by cold-producing medium and air conditioner water heat exchange, for fan coil provides air conditioner cold and hot water; In the time that heat pump is hydro-thermal pumping system, air-cooled evaporimeter is surface cooler, and water-cooled evaporimeter is by cold-producing medium and air conditioner water heat exchange, for air-cooled evaporimeter and fan coil provide air conditioner cold and hot water.
4. multiple heat pump according to claim 1, is characterized in that, it is complete straight swollen heat pump, and it adopts the heat pump of two control, three control, four control.
5. reheater according to claim 1, is characterized in that, in the time that it is direct-expansion type structure coil heat exchanger, it is in parallel with air cooled condenser or be connected in heat pump, utilizes cold-producing medium heating or cooling-air; In the time that it is surface cooler, it is connected with water heater or water-cooled evaporimeter, utilizes hot and cold water heating or cooling-air.
6. heat pump according to claim 1, it is characterized in that, when heat pump has two low-temperature receivers, or there is single low-temperature receiver, air conditioning terminal reducing temperature twice, by controlling the evaporating temperature of cold-producing medium in air-cooled evaporimeter, water-cooled evaporimeter, fan coil, thereby realize the humiture Stand-Alone Control Facility reason to air.
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| CN201410156903.9A CN103912947B (en) | 2014-04-13 | 2014-04-18 | For fan coil and the heat pump of heat recovery fresh air conditioning group |
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| CN201410144987 | 2014-04-13 | ||
| CN201410144987.4 | 2014-04-13 | ||
| CN2014101449874 | 2014-04-13 | ||
| CN201410156903.9A CN103912947B (en) | 2014-04-13 | 2014-04-18 | For fan coil and the heat pump of heat recovery fresh air conditioning group |
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| CN103912947A true CN103912947A (en) | 2014-07-09 |
| CN103912947B CN103912947B (en) | 2018-03-06 |
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| CN201410156903.9A Active CN103912947B (en) | 2014-04-13 | 2014-04-18 | For fan coil and the heat pump of heat recovery fresh air conditioning group |
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| CN104534613A (en) * | 2014-11-19 | 2015-04-22 | 浙江华健医用工程有限公司 | A controlling system and a controlling method of a two-pipe air conditioner specially used for a clean operation room |
| CN104990174A (en) * | 2015-06-03 | 2015-10-21 | 荣国华 | Direct expansion type air-water cooled air conditioning system |
| CN107449033A (en) * | 2017-06-29 | 2017-12-08 | 斯福朗（北京）环保科技有限公司 | A kind of capillary radiation system Fresh air handing unit and its control method |
| CN107559983A (en) * | 2017-08-18 | 2018-01-09 | 广东美的暖通设备有限公司 | Integral type VMC |
| CN108758902A (en) * | 2018-04-02 | 2018-11-06 | 南京天加环境科技有限公司 | A kind of straight swollen air conditioner box system using digital variable volume heat recovery technology |
| CN111219838A (en) * | 2019-11-19 | 2020-06-02 | 珠海格力电器股份有限公司 | Temperature controller and air conditioner matching method and device and temperature controller equipment |
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| CN113294936A (en) * | 2021-05-31 | 2021-08-24 | 湖南科技大学 | Start-stop device of exhaust energy extraction device in heat recovery system and control method thereof |
| CN115264690A (en) * | 2022-07-22 | 2022-11-01 | 珠海格力电器股份有限公司 | Bypass heat exchange structure, four-pipe heating recovery system, air conditioning unit and control method |
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| CN104534613A (en) * | 2014-11-19 | 2015-04-22 | 浙江华健医用工程有限公司 | A controlling system and a controlling method of a two-pipe air conditioner specially used for a clean operation room |
| CN104990174A (en) * | 2015-06-03 | 2015-10-21 | 荣国华 | Direct expansion type air-water cooled air conditioning system |
| CN104990174B (en) * | 2015-06-03 | 2017-10-10 | 荣国华 | Direct-expansion type geomantic omen cold air conditioning system |
| CN107449033A (en) * | 2017-06-29 | 2017-12-08 | 斯福朗（北京）环保科技有限公司 | A kind of capillary radiation system Fresh air handing unit and its control method |
| CN107559983A (en) * | 2017-08-18 | 2018-01-09 | 广东美的暖通设备有限公司 | Integral type VMC |
| CN108758902A (en) * | 2018-04-02 | 2018-11-06 | 南京天加环境科技有限公司 | A kind of straight swollen air conditioner box system using digital variable volume heat recovery technology |
| CN111219838A (en) * | 2019-11-19 | 2020-06-02 | 珠海格力电器股份有限公司 | Temperature controller and air conditioner matching method and device and temperature controller equipment |
| CN111649419A (en) * | 2020-05-28 | 2020-09-11 | 扬州大学 | Bathroom environment adjusting system based on heat pump collision jet air supply |
| CN111649419B (en) * | 2020-05-28 | 2021-06-08 | 扬州大学 | Bathroom environment adjusting system based on heat pump collision jet air supply |
| CN113294936A (en) * | 2021-05-31 | 2021-08-24 | 湖南科技大学 | Start-stop device of exhaust energy extraction device in heat recovery system and control method thereof |
| CN113294936B (en) * | 2021-05-31 | 2022-06-10 | 湖南科技大学 | Start-stop device of exhaust energy extraction device in heat recovery system and control method thereof |
| CN115264690A (en) * | 2022-07-22 | 2022-11-01 | 珠海格力电器股份有限公司 | Bypass heat exchange structure, four-pipe heating recovery system, air conditioning unit and control method |
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| Publication number | Publication date |
|---|---|
| CN203837171U (en) | 2014-09-17 |
| CN103912947B (en) | 2018-03-06 |
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