CN105333543A

CN105333543A - Multifunctional central air-conditioning system and running control method thereof

Info

Publication number: CN105333543A
Application number: CN201510385115.1A
Authority: CN
Inventors: 方颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-07-03
Filing date: 2015-07-03
Publication date: 2016-02-17

Abstract

The invention discloses a multifunctional central air-conditioning system and a running control method thereof. The central air-conditioning system comprises a heat pump unit, an air-conditioning unit, an air source unit, a domestic hot water unit, an ice storage unit and a pipe conversion unit. According to the multifunctional central air-conditioning system, through conversion control of the pipe conversion unit, the multiple function units are combined, the air-conditioning using requirements of a user for different modes, different functions and different seasons can be met, the energy using efficiency of the system is improved, the using cost is reduced, environmental protection and energy conservation are achieved, and the influences on the environment are reduced.

Description

A kind of Multifunctional central air-conditioning system and progress control method thereof

Technical field

The present invention relates to air-conditioning technical field, refer more particularly to that a kind of control model is various, the Multifunctional central air-conditioning system of environmental protection and energy saving and progress control method thereof.

Background technology

In existing central air conditioner system, generally adopt centralized secondary heat exchange system, the chilled water produced by evaporimeter by compressor or heating water send into air conditioner end equipment by pipeline, reach air-conditioning and regulate object, the heat that system condenser produces or cold are then disposed in atmospheric environment by cooling tower, a large amount of valuable energy consumes in vain, cause system use cost higher, also certain influence is caused to environment, simultaneously, the central air conditioner system of single-mode also cannot meet the different adjustment requirement using region, can not adapt to the diversity that user uses.

Summary of the invention

The present invention mainly solves the technical problem that existing central air conditioner system control model is single, use cost is higher; Provide that a kind of control model is various, the Multifunctional central air-conditioning system of environmental protection and energy saving and control method thereof.In order to solve the technical problem of above-mentioned existence, the present invention mainly adopts following technical proposals:

A kind of Multifunctional central air-conditioning system of the present invention, comprises

Heat pump unit: reclaim source pump by hot pump in low temp unit and Low Temperature Thermal and form, for supplying cold-peace heat supply;

Air-conditioning unit: comprise and organize fan coil more, regulates for using the temperature in region;

Air-source unit: for the heat exchange of low-temperature receiver water or heat source water and ambient air outside;

Domestic hot-water's unit: for providing domestic hot-water, the condenser pipe reclaiming source pump with Low Temperature Thermal is connected;

Ice conserve cold unit: for storing the refrigerating capacity that hot pump in low temp unit produces, comprise Ice Storage Tank, described Ice Storage Tank is connected with the evaporator pipeline of described hot pump in low temp unit;

Pipeline converting unit: comprise to reclaim source pump evaporimeter with hot pump in low temp unit evaporimeter and Low Temperature Thermal and be connected low-temperature receiver water pump, to reclaim thermal source water pump and multiple cross valve assembly that source pump condenser is connected with hot pump in low temp train condenser and Low Temperature Thermal, be connected with pipeline change of condenser with above-mentioned each unit for evaporimeter; Be interconnected by pipeline between described each unit.

Central air conditioner system is connected by the conversion of the many groups cross valve in pipeline converting unit, by multiple functional unit flexible combination, the air-conditioning instructions for use of user's different mode, difference in functionality and Various Seasonal can be met, improve the energy use efficiency of whole system, reduce use cost, environmental protection and energy saving, reduce the impact on environment.

As preferably, described heat pump unit comprises multiple stage hot pump in low temp unit and multiple stage Low Temperature Thermal reclaims source pump, described hot pump in low temp unit comprises compressor, water-cooled evaporimeter and single channel water cooled condenser, the external described low-temperature receiver water pump of this water-cooled evaporimeter also accesses described pipeline converting unit, the external described thermal source water pump of this single channel water cooled condenser also accesses pipeline converting unit, described Low Temperature Thermal reclaims source pump and comprises compressor, water-cooled evaporimeter and dual channel water cooled condenser, the external low-temperature receiver water pump of this water-cooled evaporimeter also accesses pipeline converting unit, this dual channel water cooled condenser is made up of condensation channel and recuperation of heat passage, wherein condensation channel accesses pipeline converting unit and connects thermal source water pump, the other end of this thermal source water pump is then connected with described air-source unit, recuperation of heat passage is then connected with described domestic hot-water's unit by heat-exchanger pump, the unit that heat pump adopts many groups dissimilar, flexible configuration, adaptability is good, can according to user's request and actual institute's chilling requirement or heat, any combination forms optimum operating condition, effectively utilize in air-conditioning use procedure all kinds of energy produced, reach energy-saving and cost-reducing object.

As preferably, described ice conserve cold unit is provided with plate type heat exchanger I, the side exchange end of described plate type heat exchanger I is connected with described air-conditioning unit, opposite side exchange end is then connected with described Ice Storage Tank pipeline, air-conditioning unit carries out heat exchange by plate type heat exchanger I and Ice Storage Tank, adopt ice conserve cold unit, when conditioning in Transition Season chilling requirement is less, some residual cold can be stored, use during stand-by cold peak, also can low power consumption or electricity price lower time electricity converted to cold and stores, until peak of power consumption or electricity price higher time use, reach energy-conservation and fall expense object.

As preferably, plate type heat exchanger II is also provided with between described air-source unit and air-conditioning unit, the side exchange end of described plate type heat exchanger II is connected with air-conditioning unit pipeline, opposite side exchange end is connected with air-source unit pipeline, air-conditioning unit carries out heat exchange by plate type heat exchanger II and air-source unit, plate type heat exchanger II is set up between air-source unit and air-conditioning unit, can when indoor/outdoor temperature-difference be larger, source pump need not be opened, directly utilize the hot-swap feature of plate type heat exchanger II, the cold of outdoor or heat are imported indoor, there is good energy-saving effect.

As preferably, described system is also provided with the anti-icing fluid be connected with described air-source unit and reclaims detecting unit, store anti-icing fluid for reclaiming winter and detect, the system not used time in the winter time, circulatory mediator in extraneous air source unit can be reclaimed and be stored in anti-icing fluid recovery detecting unit and detected, to judge the index adjusting anti-icing fluid, prevent heat pump unit from damaging.

As preferably, described domestic hot-water's unit is open type hot-water heating system or closed type hot water system, can according to demand, the type of unrestricted choice hot-water heating system, improves reliability and the continuity of domestic hot-water supply.

The progress control method of a kind of Multifunctional central air-conditioning system of the present invention, Multifunctional central air-conditioning system comprises heat pump unit, air-conditioning unit, air-source unit, ice conserve cold unit, pipeline converting unit and domestic hot-water's unit, be interconnected by pipeline between each unit, heat pump unit comprises multiple stage hot pump in low temp unit and multiple stage Low Temperature Thermal reclaims source pump, domestic hot-water's unit is closed type hot water system, and its control method comprises operation condition in summer control, winter operation operating conditions and conditioning in Transition Season operating condition and controls.

As preferably, its operation condition in summer comprise separate refrigeration operating condition in summer, summer ice conserve cold refrigerating operaton operating mode and cooling in summer and supplying hot water cooperation operating mode, its rate-determining steps is as follows:

Summer separate refrigeration operating condition

1) hot pump in low temp unit refrigerating operaton, now, this unit water-cooled evaporimeter outlet pipe is communicated with the water inlet manifold of air-conditioning unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-conditioning unit by corresponding cross valve with low-temperature receiver water pump, form hot pump in low temp unit low-temperature receiver water-flow circuit to air-conditioning unit cooling, this unit single channel water cooled condenser outlet pipe is then communicated with the water inlet manifold of air-source unit by corresponding cross valve, single channel water cooled condenser water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with thermal source water pump, form hot pump in low temp unit heat source water closed circuit to air heat release,

2) as air-conditioning unit institute chilling requirement cannot be met, then can continue to open all the other hot pump in low temp units successively, for increasing refrigerating capacity, its low-temperature receiver water-flow circuit and aforementioned hot pump in low temp unit low-temperature receiver water-flow circuit are connected in parallel, and its heat source water closed circuit and aforementioned hot pump in low temp unit heat source water closed circuit are connected in parallel;

3) as hot pump in low temp unit cannot meet air-conditioning unit institute chilling requirement, then can continue to open Low Temperature Thermal and reclaim source pump refrigerating operaton, now, this unit water-cooled evaporimeter outlet pipe is communicated with the water inlet manifold of air-conditioning unit by the corresponding cross valve in pipeline converting unit, the water inlet pipe of water-cooled evaporimeter is communicated with the outfall sewer of air-conditioning unit with low-temperature receiver water pump by corresponding cross valve, form the Low Temperature Thermal in parallel with hot pump in low temp unit low-temperature receiver water-flow circuit and reclaim source pump low-temperature receiver water-flow circuit, the condensation channel outlet pipe of the dual channel water cooled condenser of this unit is communicated with the water inlet manifold of air-source unit by corresponding cross valve, condensation channel water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with thermal source water pump, form the Low Temperature Thermal in parallel with hot pump in low temp unit heat source water closed circuit and reclaim source pump heat source water closed circuit, the recuperation of heat passage of dual channel water cooled condenser is then closed, do not produce hot water, now, Low Temperature Thermal reclaims source pump and is equal to hot pump in low temp unit, be equivalent to add source pump quantity,

4) air-conditioning unit institute chilling requirement cannot still be met as increased a Low Temperature Thermal recovery source pump, then can continue to open all the other Low Temperature Thermals successively and reclaim source pump, for increasing refrigerating capacity, its low-temperature receiver water-flow circuit and aforementioned Low Temperature Thermal reclaim source pump low-temperature receiver water-flow circuit and are connected in parallel, and its heat source water closed circuit and aforementioned Low Temperature Thermal reclaim source pump heat source water closed circuit and be connected in parallel;

This kind of operating mode and common water-cooled central air-conditioning refrigeration mode, the cold that unit evaporimeter produces by the fan coil terminal of air-conditioning unit imports, make air conditioning area temperature reach requirement, the heat that train condenser produces then is distributed in air by the cooling tower of air-source unit.

Summer ice conserve cold refrigerating operaton operating mode

1) hot pump in low temp unit refrigerating operaton, Low Temperature Thermal reclaims source pump and closes, now, the water-cooled evaporimeter outlet pipe of this unit is communicated with the water inlet manifold of ice conserve cold unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of ice conserve cold unit by corresponding cross valve with low-temperature receiver water pump, form hot pump in low temp unit low-temperature receiver water-flow circuit and the Ice Storage Tank in ice conserve cold unit is freezed, and the single channel water cooled condenser outlet pipe of this unit is communicated with the water inlet manifold of air-source unit by corresponding cross valve, single channel water cooled condenser water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with thermal source water pump, form hot pump in low temp unit heat source water closed circuit, simultaneously, the side exchange end of the plate type heat exchanger I of ice conserve cold unit communicates with Ice Storage Tank, opposite side exchange end communicates with air-conditioning unit, ice conserve cold unit is by plate type heat exchanger I and air-conditioning unit heat exchange and to air-conditioning unit cooling,

2) as cold in Ice Storage Tank is enough to meet air-conditioning unit institute chilling requirement, then can close hot pump in low temp unit, or stage enables hot pump in low temp unit, this kind of method can for peak-trough electricity region, flat peak or electricity consumption well-to-do time freeze and store, when peak or shortage of electric power derive cold;

3) as a hot pump in low temp unit cannot meet ice conserve cold unit institute chilling requirement, then can continue to open all the other hot pump in low temp units successively, for increasing refrigerating capacity, its low-temperature receiver water-flow circuit and aforementioned hot pump in low temp unit low-temperature receiver water-flow circuit are connected in parallel, common to ice conserve cold unit cooling, the heat source water closed circuit of its heat source water closed circuit and aforementioned hot pump in low temp unit is connected in parallel;

Under this kind of operating mode, the evaporimeter of unit directly freezes to Ice Storage Tank, is stored in by cold in Ice Storage Tank, and air-conditioning unit then and Ice Storage Tank indirect by heat exchanger I carries out heat exchange and imports cold, control band temperature; Certainly, also can start a Low Temperature Thermal and reclaim unit, realize the mixed-mode operations of another supplying cold directly of cold-storage.

Cooling in summer and supplying hot water cooperation operating mode

1) one or more hot pump in low temp unit refrigerating operaton, the water-cooled evaporimeter outlet pipe of unit is communicated with air-conditioning unit water inlet manifold by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with air-conditioning unit outfall sewer by corresponding cross valve with low-temperature receiver water pump, form hot pump in low temp unit low-temperature receiver water-flow circuit to air-conditioning unit cooling, and the single channel water cooled condenser outlet pipe of unit is communicated with the water inlet manifold of air-source unit by corresponding cross valve, the water inlet pipe of single channel condenser is communicated with the outfall sewer of air-source unit with thermal source water pump by corresponding cross valve, form hot pump in low temp unit heat source water closed circuit to air heat release,

2) simultaneously, open Low Temperature Thermal and reclaim source pump, now, the water-cooled evaporimeter outlet pipe of this unit is communicated with the water inlet manifold of air-conditioning unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-conditioning unit by corresponding cross valve with low-temperature receiver water pump, form the Low Temperature Thermal in parallel with aforementioned hot pump in low temp unit low-temperature receiver water-flow circuit and reclaim source pump low-temperature receiver water-flow circuit, and the condensation channel outlet pipe of the dual channel water cooled condenser of this unit is communicated with the water inlet manifold of air-source unit by corresponding cross valve, the condensation channel water inlet pipe of dual channel water cooled condenser is communicated with the outfall sewer of air-source unit with thermal source water pump by corresponding cross valve, form the Low Temperature Thermal in parallel with aforementioned hot pump in low temp unit heat source water closed circuit and reclaim source pump heat source water closed circuit, the recuperation of heat passage outlet pipe of dual channel water cooled condenser is then communicated with the water inlet manifold of described domestic hot-water's unit, recuperation of heat passage water inlet pipe is communicated with the outfall sewer of domestic hot-water's unit by heat-exchanger pump, form Low Temperature Thermal reclaim source pump hot water circulation loop and to domestic hot-water's unit heating, when domestic hot-water needs to heat, close thermal source water pump, start heat-exchanger pump, import recuperation of heat passage in domestic hot-water and circulate, make heat conduction in domestic hot-water, complete after heating until domestic hot-water, stop heat-exchanger pump, start thermal source water pump, heat diffuses in air by air-source unit,

3) as still regional air conditioner unit institute chilling requirement cannot be met, then can continue to open all the other Low Temperature Thermals and reclaim source pump, its low-temperature receiver water-flow circuit and aforementioned hot pump in low temp unit low-temperature receiver water-flow circuit are connected in parallel, its heat source water closed circuit and aforementioned hot pump in low temp unit heat source water closed circuit are connected in parallel, accordingly, its hot water circulation loop and former hotter water closed circuit are connected in parallel, jointly to domestic hot-water's unit heating;

Now, the condensation channel of dual channel condenser plays conventional condenser heat sinking function, recuperation of heat passage then can heating domestic hot water, a part of Btu utilization is got up, its usage factor depends on domestic hot-water's temperature and the water yield, as recuperation of heat passage institute calorific requirement is comparatively large, even can close condensation channel, net quantity of heat is all recycled.

As preferably, its winter operation operating mode comprises independent heating operation operating mode and winter heating and supplying hot water cooperation operating mode in winter, and its rate-determining steps is as follows:

Winter independent heating operation operating mode

1) hot pump in low temp unit heating operation, now, the water-cooled evaporimeter outlet pipe of this unit is communicated with the water inlet manifold of air-source unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with low-temperature receiver water pump, form hot pump in low temp unit low-temperature receiver water-flow circuit and absorb heat from air, and the single channel water cooled condenser outlet pipe of this unit is communicated with the water inlet manifold of air-conditioning unit by corresponding cross valve, single channel condenser water inlet pipe is communicated with the outfall sewer of air-conditioning unit by corresponding cross valve with thermal source water pump, form hot pump in low temp unit heat source water closed circuit to air-conditioning unit heat supply,

2) as air-conditioning unit institute calorific requirement cannot be met, then can open all the other hot pump in low temp units successively, for increasing heating capacity, its heat source water closed circuit and aforementioned hot pump in low temp unit heat source water closed circuit are connected in parallel, common to air-conditioning unit heat supply, its low-temperature receiver water-flow circuit and aforementioned hot pump in low temp unit low-temperature receiver water-flow circuit are connected in parallel;

3) as hot pump in low temp unit cannot meet air-conditioning unit institute calorific requirement, then can open Low Temperature Thermal and reclaim source pump heating operation, now, the water-cooled evaporimeter outlet pipe of this unit is communicated with the water inlet manifold of air-source unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with low-temperature receiver water pump, form the low-temperature receiver water-flow circuit that the Low Temperature Thermal in parallel with hot pump in low temp unit low-temperature receiver water-flow circuit reclaims source pump, and the condensation channel outlet pipe of the dual channel water cooled condenser of this unit is communicated with the water inlet manifold of air-conditioning unit by corresponding cross valve, condensation channel water inlet pipe is then communicated with the outfall sewer of air-conditioning unit with thermal source water pump by corresponding cross valve, form the heat source water closed circuit that the Low Temperature Thermal in parallel with hot pump in low temp unit heat source water closed circuit reclaims source pump, the recuperation of heat passage of dual channel water cooled condenser is then closed, not productive life hot water, in such cases, Low Temperature Thermal reclaims source pump and is equal to hot pump in low temp unit, be equivalent to add source pump quantity,

4) as still air-conditioning unit institute calorific requirement cannot be met, then can open all the other Low Temperature Thermals successively and reclaim source pump, its low-temperature receiver water-flow circuit and aforementioned Low Temperature Thermal reclaim source pump low-temperature receiver water-flow circuit and are connected in parallel, its heat source water closed circuit and aforementioned Low Temperature Thermal reclaim source pump heat source water closed circuit and are connected in parallel, jointly to air-conditioning unit heat supply;

This kind of operating mode and common water-cooled central air-conditioning heating mode, the heat that train condenser produces by the fan coil terminal of air-conditioning unit imports, make air conditioning area temperature reach requirement, unit evaporimeter is then exchanged by the cooling tower of air-source unit and atmospheric heat and is absorbed heat from air.

Winter heating and supplying hot water cooperation operating mode

1) one or more hot pump in low temp unit heating operation, now, the water-cooled evaporimeter outlet pipe of unit is communicated with the water inlet manifold of air-source unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with low-temperature receiver water pump, form hot pump in low temp unit low-temperature receiver water-flow circuit and absorb heat from air, and the single channel water cooled condenser outlet pipe of unit is communicated with the water inlet manifold of air-conditioning unit by corresponding cross valve, single channel condenser water inlet pipe is communicated with the outfall sewer of air-conditioning unit by corresponding cross valve with thermal source water pump, form hot pump in low temp unit heat source water closed circuit to air-conditioning unit heat supply, in such cases, unit evaporimeter is exchanged by the cooling tower of air-source unit and atmospheric heat and is absorbed heat from air, and the condensation channel of unit single channel condenser is then to air-conditioning unit heat supply,

2) simultaneously, Low Temperature Thermal reclaims source pump heating operation, now, the water-cooled evaporimeter outlet pipe of this unit is communicated with the water inlet manifold of air-source unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with low-temperature receiver water pump, form the low-temperature receiver water-flow circuit that the Low Temperature Thermal in parallel with hot pump in low temp unit low-temperature receiver water-flow circuit reclaims source pump, and the condensation channel outlet pipe of the dual channel water cooled condenser of this unit is communicated with the water inlet manifold of air-conditioning unit by corresponding cross valve, condensation channel water inlet pipe is then communicated with the outfall sewer of air-conditioning unit with thermal source water pump by corresponding cross valve, form the heat source water closed circuit that the Low Temperature Thermal in parallel with hot pump in low temp unit heat source water closed circuit reclaims source pump, heat diffusion is in air-conditioning unit, the recuperation of heat passage outlet pipe of dual channel water cooled condenser is then communicated with the water inlet manifold of domestic hot-water's unit, recuperation of heat passage water inlet pipe is communicated with the outfall sewer of domestic hot-water's unit by heat-exchanger pump, form Low Temperature Thermal reclaim source pump hot water circulation loop and to domestic hot-water's unit heating water, when domestic hot-water needs to heat, start heat-exchanger pump, domestic hot-water imports recuperation of heat passage and circulates, partial heat is made to conduct in domestic hot-water, complete after heating until domestic hot-water, stop heat-exchanger pump, heat all diffuses in air-conditioning unit,

3) as air-conditioning unit institute calorific requirement cannot be met, then can open all the other Low Temperature Thermals successively and reclaim source pump, its low-temperature receiver water-flow circuit and aforementioned Low Temperature Thermal reclaim source pump low-temperature receiver water-flow circuit and are connected in parallel, common and atmospheric heat exchanges, its heat source water closed circuit and aforementioned Low Temperature Thermal reclaim source pump heat source water closed circuit and are connected in parallel, common to air-conditioning unit heat supply, accordingly, its hot water circulation loop and former hotter water closed circuit are connected in parallel, jointly to domestic hot-water's unit heating;

Under this kind of operating mode, this unit evaporimeter is exchanged by the cooling tower of air-source unit and atmospheric heat and is absorbed heat from air, the condensation channel of this unit dual channel condenser is then to air-conditioning unit heat supply, and recuperation of heat passage then to domestic hot-water's heating, meets the demand of user.

As preferably, when its conditioning in Transition Season operating condition comprises complete cold recovery operating condition, supplying hot water when only utilizing indoor/outdoor temperature-difference to regulate temperature operating condition, supplying hot water remaining cold recovery operating condition and subregion refrigeration with heat cooperation operating mode, its rate-determining steps is as follows:

Indoor/outdoor temperature-difference is only utilized to regulate temperature operating condition

1) hot pump in low temp unit and Low Temperature Thermal recovery source pump are all closed;

2) the side exchange end of plate type heat exchanger II is connected to the Inlet and outlet water house steward of air-conditioning unit respectively, form air-conditioning unit low-temperature receiver water circulation unit, and the opposite side exchange end of plate type heat exchanger II is connected to the Inlet and outlet water house steward of air-source unit respectively, form the heat source water cycling element of air-source unit, the cold in the external world or heat, by plate type heat exchanger II and the heat exchange of air-source unit, import indoor by air-conditioning unit;

Under this kind of operating mode, the cold in outside atmosphere or heat, by means of only plate type heat exchanger II and the heat exchange of air-source unit, are imported air conditioning area, reach energy-conservation object by air-conditioning unit.

Complete cold recovery operating condition during supplying hot water

1) hot pump in low temp unit is closed;

2) Low Temperature Thermal reclaims source pump heating operation, now, the water-cooled evaporimeter outlet pipe of this unit is communicated with the water inlet manifold of air-conditioning unit with the side exchange end of plate type heat exchanger II by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-conditioning unit by corresponding cross valve with low-temperature receiver water pump, form Low Temperature Thermal and reclaim source pump low-temperature receiver water-flow circuit, air-source unit then forms a closed circuit with the opposite side exchange end of plate type heat exchanger II, the recuperation of heat passage outlet pipe of dual channel water cooled condenser is communicated with the water inlet manifold of described domestic hot-water's unit, recuperation of heat passage water inlet pipe is communicated with the outfall sewer of domestic hot-water's unit by heat-exchanger pump, form the hot water circulation loop that Low Temperature Thermal reclaims source pump, as air-conditioning unit chilling requirement is not enough, then can open the closed circuit of air-source unit, by atmospheric environment additional heat,

3) hot water circulation loop as separate unit Low Temperature Thermal recovery source pump cannot meet heating capacity needed for domestic hot-water's unit, then can open all the other Low Temperature Thermals successively and reclaim source pump, the hot water circulation loop that its hot water circulation loop and aforementioned Low Temperature Thermal reclaim source pump is connected in parallel, common to domestic hot-water's unit heating, the low-temperature receiver water-flow circuit that its low-temperature receiver water-flow circuit and aforementioned Low Temperature Thermal reclaim source pump is connected in parallel, common to air-conditioning unit cooling, the condensation channel of its dual channel water cooled condenser is in closed condition;

Under this kind of operating mode, the recuperation of heat passage of unit dual channel condenser heats domestic hot-water, and its condensation channel is closed, can not outwardly airborne release heat, the cold of generation is then imported air-conditioning unit by unit evaporimeter completely, and the cold that unit produces is fully exploited.

Remaining cold recovery operating condition during supplying hot water

1) hot pump in low temp unit is closed;

2) Low Temperature Thermal reclaims source pump refrigerating operaton, the water-cooled evaporimeter of this unit is connected with air-source unit and plate type heat exchanger II, form the low-temperature receiver water circulation unit that Low Temperature Thermal reclaims source pump, unit dual channel water cooled condenser condensation channel then close, its recuperation of heat passage is then connected with domestic hot-water's unit, form Low Temperature Thermal reclaim source pump hot water circulation loop and to domestic hot-water's unit heating, air-conditioning unit is then connected with the opposite side exchange end of plate type heat exchanger II by the water-cooled evaporimeter of hot pump in low temp unit, form air-conditioning unit low-temperature receiver water-flow circuit,

3) heating capacity needed for domestic hot-water's unit cannot be met as separate unit Low Temperature Thermal reclaims source pump, then can open all the other Low Temperature Thermals successively and reclaim source pump, the hot water circulation loop that its hot water circulation loop and aforementioned Low Temperature Thermal reclaim source pump is connected in parallel, common to domestic hot-water's unit heating, the low-temperature receiver water-flow circuit that its low-temperature receiver water-flow circuit and aforementioned Low Temperature Thermal reclaim source pump is connected in parallel, common to air-conditioning unit cooling by plate type heat exchanger II, its condensation channel is then in closed condition;

Under this kind of operating mode, the recuperation of heat passage of unit dual channel condenser heats domestic hot-water, its condensation channel is closed, can not outwardly airborne release heat, and unit evaporimeter is connected with air-source unit and plate type heat exchanger II and absorbs heat from air, part cold then imports air-conditioning unit by plate type heat exchanger, reaches remaining cold recovery during supplying hot water.

Subregion cold and heat combined supply operating condition

1) hot pump in low temp unit refrigerating operaton, the water-cooled evaporimeter outlet pipe of this unit connects the pipeline of some block that need freeze in air-conditioning unit by pipeline converting unit, form hot pump in low temp unit low-temperature receiver water-flow circuit to this block cooling, and the single channel water cooled condenser outlet pipe of this unit is communicated with air-source unit by pipeline converting unit, form hot pump in low temp unit heat source water closed circuit and to air heat release;

2) as separate unit hot pump in low temp unit cannot meet this block institute chilling requirement, then can open all the other hot pump in low temp units successively, the low-temperature receiver water-flow circuit of its low-temperature receiver water-flow circuit and aforementioned hot pump in low temp unit is connected in parallel, common to this block cooling, its heat source water closed circuit is then connected in parallel, jointly to air heat release with the heat source water closed circuit of aforementioned hot pump in low temp unit;

3) simultaneously, Low Temperature Thermal reclaims source pump heating operation, this unit water-cooled evaporimeter connects air-source unit, form the low-temperature receiver water-flow circuit that the Low Temperature Thermal in parallel with aforementioned hot pump in low temp unit heat source water closed circuit reclaims source pump, the condensation channel of this unit dual channel water cooled condenser then connect separately air-conditioning unit by pipeline converting unit all the other need heat supply block, form Low Temperature Thermal and reclaim source pump heat source water closed circuit to this block heat supply, the recuperation of heat passage outlet pipe of dual channel water cooled condenser is then communicated with the water inlet manifold of domestic hot-water's unit, recuperation of heat passage water inlet pipe is communicated with the outfall sewer of domestic hot-water's unit by heat-exchanger pump, form Low Temperature Thermal reclaim source pump hot water circulation loop and to domestic hot-water's unit heating,

4) this heat supply block institute calorific requirement cannot be met as separate unit Low Temperature Thermal reclaims source pump, then can open all the other Low Temperature Thermals successively and reclaim source pump, the heat source water closed circuit that its heat source water closed circuit and aforementioned Low Temperature Thermal reclaim source pump is connected in parallel, common to this block heat supply, its heat recovery circuit then reclaims source pump heat recovery cycle loop with aforementioned Low Temperature Thermal is connected in parallel, and its low-temperature receiver water-flow circuit then reclaims source pump low-temperature receiver water-flow circuit with aforementioned Low Temperature Thermal is connected in parallel;

Under this kind of operating mode, refrigerated area and heating zone can be divided into flexibly in whole air conditioning area, and come cooling or heat supply by different source pump or dissimilar source pump, meet the specific demand of user, and the evaporimeter that the condenser of hot pump in low temp unit and Low Temperature Thermal reclaim source pump accesses air-source unit all simultaneously, cold and hot amount merges mutually, reaches the heat exchange amount reduced or eliminated with air, reduces the impact on atmospheric environment.

The invention has the beneficial effects as follows: central air conditioner system is connected by the conversion of the many groups cross valve in pipeline converting unit, multiple functional unit is organically combined, the air-conditioning instructions for use of user's different mode, difference in functionality and Various Seasonal can be met, both the use cost of central air-conditioning had been reduced, environmental protection and energy saving again, reduce the impact on environment.

Accompanying drawing explanation

Fig. 1 is a kind of system schematic of the present invention.

Fig. 2 is the separate refrigeration operating condition schematic diagram in summer of Fig. 1 system.

Fig. 3 is the ice conserve cold refrigerating operaton operating mode schematic diagram in summer of Fig. 1 system.

Fig. 4 is cooling in summer and the supplying hot water cooperation operating mode schematic diagram of Fig. 1 system.

Fig. 5 is the independent heating operation operating mode schematic diagram in winter of Fig. 1 system.

Fig. 6 is winter heating and the supplying hot water cooperation operating mode schematic diagram of Fig. 1 system.

Fig. 7 is that the indoor/outdoor temperature-difference that only utilizes of Fig. 1 system regulates temperature operating condition schematic diagram.

Fig. 8 is complete cold recovery operating condition schematic diagram when being the supplying hot water of Fig. 1 system.

Remaining cold recovery operating condition schematic diagram when Fig. 9 is the supplying hot water of Fig. 1 system.

Figure 10 is the subregion cold and heat combined supply operating condition schematic diagram of Fig. 1 system.

Figure 11 is the open type hot-water heating system schematic diagram of domestic hot-water's unit.

Figure 12 is the system schematic reclaiming detecting unit with anti-icing fluid.

1. heat pump units in figure, 11. hot pump in low temp units, 12. Low Temperature Thermals reclaim source pump, 2. air-conditioning unit, 3. air-source unit, 4. domestic hot-water's unit, 5. ice conserve cold unit, 51. plate type heat exchangers I, 6. pipeline converting unit, 61. low-temperature receiver water pumps, 62. thermal source water pumps, 63. cross valve assembly, 7. heat-exchanger pumps, 8. plate type heat exchanger II, 9. anti-icing fluid reclaims detecting unit.

Detailed description of the invention

Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.

Embodiment 1: a kind of Multifunctional central air-conditioning system of the present embodiment 1, as shown in Figure 1, comprise heat pump unit, air-conditioning unit, air-source unit, ice conserve cold unit, pipeline converting unit and domestic hot-water's unit, be interconnected by pipeline between each unit, heat pump unit reclaims source pump by a hot pump in low temp unit and two Low Temperature Thermals and forms, pipeline converting unit comprises three the low-temperature receiver water pumps reclaiming source pump evaporimeter respectively with hot pump in low temp unit evaporimeter and Low Temperature Thermal and be connected, three thermal source water pumps and six cross valve assemblies that source pump condenser is connected are reclaimed respectively with hot pump in low temp train condenser and Low Temperature Thermal, wherein hot pump in low temp unit comprises compressor, water-cooled evaporimeter and single channel water cooled condenser, the external low-temperature receiver water pump of this water-cooled evaporimeter also accesses pipeline converting unit, the external thermal source water pump of this single channel water cooled condenser also accesses pipeline converting unit, Low Temperature Thermal wherein reclaims source pump and comprises compressor, water-cooled evaporimeter and dual channel water cooled condenser, the external low-temperature receiver water pump of this water-cooled evaporimeter also accesses pipeline converting unit, this dual channel water cooled condenser is made up of condensation channel and recuperation of heat passage, wherein condensation channel accesses pipeline converting unit and connects thermal source water pump, the other end of this thermal source water pump is then connected with air-source unit, recuperation of heat passage is then connected with the Inlet and outlet water house steward of domestic hot-water's unit by heat-exchanger pump, domestic hot-water's unit both can adopt closed type hot water system, also open type hot-water heating system as shown in figure 11 can be adopted.

Plate type heat exchanger I is had at ice conserve cold Unit Design, the side exchange end of plate type heat exchanger I is connected with air-conditioning unit, opposite side exchange end is then connected with Ice Storage Tank pipeline, and under some operating mode, air-conditioning unit carries out heat exchange by plate type heat exchanger I and Ice Storage Tank.

And between air-source unit and air-conditioning unit, be also designed with plate type heat exchanger II, the side exchange end of plate type heat exchanger II is connected with air-conditioning unit pipeline, opposite side exchange end is connected with air-source unit pipeline, under some operating mode, air-conditioning unit carries out heat exchange by plate type heat exchanger II and air-source unit.

When Multifunctional central air-conditioning system uses, different according to season, its progress control method can be divided into operation condition in summer control, winter operation operating conditions and conditioning in Transition Season operating condition to control.

Wherein operation condition in summer comprise again separate refrigeration operating condition in summer, summer ice conserve cold refrigerating operaton operating mode and cooling in summer and supplying hot water cooperation operating mode, its rate-determining steps is as follows:

Summer separate refrigeration operating condition, as shown in Figure 2:

2) as hot pump in low temp unit cannot meet air-conditioning unit institute chilling requirement, then can open Low Temperature Thermal and reclaim source pump refrigerating operaton, now, this unit water-cooled evaporimeter outlet pipe is communicated with the water inlet manifold of air-conditioning unit by the corresponding cross valve in pipeline converting unit, the water inlet pipe of water-cooled evaporimeter is communicated with the outfall sewer of air-conditioning unit with low-temperature receiver water pump by corresponding cross valve, form the Low Temperature Thermal in parallel with hot pump in low temp unit low-temperature receiver water-flow circuit and reclaim source pump low-temperature receiver water-flow circuit, the condensation channel outlet pipe of the dual channel water cooled condenser of this unit is communicated with the water inlet manifold of air-source unit by corresponding cross valve, condensation channel water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with thermal source water pump, form the Low Temperature Thermal in parallel with hot pump in low temp unit heat source water closed circuit and reclaim source pump heat source water closed circuit, the recuperation of heat passage of dual channel water cooled condenser is then closed, do not produce hot water,

3) air-conditioning unit institute chilling requirement cannot still be met as increased a Low Temperature Thermal recovery source pump, then can continue to open an other Low Temperature Thermal successively and reclaim source pump, for increasing refrigerating capacity, its low-temperature receiver water-flow circuit and aforementioned Low Temperature Thermal reclaim source pump low-temperature receiver water-flow circuit and are connected in parallel, and its heat source water closed circuit and aforementioned Low Temperature Thermal reclaim source pump heat source water closed circuit and be connected in parallel.

Summer ice conserve cold refrigerating operaton operating mode, as shown in Figure 3:

1) Low Temperature Thermal recovery source pump is all closed, only hot pump in low temp unit refrigerating operaton, now, the water-cooled evaporimeter outlet pipe of this unit is communicated with the water inlet manifold of ice conserve cold unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of ice conserve cold unit by corresponding cross valve with low-temperature receiver water pump, form hot pump in low temp unit low-temperature receiver water-flow circuit and the Ice Storage Tank in ice conserve cold unit is freezed, and the single channel water cooled condenser outlet pipe of this unit is communicated with the water inlet manifold of air-source unit by corresponding cross valve, single channel water cooled condenser water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with thermal source water pump, form hot pump in low temp unit heat source water closed circuit, simultaneously, the side exchange end of the plate type heat exchanger I of ice conserve cold unit communicates with Ice Storage Tank, opposite side exchange end communicates with air-conditioning unit, ice conserve cold unit is by plate type heat exchanger I and air-conditioning unit heat exchange and to air-conditioning unit cooling,

2) as cold in Ice Storage Tank is enough to meet air-conditioning unit institute chilling requirement, then can close hot pump in low temp unit, or stage enables hot pump in low temp unit.

Cooling in summer and supplying hot water cooperation operating mode, as shown in Figure 4:

1) hot pump in low temp unit refrigerating operaton, the water-cooled evaporimeter outlet pipe of this unit is communicated with air-conditioning unit water inlet manifold by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with air-conditioning unit outfall sewer by corresponding cross valve with low-temperature receiver water pump, form hot pump in low temp unit low-temperature receiver water-flow circuit to air-conditioning unit cooling, and the single channel water cooled condenser outlet pipe of unit is communicated with the water inlet manifold of air-source unit by corresponding cross valve, the water inlet pipe of single channel condenser is communicated with the outfall sewer of air-source unit with thermal source water pump by corresponding cross valve, form hot pump in low temp unit heat source water closed circuit to air heat release,

2) simultaneously, open Low Temperature Thermal and reclaim source pump, now, the water-cooled evaporimeter outlet pipe of this unit is communicated with the water inlet manifold of air-conditioning unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-conditioning unit by corresponding cross valve with low-temperature receiver water pump, form the Low Temperature Thermal in parallel with aforementioned hot pump in low temp unit low-temperature receiver water-flow circuit and reclaim source pump low-temperature receiver water-flow circuit, and the condensation channel outlet pipe of the dual channel water cooled condenser of this unit is communicated with the water inlet manifold of air-source unit by corresponding cross valve, the condensation channel water inlet pipe of dual channel water cooled condenser is communicated with the outfall sewer of air-source unit with thermal source water pump by corresponding cross valve, form the Low Temperature Thermal in parallel with aforementioned hot pump in low temp unit heat source water closed circuit and reclaim source pump heat source water closed circuit, the recuperation of heat passage outlet pipe of dual channel water cooled condenser is then communicated with the water inlet manifold of domestic hot-water's unit, recuperation of heat passage water inlet pipe is communicated with the outfall sewer of domestic hot-water's unit by heat-exchanger pump, form Low Temperature Thermal reclaim source pump hot water circulation loop and to domestic hot-water's unit heating,

3) as still regional air conditioner unit institute chilling requirement cannot be met, then can continue to open an other Low Temperature Thermal and reclaim source pump, its low-temperature receiver water-flow circuit and aforementioned hot pump in low temp unit low-temperature receiver water-flow circuit are connected in parallel, its heat source water closed circuit and aforementioned hot pump in low temp unit heat source water closed circuit are connected in parallel, accordingly, its hot water circulation loop and former hotter water closed circuit are connected in parallel, jointly to domestic hot-water's unit heating.

Winter operation operating mode wherein comprises again independent heating operation operating mode and winter heating and supplying hot water cooperation operating mode in winter, and its rate-determining steps is as follows,

Winter independent heating operation operating mode, as shown in Figure 5:

3) as hot pump in low temp unit cannot meet air-conditioning unit institute calorific requirement, then can open Low Temperature Thermal and reclaim source pump heating operation, now, the water-cooled evaporimeter outlet pipe of this unit is communicated with the water inlet manifold of air-source unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with low-temperature receiver water pump, form the low-temperature receiver water-flow circuit that the Low Temperature Thermal in parallel with hot pump in low temp unit low-temperature receiver water-flow circuit reclaims source pump, and the condensation channel outlet pipe of the dual channel water cooled condenser of this unit is communicated with the water inlet manifold of air-conditioning unit by corresponding cross valve, condensation channel water inlet pipe is then communicated with the outfall sewer of air-conditioning unit with thermal source water pump by corresponding cross valve, form the heat source water closed circuit that the Low Temperature Thermal in parallel with hot pump in low temp unit heat source water closed circuit reclaims source pump, the recuperation of heat passage of dual channel water cooled condenser is then closed, not productive life hot water,

4) as still air-conditioning unit institute calorific requirement cannot be met, then can continue an other Low Temperature Thermal and reclaim source pump, its low-temperature receiver water-flow circuit and aforementioned Low Temperature Thermal reclaim source pump low-temperature receiver water-flow circuit and are connected in parallel, its heat source water closed circuit and aforementioned Low Temperature Thermal reclaim source pump heat source water closed circuit and are connected in parallel, jointly to air-conditioning unit heat supply.

Winter heating and supplying hot water cooperation operating mode, as shown in Figure 6:

1) hot pump in low temp unit heating operation, now, the water-cooled evaporimeter outlet pipe of unit is communicated with the water inlet manifold of air-source unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with low-temperature receiver water pump, form hot pump in low temp unit low-temperature receiver water-flow circuit and absorb heat from air, and the single channel water cooled condenser outlet pipe of unit is communicated with the water inlet manifold of air-conditioning unit by corresponding cross valve, single channel condenser water inlet pipe is communicated with the outfall sewer of air-conditioning unit by corresponding cross valve with thermal source water pump, form hot pump in low temp unit heat source water closed circuit to air-conditioning unit heat supply,

2) simultaneously, Low Temperature Thermal reclaims source pump heating operation, now, the water-cooled evaporimeter outlet pipe of this unit is communicated with the water inlet manifold of air-source unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with low-temperature receiver water pump, form the low-temperature receiver water-flow circuit that the Low Temperature Thermal in parallel with hot pump in low temp unit low-temperature receiver water-flow circuit reclaims source pump, and the condensation channel outlet pipe of the dual channel water cooled condenser of this unit is communicated with the water inlet manifold of air-conditioning unit by corresponding cross valve, condensation channel water inlet pipe is then communicated with the outfall sewer of air-conditioning unit with thermal source water pump by corresponding cross valve, form the heat source water closed circuit that the Low Temperature Thermal in parallel with hot pump in low temp unit heat source water closed circuit reclaims source pump, the recuperation of heat passage outlet pipe of dual channel water cooled condenser is then communicated with the water inlet manifold of domestic hot-water's unit, recuperation of heat passage water inlet pipe is communicated with the outfall sewer of domestic hot-water's unit by heat-exchanger pump, form Low Temperature Thermal reclaim source pump hot water circulation loop and to domestic hot-water's unit heating water,

3) as air-conditioning unit institute calorific requirement cannot be met, then can continue to open an other Low Temperature Thermal and reclaim source pump, its low-temperature receiver water-flow circuit and aforementioned Low Temperature Thermal reclaim source pump low-temperature receiver water-flow circuit and are connected in parallel, common and atmospheric heat exchanges, its heat source water closed circuit and aforementioned Low Temperature Thermal reclaim source pump heat source water closed circuit and are connected in parallel, common to air-conditioning unit heat supply, accordingly, its hot water circulation loop and former hotter water closed circuit are connected in parallel, jointly to domestic hot-water's unit heating.

When conditioning in Transition Season operating condition wherein comprises again complete cold recovery operating condition, supplying hot water when only utilizing indoor/outdoor temperature-difference to regulate temperature operating condition, supplying hot water remaining cold recovery operating condition and subregion refrigeration with heat cooperation operating mode, its rate-determining steps is as follows,

Indoor/outdoor temperature-difference is only utilized to regulate temperature operating condition, as shown in Figure 7:

2) the side exchange end of plate type heat exchanger II is connected to the Inlet and outlet water house steward of air-conditioning unit respectively, form air-conditioning unit low-temperature receiver water circulation unit, and the opposite side exchange end of plate type heat exchanger II is connected to the Inlet and outlet water house steward of air-source unit respectively, form the heat source water cycling element of air-source unit, the cold in the external world or heat, by plate type heat exchanger II and the heat exchange of air-source unit, import indoor by air-conditioning unit.

Complete cold recovery operating condition during supplying hot water, as shown in Figure 8:

1) hot pump in low temp unit is closed;

2) Low Temperature Thermal reclaims source pump refrigerating operaton, now, the water-cooled evaporimeter outlet pipe of this unit is communicated with the water inlet manifold of air-conditioning unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-conditioning unit by corresponding cross valve with low-temperature receiver water pump, form Low Temperature Thermal and reclaim source pump low-temperature receiver water-flow circuit, the recuperation of heat passage outlet pipe of dual channel water cooled condenser is communicated with the water inlet manifold of described domestic hot-water's unit, recuperation of heat passage water inlet pipe is communicated with the outfall sewer of domestic hot-water's unit by heat-exchanger pump, form the hot water circulation loop that Low Temperature Thermal reclaims source pump, the condensation channel of dual channel water cooled condenser is then closed,

3) hot water circulation loop as separate unit Low Temperature Thermal recovery source pump cannot meet heating capacity needed for domestic hot-water's unit, then can open an other Low Temperature Thermal successively and reclaim source pump, the hot water circulation loop that its hot water circulation loop and aforementioned Low Temperature Thermal reclaim source pump is connected in parallel, common to domestic hot-water's unit heating, the low-temperature receiver water-flow circuit that its low-temperature receiver water-flow circuit and aforementioned Low Temperature Thermal reclaim source pump is connected in parallel, common to air-conditioning unit cooling, the condensation channel of its dual channel water cooled condenser is in closed condition.

Remaining cold recovery operating condition during supplying hot water, as shown in Figure 9:

1) hot pump in low temp unit is closed;

2) Low Temperature Thermal reclaims source pump refrigerating operaton, the water-cooled evaporimeter of this unit is connected with air-source unit and plate type heat exchanger II, form the low-temperature receiver water circulation unit that Low Temperature Thermal reclaims source pump, unit dual channel water cooled condenser condensation channel then close, its recuperation of heat passage is then connected with domestic hot-water's unit, form Low Temperature Thermal reclaim source pump hot water circulation loop and to domestic hot-water's unit heating, air-conditioning unit Inlet and outlet water house steward is then connected with the opposite side exchange end of plate type heat exchanger II respectively, form air-conditioning unit low-temperature receiver water-flow circuit,

3) heating capacity needed for domestic hot-water's unit cannot be met as separate unit Low Temperature Thermal reclaims source pump, then can open an other Low Temperature Thermal successively and reclaim source pump, the hot water circulation loop that its hot water circulation loop and aforementioned Low Temperature Thermal reclaim source pump is connected in parallel, common to domestic hot-water's unit heating, the low-temperature receiver water-flow circuit that its low-temperature receiver water-flow circuit and aforementioned Low Temperature Thermal reclaim source pump is connected in parallel, common to air-conditioning unit cooling by plate type heat exchanger II, its condensation channel is then in closed condition;

Subregion cold and heat combined supply operating condition, as shown in Figure 10:

2) simultaneously, Low Temperature Thermal reclaims source pump heating operation, this unit water-cooled evaporimeter connects air-source unit, form the low-temperature receiver water-flow circuit that the Low Temperature Thermal in parallel with aforementioned hot pump in low temp unit heat source water closed circuit reclaims source pump, the condensation channel of this unit dual channel water cooled condenser then connect separately air-conditioning unit by pipeline converting unit all the other need heat supply block, form Low Temperature Thermal and reclaim source pump heat source water closed circuit and to this block heat supply;

3) simultaneously, Low Temperature Thermal reclaims source pump heating operation, this unit water-cooled evaporimeter connects air-source unit, form the low-temperature receiver water-flow circuit that the Low Temperature Thermal in parallel with aforementioned hot pump in low temp unit heat source water closed circuit reclaims source pump, the condensation channel of this unit dual channel water cooled condenser then connect separately air-conditioning unit by pipeline converting unit all the other need heat supply block, form Low Temperature Thermal and reclaim source pump heat source water closed circuit to this block heat supply, dual channel water cooled condenser recuperation of heat passage outlet pipe is then communicated with the water inlet manifold of domestic hot-water's unit, recuperation of heat passage water inlet pipe is communicated with the outfall sewer of domestic hot-water's unit by heat-exchanger pump, form Low Temperature Thermal reclaim source pump hot water circulation loop and to domestic hot-water's unit heating, when domestic hot-water need heat, start heat-exchanger pump, domestic hot-water to be imported in recuperation of heat passage and to circulate, as domestic hot-water has heated, then stop heat-exchanger pump and close recuperation of heat passage,

4) this heat supply block institute calorific requirement cannot be met as separate unit Low Temperature Thermal reclaims source pump, then can open another Low Temperature Thermal and reclaim source pump, the heat source water closed circuit that its heat source water closed circuit and aforementioned Low Temperature Thermal reclaim source pump is connected in parallel, common to this block heat supply, its low-temperature receiver water-flow circuit then reclaims source pump low-temperature receiver water-flow circuit with aforementioned Low Temperature Thermal is connected in parallel.

Embodiment 2: a kind of Multifunctional central air-conditioning system of the present embodiment 2, as shown in figure 12, comprise heat pump unit, air-conditioning unit, air-source unit, ice conserve cold unit, pipeline converting unit, domestic hot-water's unit and anti-icing fluid reclaim detecting unit, be interconnected by pipeline between each unit, anti-icing fluid reclaims detecting unit and is connected with air-source unit pipe, for in the winter time or need detect time the circulating water reclamation in air-source unit is stored, prevent from freezing, also water quality detection and adjustment can be carried out simultaneously, the other parts of the present embodiment 2 all with the appropriate section of embodiment 1 roughly the same, repeat no more herein.

In describing the invention; technical term " on ", D score, "front", "rear", "left", "right", " interior ", " outward " etc. represent that direction or position relationship are based on direction shown in the drawings or position relationship; be only for convenience of description with understanding technical scheme of the present invention; more than illustrate and not restriction has been done to the present invention; the present invention is also not limited only to the citing of above-mentioned explanation; the change that those skilled in the art make in essential scope of the present invention, retrofit, increase or replace, all should be considered as protection scope of the present invention.

Claims

1. a Multifunctional central air-conditioning system, is characterized in that: described system comprises

Heat pump unit (1), reclaims source pump (12) by hot pump in low temp unit (11) and Low Temperature Thermal and forms, for supplying cold-peace heat supply;

Air-conditioning unit (2), comprises and organizes fan coil more, regulates for using the temperature in region;

Air-source unit (3), for the heat exchange of low-temperature receiver water or heat source water and ambient air outside;

Domestic hot-water's unit (4), for providing domestic hot-water, the condenser pipe reclaiming source pump with described Low Temperature Thermal is connected;

Ice conserve cold unit (5), for storing the refrigerating capacity that hot pump in low temp unit produces, comprise Ice Storage Tank, described Ice Storage Tank is connected with the evaporator pipeline of described hot pump in low temp unit;

Pipeline converting unit (6), comprise reclaim source pump evaporimeter respectively with hot pump in low temp unit evaporimeter and Low Temperature Thermal and be connected low-temperature receiver water pump (61), reclaim thermal source water pump (62) that source pump condenser is connected and multiple cross valve assembly (63) with hot pump in low temp train condenser and Low Temperature Thermal respectively, be connected with pipeline change of condenser with above-mentioned each unit for described evaporimeter;

Be interconnected by pipeline between described each unit.

2. a kind of Multifunctional central air-conditioning system according to claim 1, it is characterized in that: described heat pump unit (1) comprises multiple stage hot pump in low temp unit (11) and multiple stage Low Temperature Thermal reclaims source pump (12), described hot pump in low temp unit comprises compressor, water-cooled evaporimeter and single channel water cooled condenser, the external described low-temperature receiver water pump (61) of this water-cooled evaporimeter also accesses described pipeline converting unit (6), the external described thermal source water pump (62) of this single channel water cooled condenser also accesses pipeline converting unit, described Low Temperature Thermal reclaims source pump and comprises compressor, water-cooled evaporimeter and dual channel water cooled condenser, the external low-temperature receiver water pump of this water-cooled evaporimeter also accesses pipeline converting unit, this dual channel water cooled condenser is made up of condensation channel and recuperation of heat passage, wherein condensation channel accesses pipeline converting unit and connects thermal source water pump, the other end of this thermal source water pump is then connected with described air-source unit (3), recuperation of heat passage is then connected with described domestic hot-water's unit (4) by heat-exchanger pump (7).

3. a kind of Multifunctional central air-conditioning system according to claim 1, it is characterized in that: described ice conserve cold unit (5) is provided with plate type heat exchanger I (51), the side exchange end of described plate type heat exchanger I is connected with described air-conditioning unit (2), opposite side exchange end is then connected with described Ice Storage Tank pipeline, and air-conditioning unit carries out heat exchange by plate type heat exchanger I and Ice Storage Tank.

4. a kind of Multifunctional central air-conditioning system according to claim 1, it is characterized in that: between described air-source unit (3) and air-conditioning unit (2), be also provided with plate type heat exchanger II (8), the side exchange end of described plate type heat exchanger II is connected with air-conditioning unit pipeline, opposite side exchange end is connected with air-source unit pipeline, and air-conditioning unit carries out heat exchange by plate type heat exchanger II and air-source unit.

5. a kind of Multifunctional central air-conditioning system according to claim 1 or 2 or 3 or 4, it is characterized in that: described system is also provided with the anti-icing fluid be connected with described air-source unit (3) and reclaims detecting unit (9), carry out detecting or regulating for the anti-icing fluid that reclaims in stored air source unit.

6. a kind of Multifunctional central air-conditioning system according to claim 1, is characterized in that: described domestic hot-water's unit (4) is open type hot-water heating system or closed type hot water system.

7. the progress control method of a Multifunctional central air-conditioning system, described Multifunctional central air-conditioning system comprises heat pump unit, air-conditioning unit, air-source unit, ice conserve cold unit, pipeline converting unit and domestic hot-water's unit, be interconnected by pipeline between each unit, heat pump unit comprises multiple stage hot pump in low temp unit and multiple stage Low Temperature Thermal reclaims source pump, and its control method comprises operation condition in summer control, winter operation operating conditions and conditioning in Transition Season operating condition and controls.

8. the control method of Multifunctional central air-conditioning system according to claim 7, its operation condition in summer comprise separate refrigeration operating condition in summer, summer ice conserve cold refrigerating operaton operating mode and cooling in summer and supplying hot water cooperation operating mode, its rate-determining steps is as follows:

Summer separate refrigeration operating condition

3) as hot pump in low temp unit cannot meet air-conditioning unit institute chilling requirement, then can continue to open Low Temperature Thermal and reclaim source pump refrigerating operaton, now, this unit water-cooled evaporimeter outlet pipe is communicated with the water inlet manifold of air-conditioning unit by the corresponding cross valve in pipeline converting unit, the water inlet pipe of water-cooled evaporimeter is communicated with the outfall sewer of air-conditioning unit with low-temperature receiver water pump by corresponding cross valve, form the Low Temperature Thermal in parallel with hot pump in low temp unit low-temperature receiver water-flow circuit and reclaim source pump low-temperature receiver water-flow circuit, the condensation channel outlet pipe of the dual channel water cooled condenser of this unit is communicated with the water inlet manifold of air-source unit by corresponding cross valve, condensation channel water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with thermal source water pump, form the Low Temperature Thermal in parallel with hot pump in low temp unit heat source water closed circuit and reclaim source pump heat source water closed circuit, the recuperation of heat passage of dual channel water cooled condenser is then closed, do not produce hot water,

Summer ice conserve cold refrigerating operaton operating mode

2) as cold in Ice Storage Tank is enough to meet air-conditioning unit institute chilling requirement, then can close hot pump in low temp unit, or stage enables hot pump in low temp unit;

Cooling in summer and supplying hot water cooperation operating mode

3) as still regional air conditioner unit institute chilling requirement cannot be met, then can continue to open all the other Low Temperature Thermals and reclaim source pump, its low-temperature receiver water-flow circuit and aforementioned hot pump in low temp unit low-temperature receiver water-flow circuit are connected in parallel, its heat source water closed circuit and aforementioned hot pump in low temp unit heat source water closed circuit are connected in parallel, accordingly, its hot water circulation loop and former hotter water closed circuit are connected in parallel, jointly to domestic hot-water's unit heating.

9. the control method of Multifunctional central air-conditioning system according to claim 7, its winter operation operating mode comprises independent heating operation operating mode and winter heating and supplying hot water cooperation operating mode in winter, and its rate-determining steps is as follows:

Winter independent heating operation operating mode

Winter heating and supplying hot water cooperation operating mode

1) one or more hot pump in low temp unit heating operation, now, the water-cooled evaporimeter outlet pipe of unit is communicated with the water inlet manifold of air-source unit by the corresponding cross valve in pipeline converting unit, water-cooled evaporimeter water inlet pipe is communicated with the outfall sewer of air-source unit by corresponding cross valve with low-temperature receiver water pump, form hot pump in low temp unit low-temperature receiver water-flow circuit and absorb heat from air, and the single channel water cooled condenser outlet pipe of unit is communicated with the water inlet manifold of air-conditioning unit by corresponding cross valve, single channel condenser water inlet pipe is communicated with the outfall sewer of air-conditioning unit by corresponding cross valve with thermal source water pump, form hot pump in low temp unit heat source water closed circuit to air-conditioning unit heat supply,

3) as air-conditioning unit institute calorific requirement cannot be met, then can open all the other Low Temperature Thermals successively and reclaim source pump, its low-temperature receiver water-flow circuit and aforementioned Low Temperature Thermal reclaim source pump low-temperature receiver water-flow circuit and are connected in parallel, common and atmospheric heat exchanges, its heat source water closed circuit and aforementioned Low Temperature Thermal reclaim source pump heat source water closed circuit and are connected in parallel, common to air-conditioning unit heat supply, accordingly, its hot water circulation loop and former hotter water closed circuit are connected in parallel, jointly to domestic hot-water's unit heating.

10. the control method of Multifunctional central air-conditioning system according to claim 7, remaining cold recovery operating condition and subregion cold and heat combined supply operating condition when its conditioning in Transition Season operating condition comprises complete cold recovery operating condition, supplying hot water when only utilizing indoor/outdoor temperature-difference to regulate temperature operating condition, supplying hot water, its rate-determining steps is as follows:

Complete cold recovery operating condition during supplying hot water

1) hot pump in low temp unit is closed;

Remaining cold recovery operating condition during supplying hot water

1) hot pump in low temp unit is closed;

Subregion cold and heat combined supply operating condition

3) simultaneously, Low Temperature Thermal reclaims source pump heating operation, this unit water-cooled evaporimeter connects air-source unit, form the low-temperature receiver water-flow circuit that the Low Temperature Thermal in parallel with aforementioned hot pump in low temp unit heat source water closed circuit reclaims source pump, the condensation channel of this unit dual channel water cooled condenser then connect separately air-conditioning unit by pipeline converting unit all the other need heat supply block, form Low Temperature Thermal and reclaim source pump heat source water closed circuit to this block heat supply, dual channel water cooled condenser recuperation of heat passage outlet pipe is then communicated with the water inlet manifold of domestic hot-water's unit, recuperation of heat passage water inlet pipe is communicated with the outfall sewer of domestic hot-water's unit by heat-exchanger pump, form Low Temperature Thermal reclaim source pump hot water circulation loop and to domestic hot-water's unit heating,

4) this heat supply block institute calorific requirement cannot be met as separate unit Low Temperature Thermal reclaims source pump, then can open all the other Low Temperature Thermals successively and reclaim source pump, the heat source water closed circuit that its heat source water closed circuit and aforementioned Low Temperature Thermal reclaim source pump is connected in parallel, common to this block heat supply, its heat recovery circuit then reclaims source pump heat recovery cycle loop with aforementioned Low Temperature Thermal is connected in parallel, and its low-temperature receiver water-flow circuit then reclaims source pump low-temperature receiver water-flow circuit with aforementioned Low Temperature Thermal is connected in parallel.