CN105805946A - Heat pump type large temperature difference heat exchange system and method - Google Patents
Heat pump type large temperature difference heat exchange system and method Download PDFInfo
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- CN105805946A CN105805946A CN201610314222.XA CN201610314222A CN105805946A CN 105805946 A CN105805946 A CN 105805946A CN 201610314222 A CN201610314222 A CN 201610314222A CN 105805946 A CN105805946 A CN 105805946A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
- F24H4/04—Storage heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- 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]
- Y02B30/62—Absorption based systems
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses a heat pump type large temperature difference heat exchange system and method. A generator, an absorber, a condenser and evaporators are arranged in a heat pump/refrigerator. The heat pump/refrigerator, water-water heat exchangers, a first-network-water water way and a second-network-water water way are combined and connected through valves and pipelines. The multiple evaporators are arranged. One or more water-water heat exchangers are arranged. When the multiple water-water heat exchangers are arranged, the water-water heat exchangers are connected in series, and the multiple evaporators are connected in series or independently and externally connected. When the multiple evaporators are connected in series, the multiple evaporators, primary parts of the water-water heat exchangers and the generator in the heat pump/refrigerator are connected in the first-network-water water way in series together. When the multiple evaporators are independently and externally connected, the multiple evaporators are connected in the first-network-water water way and the second-network-water water way in series correspondingly. The water supply and return temperature difference of first-network water is enlarged, the heating network conveying capability is improved, due to the low water return temperature of the first-network water, the problems about heat insulation, heat compensation and the like of a water return pipe network can be solved, and the pipe network investment cost and the transmission and distribution energy consumption of the first-network water can be greatly reduced.
Description
Technical field
The invention belongs to heating engineering technical field, particularly to a kind of pump type heat big temperature difference heat-exchange system and method.
Background technology
Along with the continuous extension of urban size, matched heat demand is also continuously increased, and high-temperature-hot-water generally requires
The problems such as extra long distance conveying gets to heat exchange station or heat user position, and Pipeline transport energy consumption is not enough with local heat supply greatly are day by day
Highlight.
Traditional heat exchanger system, a net water and two net water are needed to there is certain heat transfer temperature difference could realize
Effect heat exchange, this determines a net water return water temperature the most theoretically and is higher than two net water return water temperatures, thus limits a net water
Confession, backwater temperature difference.How under conditions of existing heating network and guarantee user's heat are unaffected, by a net water return water temperature
It is reduced under two net water return water temperatures, widens a net water confession, backwater temperature difference to raising heat supply network conveying capacity, reduction heat supply network investment
And operation cost is significant.
Summary of the invention
The technical problem to be solved is: solves the problem that above-mentioned prior art exists, and provides a kind of heat pump
Type big temperature difference heat-exchange system and method, by heat pump/refrigerating machine and water-water heat exchanger, absorb a net hydro-thermal amount and shifted
Supply water to two net water, increase a net water confession, backwater temperature difference, improve heat supply network conveying capacity, and a low return water temperature of net water can be exempted
The problems such as return pipe net insulation and thermal compensation, thus can greatly reduce pipe network investment cost and a net water transmission & distribution energy consumption.
The technical solution used in the present invention is: a kind of pump type heat big temperature difference heat-exchange system, including heat pump/refrigerating machine, water-water
Heat exchanger, a net water water route, two net water water routes, be provided with in described heat pump/refrigerating machine generator, absorber, condenser and
Vaporizer, heat pump/refrigerating machine, water-water heat exchanger, a net water water route and two net water water routes are combined even by valve and pipeline
Connect；Described vaporizer is multiple, and described water-water heat exchanger is one or more, and water-water heat exchanger is connected in series when being multiple,
Multiple evaporator series connect or the most external；When multiple evaporator series connect, multiple vaporizers and water-water heat exchange
Generator in device primary, heat pump/refrigerating machine is serially connected in a net water water route together；When multiple vaporizers are the most external,
Multiple vaporizers are serially connected in a net water water route respectively and neutralize in two net water water routes.
In technique scheme, the plurality of vaporizer is serially connected in a net water water route respectively and neutralizes the tool in two net water water routes
Body structure is: vaporizer (E1) is serially connected in a net water water together with the generator in water-water heat exchanger primary, heat pump/refrigerating machine
Lu Zhong, vaporizer (E2) is gone here and there together with water-water heat exchanger in two net water water routes.
In technique scheme, the absorber in described heat pump/refrigerating machine and condenser series connection, absorber one end after series connection
Connect two net water water return pipelines, the condenser one end after series connection be directly connected to two net water supply channels or be connected to multiple water-
The connection midpoint of water-to-water heat exchanger secondary tandem.
In technique scheme, described heat pump/refrigerating machine, water-water heat exchanger, a net water water route, two net water water routes are passed through
The concrete structure that valve and pipeline are combined connecting is: a net water supply channel connects heat pump/refrigerating machine (1) by the first valve
Generator (G) input, generator (G) outfan is connected at the beginning of one or more series connection water-water heat exchanger by the 3rd valve
Level input, the outfan of one or more series connection water-water heat exchangers primary connects heat pump/refrigerating machine (1) by the 4th valve
1# vaporizer (E1) input, 1# vaporizer (E1) outfan is connected to a net water water return pipeline by the 5th valve, the 9th valve；?
Connect between one or more series connection water-water heat exchanger outfans and a net water water return pipeline and have the 8th valve, supply water at a net water
It is connected between pipeline with one or more series connection water-water heat exchanger primary input terminals and has the second valve；Two net water water return pipelines are divided into
The input of two: absorber (A) being connected heat pump/refrigerating machine (1) by the 20th valve, absorber (A) and condenser
(C) connecting, the outfan of condenser (C) is connected to two net water supply channel or multiple series connection by the 19th valve, the 16th valve
Contact in the secondary concatenation of water-water heat exchanger；Another of two net water water return pipelines is connected to heat by the 17th valve, the 7th valve
2# vaporizer (E2) input of pump/refrigeration machine (1), the outfan of 2# vaporizer is connected to one by the 6th valve, the 13rd valve
Individual or that multiple series connection water-water heat exchanger is secondary input, the secondary outfan of one or more series connection water-water heat exchangers connects
To two net water supply channels；Connect between the 5th valve outfan and the 6th valve outfan of 2# vaporizer of 1# vaporizer and have the
Ten valves and the 12nd valve, connect between the 7th valve input and the first net water water return pipeline of 2# vaporizer and have the 11st valve,
Be connected between two net water water return pipelines with one or more series connection water-water heat exchanger secondary inputs the 14th valve, the 15th
Valve, connects between the 20th valve input and the 19th valve outfan of condenser of absorber and has the 18th valve.
A kind of pump type heat big temperature difference heat-exchange method, based on heat pump/refrigerating machine, water-water heat exchanger, a net water water route, two nets
Water water route, is provided with generator, absorber, condenser and multiple vaporizer, described water-water heat exchange in described heat pump/refrigerating machine
Device is one or more, and water-water heat exchanger is connected in series when being multiple, heat pump/refrigerating machine, water-water heat exchanger, a net water water route
It is connected into one of following big temperature difference heat-exchange method by valve and pipeline with two net water water routes:
1) a net water water supply series connection generator for heat pump/refrigerating machine, water-water heat exchanger primary, the 1# vaporizer of heat pump/refrigerating machine
Rear access one net water backwater；Two net water backwater connect after being divided into two: the series connection absorber of heat pump/refrigerating machine, a condenser
Supply water to two net water, be connected to two net water after another series connection the 2# vaporizer of heat pump/refrigerating machine, water-water heat exchanger secondary and supply
Water；
2) a net water water supply series connection generator for heat pump/refrigerating machine, water-water heat exchanger 1# primary, heat pump/refrigerating machine evaporate
A net water backwater is accessed after device, 2# vaporizer；Two net water backwater bifurcations: the series connection absorber of heat pump/refrigerating machine, a condensation
It is connected to two net water after device supply water, is connected to two net water after another series connection water-water heat exchanger secondary and supplies water；
3) it is connected to a net water backwater, two net water backwater series connection water-water heat exchange after a net water water supply series connection water-water heat exchanger primary
It is connected to two net water after device secondary supply water；
4) a net water water supply series connection generator for heat pump/refrigerating machine, the primary of water water-to-water heat exchanger, the 1# of heat pump/refrigerating machine steam
It is connected to a net water backwater after sending out device；It is connected to one after one tunnel two net water backwater the series connection absorber of heat pump/refrigerating machine, condenser
Road two net water supplies water；Another road two net water backwater series connection 2# vaporizer of heat pump/refrigerating machine, water-water heat exchanger secondary after connect
It is connected to another road two net water supply water；
5) a net water water supply series connection generator for heat pump/refrigerating machine, the primary of water-water heat exchanger, the 1# evaporation of heat pump/refrigerating machine
A net water backwater it is connected to after device, 2# vaporizer；After one tunnel two net water backwater the series connection absorber of heat pump/refrigerating machine, condenser
It is connected to a road two net water supply water, after the secondary of another road two net water backwater series connection water-water heat exchanger, is connected to another road two net
Water supplies water；
6) net water water supply the series connection generator of heat pump/refrigerating machine, the primary of two grades of water-water heat exchangers, an one-level water-water heat exchanger
Primary, heat pump/refrigerating machine 1# vaporizer after be connected to a net water backwater；Two net water backwater are divided into two: a series connection heat
The secondary string secondary with two grades of water-water heat exchangers of one-level water-water heat exchanger it is connected to after the absorber of pump/refrigeration machine, condenser
Connection midpoint, another connect the 2# vaporizer of heat pump/refrigerating machine, the secondary of one-level water-water heat exchanger, two grades of water-water heat exchangers
Secondary after be connected to two net water supply water；
7) net water water supply the series connection generator of heat pump/refrigerating machine, the primary of two grades of water-water heat exchangers, an one-level water-water heat exchanger
Primary, the 1# vaporizer of heat pump/refrigerating machine, be connected to a net water backwater after 2# vaporizer；Two net water backwater bifurcations: one
One-level water-water heat exchanger it is connected to secondary secondary with two grades of water-water heat exchangers after the series connection absorber of heat pump/refrigerating machine, condenser
The series connection midpoint of level, is connected to two net water after another series connection one-level water-water heat exchanger secondary, two grades of water-water heat exchanger secondary
Supply water.
8) it is connected to one after the primary of a net water water supply series connection primary for two grades of water-water heat exchangers, one-level water-water heat exchanger
Net water backwater；Two net water backwater series connection the secondary of one-level water-water heat exchanger, two grades of water-water heat exchangers secondary after be connected to two
Net water supplies water.
In technique scheme, described pump type heat big temperature difference heat-exchange method, specific practice is: the height supplied water by a net water
Warm water, as driving heat source, is entered by the first valve (3) in the heat exchanger tube of heat pump/refrigerating machine (1) generator (G), adds outside heat pipe
The lithium bromide weak solution of side, to boiling, produces refrigerant vapour and lithium bromide concentrated solution, and a net water high-temperature water is dropped by generator (G)
Wen Houjing is entered water-water heat exchanger (2) by the 3rd valve (5), heats two net water, it is achieved lower the temperature further, the net water after cooling
Enter the heat exchanger tube of heat pump/refrigerating machine (1) 1# vaporizer (E1) via the 4th valve (6), sprayed by the water as refrigerant outside pipe, cold
Agent water is evaporated to refrigerant vapour, absorbs a net water backwater heat, and after heat release cooling, a net water flows through the 5th valve (7) and the 9th again
Valve (11) returns a net water return pipe net；Two net water backwater are divided into two, and one is entered via the 17th valve (19) and the 7th valve (9)
Entering the heat exchanger tube of the 2# vaporizer (E2) of heat pump/refrigerating machine (1), sprayed by the water as refrigerant outside pipe, water as refrigerant is evaporated to cryogen
Steam, this two nets water heat release is lowered the temperature, is transferred heat to another two nets water branch, by heat pump/system after this two nets water for cooling
After cold (1) flows out, enter water-water heat exchanger (2) through the 6th valve (8) and the 13rd valve (15), carry out heat exchange with a net water
Heat up；Another two nets water enters the heat exchanger tube of absorber (A) of heat pump/refrigerating machine (1) through the 20th valve (22), by pipe outside
The lithium bromide concentrated solution spray of side, concentrated solution absorbs and produces from the 1# vaporizer (E1) of the same space and 2# vaporizer (E2)
Refrigerant vapour, refrigerant vapour contains substantial amounts of heat of evaporation, and heat transfer, to two net water in heat exchanger tube, makes this two nets water water temperature liter
High；Two net water after intensification enter in condenser (C) heat exchanger tube, have and occur from the same space outside condenser (C) heat exchanger tube
The refrigerant vapour that device (G) produces, absorbs the heat in refrigerant vapour, completes the secondary temperature elevation of this two nets water, this two nets water
Flowing through the 19th valve (21) and the 16th valve (18) mixes with another two nets water afterwards, mixed two net water enter two nets
Water supply channel；Second valve (4) in system, the 8th valve (10), the tenth valve (12), the 11st valve (13), the 12nd valve (14),
14 valves (16), the 15th valve (17), the 18th valve (20) are closed mode.
In technique scheme, described pump type heat big temperature difference heat-exchange method, specific practice is: the height supplied water by a net water
Warm water, as driving heat source, is entered by the first valve (3) in the heat exchanger tube of heat pump/refrigerating machine (1) generator (G) and adds outside heat pipe
Lithium bromide weak solution to boiling, produce refrigerant vapour and lithium bromide concentrated solution, a net water high-temperature water is lowered the temperature by generator (G)
Entering water-water heat exchanger (2) by by the 3rd valve (5), heat two net water, it is achieved lower the temperature further, the net water after cooling depends on
Secondary flow through the 4th valve (6), the heat exchanger tube of heat pump/refrigerating machine (1) 1# vaporizer (E1), the 5th valve (7), the tenth valve (12), the tenth
Two valves (14), the 6th valve (8) and the heat exchanger tube of heat pump/refrigerating machine (1) 2# vaporizer (E2), the 1# evaporation of heat pump/refrigerating machine (1)
A net water in the heat exchanger tube of device (E1) and 2# vaporizer (E2) is sprayed by the water as refrigerant outside pipe, and water as refrigerant is evaporated to cryogen and steams
Vapour, absorbs a net water backwater heat, and the net water after heat release cooling flows through the 7th valve (9) and the 11st valve (13) returns one again
Net water return pipe net；Two net water backwater are divided into two, and one enters water-water heat exchanger (2) via the 14th valve (16), with a net
Water carries out heat exchange intensification；Another two nets water enters changing of absorber (A) of heat pump/refrigerating machine (1) through the 20th valve (22)
Heat pipe, is sprayed by the lithium bromide concentrated solution outside pipe, and concentrated solution absorbs the 1# vaporizer (E1) from the same space and 2# evaporation
The refrigerant vapour that device (E2) produces, refrigerant vapour contains substantial amounts of heat of evaporation, and heat transfer, to two net water in heat exchanger tube, makes this
Two net water water temperatures raise；Two net water after intensification enter in condenser (C) heat exchanger tubes, have outside condenser (C) heat exchanger tube from
The refrigerant vapour that the same space generator (G) produces, absorbs the heat in refrigerant vapour, completes the secondary liter of this two nets water
Temperature, this two nets water flows through the 19th valve (21) and the 16th valve (18) mixes with another two nets water afterwards, mixed
Two net water enter two net water supply channels；The second valve (4) in system, the 8th valve (10), the 9th valve (11), the 13rd valve
(15), the 15th valve (17), the 17th valve (19), the 18th valve (20) are closed mode.
In technique scheme, described pump type heat big temperature difference heat-exchange method, specific practice is: done by a net water high-temperature water
For driving heat source, entered by the first valve (3) in the heat exchanger tube of heat pump/refrigerating machine (1) generator (G) and add the bromination outside heat pipe
Lithium weak solution, to boiling, produces refrigerant vapour and lithium bromide concentrated solution, a net water high-temperature water lowered the temperature by generator (G) after through by
3rd valve (5) sequentially enters two grades of water-water heat exchangers (2.2) and one-level water-water heat exchanger (2.1), heats two net water, it is achieved
Cooling further, the net water after cooling enters the heat exchanger tube of heat pump/refrigerating machine (1) 1# vaporizer (E1) via the 4th valve (6),
Being sprayed by the water as refrigerant outside pipe, water as refrigerant is evaporated to refrigerant vapour, absorbs a net water backwater heat, again after heat release cooling one
Net water flows through the 5th valve (7) and the 9th valve (11) returns a net water return pipe net；Two net water backwater are divided into two, and one via
17 valves (19) and the 7th valve (9) enter the heat exchanger tube of the 2# vaporizer (E2) of heat pump/refrigerating machine (1), by the cryogen outside pipe
Water spray, water as refrigerant is evaporated to refrigerant vapour, and this two nets water heat release is lowered the temperature, and transfers heat to another two nets water branch, this
After being flowed out by heat pump/refrigerating machine (1) after propping up two net water for cooling, enter one-level water-water through the 6th valve (8) and the 13rd valve (15)
Heat exchanger (2.1), carries out heat exchange intensification with a net water.Another two nets water enters heat pump/refrigerating machine through the 20th valve (22)
(1) heat exchanger tube of absorber (A), is sprayed by the lithium bromide concentrated solution outside pipe, and concentrated solution absorbs the 1# from the same space
The refrigerant vapour that vaporizer (E1) and 2# vaporizer (E2) produce, refrigerant vapour contains substantial amounts of heat of evaporation, and heat transfer is to heat exchange
Two net water in pipe, make this two nets water water temperature raise；Two net water after intensification enter in condenser (C) heat exchanger tube, condenser
(C) there is the refrigerant vapour produced from the same space generator (G) outside heat exchanger tube, absorb the heat in refrigerant vapour, complete
The secondary temperature elevation of this two nets water, this two nets water flow through the 19th valve (21) and the 16th valve (18) afterwards with another two nets water
Mixing, after mixing, two net water two grades of water-water heat exchangers (2.2) of entrance are heated up again, and two net water after intensification enter
Two net water supply channels.Second valve (4), the 8th valve (10), the tenth valve (12), the 11st valve (13), the 12nd valve in system
(14), the 14th valve (16), the 15th valve (17), the 18th valve (20) are closed mode.
In technique scheme, described big temperature difference heat pump heat-exchange method, specific practice is: by a net water high-temperature water as
Driving heat source, is entered by the first valve (3) in the heat exchanger tube of heat pump/refrigerating machine (1) generator (G) and adds the lithium bromide outside heat pipe
Weak solution, to boiling, produces refrigerant vapour and lithium bromide concentrated solution, a net water high-temperature water lowered the temperature by generator (G) after through by the
Three valves (5) sequentially enter two grades of water-water heat exchangers (2.2) and one-level water-water heat exchanger (2.1), heat two net water, it is achieved enter
One step cooling, the net water after cooling flow through successively the 4th valve (6), the heat exchanger tube of heat pump/refrigerating machine (1) 1# vaporizer (E1),
5th valve (7), the tenth valve (12), the 12nd valve (14), the 6th valve (8) and the heat exchange of heat pump/refrigerating machine (1) 2# vaporizer (E2)
Pipe, the net water in the 1# vaporizer (E1) of heat pump/refrigerating machine (1) and the heat exchanger tube of 2# vaporizer (E2) is by the cryogen outside pipe
Water spray, water as refrigerant is evaporated to refrigerant vapour, absorbs a net water backwater heat, and after heat release cooling, a net water flows through the 7th valve again
And the 11st valve (13) returns a net water return pipe net (9).Two net water backwater are divided into two, and one via through the 14th valve
(16) enter one-level water-water heat exchanger (2.1), carry out heat exchange intensification with a net water.Another two nets water is through the 20th valve
(22) entering the heat exchanger tube of the absorber (A) of heat pump/refrigerating machine (1), sprayed by the lithium bromide concentrated solution outside pipe, concentrated solution is inhaled
Receiving the refrigerant vapour produced from 1# vaporizer (E1) and the 2# vaporizer (E2) of the same space, refrigerant vapour contains substantial amounts of steaming
Heating, heat transfer, to two net water in heat exchanger tube, makes this two nets water water temperature raise；Two net water after intensification enter condenser
(C) in heat exchanger tube, outside condenser (C) heat exchanger tube, there is the refrigerant vapour produced from the same space generator (G), absorb cryogen
Heat in steam, completes the secondary temperature elevation of this two nets water, and this two nets water flows through the 19th valve (21) and the 16th valve
(18) mixing with another two nets water afterwards, after mixing, two net water two grades of water-water heat exchangers (2.2) of entrance rise again
Temperature, two net water after intensification enter two net water supply channels.Second valve (4), the 8th valve (10), the 9th valve in this embodiment
(11), the 13rd valve (15), the 15th valve (17), the 17th valve (19), the 18th valve (20) are closed mode.
In technique scheme, during heat pump/refrigerating machine (1) maintaining, only open the second valve (4), the 8th valve (10) and
15th valve (17), remaining valve is turned off, and is isolated by heat pump/refrigerating machine (1) from system.
Relative to traditional heat supply mode, the present invention has the following advantages and effect:
The present invention absorbs a net hydro-thermal amount and transfers them to two net water water supply, and a net water return water temperature is reduced to two net water
Under return water temperature, widen a net water confession, backwater temperature difference, improve heat supply network conveying capacity, and a low return water temperature of net water can
Exempt the problems such as return pipe net insulation and thermal compensation, thus can greatly reduce pipe network investment cost and a net water transmission & distribution energy consumption.Special
It not that the present invention uses multi-evaporator structure, the two net coolant-temperature gages entering water-water heat exchanger can be controlled at easy structure temperature (60
DEG C) below, ACU fouling, it is ensured that the heat exchange efficiency of equipment.
Accompanying drawing explanation
Fig. 1 is the first embodiment schematic diagram of the present invention；
Fig. 2 is the second embodiment schematic diagram of the present invention；
Fig. 3 is the third embodiment schematic diagram of the present invention；
Fig. 4 is the 4th kind of embodiment schematic diagram of the present invention；
Fig. 5 is the 5th kind of embodiment schematic diagram of the present invention；
Fig. 6 is the 6th kind of embodiment schematic diagram of the present invention；
Fig. 7 is the 7th kind of embodiment schematic diagram of the present invention；
Fig. 8 is the 8th kind of embodiment schematic diagram of the present invention.
Description of reference numerals:
1-heat pump/refrigerating machine, 2-water-water heat exchanger, 3-the first valve, 4-the second valve, 5-the 3rd valve, 6-the 4th valve, 7-the 5th valve,
8-the 6th valve, 9-the 7th valve, 10-the 8th valve, 11-the 9th valve, 12-the tenth valve, 13-the 11st valve, 14-the 12nd valve,
15-the 13rd valve, 16-the 14th valve, 17-the 15th valve, 18-the 16th valve, 19-the 17th valve, 20-the 18th valve,
21-the 19th valve, 22-the 20th valve, A-absorber, C-condenser, G-generator, E1-1# vaporizer,
E2-2# vaporizer, 2.1-one-level water-water heat exchanger, bis-grades of water-water heat exchangers of 2.2-.
Detailed description of the invention
A kind of pump type heat big temperature difference heat-exchange unit and system, including heat pump/refrigerating machine (1), one or more water-water heat exchange
The parts such as device (2), a net water-water route and two net water-water route, are connected by valve, pipeline between each several part.
According to the different switchings of valve group, the present invention can realize following example:
Embodiment 1(is shown in Fig. 1): a net water high-temperature water, as driving heat source, enters heat pump/refrigerating machine (1) by the first valve (3) and sends out
The heat exchanger tube of raw device (G) adds the lithium bromide weak solution outside heat pipe extremely seethe with excitement, generation refrigerant vapour and lithium bromide concentrated solution, one
After net water high-temperature water is lowered the temperature by generator (G), warp is entered a water-water heat exchanger (2) by the 3rd valve (5), heats two net water, real
Lowering the temperature the most further, the net water after cooling enters the heat exchange of heat pump/refrigerating machine (1) 1# vaporizer (E1) via the 4th valve (6)
Pipe, is sprayed by the water as refrigerant outside pipe, and water as refrigerant is evaporated to refrigerant vapour, absorbs a net water backwater heat, again heat release cooling
A rear net water flows through the 5th valve (7) and the 9th valve (11) returns a net water return pipe net.
Two net water backwater are divided into two, and one enters heat pump/refrigerating machine (1) via the 17th valve (19) and the 7th valve (9)
The heat exchanger tube of 2# vaporizer (E2), sprayed by the water as refrigerant outside pipe, water as refrigerant is evaporated to refrigerant vapour, this two nets water
Heat release is lowered the temperature, and transfers heat to another two nets water branch, after being flowed out by heat pump/refrigerating machine (1) after this two nets water for cooling, and warp
Cross the 6th valve (8) and the 13rd valve (15) enters water-water heat exchanger (2), carry out heat exchange intensification with a net water.Another two nets water
The heat exchanger tube of the absorber (A) of heat pump/refrigerating machine (1) is entered, by the lithium bromide concentrated solution outside pipe through the 20th valve (22)
Spray, concentrated solution absorbs the refrigerant vapour produced from 1# vaporizer (E1) and the 2# vaporizer (E2) of the same space, cryogen steaming
Vapour contains substantial amounts of heat of evaporation, and heat transfer, to two net water in heat exchanger tube, makes this two nets water water temperature raise；Two nets after intensification
Water enters in condenser (C) heat exchanger tube, has the cryogen produced from the same space generator (G) outside condenser (C) heat exchanger tube
Steam, absorbs the heat in refrigerant vapour, completes the secondary temperature elevation of this two nets water, and this two nets water flows through the 19th valve (21)
Mixing with another two nets water afterwards with the 16th valve (18), mixed two net water enter two net water supply channels.At this
Second valve (4), the 8th valve (10), the tenth valve (12), the 11st valve (13), the 12nd valve (14), the 14th valve in embodiment
(16), the 15th valve (17), the 18th valve (20) are closed mode.
For exporting two net water of two strands of different parameters, described in embodiment 1, the Liang Ge branch of two net water can be two bursts of independences
Two net water, these two strands two independent net water have the most disconnected, independent secondary grid (see figure 4).
Embodiment 2(is shown in Fig. 2): a net water high-temperature water, as driving heat source, enters heat pump/refrigerating machine by the first valve (3)
(1) heat exchanger tube of generator (G) adds the extremely boiling of the lithium bromide weak solution outside heat pipe, produces refrigerant vapour and lithium bromide is dense molten
Liquid, after a net water high-temperature water is lowered the temperature by generator (G), warp is entered a water-water heat exchanger (2) by the 3rd valve (5), heats two nets
Water, it is achieved lower the temperature further, the net water after cooling flows through the 4th valve (6), heat pump/refrigerating machine (1) 1# vaporizer (E1) successively
Heat exchanger tube, the 5th valve (7), the tenth valve (12), the 12nd valve (14), the 6th valve (8) and heat pump/refrigerating machine (1) 2# vaporizer
(E2) the net water in heat exchanger tube, the 1# vaporizer (E1) of heat pump/refrigerating machine (1) and the heat exchanger tube of 2# vaporizer (E2) is managed
The water as refrigerant spray in outside, water as refrigerant is evaporated to refrigerant vapour, absorbs a net water backwater heat, the again net after heat release cooling
Water flows through the 7th valve (9) and the 11st valve (13) returns a net water return pipe net.
Two net water backwater are divided into two, and one enters water-water heat exchanger (2) via through the 14th valve (16), with a net
Water carries out heat exchange intensification.Another two nets water enters changing of absorber (A) of heat pump/refrigerating machine (1) through the 20th valve (22)
Heat pipe, is sprayed by the lithium bromide concentrated solution outside pipe, and concentrated solution absorbs the 1# vaporizer (E1) from the same space and 2# evaporation
The refrigerant vapour that device (E2) produces, refrigerant vapour contains substantial amounts of heat of evaporation, and heat transfer, to two net water in heat exchanger tube, makes this
Two net water water temperatures raise；Two net water after intensification enter in condenser (C) heat exchanger tubes, have outside condenser (C) heat exchanger tube from
The refrigerant vapour that the same space generator (G) produces, absorbs the heat in refrigerant vapour, completes the secondary liter of this two nets water
Temperature, this two nets water flows through the 19th valve (21) and the 16th valve (18) mixes with another two nets water afterwards, mixed
Two net water enter two net water supply channels.In this embodiment the second valve (4), the 8th valve (10), the 9th valve (11), the 13rd
Valve (15), the 15th valve (17), the 17th valve (19), the 18th valve (20) are closed mode.
For exporting two net water of two strands of different parameters, described in embodiment 1, the Liang Ge branch of two net water can be two bursts of independences
Two net water, these two strands two independent net water have the most disconnected, independent secondary grid (see figure 5).
In embodiment 1 and embodiment 2, only open the second valve (4), the 8th valve (10) and the 15th valve (17), remaining valve
Group is turned off, and can realize isolating heat pump/refrigerating machine (1) from system, be maintained maintenance (see figure 3) to facilitate.
Embodiment 3(is shown in Fig. 6): a net water high-temperature water, as driving heat source, enters heat pump/refrigerating machine by the first valve (3)
(1) heat exchanger tube of generator (G) adds the extremely boiling of the lithium bromide weak solution outside heat pipe, produces refrigerant vapour and lithium bromide is dense molten
Liquid, after a net water high-temperature water is lowered the temperature by generator (G), warp is sequentially entered two grades of water-water heat exchangers (2.2) by the 3rd valve (5)
With one-level water-water heat exchanger (2.1), heating two net water, it is achieved lower the temperature further, the net water after cooling is via the 4th valve (6)
Entering the heat exchanger tube of heat pump/refrigerating machine (1) 1# vaporizer (E1), sprayed by the water as refrigerant outside pipe, water as refrigerant is evaporated to cryogen
Steam, absorbs a net water backwater heat, and after heat release cooling, a net water flows through the 5th valve (7) and the 9th valve (11) returns a net again
Water return pipe net.
Two net water backwater are divided into two, and one enters heat pump/refrigerating machine (1) via the 17th valve (19) and the 7th valve (9)
The heat exchanger tube of 2# vaporizer (E2), sprayed by the water as refrigerant outside pipe, water as refrigerant is evaporated to refrigerant vapour, this two nets water
Heat release is lowered the temperature, and transfers heat to another two nets water branch, after being flowed out by heat pump/refrigerating machine (1) after this two nets water for cooling, and warp
Cross the 6th valve (8) and the 13rd valve (15) enters one-level water-water heat exchanger (2.1), carry out heat exchange intensification with a net water.Another
Two net water enter the heat exchanger tube of the absorber (A) of heat pump/refrigerating machine (1) through the 20th valve (22), by the lithium bromide outside pipe
Concentrated solution sprays, and concentrated solution absorbs the refrigerant vapour produced from 1# vaporizer (E1) and the 2# vaporizer (E2) of the same space,
Refrigerant vapour contains substantial amounts of heat of evaporation, and heat transfer, to two net water in heat exchanger tube, makes this two nets water water temperature raise；After intensification
Two net water enter in condenser (C) heat exchanger tubes, have outside condenser (C) heat exchanger tube and produce from the same space generator (G)
Refrigerant vapour, absorb the heat in refrigerant vapour, complete the secondary temperature elevation of this two nets water, this two nets water flows through the 19th
Valve (21) and the 16th valve (18) mix with another two nets water afterwards, and after mixing, two net water enter two grades of water-water heat exchangers
(2.2) again heating up, two net water after intensification enter two net water supply channels.In this embodiment the second valve (4),
Eight valves (10), the tenth valve (12), the 11st valve (13), the 12nd valve (14), the 14th valve (16), the 15th valve (17), the tenth
Eight valves (20) are closed mode.
Embodiment 4(is shown in Fig. 7): a net water high-temperature water, as driving heat source, enters heat pump/refrigerating machine by the first valve (3)
(1) heat exchanger tube of generator (G) adds the extremely boiling of the lithium bromide weak solution outside heat pipe, produces refrigerant vapour and lithium bromide is dense molten
Liquid, after a net water high-temperature water is lowered the temperature by generator (G), warp is sequentially entered two grades of water-water heat exchangers (2.2) by the 3rd valve (5)
With one-level water-water heat exchanger (2.1), heating two net water, it is achieved lower the temperature further, the net water after cooling flows through the 4th valve successively
(6), the heat exchanger tube of heat pump/refrigerating machine (1) 1# vaporizer (E1), the 5th valve (7), the tenth valve (12), the 12nd valve (14), the 6th
Valve (8) and the heat exchanger tube of heat pump/refrigerating machine (1) 2# vaporizer (E2), the 1# vaporizer (E1) of heat pump/refrigerating machine (1) and 2# steam
The net water sent out in the heat exchanger tube of device (E2) is sprayed by the water as refrigerant outside pipe, and water as refrigerant is evaporated to refrigerant vapour, absorbs a net
Water backwater heat, after heat release cooling, a net water flows through the 7th valve (9) and the 11st valve (13) returns a net water return pipe net again.
Two net water backwater are divided into two, and one enters one-level water-water heat exchanger (2.1) via through the 14th valve (16),
Heat exchange intensification is carried out with a net water.Another two nets water enters the absorber of heat pump/refrigerating machine (1) through the 20th valve (22)
(A) heat exchanger tube, is sprayed by the lithium bromide concentrated solution outside pipe, concentrated solution absorb from the same space 1# vaporizer (E1) and
The refrigerant vapour that 2# vaporizer (E2) produces, refrigerant vapour contains substantial amounts of heat of evaporation, heat transfer to two net water in heat exchanger tube,
This two nets water water temperature is made to raise；Two net water after intensification enter in condenser (C) heat exchanger tube, outside condenser (C) heat exchanger tube
There is the refrigerant vapour produced from the same space generator (G), absorb the heat in refrigerant vapour, complete the two of this two nets water
Secondary intensification, this two nets water flows through the 19th valve (21) and the 16th valve (18) mixes with another two nets water afterwards, mixing
Rear two net water enter two grades of water-water heat exchangers (2.2) and again heat up, and two net water after intensification enter two net water feed pipes
Road.In this embodiment the second valve (4), the 8th valve (10), the 9th valve (11), the 13rd valve (15), the 15th valve (17),
17 valves (19), the 18th valve (20) are closed mode.
In embodiment 3 and embodiment 4, only open the second valve (4), the 8th valve (10) and the 15th valve (17), remaining valve
Group is turned off, and can realize isolating heat pump/refrigerating machine (1) from system, be maintained maintenance (see figure 8) to facilitate.
Claims (10)
1. a pump type heat big temperature difference heat-exchange system, including heat pump/refrigerating machine, water-water heat exchanger, a net water water route, two net water
Water route, is provided with generator, absorber, condenser and vaporizer, heat pump/refrigerating machine, water-water in described heat pump/refrigerating machine
Heat exchanger, a net water water route and two net water water routes are combined connecting by valve and pipeline；It is characterized in that described vaporizer
For multiple, described water-water heat exchanger is one or more, and water-water heat exchanger is connected in series when being multiple, multiple evaporator series
Connect or the most external；When multiple evaporator series connect, multiple vaporizers are primary with water-water heat exchanger, heat pump/system
Generator in cold is serially connected in a net water water route together；When multiple vaporizers are the most external, multiple vaporizers are respectively
It is serially connected in a net water water route to neutralize in two net water water routes.
Pump type heat the most according to claim 1 big temperature difference heat-exchange system, it is characterised in that: the plurality of vaporizer is gone here and there respectively
Being connected on the concrete structure that a net water water route neutralizes in two net water water routes is: vaporizer (E1) is primary with water-water heat exchanger, heat pump/
Generator in refrigeration machine is serially connected in a net water water route together, and vaporizer (E2) is gone here and there at two net water together with water-water heat exchanger
In water route.
Pump type heat the most according to claim 1 big temperature difference heat-exchange system, it is characterised in that the suction in described heat pump/refrigerating machine
Receiving device and condenser series connection, after series connection, absorber one end connects two net water water return pipelines, and the condenser one end after series connection directly connects
Connect two net water supply channels or be connected to the connection midpoint of multiple water-water heat exchanger secondary tandem.
Pump type heat the most according to claim 1 big temperature difference heat-exchange system, it is characterised in that described heat pump/refrigerating machine, water-water
The concrete structure that heat exchanger, a net water water route, two net water water routes are combined connecting by valve and pipeline is: a net water supplies water
Pipeline connects generator (G) input of heat pump/refrigerating machine (1) by the first valve, and generator (G) outfan is by the 3rd valve even
It is connected to one or more series connection water-water heat exchanger primary input terminal, the outfan that one or more series connection water-water heat exchangers are primary
Connected 1# vaporizer (E1) input of heat pump/refrigerating machine (1) by the 4th valve, 1# vaporizer (E1) outfan passes through the 5th
Valve, the 9th valve are connected to a net water water return pipeline；Return at one or more series connection water-water heat exchanger primary output terminals and a net water
Connect between water lines and have the 8th valve, connect between water-water heat exchanger input with one or more at a net water supply channel
Connect and have the second valve；Two net water water return pipelines are divided into two: absorption being connected heat pump/refrigerating machine (1) by the 20th valve
The input of device (A), absorber (A) and condenser (C) connect, and the outfan of condenser (C) passes through the 19th valve, the 16th valve
It is connected to contact in the secondary concatenation of two net water supply channels or multiple series connection water-water heat exchanger；Two net water water return pipelines another
One 2# vaporizer (E2) input being connected to heat pump/refrigerating machine (1) by the 17th valve, the 7th valve, 2# vaporizer defeated
Go out end and be connected to, by the 6th valve, the 13rd valve, the input that one or more series connection water-water heat exchanger is secondary, one or more
The secondary output end of series connection water-water heat exchanger is connected to two net water supply channels；The 5th valve outfan and the 2# at 1# vaporizer
Connect between 6th valve outfan of vaporizer and have the tenth valve and the 12nd valve, at the 7th valve input and first of 2# vaporizer
Connect between net water water return pipeline and have the 11st valve, at two net water water return pipelines and one or more water-water heat exchangers of connecting
The 14th valve, the 15th valve is connected, at the 20th valve input and the 19th valve of condenser of absorber between level input
Connect between outfan and have the 18th valve.
5. a pump type heat big temperature difference heat-exchange method, based on heat pump/refrigerating machine, water-water heat exchanger, a net water water route, two net water
Water route, is provided with generator, absorber, condenser and multiple vaporizer, described water-water heat exchanger in described heat pump/refrigerating machine
For one or more, water-water heat exchanger is connected in series when being multiple, heat pump/refrigerating machine, water-water heat exchanger, a net water water route and
Two net water water routes are connected into one of following big temperature difference heat-exchange method by valve and pipeline:
1) a net water water supply series connection generator for heat pump/refrigerating machine, water-water heat exchanger primary, the 1# vaporizer of heat pump/refrigerating machine
Rear access one net water backwater；Two net water backwater connect after being divided into two: the series connection absorber of heat pump/refrigerating machine, a condenser
Supply water to two net water, be connected to two net water after another series connection the 2# vaporizer of heat pump/refrigerating machine, water-water heat exchanger secondary and supply
Water；
2) a net water water supply series connection generator for heat pump/refrigerating machine, water-water heat exchanger 1# primary, heat pump/refrigerating machine evaporate
A net water backwater is accessed after device, 2# vaporizer；Two net water backwater bifurcations: the series connection absorber of heat pump/refrigerating machine, a condensation
It is connected to two net water after device supply water, is connected to two net water after another series connection water-water heat exchanger secondary and supplies water；
3) it is connected to a net water backwater, two net water backwater series connection water-water heat exchange after a net water water supply series connection water-water heat exchanger primary
It is connected to two net water after device secondary supply water；
4) a net water water supply series connection generator for heat pump/refrigerating machine, the primary of water water-to-water heat exchanger, the 1# of heat pump/refrigerating machine steam
It is connected to a net water backwater after sending out device；It is connected to one after one tunnel two net water backwater the series connection absorber of heat pump/refrigerating machine, condenser
Road two net water supplies water；Connect after another road two net water backwater series connection the 2# vaporizer of heat pump/refrigerating machine, water-water heat exchanger secondary
Supply water to another road two net water；
5) a net water water supply series connection generator for heat pump/refrigerating machine, the primary of water-water heat exchanger, the 1# evaporation of heat pump/refrigerating machine
A net water backwater it is connected to after device, 2# vaporizer；After one tunnel two net water backwater the series connection absorber of heat pump/refrigerating machine, condenser
It is connected to a road two net water supply water, after the secondary of another road two net water backwater series connection water-water heat exchanger, is connected to another road two net
Water supplies water；
6) net water water supply the series connection generator of heat pump/refrigerating machine, the primary of two grades of water-water heat exchangers, an one-level water-water heat exchanger
Primary, heat pump/refrigerating machine 1# vaporizer after be connected to a net water backwater；Two net water backwater are divided into two: a series connection heat
The secondary string secondary with two grades of water-water heat exchangers of one-level water-water heat exchanger it is connected to after the absorber of pump/refrigeration machine, condenser
Connection midpoint, another connect the 2# vaporizer of heat pump/refrigerating machine, the secondary of one-level water-water heat exchanger, two grades of water-water heat exchangers
Secondary after be connected to two net water supply water；
7) net water water supply the series connection generator of heat pump/refrigerating machine, the primary of two grades of water-water heat exchangers, an one-level water-water heat exchanger
Primary, the 1# vaporizer of heat pump/refrigerating machine, be connected to a net water backwater after 2# vaporizer；Two net water backwater bifurcations: one
One-level water-water heat exchanger it is connected to secondary secondary with two grades of water-water heat exchangers after the series connection absorber of heat pump/refrigerating machine, condenser
The series connection midpoint of level, is connected to two net water after another series connection one-level water-water heat exchanger secondary, two grades of water-water heat exchanger secondary
Supply water；
8) it is connected to a net water after the primary of a net water water supply series connection primary for two grades of water-water heat exchangers, one-level water-water heat exchanger
Backwater；Two net water backwater series connection the secondary of one-level water-water heat exchanger, two grades of water-water heat exchangers secondary after be connected to two net water
Supply water.
Pump type heat the most according to claim 5 big temperature difference heat-exchange method, it is characterised in that: specific practice is: by a net water
The high-temperature water supplied water, as driving heat source, enters in the heat exchanger tube of heat pump/refrigerating machine (1) generator (G) by the first valve (3),
Add the lithium bromide weak solution outside heat pipe to pass through to send out to boiling, generation refrigerant vapour and lithium bromide concentrated solution, a net water high-temperature water
Through being entered water-water heat exchanger (2) by the 3rd valve (5) after raw device (G) cooling, heat two net water, it is achieved lower the temperature further, after cooling
A net water via the 4th valve (6) enter heat pump/refrigerating machine (1) 1# vaporizer (E1) heat exchanger tube, by the water as refrigerant outside pipe
Spray, water as refrigerant is evaporated to refrigerant vapour, absorbs a net water backwater heat, and after heat release cooling, a net water flows through the 5th valve again
And the 9th valve (11) returns a net water return pipe net (7)；Two net water backwater are divided into two, and one via the 17th valve (19) and
Seven valves (9) enter the heat exchanger tube of the 2# vaporizer (E2) of heat pump/refrigerating machine (1), are sprayed by the water as refrigerant outside pipe, water as refrigerant
Being evaporated to refrigerant vapour, this two nets water heat release is lowered the temperature, and transfers heat to another two nets water branch, after this two nets water for cooling
After being flowed out by heat pump/refrigerating machine (1), enter water-water heat exchanger (2), with a net water through the 6th valve (8) and the 13rd valve (15)
Carry out heat exchange intensification；Another two nets water enters the heat exchange of the absorber (A) of heat pump/refrigerating machine (1) through the 20th valve (22)
Pipe, is sprayed by the lithium bromide concentrated solution outside pipe, and concentrated solution absorbs the 1# vaporizer (E1) from the same space and 2# vaporizer
(E2) refrigerant vapour produced, refrigerant vapour contains substantial amounts of heat of evaporation, heat transfer to two net water in heat exchanger tube, make this two
Net water water temperature raises；Two net water after intensification enter in condenser (C) heat exchanger tube, have from same outside condenser (C) heat exchanger tube
The refrigerant vapour that one space generator (G) produces, absorbs the heat in refrigerant vapour, completes the secondary temperature elevation of this two nets water,
This two nets water flows through the 19th valve (21) and the 16th valve (18) mixes with another two nets water afterwards, mixed two nets
Water enters two net water supply channels；Second valve (4) in system, the 8th valve (10), the tenth valve (12), the 11st valve (13), the tenth
Two valves (14), the 14th valve (16), the 15th valve (17), the 18th valve (20) are closed mode.
Pump type heat the most according to claim 5 big temperature difference heat-exchange method, it is characterised in that: specific practice is: by a net water
The high-temperature water supplied water, as driving heat source, is entered by the first valve (3) in the heat exchanger tube of heat pump/refrigerating machine (1) generator (G) and adds
Lithium bromide weak solution outside heat pipe, to boiling, produces refrigerant vapour and lithium bromide concentrated solution, and a net water high-temperature water is by occurring
Through being entered water-water heat exchanger (2) by the 3rd valve (5) after device (G) cooling, heat two net water, it is achieved lower the temperature further, after cooling
One net water flows through the 4th valve (6), the heat exchanger tube of heat pump/refrigerating machine (1) 1# vaporizer (E1), the 5th valve (7), the tenth valve successively
(12), the 12nd valve (14), the 6th valve (8) and the heat exchanger tube of heat pump/refrigerating machine (1) 2# vaporizer (E2), heat pump/refrigerating machine
(1) the net water in 1# vaporizer (E1) and the heat exchanger tube of 2# vaporizer (E2) is sprayed by the water as refrigerant outside pipe, water as refrigerant
Being evaporated to refrigerant vapour, absorb a net water backwater heat, the net water after heat release cooling flows through the 7th valve (9) and the 11st again
Valve (13) returns a net water return pipe net；Two net water backwater are divided into two, and one enters water-water heat exchange via the 14th valve (16)
Device (2), carries out heat exchange intensification with a net water；Another two nets water enters the suction of heat pump/refrigerating machine (1) through the 20th valve (22)
Receiving the heat exchanger tube of device (A), sprayed by the lithium bromide concentrated solution outside pipe, concentrated solution absorbs the 1# vaporizer from the same space
(E1) and the refrigerant vapour that produces of 2# vaporizer (E2), refrigerant vapour contains substantial amounts of heat of evaporation, and heat transfer is in heat exchanger tube
Two net water, make this two nets water water temperature raise；Two net water after intensification enter in condenser (C) heat exchanger tube, condenser (C) heat exchange
There is the refrigerant vapour produced from the same space generator (G) outside pipe, absorb the heat in refrigerant vapour, complete this two net
The secondary temperature elevation of water, this two nets water flows through the 19th valve (21) and the 16th valve (18) mixes with another two nets water afterwards
Closing, mixed two net water enter two net water supply channels；The second valve (4) in system, the 8th valve (10), the 9th valve (11),
13rd valve (15), the 15th valve (17), the 17th valve (19), the 18th valve (20) are closed mode.
Pump type heat the most according to claim 5 big temperature difference heat-exchange method, it is characterised in that: specific practice is: by a net water
High-temperature water, as driving heat source, is entered by the first valve (3) in the heat exchanger tube of heat pump/refrigerating machine (1) generator (G) and adds outside heat pipe
The lithium bromide weak solution of side, to boiling, produces refrigerant vapour and lithium bromide concentrated solution, and a net water high-temperature water is dropped by generator (G)
Wen Houjing is sequentially entered two grades of water-water heat exchangers (2.2) and one-level water-water heat exchanger (2.1) by the 3rd valve (5), heats two
Net water, it is achieved lower the temperature further, the net water after cooling enters heat pump/refrigerating machine (1) 1# vaporizer (E1) via the 4th valve (6)
Heat exchanger tube, sprayed by the water as refrigerant outside pipe, water as refrigerant is evaporated to refrigerant vapour, absorbs a net water backwater heat, again puts
Heat drop Wen Houyi net water flows through the 5th valve (7) and the 9th valve (11) returns a net water return pipe net；Two net water backwater are divided into two,
The heat exchanger tube of one 2# vaporizer (E2) entering heat pump/refrigerating machine (1) via the 17th valve (19) and the 7th valve (9), is managed
The water as refrigerant spray in outside, water as refrigerant is evaporated to refrigerant vapour, and this two nets water heat release is lowered the temperature, and transfers heat to another two net
Water branch, after being flowed out by heat pump/refrigerating machine (1), enters through the 6th valve (8) and the 13rd valve (15) after this two nets water for cooling
One-level water-water heat exchanger (2.1), carries out heat exchange intensification with a net water；Another two nets water enters heat through the 20th valve (22)
The heat exchanger tube of the absorber (A) of pump/refrigeration machine (1), is sprayed by the lithium bromide concentrated solution outside pipe, and concentrated solution absorbs from same
The refrigerant vapour that the 1# vaporizer (E1) in space and 2# vaporizer (E2) produce, refrigerant vapour contains substantial amounts of heat of evaporation, and heat passes
Pass two net water in heat exchanger tube, make this two nets water water temperature raise；Two net water after intensification enter condenser (C) heat exchanger tube
In, there is the refrigerant vapour produced from the same space generator (G) outside condenser (C) heat exchanger tube, absorb in refrigerant vapour
Heat, completes the secondary temperature elevation of this two nets water, this two nets water flow through the 19th valve (21) and the 16th valve (18) afterwards with separately
One two net water mixes, and after mixing, two net water two grades of water-water heat exchangers (2.2) of entrance are heated up, after intensification again
Two net water enter two net water supply channels；Second valve (4) in system, the 8th valve (10), the tenth valve (12), the 11st valve (13),
12nd valve (14), the 14th valve (16), the 15th valve (17), the 18th valve (20) are closed mode.
Big temperature difference heat pump heat-exchange method the most according to claim 5, it is characterised in that: specific practice is: a net water is high
Warm water, as driving heat source, is entered by the first valve (3) in the heat exchanger tube of heat pump/refrigerating machine (1) generator (G) and adds outside heat pipe
Lithium bromide weak solution to boiling, produce refrigerant vapour and lithium bromide concentrated solution, a net water high-temperature water is lowered the temperature by generator (G)
Sequentially enter two grades of water-water heat exchangers (2.2) and one-level water-water heat exchanger (2.1) by by the 3rd valve (5), heat two nets
Water, it is achieved lower the temperature further, the net water after cooling flows through the 4th valve (6), heat pump/refrigerating machine (1) 1# vaporizer (E1) successively
Heat exchanger tube, the 5th valve (7), the tenth valve (12), the 12nd valve (14), the 6th valve (8) and heat pump/refrigerating machine (1) 2# vaporizer
(E2) the net water in heat exchanger tube, the 1# vaporizer (E1) of heat pump/refrigerating machine (1) and the heat exchanger tube of 2# vaporizer (E2) is managed
The water as refrigerant spray in outside, water as refrigerant is evaporated to refrigerant vapour, absorbs a net water backwater heat, again a net water after heat release cooling
Flow through the 7th valve (9) and the 11st valve (13) returns a net water return pipe net；Two net water backwater are divided into two, and one via process
14th valve (16) enters one-level water-water heat exchanger (2.1), carries out heat exchange intensification with a net water；Another two nets water is through
20 valves (22) enter the heat exchanger tube of the absorber (A) of heat pump/refrigerating machine (1), are sprayed by the lithium bromide concentrated solution outside pipe, dense
Solution absorbs the refrigerant vapour produced from 1# vaporizer (E1) and the 2# vaporizer (E2) of the same space, and refrigerant vapour contains greatly
The heat of evaporation of amount, heat transfer, to two net water in heat exchanger tube, makes this two nets water water temperature raise；Two net water after intensification enter cold
In condenser (C) heat exchanger tube, outside condenser (C) heat exchanger tube, there is the refrigerant vapour produced from the same space generator (G), absorb
Heat in refrigerant vapour, completes the secondary temperature elevation of this two nets water, and this two nets water flows through the 19th valve (21) and the 16th
Valve (18) mixes with another two nets water afterwards, and after mixing, two net water two grades of water-water heat exchangers (2.2) of entrance rise again
Temperature, two net water after intensification enter two net water supply channels；Second valve (4), the 8th valve (10), the 9th valve in this embodiment
(11), the 13rd valve (15), the 15th valve (17), the 17th valve (19), the 18th valve (20) are closed mode.
10. according to the pump type heat big temperature difference heat-exchange method described in claim 6,7,8 or 9, it is characterised in that: heat pump/refrigerating machine
(1) during maintaining, only opening the second valve (4), the 8th valve (10) and the 15th valve (17), remaining valve is turned off, by heat pump/
Refrigeration machine (1) is isolated from system.
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Cited By (1)
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| CN107606814A (en) * | 2017-10-18 | 2018-01-19 | 双良节能系统股份有限公司 | The big temperature difference suction-type lithium bromide heat-exchange unit of Very Low Clearance |
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| CN103868128A (en) * | 2014-03-01 | 2014-06-18 | 双良节能系统股份有限公司 | Lithium bromide absorption type heat exchange system with two routes of water simultaneously supplying heat |
| CN205641538U (en) * | 2016-05-13 | 2016-10-12 | 湖南同为节能科技有限公司 | Big difference in temperature heat transfer system of heat pump type |
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| CN101236032A (en) * | 2008-02-28 | 2008-08-06 | 清华大学 | A heat pump type heat exchange unit |
| CN101329117A (en) * | 2008-07-23 | 2008-12-24 | 北京环能瑞通科技发展有限公司 | Integral type absorption type heat exchange machine unit |
| JP2013053776A (en) * | 2011-09-01 | 2013-03-21 | Mitsubishi Electric Corp | Refrigerant circuit device |
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| CN105805946B (en) | 2019-03-08 |
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