CN107421158A - A kind of combined heat apparatus and method of fuel/electricity - Google Patents
A kind of combined heat apparatus and method of fuel/electricity Download PDFInfo
- Publication number
- CN107421158A CN107421158A CN201710709999.0A CN201710709999A CN107421158A CN 107421158 A CN107421158 A CN 107421158A CN 201710709999 A CN201710709999 A CN 201710709999A CN 107421158 A CN107421158 A CN 107421158A
- Authority
- CN
- China
- Prior art keywords
- ammonia
- heat
- heat exchanger
- heating
- fuel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 52
- 230000005611 electricity Effects 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000001816 cooling Methods 0.000 claims abstract description 29
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 237
- 229910021529 ammonia Inorganic materials 0.000 claims description 118
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 77
- 239000006096 absorbing agent Substances 0.000 claims description 40
- 239000007789 gas Substances 0.000 claims description 20
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 20
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 16
- 239000007791 liquid phase Substances 0.000 claims description 12
- 239000012071 phase Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 10
- 239000003345 natural gas Substances 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 9
- 238000005057 refrigeration Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000010257 thawing Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 239000003517 fume Substances 0.000 claims description 4
- 102000010637 Aquaporins Human genes 0.000 claims description 3
- 108010063290 Aquaporins Proteins 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000004781 supercooling Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims 1
- 230000007774 longterm Effects 0.000 abstract description 3
- 239000002817 coal dust Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005373 pervaporation Methods 0.000 description 1
Classifications
-
- 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
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/04—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being ammonia evaporated from aqueous solution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0014—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using absorption or desorption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/32—Heat sources or energy sources involving multiple heat sources in combination or as alternative heat sources
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention relates to a kind of combined heat apparatus and method of fuel/electricity, described device includes heating plant, heat pump heat and cold supplier and corresponding connecting pipe, meets summer cooling and long-term hot water supply demand；The heating plant sets fuel burner to coordinate coil heat exchanger heat supply and electric heater direct heating two ways simultaneously, by economic analysis reasonable selection one of which mode of heating, so as to improve Business Economic Benefit, meets the requirement of energy-saving and emission-reduction.
Description
Technical field
The present invention relates to a kind of combined heat apparatus and method of fuel/electricity, and in particular to one kind is driven using fuel or electricity
Dynamic heat pump while the apparatus and method of heating and cooling.
Background technology
Air source heat pump technology increasingly attracts attention, application is more next because of the advantage of its energy-saving and environmentally friendly aspect
It is more extensive.Its is simple in construction, easy to install, and operating cost is 1/3rd of only simple electricity consumption or natural gas heating
Even a quarter.
Chinese patent CN101059290A discloses ammonia absorption type refrigeration and heat pump dual-purpose system and cooling and heat supply side
Method is related to using ammoniacal liquor as working medium, the refrigeration and heat pump using low grade heat energy and the cooling using the system and heat supply side
Method, the system include generator, rectifier, segregator, solution choke valve, absorber, the first solution heat exchanger, the first solution
Pump, hopper, subcooler, ammonia choke valve, the system also include again haustorium, resolver, balance liquid pipe, the second solution heat exchanger and
Second solution pump, wherein, generator, rectifier and segregator are connected in series, and the ammonia output end of segregator passes through ammonia pipeline
Be connected with the ammonia input of haustorium again, make the device on the premise of heat supply temperature is ensured, in system maximum pressure parameter with
Refrigeration mode is essentially identical, so as in same set of ammonia water absorbing system, according to different seasons, can safely realize system
Cold or heat pump double-purpose functional.The device is under cooling and heat supply both of which, and maximum pressure parameter is essentially identical in system, heat supply
Pattern and cooling mode same time can only alternatives, it is impossible to while realize heating and cooling, can not meet while heating and cooling need
Ask.
The content of the invention
The present invention proposes a kind of combined heat dress for being used to meet summer cooling and fuel/electricity of long-term hot water supply demand
Put, it includes heating plant and heat pump heat and cold supplier；
The heating plant include being used for accommodating the housing of ammonia spirit, the weak aqua ammonia discharge connection positioned at lower housing portion,
The coil heat exchanger and electric heater that are arranged in housing, (being preferably placed at hull outside) that is connected with coil heat exchanger one end
Fuel burner, the fume emission interface being connected with the coil heat exchanger other end；Fuel and air is set to enter on fuel burner
Expect interface；
The heating plant sets fuel burner to coordinate coil heat exchanger heat supply and electric heater direct heating two simultaneously
Kind mode；
The heat pump heat and cold supplier includes generator, ammonia/ammoniacal liquor heat exchanger (also known as rectifier), separator, ammonia
Water/dilute ammonia heat exchanger, solution pump, absorber, cold water heat taking and exchanging device, subcooler, fluid reservoir, evaporator, high-low pressure pressure-reducing valve,
Freeze choke valve, and wherein ammonia/ammoniacal liquor heat exchanger includes ammonia side and ammoniacal liquor side (passage), subcooler include liquefied ammonia wing passage with
Ammonia wing passage, ammoniacal liquor/dilute ammonia heat exchanger include ammoniacal liquor wing passage and dilute ammonia wing passage, and cold water heat taking and exchanging device includes aquaporin
With ammonia wing passage, absorber include cooling water inlet, hot water outlet and be arranged in absorber and with cooling water inlet and hot water
Export the heat exchanger tube (coil pipe) being connected；
The generator (ammonia generator) is arranged at the top of heating plant housing, is preferably made with heating plant housing
One, i.e., generator bottom is connected with heating plant case top, and forms a space communicated,
Described heat pump heat and cold supplier, its generator top exit connection ammonia/ammoniacal liquor heat exchanger ammonia side are followed by
Separator, separator bottom take back to the top liquid phase entrance of generator, the outlet of separator top gas phase and pass sequentially through cold water and take
The ammonia wing passage of heat exchanger, the liquefied ammonia wing passage of subcooler, fluid reservoir, refrigeration choke valve, evaporator, the ammonia of subcooler
Wing passage is sequentially connected to absorber, absorber outlet connection solution pump, and solution pump discharge is sequentially connected ammonia/ammoniacal liquor heat exchange again
Device ammoniacal liquor side, ammoniacal liquor/dilute ammonia heat exchanger ammoniacal liquor wing passage, further go back to liquid phase entrance at the top of generator, and composition supplies simultaneously
First closed circulation of heat and cooling, heat supply realize that cooling is realized by evaporator by cold water heat taking and exchanging device；
The weak aqua ammonia outlet of generator bottom connects dilute ammonia side of ammoniacal liquor/dilute ammonia heat exchanger via heating plant housing bottom
Passage, high-low pressure pressure-reducing valve, it is connected to the liquid phase entrance (weak aqua ammonia absorbs ammonia in absorber and forms solution) of absorber, composition
Second closed circulation of heat supply, cold water interface of the cold water through being set on absorber take heat into absorber.
When coordinating coil heat exchanger heat-supplying mode using fuel burner, its fuel and air incoming fuel burner,
Fuel burner connects one end of coil heat exchanger, and flame and flue gas enter inside coil heat exchanger into entrance heating plant
Ammonia spirit heat supply, the other end connection flue gas exhausting pipe line of coil heat exchanger；When using electrical heating, burner and day are cut off
Right gas charging, opens electric heater and is electrically heated.
Further, the separator top gas phase outlet conduit separates a branch road, connects defrosting valve, connects after the valve that defrosts
It is connected to the entrance of evaporator.
Further, burner is located at hull outside.
Further, generator is formed integrally with heating plant.
The fuel burner that the heating plant is set can be neat gas burner, coal burner, oil burner
And other burners of equal value；The heating plant can also use the heating medium heat supplies of equal value such as flue gas, steam, heating plant
Heating medium entrance is set on housing, is directly connected to the coil heat exchanger of enclosure interior.
The heat-supplying mode of heating plant by economic analysis reasonable selection, using natural gas as fuel exemplified by, it is assumed that it is natural
Gas calorific value is 36MJ/Nm3, electricity price is n members/kWh, and Gas Prices are m members/Nm3, then：
Work as m>During 10n, preferentially using electrical heating；
Work as m<During 10n, preferentially using gas heating.
Included using the combined heat device of above-mentioned fuel/electricity while the method for heating and cooling：
When coordinating coil heat exchanger heat-supplying mode using fuel burner, entered with fuel such as natural gas, coal dust, fuel oils
Burnt in fuel device, when using Electric heating, then close the supply of the fuel such as natural gas, open electric heater direct heating,
Ammonia spirit of the heating in the heating plant housing, by thermogenetic ammonia (about 1.5~3.5MPa, further 2.0~
3.0MPa, 100~170 DEG C, further 120~160 DEG C) condensation, liquid separation, liquid phase are returned from separator from after generator Base top contact
Return generator, gas phase then pass sequentially through cold water heat taking and exchanging device (be cooled to 55~80 DEG C in cold water heat taking and exchanging device, further 60
~75 DEG C) and subcooler (being cooled to -5~35 DEG C in subcooler, further -2~15 DEG C of liquefaction) cools, liquefied, supercooling turns into
Liquefied ammonia, liquefied ammonia are stored in fluid reservoir, and wherein gas phase during cold water heat taking and exchanging device by realizing heat supply；Liquefied ammonia is through the choke valve section that freezes
Stream cooling, by adjusting operating condition, this temperature is minimum to be down to -5~-20 DEG C, preferably -10~-15 DEG C, preferably from about -15 DEG C,
By evaporator to environment cooling, liquefied ammonia evaporate and enter subcooler further heat up (to about 0~35 DEG C, further 5-20
DEG C), mixed into absorber with weak aqua ammonia and turn into solution again；
The weak aqua ammonia (about 170~230 DEG C) for evaporating ammonia goes out after heating plant through ammonia/dilute ammonia heat exchanger recoverer
Divide heat, be depressured through high-low pressure pressure-reducing valve (to 0.02~2.5MPa, further to 0.1~1.0MPa), subsequently into absorber
Mixed with ammonia, heat supply (such as cold water passes through the heat-exchanger rig coil pipe that is arranged in absorber) is realized by absorber；Generation
Ammonia spirit after solution pump is pressurized successively through ammonia/ammoniacal liquor heat exchanger (be warming up to about 60 through ammonia/ammoniacal liquor heat exchanger~
130 DEG C, further 80~110 DEG C) and ammonia/dilute ammonia heat exchanger (be warming up to 100~200 DEG C through ammonia/dilute ammonia heat exchanger, enter
One 130~170 DEG C of step) heating, then it is recycled back to generator.
Cold water can obtain such as 50~65 respectively after the cold water heat exchanger tube (coil pipe) of cold water heat taking and exchanging device and absorber
DEG C, preferably from about 60 DEG C of hot water.
Winter temperature is relatively low and when humidity is higher (such as environment temperature is less than 5 DEG C, when humidity is higher than 70%), evaporator surface
It is easy to frosting, then opens defrosting valve and evaporator is defrosted.
The heating plant of the present invention, compared with above-mentioned prior art, make use of the advantage of heat pump, while and can is to greatest extent
Reduction energy consumption.The present invention can realize following Three models：
Summer independent cooling；
Summer cooling and domestic hot-water；
Annual (being applied to the situation that winter environment temperature is higher than -5 DEG C) independent heat supply.
Brief description of the drawings
Fig. 1 is the installation drawing of device of the present invention.
Wherein：1st, generator；2nd, ammonia/ammoniacal liquor heat exchanger；3rd, separator；4th, cold water heat taking and exchanging device；5th, subcooler；6、
Fluid reservoir；7th, freeze choke valve；8th, evaporator；9th, absorber；10th, solution pump；11st, heating plant；12nd, ammoniacal liquor/dilute ammonia heat exchange
Device；13rd, high-low pressure pressure-reducing valve；14th, coil pipe；15th, fuel burner；16th, coil heat exchanger；17th, electric heater；18th, defrost valve；
19th, housing；20th, fume emission interface；21st, weak aqua ammonia discharge connection.
Embodiment
The present invention relates to a kind of combined heat device of fuel/electricity, it includes heating plant and heat pump heat and cold supplier,
Meet summer cooling and long-term hot water supply demand；
The heating plant includes being used to accommodate the housing 19 of ammonia spirit, the weak aqua ammonia discharge connection positioned at lower housing portion
21st, the coil heat exchanger 16 and electric heater 17 that are arranged in housing, with what coil heat exchanger one end was connected (it is preferably placed at housing
It is outside) fuel burner 15, the fume emission interface 20 that is connected with the coil heat exchanger other end；Combustion is set on fuel burner
Material and air feed interface；
The heating plant sets fuel burner to coordinate coil heat exchanger heat supply and electric heater direct heating two simultaneously
Kind mode；
The heat pump heat and cold supplier includes generator 1, ammonia/ammoniacal liquor heat exchanger 2, separator 3, ammoniacal liquor/dilute ammonia and changed
Hot device 12, solution pump 10, absorber 9, cold water heat taking and exchanging device 4, subcooler 5, fluid reservoir 6, evaporator 8, high-low pressure pressure-reducing valve
13rd, freeze choke valve 7, and wherein ammonia/ammoniacal liquor heat exchanger 2 includes ammonia side and ammoniacal liquor side (passage), and subcooler 5 includes liquefied ammonia side
Passage and ammonia wing passage, ammoniacal liquor/dilute ammonia heat exchanger 12 include ammoniacal liquor wing passage and dilute ammonia wing passage, cold water heat taking and exchanging device 4
Including aquaporin and ammonia wing passage, absorber 9 include cooling water inlet, hot water outlet and be arranged in absorber 9 and with it is cold
The coil pipe 14 that water inlet is connected with hot water outlet；
The generator (ammonia generator) 1 is arranged at the top of heating plant housing 19, preferably with heating plant housing
Being formed integrally, i.e., the bottom of generator 1 is connected with the top of heating plant housing 18, and forms a space communicated,
Described heat pump heat and cold supplier, after its top exit of generator 1 connects the ammonia side of ammonia/ammoniacal liquor heat exchanger 2
Separator 3 is connect, the bottom of separator 3 takes back to the top liquid phase entrance of generator 1, the outlet of the top gas phase of separator 3 and passed sequentially through
The ammonia wing passage of cold water heat taking and exchanging device 4, the liquefied ammonia wing passage of subcooler 5, fluid reservoir 6, refrigeration choke valve 7, evaporator 8,
The ammonia wing passage of subcooler 5 is sequentially connected to absorber 9, and the outlet of absorber 9 connection solution pump 10, solution pump 10 exports to be connected again
The ammoniacal liquor side of ammonia/ammoniacal liquor heat exchanger 2, the ammoniacal liquor wing passage of ammoniacal liquor/dilute ammonia heat exchanger 12 are connect, further goes back to the top of generator 1
First closed circulation of liquid phase entrance, composition heat supply simultaneously and cooling, heat supply realize that cooling leads to by cold water heat taking and exchanging device 4
Pervaporation device 8 is realized；
The weak aqua ammonia outlet 21 of the bottom of generator 1 connects ammoniacal liquor/dilute ammonia heat exchanger 12 via the bottom of heating plant housing 19
Dilute ammonia wing passage, high-low pressure pressure-reducing valve 13, be connected to absorber 9 liquid phase entrance (weak aqua ammonia absorber absorb ammonia shape
Into solution), second closed circulation of heat supply is formed, cold water interface of the cold water through being set on absorber 9 takes into absorber 9
Heat.
When coordinating coil heat exchanger heat-supplying mode using fuel burner, its fuel and air incoming fuel burner,
Fuel burner connects one end of coil heat exchanger, and flame and flue gas enter inside coil heat exchanger into entrance heating plant
Ammonia spirit heat supply, the other end connection flue gas exhausting pipe line of coil heat exchanger；When using electrical heating, burner and day are cut off
Right gas charging, opens electric heater and is electrically heated.
Further, the separator top gas phase outlet conduit separates a branch road, connects defrosting valve, connects after the valve that defrosts
It is connected to the entrance of evaporator.
Burner is preferably placed at outside housing 19.
Generator 1 is preferably formed integrally with heating plant.
The fuel burner that the heating plant is set can be neat gas burner, coal burner, oil burner
And other burners of equal value；The heating plant can also use the heating medium heat supplies of equal value such as flue gas, steam, heating plant
Heating medium entrance is set on housing, is directly connected to the coil heat exchanger of enclosure interior.
The heat-supplying mode of heating plant by economic analysis reasonable selection, using natural gas as fuel exemplified by, it is assumed that it is natural
Gas calorific value is 36MJ/Nm3, electricity price is n members/kWh, and Gas Prices are m members/Nm3, then：
Work as m>During 10n, preferentially using electrical heating；
Work as m<During 10n, preferentially using gas heating.
Included using the combined heat device of the fuel/electricity while the method for heating and cooling：
When coordinating coil heat exchanger heat-supplying mode using fuel burner, entered with fuel such as natural gas, coal dust, fuel oils
Burnt in fuel device, when using Electric heating, then close the supply of the fuel such as natural gas, open electric heater direct heating,
Ammonia spirit of the heating in heating plant housing, by thermogenetic ammonia (about 1.5~3.5MPa, 100~170 DEG C) certainly
Condensation, liquid separation after generator Base top contact, liquid phase return to generator from separator, and gas phase then passes sequentially through cold water heat taking and exchanging device
(being cooled to 55~80 DEG C in cold water heat taking and exchanging device) and subcooler (being cooled to -5~35 DEG C of liquefaction in subcooler) cooling, liquid
Change, supercooling turn into liquefied ammonia, and liquefied ammonia is stored in fluid reservoir, and wherein gas phase during cold water heat taking and exchanging device by realizing heat supply；Liquefied ammonia passes through
Choke valve throttling of freezing cools, and by adjusting operating condition, this temperature is minimum to be down to -5~-20 DEG C, preferably -10~-15 DEG C,
Preferably from about -15 DEG C, by evaporator to environment cooling, liquefied ammonia, which evaporates and enters subcooler, to be further heated up (to about 0~35
DEG C), mixed into absorber with weak aqua ammonia and turn into solution again；
The weak aqua ammonia (about 170~230 DEG C) for evaporating ammonia goes out after heating plant through ammonia/dilute ammonia heat exchanger recoverer
Divide heat, be depressured (to 0.02~2.5MPa), mixed subsequently into absorber with ammonia, by being arranged at through high-low pressure pressure-reducing valve
Coil pipe in absorber realizes heat supply；The ammonia spirit of generation is after solution pump is pressurized successively through ammonia/ammoniacal liquor heat exchanger (through ammonia
Gas/ammoniacal liquor heat exchanger is warming up to about 60~130 DEG C) and ammonia/dilute ammonia heat exchanger (be warming up to 100 through ammonia/dilute ammonia heat exchanger
~200 DEG C) heating, then it is recycled back to generator.
Cold water can obtain about 60 DEG C of hot water respectively after the chilled water coil 14 of cold water heat taking and exchanging device 4 and absorber 9.
Winter temperature is relatively low and when humidity is higher (such as environment temperature is less than 5 DEG C, when humidity is higher than 70%), evaporator surface
It is easy to frosting, then opens defrosting valve and evaporator is defrosted.
The present invention can realize following Three models：
Summer independent cooling；
Summer cooling and domestic hot-water；
Annual (being applied to the situation that winter environment temperature is higher than -5 DEG C) independent heat supply.
Claims (11)
1. a kind of combined heat device of fuel/electricity, it includes heating plant and heat pump heat and cold supplier；
The heating plant includes being used for the housing, the weak aqua ammonia discharge connection positioned at lower housing portion, setting for accommodating ammonia spirit
Coil heat exchanger and electric heater in housing, the fuel burner and coil heat exchanger being connected with coil heat exchanger one end
The fume emission interface of other end connection；Fuel and air feed interface are set on fuel burner；
The heating plant sets fuel burner to coordinate two kinds of sides of coil heat exchanger heat supply and electric heater direct heating simultaneously
Formula；
The heat pump heat and cold supplier includes generator, ammonia/ammoniacal liquor heat exchanger, separator, ammoniacal liquor/dilute ammonia heat exchanger, molten
Liquid pump, absorber, cold water heat taking and exchanging device, subcooler, fluid reservoir, evaporator, high-low pressure pressure-reducing valve, refrigeration choke valve, wherein
Ammonia/ammoniacal liquor heat exchanger includes ammonia side and ammoniacal liquor wing passage, and subcooler includes liquefied ammonia wing passage and ammonia wing passage, and ammoniacal liquor/
Dilute ammonia heat exchanger includes ammoniacal liquor wing passage and dilute ammonia wing passage, and cold water heat taking and exchanging device includes aquaporin and ammonia wing passage, inhales
Receiving device includes cooling water inlet, hot water outlet and is arranged on the heat exchange being connected in absorber and with cooling water inlet and hot water outlet
Pipe；
The generator is arranged at the top of heating plant housing, is preferably formed integrally with heating plant housing, i.e. generator bottom
Portion is connected with heating plant case top, and forms a space communicated,
Described heat pump heat and cold supplier, its generator top exit connection ammonia/ammoniacal liquor heat exchanger ammonia side are followed by separating
Device, separator bottom take back to the top liquid phase entrance of generator, the outlet of separator top gas phase and pass sequentially through cold water and take heat to change
The ammonia wing passage of hot device, the liquefied ammonia wing passage of subcooler, fluid reservoir, refrigeration choke valve, evaporator, the ammonia side of subcooler lead to
Road is sequentially connected to absorber, absorber outlet connection solution pump, and solution pump discharge reconnects ammonia/ammoniacal liquor heat exchanger ammoniacal liquor
Side, ammoniacal liquor/dilute ammonia heat exchanger ammoniacal liquor wing passage, further go back to liquid phase entrance at the top of generator, composition heat supply and confession simultaneously
The first cold closed circulation, heat supply realize that cooling is realized by evaporator by cold water heat taking and exchanging device；
Dilute ammonia side that the weak aqua ammonia outlet of generator bottom connects ammoniacal liquor/dilute ammonia heat exchanger via heating plant housing bottom leads to
Road, high-low pressure pressure-reducing valve, the liquid phase entrance of absorber is connected to, forms second closed circulation of heat supply, cold water is through absorber
The cold water interface of upper setting takes heat into absorber.
2. device according to claim 1, it is characterised in that the separator top gas phase outlet conduit separates a branch
Road, defrosting valve is connected, the entrance of evaporator is connected to after the valve that defrosts.
3. device according to claim 1, it is characterised in that burner is located at hull outside.
4. device according to claim 1, it is characterised in that generator is formed integrally with heating plant.
5. according to the device any one of claim 1-4, it is characterised in that the fuel combustion that the heating plant is set
Device is neat gas burner, coal burner or oil burner.
6. according to the device any one of claim 1-4, it is characterised in that；The heating plant is using flue gas, steam
Or heating medium heat supply of equal value, heating medium entrance is set on heating plant housing, is directly connected to the coil heat exchange of enclosure interior
Device.
7. a kind of usage right requires the combined heat device of fuel/electricity any one of 1-6 while the side of heating and cooling
Method, methods described include：
When coordinating coil heat exchanger heat-supplying mode using fuel burner, burnt in fuel incoming fuel device；Or work as and use
During Electric heating, electric heater direct heating, ammonia spirit of the heating in heating plant housing, by thermogenetic are opened
1.5~3.5MPa, 100~170 DEG C of ammonias condense from after generator Base top contact, liquid separation, and liquid phase returns to generator from separator,
Gas phase is then cooled to 55~80 DEG C simultaneously to cold water heat supply by cold water heat taking and exchanging device, is further cooled to -5 by subcooler
~35 DEG C of liquefaction, supercooling turn into liquefied ammonia, and liquefied ammonia is stored in fluid reservoir；Liquefied ammonia passes through evaporator through choke valve throttling cooling of freezing
To environment cooling, liquefied ammonia evaporates and enters subcooler and further heat up to be mixed again to 0~35 DEG C, into absorber with weak aqua ammonia
As solution；
170~230 DEG C of weak aqua ammonias for evaporating ammonia go out after heating plant through ammonia/dilute ammonia heat exchanger recovery section heat, warp
High-low pressure pressure-reducing valve is depressurized to 0.02~2.5MPa, is mixed subsequently into absorber with ammonia, while cold water enters in absorber
Take heat；The ammonia spirit of generation is after solution pump is pressurized successively through ammonia/ammoniacal liquor heat exchanger to 60~130 DEG C and through ammonia/dilute
Ammonia heat exchanger is warming up to 100~200 DEG C, is then recycled back to generator.
8. according to the method for claim 7, wherein, cold water is after the cold water heat exchanger tube of cold water heat taking and exchanging device and absorber
Such as 50~65 DEG C are can obtain respectively, preferably from about 60 DEG C of hot water.
9. according to the method for claim 7, wherein, when environment temperature is less than 5 DEG C, and humidity is higher than 70%, open defrosting
Valve defrosts to evaporator.
10. the method according to claim 11, wherein, when coordinating coil heat exchanger heat-supplying mode using fuel burner,
Its fuel and air incoming fuel burner, fuel burner connect one end of coil heat exchanger, and flame and flue gas enter coil pipe
To the ammonia spirit heat supply entered in heating plant, the other end connection flue gas exhausting pipe line of coil heat exchanger inside heat exchanger；
Or when using electrical heating, burner and natural gas feed are cut off, open electric heater and be electrically heated.
11. according to the method for claim 7, wherein, by adjusting operating condition, liquefied ammonia is through choke valve throttling cooling of freezing
Temperature minimum be down to -5~-20 DEG C, preferably -10~-15 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709999.0A CN107421158A (en) | 2017-08-18 | 2017-08-18 | A kind of combined heat apparatus and method of fuel/electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709999.0A CN107421158A (en) | 2017-08-18 | 2017-08-18 | A kind of combined heat apparatus and method of fuel/electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107421158A true CN107421158A (en) | 2017-12-01 |
Family
ID=60434012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710709999.0A Pending CN107421158A (en) | 2017-08-18 | 2017-08-18 | A kind of combined heat apparatus and method of fuel/electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107421158A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682841A (en) * | 2020-12-23 | 2021-04-20 | 沈阳工程学院 | Indoor temperature control method and control device for electric and thermal comprehensive heating |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB513129A (en) * | 1937-04-01 | 1939-10-04 | Electrolux Ltd | Improvements in or relating to absorption refrigerating systems |
| JPH11118283A (en) * | 1997-10-13 | 1999-04-30 | Daikin Ind Ltd | Controller for ammonia absorption freezer |
| CN1389692A (en) * | 2001-06-01 | 2003-01-08 | 热能科技开发股份有限公司 | Evaporating region structure for absorption-diffusion refrigerating circulation |
| JP2004156827A (en) * | 2002-11-06 | 2004-06-03 | Kawasaki Thermal Engineering Co Ltd | Hybrid heat and electricity supplying system |
| CN101059290A (en) * | 2007-05-25 | 2007-10-24 | 东南大学 | Ammonia absorption type refrigeration and hot pump dual-purpose system and cool and heat supply method |
| CN102679623A (en) * | 2012-05-31 | 2012-09-19 | 东南大学 | Ammonia-water-absorption water refrigerating and heating system device |
| CN103836699A (en) * | 2014-02-28 | 2014-06-04 | 烟台荏原空调设备有限公司 | Absorptive heat exchanger unit |
| CN105202797A (en) * | 2015-10-22 | 2015-12-30 | 武汉宾腾能源科技有限公司 | Minitype vehicle-mounted absorption type refrigerating device driven by waste heat |
| CN205747586U (en) * | 2016-05-06 | 2016-11-30 | 商金华 | A kind of alcohol-based fuel is the heat pump heating device of fuel |
| CN207600012U (en) * | 2017-08-18 | 2018-07-10 | 新地能源工程技术有限公司 | A kind of combined heat device of fuel/electricity |
-
2017
- 2017-08-18 CN CN201710709999.0A patent/CN107421158A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB513129A (en) * | 1937-04-01 | 1939-10-04 | Electrolux Ltd | Improvements in or relating to absorption refrigerating systems |
| JPH11118283A (en) * | 1997-10-13 | 1999-04-30 | Daikin Ind Ltd | Controller for ammonia absorption freezer |
| CN1389692A (en) * | 2001-06-01 | 2003-01-08 | 热能科技开发股份有限公司 | Evaporating region structure for absorption-diffusion refrigerating circulation |
| JP2004156827A (en) * | 2002-11-06 | 2004-06-03 | Kawasaki Thermal Engineering Co Ltd | Hybrid heat and electricity supplying system |
| CN101059290A (en) * | 2007-05-25 | 2007-10-24 | 东南大学 | Ammonia absorption type refrigeration and hot pump dual-purpose system and cool and heat supply method |
| CN102679623A (en) * | 2012-05-31 | 2012-09-19 | 东南大学 | Ammonia-water-absorption water refrigerating and heating system device |
| CN103836699A (en) * | 2014-02-28 | 2014-06-04 | 烟台荏原空调设备有限公司 | Absorptive heat exchanger unit |
| CN105202797A (en) * | 2015-10-22 | 2015-12-30 | 武汉宾腾能源科技有限公司 | Minitype vehicle-mounted absorption type refrigerating device driven by waste heat |
| CN205747586U (en) * | 2016-05-06 | 2016-11-30 | 商金华 | A kind of alcohol-based fuel is the heat pump heating device of fuel |
| CN207600012U (en) * | 2017-08-18 | 2018-07-10 | 新地能源工程技术有限公司 | A kind of combined heat device of fuel/electricity |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682841A (en) * | 2020-12-23 | 2021-04-20 | 沈阳工程学院 | Indoor temperature control method and control device for electric and thermal comprehensive heating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019085453A1 (en) | Frostless multivariable coupled type heat pump hot blast stove system | |
| CN108679868B (en) | Self-operated multifunctional heat pump system and control method thereof | |
| CN201359375Y (en) | Hot pump water heater | |
| CN201569214U (en) | Multifunctional air source heat pump water heater | |
| CN207600012U (en) | A kind of combined heat device of fuel/electricity | |
| CN202521848U (en) | Air source heat pump water heater with supercooling copper pipe | |
| CN102620489B (en) | Air conditioner heat pump unit with antifreeze solution regenerated heat recovery device | |
| CN107178927A (en) | A kind of BOG of LNG Power Vessels utilizes system and method for work | |
| CN100376851C (en) | Multifunctional solar-assisted heat pump system | |
| CN107421158A (en) | A kind of combined heat apparatus and method of fuel/electricity | |
| CN201387143Y (en) | High-temperature energy-saving water heater device for low-temperature air source heat pump with storing and dividing device | |
| CN205137982U (en) | Two return circuit heat accumulation defrosting type air conditioners | |
| CN104132456A (en) | Direct heat type multi-phase transformation point composite heat storage heat-pump water heater system | |
| CN207081246U (en) | A kind of heat and cold supplier driven using natural gas | |
| CN207065920U (en) | A kind of BOG of LNG Power Vessels utilizes system | |
| CN113137591B (en) | Waste heat recovery multi-element utilization device for large kitchen | |
| CN205027016U (en) | Two return circuit heat accumulation defrosting type heat pumps | |
| CN103557633A (en) | Air-source low-temperature tri-generation heat pump hot water unit and implementation method thereof | |
| CN204006448U (en) | The full Air Conditioning System with Heat of phase-transition heat-storage | |
| CN207599838U (en) | A kind of fuel heating plant suitable for cold district | |
| CN102620474A (en) | Air conditioner cold-hot water unit with antifreeze solution regenerated heat recovery device | |
| CN108286763B (en) | Air conditioning system with energy gradient utilization function | |
| CN204084930U (en) | A kind of self-folding type energy tower heat pump system | |
| CN107477651A (en) | A kind of fuel heating plant and method suitable for cold district | |
| CN201355122Y (en) | Water heating unit of air-conditioning cold-warm heat pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Haiyan Inventor after: He Zhenyong Inventor after: Kou Weiwei Inventor after: Zheng Zhongying Inventor after: Li Zhanyue Inventor after: Wang Xiaoning Inventor after: Yang Jian Inventor after: Bian Zezhou Inventor after: Wang Xikun Inventor before: Zheng Haiyan Inventor before: He Zhenyong Inventor before: Kou Weiwei Inventor before: Zheng Zhongying Inventor before: Li Zhanyue Inventor before: Wang Xiaoning Inventor before: Yang Jian Inventor before: Bian Zezhou Inventor before: Wang Xikun |
|
| CB03 | Change of inventor or designer information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
|
| RJ01 | Rejection of invention patent application after publication |