CN107436053A - A kind of heat and cold supplier and method using natural gas driving - Google Patents
A kind of heat and cold supplier and method using natural gas driving Download PDFInfo
- Publication number
- CN107436053A CN107436053A CN201710710010.8A CN201710710010A CN107436053A CN 107436053 A CN107436053 A CN 107436053A CN 201710710010 A CN201710710010 A CN 201710710010A CN 107436053 A CN107436053 A CN 107436053A
- Authority
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- China
- Prior art keywords
- ammonia
- heat
- absorber
- ammoniacal liquor
- cold water
- 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.)
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000003345 natural gas Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 236
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 118
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 239000006096 absorbing agent Substances 0.000 claims abstract description 43
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 239000000446 fuel Substances 0.000 claims abstract description 17
- 238000007710 freezing Methods 0.000 claims abstract description 5
- 230000008014 freezing Effects 0.000 claims abstract description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 78
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 13
- 239000012071 phase Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 239000007791 liquid phase Substances 0.000 claims description 11
- 238000005057 refrigeration Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000010257 thawing Methods 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 5
- 102000010637 Aquaporins Human genes 0.000 claims description 3
- 108010063290 Aquaporins Proteins 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 239000003517 fume Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000004781 supercooling Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/006—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the sorption type system
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention relates to a kind of heat and cold supplier and method using natural gas driving, the inventive system comprises the heating plant using natural gas as fuel, heat pump heat and cold supplier and corresponding connecting pipe, by cold water heat taking and exchanging device, absorber to cold water heat supply, taken by evaporator from environment cold, realize summer cooling and long-term hot water supply；Because what is utilized is ammonia circulation working medium, its freezing point is very low, the problem of being not required to consider freezed in winter；Energy-saving effect is obvious, using the heating plant of the present invention, relatively directly uses boiler heat supplying, can save the fuel quantity of half；The heat energy of fuel combustion flue gas is reclaimed, and is further reduced natural gas dosage, is met power conservation requirement.
Description
Technical field
The present invention relates to a kind of heat and cold supplier and method using natural gas driving, more particularly to one kind to use combustion gas
The apparatus and method of heat pump while 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
It is cold and hot as the heating plant of fuel and heat pump the present invention relates to a kind of heat and cold supplier, including using natural gas
For device；
The heating plant using natural gas as fuel includes being used to accommodate the housing of ammonia spirit, positioned at lower housing portion
Weak aqua ammonia discharge connection, be arranged in housing coil heat exchanger, with what coil heat exchanger one end was connected (be preferably placed at housing
It is outside) burner, the fume emission interface that is connected with the coil heat exchanger other end；One natural gas air inlet connecting is set on burner
Mouthful；
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 ammonia/ammoniacal liquor heat exchanger includes ammonia side and ammoniacal liquor side (passage), and subcooler includes liquefied ammonia wing passage and ammonia
Wing passage, ammoniacal liquor/dilute ammonia heat exchanger include ammoniacal liquor wing passage and dilute ammonia wing passage, and the first 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 the heating plant housing using natural gas as fuel, preferably
It is formed integrally with heating plant, generator bottom forms a space communicated with being connected at the top of heating plant,
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 and be connected to absorber, absorber outlet connection solution pump, solution pump discharge reconnect ammonia/ammoniacal liquor heat exchanger ammoniacal liquor
Side, ammoniacal liquor/dilute ammonia heat exchanger ammoniacal liquor wing passage, further return to liquid phase entrance at the top of generator, composition while heat supply and cooling
The first closed circulation, heat supply realizes 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.
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.
Heat and cold supplier of the present invention using the driving of such as natural gas, heating plant therein, its natural gas
Admission line is directly connected to burner, and burner connects the coil heat exchanger inside heating plant by the connection component of correlation,
Flame and flue gas enter inside coil heat exchanger to the ammonia spirit heat supply entered in heating plant, coil heat exchanger connection flue gas
Discharge tube.
The invention further relates to the method using above-mentioned heat and cold supplier while heating and cooling, this method includes following
Step：
Natural gas ammonia spirit of the heating in heating plant housing, is heated as being burnt in fuel incoming fuel device
Caused ammonia (about 1.5~3.5MPa, further 2.0~3.0MPa, 100~170 DEG C, further 120~160 DEG C) is spontaneous
Condensation, liquid separation after raw device 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, further 60~75 DEG C in cold water heat taking and exchanging device) and subcooler (are cooled to -5~35 in subcooler
DEG C, further -2~15 DEG C liquefaction) cooling, liquefaction, supercooling turn into liquefied ammonia, liquefied ammonia is stored in fluid reservoir, and wherein gas phase passes through cold
Heat supply is realized during water heat taking and exchanging device；Liquefied ammonia is through choke valve throttling cooling of freezing, and by adjusting operating condition, this temperature is minimum can
- 5~-20 DEG C, preferably from about -10 DEG C are down to, by evaporator to environment cooling, liquefied ammonia, which evaporates and enters subcooler, to be further heated 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
Point heat, be depressured through high-low pressure pressure-reducing valve (to 0.02~2.5MPa, further to 0.1-1.0MPa), subsequently into absorber with
Ammonia is mixed, and 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 heating (100~200 DEG C are warming up to through ammonia/dilute ammonia heat exchanger,
Further 130-170 DEG C), 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, further 55~60 DEG C, preferably from about 60 DEG C of hot water.
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.
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 meets user's Various Seasonal to hot and cold different demands, apparatus of the present invention realize simultaneously summer cooling and
Long-term hot water supply, because what is utilized is ammonia-water cycle fluid, its freezing point is very low, the problem of being not required to consider freezed in winter；Energy-conservation effect
Fruit is obvious, using the heating plant of the present invention, relatively directly uses boiler heat supplying, can save the gas quantity of half；Combustion of natural gas
The heat energy of flue gas is reclaimed, and is further reduced natural gas dosage, is met power conservation requirement.Compared with above-mentioned prior art, energy
Significantly reduce energy consumption.
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, burner；16th, coil heat exchanger；17th, defrost valve；18th, housing；19th, flue gas
Discharge interface；20th, weak aqua ammonia discharge connection.
Embodiment
It is cold and hot as the heating plant of fuel, heat pump the present invention relates to a kind of heat and cold supplier, including using natural gas
For device, the device realizes summer cooling and long-term hot water supply simultaneously；
The heating plant using natural gas as fuel includes being used to accommodate the housing 18 of ammonia spirit, under housing
The weak aqua ammonia discharge connection 20 in portion, the coil heat exchanger 16 being arranged in housing, (the preferably position being connected with coil heat exchanger one end
In hull outside) burner 15, the fume emission interface 19 that is connected with the coil heat exchanger other end；Set one day on burner
Right gas intake interface；
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 ammonia/ammoniacal liquor heat exchanger 2 includes ammonia side and ammoniacal liquor side (passage), and subcooler 5 includes liquefied ammonia wing passage
With ammonia wing passage, ammoniacal liquor/dilute ammonia heat exchanger 12, which includes ammoniacal liquor wing passage and dilute ammonia wing passage, cold water heat taking and exchanging device 4, to be included
Aquaporin and ammonia wing passage, absorber 9 include cooling water inlet, hot water outlet and are arranged in absorber 9 and enter with cold water
The coil pipe 14 that mouth is connected with hot water outlet；
The generator (ammonia generator) 1 is arranged at the top of heating plant housing 18, is preferably made with heating plant
One, the bottom of generator 1 is connected with the top of heating plant housing 18, and forms a space communicated,
In described heat pump heat and cold supplier, its top exit of generator 1 connection ammonia/ammoniacal liquor heat exchanger 2 ammonia side
Separator 3 is followed by, the bottom of separator 3 is taken back to the top liquid phase entrance of generator 1, the outlet of the top gas phase of separator 3 to be led to successively
The ammonia wing passage of subcooled water heat taking and exchanging device 4, the liquefied ammonia wing passage of subcooler 5, fluid reservoir 6, refrigeration choke valve 7, evaporator
8th, the ammonia wing passage of subcooler 5 and be connected to absorber 9, absorber 9 outlet 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 returns to the top liquid of generator 1
First closed circulation of phase entrance, composition heat supply simultaneously and cooling, heat supply realize that cooling passes through by cold water heat taking and exchanging device 4
Evaporator 8 is realized；
The weak aqua ammonia outlet 20 of the bottom of generator 1 connects ammoniacal liquor/dilute ammonia heat exchanger 12 via the bottom of heating plant housing 18
Dilute ammonia wing passage, high-low pressure pressure-reducing valve 13, be connected to the liquid phase entrance (absorber absorb ammonia formed solution) of absorber 9,
The second closed circulation of heat supply is formed, cold water interface of the cold water through being set on absorber 9 takes heat into absorber 9.
Further, the top gas phase outlet conduit of separator 3 separates a branch road, and connection defrosting valve 17, defrost valve
The entrance of evaporator 8 is connected to after 17.
Burner is preferably placed at outside housing 18.
Generator 1 is formed integrally with heating plant.
Method using above-mentioned heat and cold supplier while heating and cooling comprises the following steps：
Natural gas ammonia spirit of the heating in heating plant housing, is heated as being burnt in fuel incoming fuel device
Caused ammonia (about 1.5~3.5MPa, 100~170 DEG C) condenses from after generator Base top contact, liquid separation, and liquid phase separates certainly
Device returns to generator, 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 mistake
Cooler (being cooled to -5~35 DEG C of liquefaction in subcooler) cooling, liquefaction, supercooling turn into liquefied ammonia, and liquefied ammonia is stored in fluid reservoir, wherein
Gas phase during cold water heat taking and exchanging device by realizing heat supply；Liquefied ammonia cools through choke valve throttling of freezing, by adjusting operating condition, this
Temperature is minimum to be down to -5~-20 DEG C, preferably from about -10 DEG C, and by evaporator to environment cooling, liquefied ammonia evaporates and enters subcooler
Further heat 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 setting through high-low pressure pressure-reducing valve successively
The coil pipe being placed in absorber realizes heat supply；The ammonia spirit of generation is after solution pump is pressurized successively through ammonia/ammoniacal liquor heat exchanger
(being warming up to about 60~130 DEG C through ammonia/ammoniacal liquor heat exchanger) and ammonia/dilute ammonia heat exchanger heating are (through ammonia/dilute ammonia heat exchanger
It is warming up to 100~200 DEG C), 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 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 (9)
1. a kind of heat and cold supplier driven using natural gas, including it is cold as the heating plant of fuel and heat pump using natural gas
Hot combined supply apparatus；
The heating plant using natural gas as fuel includes being used to accommodate the housing of ammonia spirit, positioned at the dilute of lower housing portion
Ammoniacal liquor discharge connection, the coil heat exchanger being arranged in housing, the burner and coil heat exchange being connected with coil heat exchanger one end
The fume emission interface of device other end connection；One natural gas intake interface is set on burner；
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, 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 changes
Hot device includes ammoniacal liquor wing passage and dilute ammonia wing passage, and cold water heat taking and exchanging device includes aquaporin and ammonia wing passage, absorber bag
Include cooling water inlet, hot water outlet and be arranged on the heat exchanger tube being connected in absorber and with cooling water inlet and hot water outlet；
The generator is arranged at the top of heating plant housing, and generator bottom is with being used as the heating plant of fuel using natural gas
Top is connected, 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 and be connected to absorber, absorber outlet connection solution pump, solution pump discharge reconnect ammonia/ammoniacal liquor heat exchanger ammoniacal liquor side,
Ammoniacal liquor/dilute ammonia heat exchanger ammoniacal liquor wing passage, further returns to liquid phase entrance at the top of generator, composition simultaneously heat supply and cooling the
One 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 the second closed circulation of heat supply, cold water is through on absorber
The cold water interface of setting takes heat into absorber.
2. heat and cold supplier according to claim 1, it is characterised in that the separator top gas phase outlet conduit point
Go out a branch road, connect defrosting valve, the entrance of evaporator is connected to after the valve that defrosts.
3. heat and cold supplier according to claim 1 or 2, it is characterised in that burner is located at hull outside.
4. heat and cold supplier according to claim 1 or 2, it is characterised in that generator is formed integrally with heating plant.
5. the method that usage right requires the heat and cold supplier any one of 1-4 while heating and cooling, this method include
Following steps：
Natural gas ammonia spirit of the heating in heating plant housing, is heated and produced as being burnt in fuel incoming fuel device
1.5~3.5MPa, 100~170 DEG C of ammonias condense from after generator Base top contact, liquid separation, liquid phase from separator return occur
Device, gas phase is then cooled to 45~80 DEG C simultaneously to cold water heat supply by cold water heat taking and exchanging device, further by being dropped in subcooler
Temperature to -5~35 DEG C of liquefaction, supercooling turns into liquefied ammonia, and liquefied ammonia is stored in fluid reservoir；Liquefied ammonia passes through through choke valve throttling cooling of freezing
To environment cooling, liquefied ammonia evaporates and enters subcooler and further heat up to be mixed evaporator to 0~35 DEG C, into absorber and weak aqua ammonia
Conjunction turns into solution again；
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 0.2~2.5MPa, mixed subsequently into absorber with ammonia, at the same cold water enter absorber in take
Heat；The ammonia spirit of generation after solution pump is pressurized successively through ammonia/ammoniacal liquor heat exchanger be warming up 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.
6. according to the method for claim 5, it is characterised in that cold water of the cold water through cold water heat taking and exchanging device and absorber changes
50~65 DEG C of hot water is can obtain after heat pipe respectively.
7. according to the method for claim 6, it is characterised in that cold water of the cold water through cold water heat taking and exchanging device and absorber changes
55-60 DEG C of hot water is respectively obtained after heat pipe.
8. the method according to claim 5 or 6, it is characterised in that environment temperature is less than 5 DEG C, when humidity is higher than 70%, opens
Defrosting valve is opened to defrost to evaporator.
9. the method according to claim 5 or 6, it is characterised in that by adjusting operating condition, liquefied ammonia is through the choke valve that freezes
Throttling, the temperature to cool is minimum to be down to -5~-20 DEG C, preferably from about -10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710710010.8A CN107436053A (en) | 2017-08-18 | 2017-08-18 | A kind of heat and cold supplier and method using natural gas driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710710010.8A CN107436053A (en) | 2017-08-18 | 2017-08-18 | A kind of heat and cold supplier and method using natural gas driving |
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| Publication Number | Publication Date |
|---|---|
| CN107436053A true CN107436053A (en) | 2017-12-05 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710710010.8A Pending CN107436053A (en) | 2017-08-18 | 2017-08-18 | A kind of heat and cold supplier and method using natural gas driving |
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Citations (9)
| 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 |
| 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 |
| CN207081246U (en) * | 2017-08-18 | 2018-03-09 | 新地能源工程技术有限公司 | A kind of heat and cold supplier driven using natural gas |
-
2017
- 2017-08-18 CN CN201710710010.8A patent/CN107436053A/en active Pending
Patent Citations (9)
| 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 |
| 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 |
| CN207081246U (en) * | 2017-08-18 | 2018-03-09 | 新地能源工程技术有限公司 | A kind of heat and cold supplier driven using natural gas |
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