CN105674558B - Gas engine drives steam compressed and absorption combined heat pump Hot water units operation method - Google Patents
Gas engine drives steam compressed and absorption combined heat pump Hot water units operation method Download PDFInfo
- Publication number
- CN105674558B CN105674558B CN201610087543.0A CN201610087543A CN105674558B CN 105674558 B CN105674558 B CN 105674558B CN 201610087543 A CN201610087543 A CN 201610087543A CN 105674558 B CN105674558 B CN 105674558B
- Authority
- CN
- China
- Prior art keywords
- heat
- solution
- ammonia
- generator
- absorber
- 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.)
- Active
Links
Classifications
-
- 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
-
- 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
- F24H9/0005—Details for water heaters
-
- 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
- F25B30/00—Heat pumps
- F25B30/04—Heat pumps of the sorption type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses gas engine to drive steam compressed and absorption combined heat pump Hot water units operation method, it comprises the following steps:Gas engine-driven compressor work, by the gaseous state that refrigerant compression is high temperature and pressure, becomes liquid through heat exchange, then enters compressor after heat absorption is evaporated to gaseous state, forms compression-type refrigeration agent circulation；It further includes solution circulation and the circulation of refrigerant；Heat user backwater is divided into two-way and is heated, and after first via backwater carries out heat exchange in exhaust heat exchanger with the smoke evacuation of gas engine, then sequentially enters the first condenser and cylinder sleeve heat exchanger carries out heat exchange and raises return water temperature；Second road backwater enters the second condenser after absorbing the absorption heat produced in exterior cooling absorber, is carried out in second condenser and ammonia steam after heat exchange heats up for users to use for users to use.This method causes primary energy ratio to be improved.
Description
Technical field
The present invention relates to combined heat pump Hot water units operation method, more particularly to gas engine are driving steam compressed with inhaling
Recover box-like heat-pump hot-water unit operation method.
Background technology
In gas engine drives compression heat pump system, using physical properties and the second law of thermodynamics as foundation, combustion
Gas engine is done work with power driven compressor, coordinates condenser, the equipment such as expansion valve and evaporator, by varying refrigerant
State, achieve the purpose that refrigeration and heating.Meanwhile gas engine produces substantial amounts of thermal output, including followed in engine
Ring water waste heat and fume afterheat two parts.UTILIZATION OF VESIDUAL HEAT IN has diversified forms, can assisted evaporative, can defrosting, can also do manual labour hot water
Deng.But gas engine waste heat is only used for auxiliary heating and prepares domestic hot-water, and waste heat quality is not lifted further.And
Simultaneously massive life hot water is not required in a variety of building such as office buildings, office building, and applicability is restricted, it is impossible to gives full play to combustion gas
The advantage of machine heat pump.
There is the driving vapor compression heat pump systems structure of gas engine at present, heat is produced only with engine exhaust heat
Water, capacity usage ratio andEfficiency is not high, and waste heat quality is not also improved.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind to reduce thermal energy input, improves system
The coefficient of performance and the gas engine driving of primary energy ratio steam compressed run with absorption combined heat pump Hot water units
Method.
In order to achieve the above object, the technical solution adopted by the present invention is：
Gas engine of the present invention drives steam compressed and absorption combined heat pump Hot water units operation method, it includes following step
Suddenly:
Gas engine-driven compressor work, by the gas that the refrigerant compression of compression heat pump system is high temperature and pressure
State, gaseous refrigerant first pass through oil eliminator, and heat exchange is carried out by heat subsequently into the first condenser and first via user backwater
Amount passes to user's backwater, and refrigerant is condensed into the relatively low high-pressure liquid of temperature, into reservoir, then by expansion valve section
Enter the first evaporator after being changed into the liquid of low-temp low-pressure after stream expansion, external environment is absorbed in first evaporator
Heat and be evaporated to gaseous state, gaseous refrigerant enters compressor through gas-liquid separator, is compressed to the gaseous state of high temperature and pressure, so
Form a compression-type refrigeration agent circulation；
The smoke discharging residual heat of gas engine as the external heat generator of absorption type heat pump system driving heat source with it is outer
Ammonia spirit in portion's heating generator carries out heat exchange, and the ammonia spirit in external heat generator is heated by smoke discharging residual heat gives birth to
Ammonification steam and temperature are 130~170 DEG C, and pressure is 1.5~2.0MPa high temperature ammonium hydroxide weak solutions, and the high temperature ammonium hydroxide is dilute molten
Liquid enters solution heating generator by the pipeline equipped with the first solution pump and cools with ammonia spirit heat exchange to 110~150
DEG C, then enter absorber after the decompression of solution throttle valve cools to 80~140 DEG C, the ammonium hydroxide weak solution absorbing ammonia in absorber
Temperature is reduced to 60~80 DEG C after steam, becomes denseer ammonium hydroxide weak solution, subsequently into solution cooling absorption device, further
Absorbing ammonia steam causes ammonia spirit concentration further to raise, and finally enters exterior cooling absorber, absorbs from subcooler
Ammonia steam forms 40~60- DEG C of low temperature concentrated solution；Ammonium hydroxide concentrated solution outside second solution pumped in cooling absorber is sent
Enter pipeline, the pipeline enter solution cooling absorption device with after the ammonia spirit heat exchange heating in solution cooling absorption device again with
The ammonium hydroxide weak solution mixing that rectifier produces, then sequentially entering generator, solution heating generator, external heat generator makes
Ammonia evaporation generation ammonium hydroxide weak solution, forms solution circulation, in the process by being threaded through in generator and the absorber
Recycle heat pipeline in medium circulation will in absorber absorb heat transfer to generator；
Rectifier is entered by the ammonia steam of generator, solution heating generator, the generation of external heat generator, produces ammonium hydroxide
Weak solution and mass percent purity are not less than 99.5% ammonia steam, and the ammonia steam is used through the second condenser and the second tunnel
Family backwater be condensed into after heat exchange 40~60 DEG C of liquid, subsequently into subcooler with from the second evaporator-
20~5 DEG C of low temperature ammonia steam heat exchanges and be further cooled, then by becoming -20~5 DEG C of low temperature after expansion valve throttling expansion
The liquid ammonia of low pressure, the liquid ammonia of the low-temp low-pressure absorb external environment heat subsequently into the second evaporator and are evaporated,
Become -20~5 DEG C of low temperature ammonia steams, after heating up in the low temperature ammonia steam return subcooler by heat exchange heat absorption
It is sequentially sent to be only absorbed by the water in exterior cooling absorber, solution cooling absorption device and absorber and form ammonia spirit, it is described
Ammonia spirit in solution cooling absorption device and absorber eventually enters into exterior cooling absorber, by being provided with the first solution pump
Pipeline enter solution cooling absorption device absorb heat the ammonium hydroxide concentrated solution own temperature in pipeline is raised, then with from
The ammonium hydroxide weak solution mixing of rectifier, is sequentially sent to generator, solution heating generator and external heat generator, is formed
The circulation of refrigerant；
Heat user backwater is divided into two-way and is heated, first via backwater in exhaust heat exchanger with the smoke evacuation of gas engine into
After row heat exchange, then sequentially enter the first condenser and cylinder sleeve heat exchanger carries out heat exchange and raises return water temperature；Second tunnel
Backwater enters the second condenser after absorbing the absorption heat produced in exterior cooling absorber, is steamed in second condenser and ammonia
After gas progress heat exchange heating for users to use.
Compared with prior art, the invention has the advantages that：
The present invention can more efficiently improve engine exhaust heat utilization rate, and then improve primary energy ratio.
It is at present to use lithium bromide-device of working medium pair or ammonia-device of working medium pair in absorption type heat pump system more.The suction of the present invention
Receipts formula heat pump system, for both the above working medium to that can be applicable in, according to ammonia-water mixture pair, then this combined heat pump can be with
Suitable for the operating mode of lower temperature.No matter which kind of working medium pair used, it is required for coming to generator input thermal energy the fortune of drive system
OK.The present invention is using absorber, solution cooling absorption device, exterior cooling absorber, generator, solution heating generator and outer
Portion's heating generator has carried out thermal energy fully cascade utilization, reduces thermal energy input, improves the coefficient of performance of system.
While the present invention proposes to utilize gas engine power drive compression heat pump system, by the row of gas engine
Driving heat source of the cigarette waste heat as absorption type heat pump system, high efficiente callback make use of the waste heat of gas engine, meanwhile, absorbing
The heat of low-grade heat source (such as air, sewage, underground water) can be utilized in formula heat pump circulating system, substantially increases system
Primary energy utilization ratio andEfficiency.
In the present invention, the smoke discharging residual heat for driving gas engine in compression heat pump system using gas engine is used as absorption type heat
The driving thermal energy of pumping system, this not only efficiently utilizes gas-burning machine heat pump fume afterheat, and the meaning of bigger is to utilize absorption
Formula heat pump system obtains thermal energy from low-grade heat source again so that primary energy ratio is improved.
Brief description of the drawings
Fig. 1 is that the gas engine of the present invention is driving steam compressed with absorption combined heat pump Hot water units.
1-gas engine in figure, 2-compressor, 3-oil eliminator, the 4-the first condenser, 5-reservoir, 6-swollen
Swollen valve, the 7-the first evaporator, 8-gas-liquid separator, 9-external heat generator, 10-solution heating generator, 11-hair
Raw device, 12-absorber, 13-solution cooling absorption device, 14-outside cooling absorber, 15-rectifier, the 16-the second condensation
Device, 17-subcooler, the 18-the second evaporator, 19-cylinder sleeve heat exchanger, 20-exhaust heat exchanger, the 21-the second solution pump,
22-expansion valve, 23-solution throttle valve, the 24-the first solution pump
Embodiment
The present invention will be described in detail with specific embodiment below in conjunction with the accompanying drawings.
Gas engine of the present invention as shown in Figure 1 drives the steam compressed and operation side of absorption combined heat pump Hot water units
Method, it comprises the following steps:
Gas engine 1 drives compressor 2 to do work, by the gas that the refrigerant compression of compression heat pump system is high temperature and pressure
State, gaseous refrigerant first pass through oil eliminator 3, and carrying out heat exchange with first via user backwater subsequently into the first condenser 4 will
Heat transfer gives user's backwater, and refrigerant is condensed into the relatively low high-pressure liquid of temperature, into reservoir 5, then by expansion
Enter the first evaporator after being changed into the liquid of low-temp low-pressure after 6 throttling expansion of valve, absorbed in first evaporator 7 extraneous
The heat of environment and be evaporated to gaseous state, gaseous refrigerant through gas-liquid separator 8 enter compressor 2, be compressed to high temperature and pressure
Gaseous state, is thusly-formed a compression-type refrigeration agent circulation；
The smoke discharging residual heat of gas engine 1 as the external heat generator 9 of absorption type heat pump system driving heat source with
Ammonia spirit in external heat generator 9 carries out heat exchange, and the ammonia spirit in external heat generator 9 is added by smoke discharging residual heat
It is 130~170 DEG C to be thermally generated ammonia steam and temperature, and pressure is 1.5~2.0MPa high temperature ammonium hydroxide weak solutions, the high temperature ammonium hydroxide
Weak solution by the pipeline equipped with the first solution pump 24 enter the heat exchange of solution heating generator 10 and ammonia spirit cool to
110~150 DEG C, then enter absorber 12, the ammonia in absorber 12 after the decompression of solution throttle valve 23 cools to 80~140 DEG C
Temperature is reduced to 60~80 DEG C after water weak solution absorbing ammonia steam, becomes denseer ammonium hydroxide weak solution, is cooled down subsequently into solution
In absorber 13, further absorbing ammonia steam causes ammonia spirit concentration further to raise, and finally enters exterior cooling absorber
14, absorb the low temperature concentrated solution that the ammonia steam from subcooler 17 forms 40~60 DEG C；Second solution pump 21 extracts exterior cooling out
Ammonium hydroxide concentrated solution in absorber 14 is sent into pipeline, and the pipeline enters solution cooling absorption device 13 and solution cooling absorption device
The ammonium hydroxide weak solution produced again with rectifier 15 after ammonia spirit heat exchange heating in 13 mixes, and then sequentially enters generator
11st, solution heating generator 10, external heat generator 9 make ammonia evaporation generation ammonium hydroxide weak solution, form solution circulation, herein mistake
By the medium circulation that is threaded through in the recycle heat pipeline in generator 11 and the absorber 12 by absorber 12 in journey
Middle absorption heat transfer is to generator 11；
The ammonia steam generated by generator 11, solution heating generator 10, external heat generator 9 enters rectifier 15,
Produce the ammonia steam of ammonium hydroxide weak solution and mass percent purity not less than 99.5%.The ammonia steam is through the second condenser 16
With second tunnel user's backwater be condensed into after heat exchange 40~60 DEG C of liquid, subsequently into subcooler 17 with from the
- 20~5 DEG C of low temperature ammonia steam heat exchanges of two evaporators 18 and be further cooled, then by becoming after 22 throttling expansion of expansion valve
Into the liquid ammonia of -20~5 DEG C of low-temp low-pressures.The liquid ammonia of the low-temp low-pressure absorbs the external world subsequently into the second evaporator 18
Ambient heat and be evaporated, become -20~5 DEG C of low temperature ammonia steams.The low temperature ammonia steam, which is returned in the subcooler 17, to be led to
It is sequentially sent to be inhaled by water in exterior cooling absorber 14, solution cooling absorption device 13 and absorber 12 after crossing heat exchange heat absorption heating
Receive and form ammonia spirit, the ammonia spirit in the solution cooling absorption device and absorber eventually enters into exterior cooling and absorbs
Device 14, the pipeline by being provided with the first solution pump 21 enter the ammonium hydroxide in the absorption heat pipeline of solution cooling absorption device 13
Concentrated solution own temperature raises, and is then mixed with the ammonium hydroxide weak solution from rectifier 15, is sequentially sent to generator 11, solution
Heating generator 10 and external heat generator 9, form the circulation of refrigerant.
Heat user backwater is divided into two-way and is heated, row of the first via backwater in exhaust heat exchanger 20 with gas engine 1
After cigarette carries out heat exchange, then sequentially enter condenser 4 and cylinder sleeve heat exchanger 19 carries out heat exchange and raises return water temperature；Second
Road backwater enters condenser 16 after absorbing the absorption heat produced in exterior cooling absorber 14, is steamed in the condenser 16 and ammonia
After gas progress heat exchange heating for users to use, after final two-way water return pipeline hot water mixing for users to use.
A kind of system of method according to the present invention, it includes compression heat pump system, absorption type heat pump system and heating
Water supply and return system；
The compression heat pump system includes gas engine 1, the output shaft and compressor of the gas engine 1
2 shaft is connected, and it is cold that the refrigerant outlet of the compressor 2 by the first connecting pipeline is sequentially connected oil eliminator 3, first
Condenser 4, reservoir 5, expansion valve 6, the first evaporator 7, the refrigerant inlet of gas-liquid separator 8 and compressor 2；
The absorption type heat pump system includes rectifier 15, and the ammonium hydroxide weak solution outlet of the rectifier 15 passes through the
Two connecting pipelines are sequentially communicated generator 11, solution heating generator 10 and external heat generator 9；The external heat
The ammonia vapor outlet port at the top of generator 9 is sequentially connected solution heating generator 10, generator 11 and essence by ammonia vapor line
Evaporate the material inlet of device 15；The high temperature ammonium hydroxide weak solution outlet of 9 bottom of external heat generator passes through the 3rd connecting tube
Line enters solution heating generator 10 after connecting the first solution pump 24, and the 3rd connecting pipeline is heated through the solution
After generator 10 14 phase of absorber is cooled down with solution throttle valve 23, absorber 12, solution cooling absorption device 13 and outside successively
Connection；The low temperature ammonium hydroxide concentrated solution outlet of 14 bottom of exterior cooling absorber is molten by the connection second of the 4th connecting pipeline
Enter solution cooling absorption device 13 after liquid pump 21, the 4th connecting pipeline pass through after the solution cooling absorption device 13 with
The second connecting pipeline between the outlet of ammonium hydroxide weak solution and generator 11 positioned at rectifier 15 is connected；The rectifier
15 ammonia solution vapor outlet port by the 5th connecting pipeline be sequentially connected the second condenser 16, subcooler 17 liquid ammonia import,
It is liquid ammonia outlet, expansion valve 22, the second evaporator 18, the 17 gaseous ammonia import of subcooler, gaseous ammonia outlet, described outer
Portion's cooling absorber 14, the solution cooling absorption device 13 and the absorber 12；Recycle heat pipeline is threaded through institute
So that the ammonia-water mixture in generator 11 and absorber 12 passes through in recycle heat pipeline in the generator 11 and absorber 12 stated
Media implementation heat transfer, circulating pump is installed on the recycle heat pipeline；The smoke evacuation of the gas engine 1 goes out
Mouth is connected with one end of flue, and the portions of the flue are threaded through the external heat generator 9
In and the other end be connected with the smoke inlet of exhaust heat exchanger；
The backwater of the heating water supply and return system is divided into two-way, wherein being sequentially connected the exhaust heat exchanger all the way
20th, the first condenser 4 and cylinder sleeve heat exchanger 19 make return water temperature be connected after raising with water supply pipe, and another way is cold through outside
But be connected successively with the second condenser 16 and water supply pipe after absorber 14, after the mixing of final two-way water return pipeline hot water for
Family uses.
Embodiment 1
Gas engine 1 drives compressor 2 to do work, by the gas that the refrigerant compression of compression heat pump system is high temperature and pressure
State, gaseous refrigerant first pass through oil eliminator 3, and carrying out heat exchange with first via user backwater subsequently into the first condenser 4 will
Heat transfer gives user's backwater, and refrigerant is condensed into the relatively low high-pressure liquid of temperature, into reservoir 5, then by expansion
Enter the first evaporator after being changed into the liquid of low-temp low-pressure after 6 throttling expansion of valve, absorbed in first evaporator 7 extraneous
The heat of environment and be evaporated to gaseous state, gaseous refrigerant through gas-liquid separator 8 enter compressor 2, be compressed to high temperature and pressure
Gaseous state, is thusly-formed a compression-type refrigeration agent circulation；
The smoke discharging residual heat of gas engine 1 as the external heat generator 9 of absorption type heat pump system driving heat source with
Ammonia spirit in external heat generator 9 carries out heat exchange, and the ammonia spirit in external heat generator 9 is added by smoke discharging residual heat
It is 170 DEG C to be thermally generated ammonia steam and temperature, and pressure is 2.0MPa high temperature ammonium hydroxide weak solutions, and the high temperature ammonium hydroxide weak solution passes through
Pipeline equipped with the first solution pump 24 enters solution heating generator 10 and cools with ammonia spirit heat exchange to 150 DEG C, then passes through
The decompression of solution throttle valve 23 enters absorber 12 after cooling to 140 DEG C, the ammonium hydroxide weak solution absorbing ammonia steam in absorber 12
Temperature is reduced to 80 DEG C afterwards, becomes denseer ammonium hydroxide weak solution, subsequently into solution cooling absorption device 13, further absorbing ammonia
Steam causes ammonia spirit concentration further to raise, and finally enters exterior cooling absorber 14, absorbs the ammonia from subcooler 17
Steam forms 60 DEG C of low temperature concentrated solution；The ammonium hydroxide concentrated solution that second solution pump 21 is extracted out in exterior cooling absorber 14 is sent into pipe
Road, the pipeline enter after the ammonia spirit heat exchange heating in solution cooling absorption device 13 and solution cooling absorption device 13 again with
The ammonium hydroxide weak solution mixing that rectifier 15 produces, then sequentially enters generator 11, solution heating generator 10, external heat hair
Raw device 9 makes ammonia evaporation generation ammonium hydroxide weak solution, forms solution circulation, in the process by being threaded through generator 11 and described
The medium circulation in recycle heat pipeline in absorber 12 will absorb heat transfer to generator 11 in absorber 12；
The ammonia steam generated by generator 11, solution heating generator 10, external heat generator 9 enters rectifier 15,
Produce the ammonia steam of ammonium hydroxide weak solution and mass percent purity not less than 99.5%.The ammonia steam is through the second condenser 16
Liquid with being condensed into 60 DEG C after second tunnel user's backwater progress heat exchange, steams subsequently into subcooler 17 with coming from second
Send out 5 DEG C of low temperature ammonia steam heat exchanges of device 18 and be further cooled, then by becoming 5 DEG C of low temperature after 22 throttling expansion of expansion valve
The liquid ammonia of low pressure.The liquid ammonia of the low-temp low-pressure absorbs external environment heat subsequently into the second evaporator 18 and is steamed
Hair, becomes 5 DEG C of low temperature ammonia steams.After being heated up in the low temperature ammonia steam return subcooler 17 by heat exchange heat absorption
It is sequentially sent to be only absorbed by the water in exterior cooling absorber 14, solution cooling absorption device 13 and absorber 12 and form ammonia spirit,
Ammonia spirit in the solution cooling absorption device and absorber eventually enters into exterior cooling absorber 14, by being provided with the
The pipeline of one solution pump 21 causes the ammonium hydroxide concentrated solution own temperature liter in pipeline into the absorption heat of solution cooling absorption device 13
Height, then mixes with the ammonium hydroxide weak solution from rectifier 15, be sequentially sent to generator 11, solution heating generator 10 and
External heat generator 9, forms the circulation of refrigerant.
Heat user backwater is divided into two-way and is heated, row of the first via backwater in exhaust heat exchanger 20 with gas engine 1
After cigarette carries out heat exchange, then sequentially enter the first condenser 4 and cylinder sleeve heat exchanger 19 carries out heat exchange and raises return water temperature；
Second road backwater enters the second condenser 16 after absorbing the absorption heat produced in exterior cooling absorber 14, cold in described second
Condenser 16 after final two-way water return pipeline hot water mixing after the progress heat exchange heating of ammonia steam for user with for users to use, making
With.
Low grade residual heat is fully used using this method, the coefficient of performance of system is significantly improved, greatly
The big primary energy ratio for improving system.
Embodiment 2
Gas engine 1 drives compressor 2 to do work, by the gas that the refrigerant compression of compression heat pump system is high temperature and pressure
State, gaseous refrigerant first pass through oil eliminator 3, and carrying out heat exchange with first via user backwater subsequently into the first condenser 4 will
Heat transfer gives user's backwater, and refrigerant is condensed into the relatively low high-pressure liquid of temperature, into reservoir 5, then by expansion
Enter the first evaporator after being changed into the liquid of low-temp low-pressure after 6 throttling expansion of valve, absorbed in first evaporator 7 extraneous
The heat of environment and be evaporated to gaseous state, gaseous refrigerant through gas-liquid separator 8 enter compressor 2, be compressed to high temperature and pressure
Gaseous state, is thusly-formed a compression-type refrigeration agent circulation；
The smoke discharging residual heat of gas engine 1 as the external heat generator 9 of absorption type heat pump system driving heat source with
Ammonia spirit in external heat generator 9 carries out heat exchange, and the ammonia spirit in external heat generator 9 is added by smoke discharging residual heat
It is 150 DEG C to be thermally generated ammonia steam and temperature, and pressure is 1.8MPa high temperature ammonium hydroxide weak solutions, and the high temperature ammonium hydroxide weak solution passes through
Pipeline equipped with the first solution pump 24 enters solution heating generator 10 and cools with ammonia spirit heat exchange to 130 DEG C, then passes through
The decompression of solution throttle valve 23 enters absorber 12 after cooling to 110 DEG C, the ammonium hydroxide weak solution absorbing ammonia steam in absorber 12
Temperature is reduced to 70 DEG C afterwards, becomes denseer ammonium hydroxide weak solution, subsequently into solution cooling absorption device 13, further absorbing ammonia
Steam causes ammonia spirit concentration further to raise, and finally enters exterior cooling absorber 14, absorbs the ammonia from subcooler 17
Steam forms 50 DEG C of low temperature concentrated solution；The ammonium hydroxide concentrated solution that second solution pump 21 is extracted out in exterior cooling absorber 14 is sent into pipe
Road, the pipeline enter after the ammonia spirit heat exchange heating in solution cooling absorption device 13 and solution cooling absorption device 13 again with
The ammonium hydroxide weak solution mixing that rectifier 15 produces, then sequentially enters generator 11, solution heating generator 10, external heat hair
Raw device 9 makes ammonia evaporation generation ammonium hydroxide weak solution, forms solution circulation, in the process by being threaded through generator 11 and described
The medium circulation in recycle heat pipeline in absorber 12 will absorb heat transfer to generator 11 in absorber 12；
The ammonia steam generated by generator 11, solution heating generator 10, external heat generator 9 enters rectifier 15,
Produce the ammonia steam of ammonium hydroxide weak solution and mass percent purity not less than 99.5%.The ammonia steam is through the second condenser 16
Liquid with being condensed into 50 DEG C after second tunnel user's backwater progress heat exchange, steams subsequently into subcooler 17 with coming from second
Hair device 18, -10 DEG C of low temperature ammonia steam heat exchanges and be further cooled, then by becoming -10 after 22 throttling expansion of expansion valve
The liquid ammonia of DEG C low-temp low-pressure.The liquid ammonia of the low-temp low-pressure subsequently into the second evaporator 18 absorb external environment heat and
It is evaporated, becomes -10 DEG C of low temperature ammonia steams.The low temperature ammonia steam returns to be absorbed heat in the subcooler 17 by heat exchange
It is sequentially sent to be only absorbed by the water in exterior cooling absorber 14, solution cooling absorption device 13 and absorber 12 and form ammonium hydroxide after heating
Solution, the ammonia spirit in the solution cooling absorption device and absorber eventually enter into exterior cooling absorber 14, pass through peace
Pipeline equipped with the first solution pump 21 causes the ammonium hydroxide concentrated solution itself in pipeline into the absorption heat of solution cooling absorption device 13
Temperature raises, and is then mixed with the ammonium hydroxide weak solution from rectifier 15, is sequentially sent to generator 11, solution heating generator
10 and external heat generator 9, form the circulation of refrigerant.
Heat user backwater is divided into two-way and is heated, row of the first via backwater in exhaust heat exchanger 20 with gas engine 1
After cigarette carries out heat exchange, then sequentially enter the first condenser 4 and cylinder sleeve heat exchanger 19 carries out heat exchange and raises return water temperature；
Second road backwater enters the second condenser 16 after absorbing the absorption heat produced in exterior cooling absorber 14, cold in described second
Condenser 16 after final two-way water return pipeline hot water mixing after the progress heat exchange heating of ammonia steam for user with for users to use, making
With.
Low grade residual heat is fully used using this method, the coefficient of performance of system is significantly improved, greatly
The big primary energy ratio for improving system.
Embodiment 3
Gas engine 1 drives compressor 2 to do work, by the gas that the refrigerant compression of compression heat pump system is high temperature and pressure
State, gaseous refrigerant first pass through oil eliminator 3, and carrying out heat exchange with first via user backwater subsequently into the first condenser 4 will
Heat transfer gives user's backwater, and refrigerant is condensed into the relatively low high-pressure liquid of temperature, into reservoir 5, then by expansion
Enter the first evaporator after being changed into the liquid of low-temp low-pressure after 6 throttling expansion of valve, absorbed in first evaporator 7 extraneous
The heat of environment and be evaporated to gaseous state, gaseous refrigerant through gas-liquid separator 8 enter compressor 2, be compressed to high temperature and pressure
Gaseous state, is thusly-formed a compression-type refrigeration agent circulation；
The smoke discharging residual heat of gas engine 1 as the external heat generator 9 of absorption type heat pump system driving heat source with
Ammonia spirit in external heat generator 9 carries out heat exchange, and the ammonia spirit in external heat generator 9 is added by smoke discharging residual heat
It is 130 DEG C to be thermally generated ammonia steam and temperature, and pressure is 1.5MPa high temperature ammonium hydroxide weak solutions, and the high temperature ammonium hydroxide weak solution passes through
Pipeline equipped with the first solution pump 24 enters solution heating generator 10 and cools with ammonia spirit heat exchange to 110 DEG C, then passes through
The decompression of solution throttle valve 23 enters absorber 12 after cooling to 80 DEG C, after the ammonium hydroxide weak solution absorbing ammonia steam in absorber 12
Temperature is reduced to 60 DEG C, becomes denseer ammonium hydroxide weak solution, and subsequently into solution cooling absorption device 13, further absorbing ammonia steams
Gas causes ammonia spirit concentration further to raise, and finally enters exterior cooling absorber 14, absorbs the ammonia from subcooler 17 and steam
Gas forms 40 DEG C of low temperature concentrated solution；The ammonium hydroxide concentrated solution that second solution pump 21 is extracted out in exterior cooling absorber 14 is sent into pipe
Road, the pipeline enter after the ammonia spirit heat exchange heating in solution cooling absorption device 13 and solution cooling absorption device 13 again with
The ammonium hydroxide weak solution mixing that rectifier 15 produces, then sequentially enters generator 11, solution heating generator 10, external heat hair
Raw device 9 makes ammonia evaporation generation ammonium hydroxide weak solution, forms solution circulation, in the process by being threaded through generator 11 and described
The medium circulation in recycle heat pipeline in absorber 12 will absorb heat transfer to generator 11 in absorber 12；
The ammonia steam generated by generator 11, solution heating generator 10, external heat generator 9 enters rectifier 15,
Produce the ammonia steam of ammonium hydroxide weak solution and mass percent purity not less than 99.5%.The ammonia steam is through the second condenser 16
Liquid with being condensed into 40 DEG C after second tunnel user's backwater progress heat exchange, steams subsequently into subcooler 17 with coming from second
Send out -20 DEG C of low temperature ammonia steam heat exchanges of device 18 and be further cooled, then by becoming -20 DEG C after 22 throttling expansion of expansion valve
The liquid ammonia of low-temp low-pressure.The liquid ammonia of the low-temp low-pressure subsequently into the second evaporator 18 absorb external environment heat and by
Evaporation, becomes -20 DEG C of low temperature ammonia steams.The low temperature ammonia steam is returned to absorb heat by heat exchange in the subcooler 17 and risen
It is sequentially sent to be only absorbed by the water in exterior cooling absorber 14, solution cooling absorption device 13 and absorber 12 after temperature and to form ammonium hydroxide molten
Liquid, the ammonia spirit in the solution cooling absorption device and absorber eventually enter into exterior cooling absorber 14, pass through installation
The pipeline for having the first solution pump 21 enters the absorption heat of solution cooling absorption device 13 and make it that the ammonium hydroxide concentrated solution itself in pipeline is warm
Degree rise, then mixes with the ammonium hydroxide weak solution from rectifier 15, is sequentially sent to generator 11, solution heating generator 10
And external heat generator 9, form the circulation of refrigerant.
Heat user backwater is divided into two-way and is heated, row of the first via backwater in exhaust heat exchanger 20 with gas engine 1
After cigarette carries out heat exchange, then sequentially enter the first condenser 4 and cylinder sleeve heat exchanger 19 carries out heat exchange and raises return water temperature；
Second road backwater enters the second condenser 16 after absorbing the absorption heat produced in exterior cooling absorber 14, cold in described second
Condenser 16 after final two-way water return pipeline hot water mixing after the progress heat exchange heating of ammonia steam for user with for users to use, making
With.
Low grade residual heat is fully used using this method, the coefficient of performance of system is significantly improved, greatly
The big primary energy ratio for improving system.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if those skilled in the art
Member is enlightened by it, and without departing from the spirit of the invention, element moulding, connection mode not inventively design,
The frame mode similar to the technical solution and embodiment, are within the scope of protection of the invention.
Claims (1)
1. gas engine drives steam compressed and absorption combined heat pump Hot water units operation method, it is characterised in that it includes following
Step：
Gas engine-driven compressor work, by the gaseous state that the refrigerant compression of compression heat pump system is high temperature and pressure, gas
State refrigerant first passes through oil eliminator, and heat exchange is carried out by heat transfer subsequently into the first condenser and first via user backwater
User's backwater is given, refrigerant is condensed into the relatively low high-pressure liquid of temperature, into reservoir, then by expansion valve throttling expansion
Enter the first evaporator after being changed into the liquid of low-temp low-pressure afterwards, the heat of external environment is absorbed in first evaporator and is steamed
Send out and enter compressor for gaseous state, gaseous refrigerant through gas-liquid separator, be compressed to the gaseous state of high temperature and pressure, be thusly-formed one
A compression-type refrigeration agent circulation；
The smoke discharging residual heat of gas engine adds as the driving heat source of the external heat generator of absorption type heat pump system with exterior
Ammonia spirit in heater carries out heat exchange, and the ammonia spirit in external heat generator heats generation ammonia by smoke discharging residual heat
Steam and temperature are 130~170 DEG C, and pressure is 1.5~2.0MPa high temperature ammonium hydroxide weak solutions, and the high temperature ammonium hydroxide weak solution is led to
The pipeline equipped with the first solution pump is crossed to cool to 110~150 DEG C into solution heating generator and ammonia spirit heat exchange, then
Enter absorber after the decompression of solution throttle valve cools to 80~140 DEG C, the ammonium hydroxide weak solution absorbing ammonia steam in absorber
Temperature is reduced to 60~80 DEG C afterwards, becomes denseer ammonium hydroxide weak solution, subsequently into solution cooling absorption device, further absorbs
Ammonia steam causes ammonia spirit concentration further to raise, and finally enters exterior cooling absorber, absorbs the ammonia from subcooler and steam
Gas forms 40~60 DEG C of low temperature concentrated solution；Ammonium hydroxide concentrated solution outside second solution pumped in cooling absorber is sent into pipe
Road, the pipeline enter after the ammonia spirit heat exchange heating in solution cooling absorption device and solution cooling absorption device again with rectifying
The ammonium hydroxide weak solution mixing that device produces, then sequentially entering generator, solution heating generator, external heat generator steams ammonia
Ammonium hydroxide weak solution occurs into, forms solution circulation, in the process the heat by being threaded through in generator and the absorber
The medium circulation measured in circulation line will absorb heat transfer to generator in absorber；
Rectifier is entered by the ammonia steam of generator, solution heating generator, the generation of external heat generator, it is dilute molten to produce ammonium hydroxide
Liquid and mass percent purity are not less than 99.5% ammonia steam, and ammonia of the mass percent purity not less than 99.5% steams
Gas is condensed into 40~60 DEG C of liquid after the second condenser and second tunnel user's backwater carry out heat exchange, subsequently into supercooling
It is further cooled with -20~5 DEG C of low temperature ammonia steam heat exchanges from the second evaporator in device, then is throttled by expansion valve
Become the liquid ammonia of -20~5 DEG C of low-temp low-pressures after expansion, the liquid ammonia of the low-temp low-pressure is inhaled subsequently into the second evaporator
Receive external environment heat and be evaporated, become -20~5 DEG C of low temperature ammonia steams, the low temperature ammonia steam returns to the subcooler
In by being sequentially sent to be only absorbed by the water in exterior cooling absorber, solution cooling absorption device and absorber after heat exchange heat absorption heating
And ammonia spirit is formed, the ammonia spirit in the solution cooling absorption device and absorber eventually enters into exterior cooling and absorbs
Device, the pipeline by being provided with the first solution pump enter the ammonium hydroxide concentrated solution in solution cooling absorption device absorption heat pipeline
Own temperature raises, and is then mixed with the ammonium hydroxide weak solution from rectifier, is sequentially sent to generator, solution heating generator
And external heat generator, form the circulation of refrigerant；
Heat user backwater is divided into two-way and is heated, and first via backwater carries out heat in exhaust heat exchanger with the smoke evacuation of gas engine
After exchange, then sequentially enter the first condenser and cylinder sleeve heat exchanger carries out heat exchange and raises return water temperature；Second road backwater
Enter the second condenser after absorbing the absorption heat produced in exterior cooling absorber, second condenser and ammonia steam into
After row heat exchange heating for users to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610087543.0A CN105674558B (en) | 2016-02-16 | 2016-02-16 | Gas engine drives steam compressed and absorption combined heat pump Hot water units operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610087543.0A CN105674558B (en) | 2016-02-16 | 2016-02-16 | Gas engine drives steam compressed and absorption combined heat pump Hot water units operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105674558A CN105674558A (en) | 2016-06-15 |
| CN105674558B true CN105674558B (en) | 2018-05-08 |
Family
ID=56305681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610087543.0A Active CN105674558B (en) | 2016-02-16 | 2016-02-16 | Gas engine drives steam compressed and absorption combined heat pump Hot water units operation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105674558B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579105A (en) * | 2018-10-30 | 2019-04-05 | 中国科学院理化技术研究所 | Gas absorption heat pump system |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595122B (en) * | 2016-12-07 | 2019-03-08 | 天津城建大学 | The gas engine compression absorption composite heat pump heat supply method switched in series and parallel |
| CN106895603B (en) * | 2017-02-28 | 2019-08-06 | 天津城建大学 | Compression/absorption enclosed parallel connection composite fuel gas heat pump system operation method |
| CN107461799A (en) * | 2017-07-07 | 2017-12-12 | 清华大学 | A kind of heating equipment and heat supply method |
| CN108731295B (en) * | 2018-06-13 | 2023-04-18 | 成都爱信智能技术有限责任公司 | Heat recovery gas air conditioning system |
| CN113686051B (en) * | 2021-08-16 | 2023-01-17 | 山东大学 | Open type compression absorption heat pump system for recovering water heat in high-temperature and high-humidity gas |
| CN113865143A (en) * | 2021-08-23 | 2021-12-31 | 深圳市燃气集团股份有限公司 | Refrigerating system powered by gas internal combustion engine |
| CN113847753A (en) * | 2021-08-23 | 2021-12-28 | 深圳市燃气集团股份有限公司 | Natural gas cold and heat cogeneration system |
| CN116907119A (en) * | 2023-07-12 | 2023-10-20 | 中国科学院高能物理研究所 | Superconductive accelerator waste heat recycling platform |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0836058A1 (en) * | 1996-04-25 | 1998-04-15 | The Chugoku Electric Power Co., Inc. | Compression absorption heat pump |
| KR20030073942A (en) * | 2002-03-14 | 2003-09-19 | 진금수 | Heat pump type hot water heating apparatus |
| CN1804511A (en) * | 2006-01-23 | 2006-07-19 | 李华玉 | Compression-absorption combined heat pump heating system |
| CN101440998A (en) * | 2007-11-22 | 2009-05-27 | 海尔集团公司 | Heat pump water heater |
| CN201561564U (en) * | 2009-11-06 | 2010-08-25 | 清华大学 | Direct combustion air source absorption type heat pump hot water device |
-
2016
- 2016-02-16 CN CN201610087543.0A patent/CN105674558B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0836058A1 (en) * | 1996-04-25 | 1998-04-15 | The Chugoku Electric Power Co., Inc. | Compression absorption heat pump |
| KR20030073942A (en) * | 2002-03-14 | 2003-09-19 | 진금수 | Heat pump type hot water heating apparatus |
| CN1804511A (en) * | 2006-01-23 | 2006-07-19 | 李华玉 | Compression-absorption combined heat pump heating system |
| CN101440998A (en) * | 2007-11-22 | 2009-05-27 | 海尔集团公司 | Heat pump water heater |
| CN201561564U (en) * | 2009-11-06 | 2010-08-25 | 清华大学 | Direct combustion air source absorption type heat pump hot water device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579105A (en) * | 2018-10-30 | 2019-04-05 | 中国科学院理化技术研究所 | Gas absorption heat pump system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105674558A (en) | 2016-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105674558B (en) | Gas engine drives steam compressed and absorption combined heat pump Hot water units operation method | |
| CN104929706B (en) | Combined cycle energy supplying system | |
| CN106895603B (en) | Compression/absorption enclosed parallel connection composite fuel gas heat pump system operation method | |
| WO2020248684A1 (en) | Total heat recovery type integrated gas heat pump heat supply unit and application thereof | |
| CN104964477B (en) | A kind of multistage plate evaporation absorption type refrigerating unit and method | |
| CN104374117B (en) | Water chilling unit and control method | |
| CN108826418A (en) | A kind of residual heat from boiler fume recovery system and working method based on gas-burning machine heat pump | |
| CN2913969Y (en) | Compression type and absorption type associated refrigerating plant | |
| CN104697227A (en) | Evaporation condensation high-efficiency screw water chilling unit with deep supercooling device | |
| CN109612158B (en) | Lithium bromide absorption and compression combined type high-temperature heat pump system and working method | |
| CN208704000U (en) | A kind of residual heat from boiler fume recovery system based on gas-burning machine heat pump | |
| CN201844606U (en) | Novel high-efficiency and direct-fired lithium bromide absorption-type water heater/chiller | |
| CN108674126A (en) | A kind of half effect absorption system using automobile engine residual heat driving | |
| CN105004095B (en) | A kind of trans critical cycle and the combined heat-pump system of two-stage absorption heat pump coproduction | |
| CN204329397U (en) | Water chilling unit | |
| CN106403283A (en) | Hot water type heat pump system | |
| CN207741379U (en) | A kind of absorption deep refrigerating system of industrial waste heat driving | |
| CN206755651U (en) | Compression/absorption enclosed parallel connection composite fuel gas heat pump assembly | |
| CN206695430U (en) | First class lithium bromide absorptive heat pump unit with condensate recuperation of heat | |
| CN219810071U (en) | Heat exchange system | |
| CN205383781U (en) | Compression of driving vapour of gasengine and absorption combined type heat pump water heater group | |
| CN204902309U (en) | Multistage plate type evaporation absorbed refrigeration device | |
| CN104963733B (en) | Combined cycle energy supplying system | |
| CN208108536U (en) | A kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system | |
| CN110307665A (en) | Direct-fired lithium bromide absorption type cold water, heat pump unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |