CN203837368U - Coordination refrigeration cold storage capable of absorbing waste heat - Google Patents
Coordination refrigeration cold storage capable of absorbing waste heat Download PDFInfo
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- CN203837368U CN203837368U CN201420168959.1U CN201420168959U CN203837368U CN 203837368 U CN203837368 U CN 203837368U CN 201420168959 U CN201420168959 U CN 201420168959U CN 203837368 U CN203837368 U CN 203837368U
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- refrigeration
- intercooler
- pressure compressor
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- additional issue
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 51
- 239000002918 waste heat Substances 0.000 title abstract description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 33
- 238000010521 absorption reaction Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000013535 sea water Substances 0.000 claims abstract description 11
- 230000003750 conditioning effect Effects 0.000 claims description 10
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 19
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000008236 heating water Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011555 saturated liquid Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 235000004789 Rosa xanthina Nutrition 0.000 description 1
- 241000109329 Rosa xanthina Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model discloses a coordination refrigeration cold storage capable of absorbing waste heat, and belongs to the field of ship mechanical refrigeration. The coordination refrigeration cold storage capable of absorbing waste heat comprises a diesel engine, a water tank, a generator, a refrigeration device and a waste heat absorption refrigeration coordination device. The refrigeration device comprises a first evaporator, a second evaporator, a low-pressure compressor, an intercooler, a high-pressure compressor and a condenser, wherein a first branch and a second branch are formed at a liquid outlet end of the condenser, a first magnetic valve and a second expansion valve are arranged on the first branch, the second expansion valve is connected with the intercooler, one end of the intercooler is connected with the high-pressure compressor through a pipeline, and the second branch is communicated with the intercooler through a pipeline and then is connected with the first evaporator and the second evaporator. The waste heat obtained after power generation of a diesel engine is used, mutual conversion between pure ammonia and an ammonia-water solution is achieved through a vapor generator, a rectifier, a seawater cooling assembly and the like to achieve refrigeration, the refrigeration effect of a Freon cooling device is improved, the energy utilization rate of the diesel engine is largely improved, and the refrigeration effect of a fishing ship is largely improved.
Description
Technical field
The utility model relates to exhaust-heat absorption and coordinates refrigeration freezer, belongs to ship machinery refrigeration technology field.
Background technology
Along with scientific and technological development, the fisheries industry of China is more and more flourishing, and especially marine fishing, for we provide abundant marine product, when fishing boat is at sea fished, is often to close on summer, suitable sweltering heat cabin in, catch marine product needs freezing in time.Fishing boat except utilize band ice to fish carry out fresh-keeping, also can carry out refrigerating fresh-keeping by refrigeration machine.Common compression refrigerating machine need to expend a large amount of electric energy of fishing boat, and the diesel engine of small fishing vessel is difficult to meet the electric energy that its refrigeration expends.In addition, because compression-type refrigeration adopts R12 or R22 cold-producing medium at present, there is the situation that ODP and GWP are larger, disabled according to Montreal Agreement.
When the diesel engine of fishing boat moves, conventionally diesel engine can only be converted into useful mechanical energy by 30%-40% of the whole energy of fuel, all the other 60%-70% are all to emit with the form of heat, its main form of export has cooling water, waste gas, radiation (conventionally can reach 35%-40% with the heat of waste gas form discharge, exhaust temperature is 400-450 DEG C).For prevent from condensing and flue gas in corrosivity effect, consider the restriction of the final exhaust temperature of flue gas, conventionally final exhaust gas temperature is decided to be to 200 DEG C of left and right, can reclaims only about half of fume afterheat, this part waste heat is comparatively suitable as the thermal source of absorption refrigeration.Can adopt seawater as cooling water, utilize the waste heat of diesel engine of fishing vessel, in the time that diesel engine starts, exhaust gas temperature just can start refrigeration system after reaching adsorption temp, substantially can meet the freeze preservation requirement of fishing for fishery-ies product simultaneously.
Utilize motor exhaust as power, domestic and international many researchers study this, but all not all roses.
Through the retrieval of prior art is found, Chinese patent ZL200820057333.8, discloses a kind of phase-change energy storage type fishing boat tail gas refrigeration system, is mainly made up of fishing boat tail gas refrigeration machine, regenerator and air-cooler; Described fishing boat tail gas refrigeration machine is leaded up to electromagnetic valve I by the refrigerating medium after cooling and is connect mutually with regenerator with electric control valve I, and the electromagnetic valve I of separately leading up to connects with the air-cooler in fish storehouse mutually with electric control valve III.But this technology use single absorption (absorption) formula refrigeration system and complex structure efficiency lower.
Summary of the invention
The purpose of this utility model is to provide exhaust-heat absorption and coordinates refrigeration freezer.
Technical problem to be solved in the utility model is: provide a kind of energy that makes full use of diesel engine to be convenient to store the exhaust-heat absorption coordination refrigeration freezer of marine product to fishing boat refrigeration.
For realizing the purpose of this utility model, the technical solution adopted in the utility model is:
Exhaust-heat absorption is coordinated refrigeration freezer, comprise diesel engine, water tank, generator, refrigerating plant, also comprise exhaust-heat absorption refrigeration conditioning unit, described refrigerating plant comprises the first additional issue device, the second additional issue device, low pressure compressor, intercooler, high pressure compressor, condenser; Described high pressure compressor is connected with condenser, condenser outlet end forms the first branch and the second branch, the first branch is provided with the first magnetic valve, the second expansion valve, the second expansion valve is connected with intercooler by the road, intercooler one end is connected with high pressure compressor pipeline, and the second branch is connected with the second additional issue device with the first additional issue device after being communicated with by the road intercooler.
Described low pressure compressor outlet side is provided with the second magnetic valve and the 3rd magnetic valve, and the second magnetic valve is connected with intercooler by the road, and the 3rd magnetic valve is connected with the second additional issue device with the first additional issue device after being communicated with by the road intercooler; The first additional issue device is connected with low pressure compressor with the second additional issue device.
Described exhaust-heat absorption refrigeration conditioning unit comprises steam generator, rectifier, cooled with seawater assembly, the first expansion valve that order is connected, also comprise ammonia scrubber, solution heat exchanger, solution pump, the first expansion valve is connected with ammonia scrubber after being communicated with by the road intercooler, ammonia scrubber is communicated with solution heat exchanger through solution pump, solution heat exchanger is communicated with steam generator, steam generator and water tank heat exchange.
Between the second additional issue device and low pressure compressor, be provided with equilibrated valve.
The beneficial effects of the utility model are: a kind of exhaust-heat absorption of the utility model is coordinated the exhaust-heat absorption refrigeration conditioning unit of refrigeration freezer, utilize diesel power generation waste heat afterwards, water in heating water tank, realize pure ammonia by parts such as steam generator, rectifier, cooled with seawater assemblies and realize refrigeration to the mutual conversion between ammonia spirit, and improve the refrigeration of freon cooling installation; Greatly improve the energy utilization rate of diesel engine, also greatly increase fishing boat refrigeration simultaneously.
Brief description of the drawings
Fig. 1 is the schematic diagram that the utility model exhaust-heat absorption is coordinated refrigeration freezer.
In figure: 1, diesel engine 2, water tank 3, generator 4.1, the first additional issue device 4.2, the second additional issue device 5, low pressure compressor 6, intercooler 7, high pressure compressor 8, condenser 9.1, the first magnetic valve 9.2, the second magnetic valve 9.3, the 3rd magnetic valve 10.1, the first expansion valve 10.2, the second expansion valve 11, steam generator 12, rectifier 13, cooled with seawater assembly 14, ammonia scrubber 15, solution heat exchanger 16, solution pump 17, equilibrated valve.
Detailed description of the invention
Exhaust-heat absorption is coordinated refrigeration freezer, comprise diesel engine 1, water tank 2, generator 3, refrigerating plant, also comprise exhaust-heat absorption refrigeration conditioning unit, described refrigerating plant comprises the first additional issue device 4.1, the second additional issue device 4.2, low pressure compressor 5, intercooler 6, high pressure compressor 7, condenser 8, described high pressure compressor 7 is connected with condenser 8, condenser 8 outlet ends form the first branch and the second branch, the first branch is provided with the first magnetic valve 9.1, the second expansion valve 10.2, the second expansion valve 10.2 is connected with intercooler 6 by the road, intercooler 6 one end are connected with high pressure compressor 7 pipelines, the second branch is connected with the second additional issue device 4.2 with the first additional issue device 4.1 after being communicated with by the road intercooler 6.
Described low pressure compressor 5 outlet sides are provided with the second magnetic valve 9.2 and the 3rd magnetic valve 9.3, the second magnetic valve 9.2 is connected with intercooler 6 by the road, and the 3rd magnetic valve 9.3 is connected with the second additional issue device 4.2 with the first additional issue device 4.1 after being communicated with by the road intercooler 6;
Described the first additional issue device 4.1 is connected with low pressure compressor 5 with the second additional issue device 4.2.
Described exhaust-heat absorption refrigeration conditioning unit comprises steam generator 11, rectifier 12, cooled with seawater assembly 13, the first expansion valve 10.1 that order is connected, also comprise ammonia scrubber 14, solution heat exchanger 15, solution pump 16, the first expansion valve 10.1 is connected with ammonia scrubber 14 after being communicated with by the road intercooler 6, ammonia scrubber 14 is communicated with solution heat exchanger 15 through solution pump 16, solution heat exchanger 15 is communicated with steam generator 11, steam generator 11 and water tank 2 heat exchanges.
Between the second additional issue device 4.2 and low pressure compressor 5, be provided with equilibrated valve 17.
The utility model refrigeration has three kinds of methods of operation.
The first is conventional operation, it is exhaust-heat absorption refrigeration conditioning unit, this ammonia refrigeration system (absorption system) is in off position, and only having refrigerating plant is the Two-stage Compression refrigerating state that high pressure compressor 7, low pressure compressor 5 are worked, for high low-temperature cold store provides cold.At this moment the state that the first magnetic valve 9.1, the second magnetic valve 9.2 are out, the 3rd magnetic valve 9.3 is the states that close.Cold-producing medium is pressed into condenser 8 by high pressure compressor 7, after fluorine condenser, cold-producing medium (such as R23) becomes saturated liquid state, before intercooler 6, be divided into the first branch and the second branch, the second branch flows into the heat exchange coil in intercooler 6, the second expansion valve 10.2, through the first magnetic valve 9.1, is flow through, evaporative cooling in intercooler 6 in the first branch.The flow through saturated cold-producing medium of the second branch in intercooler 6 coil pipes, crosses cold rear cold-producing medium and flows directly into high low-temperature cold store, for freezer refrigerating; Enter intercooler 6 from high low-temperature cold store cold-producing medium out by low pressure compressor 5 compressions, then be pressed into condenser 8 by high pressure compressor 7, circulation and so forth.
When the second method of operation, at this moment the first magnetic valve 9.1, the 3rd magnetic valve 9.3 closed conditions, the state of the second magnetic valve 9.2 in opening.Exhaust-heat absorption refrigeration conditioning unit, this ammonia refrigeration system (absorption system) and high-low pressure compressor are all devoted oneself to work.Rely on water in generating diesel engine 1 and main frame cylinder cooling water and exhaust heat heating water tank 2, make it to 80 DEG C~90 DEG C, absorption system is started working, hot water is at the interior heating ammonia spirit of steam generator 11, ammonia evaporates from the aqueous solution, after rectifier 12, ammonia is separated from water, be cooled to liquefied ammonia through cooled with seawater assembly 13, then after the first expansion valve 10.1 throttlings, evaporative cooling in intercooler 6, from, the saturated liquid freon that condenser 8 flows out, through intercooler 6 time, liquefied ammonia makes its large temperature difference excessively cold (degree of supercooling while referring to comparison conventional operation) issue additional the cold that supplies of device 4.2 to increase follow-up the first evaporimeter 4.1 and second in high low-temperature cold store.Ammonia evaporates rear the inflow in ammonia scrubber 14 of gasification and is absorbed by water in intercooler 6, and heat of solution is taken away by seawater, and ammonia spirit, by solution pump 16 blowback steam generators 11, passes through solution heat exchanger 15 therebetween, by the hot water heating from steam generator 11; Cross heat absorption additional issue in the first evaporimeter 4.1 in high low-temperature cold store of freon refrigerant after cold and the second additional issue device 4.2, enter intercooler 6 from high low-temperature cold store cold-producing medium out by low pressure compressor 5 compressions, be pressed into condenser 8 by high pressure compressor 7 again, and so forth circulation.
When the third method of operation, this mode is actually exhaust-heat absorption refrigeration conditioning unit, i.e. ammonia refrigeration system (absorption system) and low pressure compression refrigeration is repeatedly formula work again.High pressure compressor 7 is out of service.At this moment the first magnetic valve 9.1, the second magnetic valve 9.2 are closed, the state that the 3rd magnetic valve 9.3 is out.Ammonia refrigeration system (absorption system) and low pressure compressor are all devoted oneself to work.Rely on water in generating diesel engine 1 and main frame cylinder cooling water and exhaust heat heating water tank 2, make it to 80 DEG C~90 DEG C, absorption system is started working, hot water is at the interior heating ammonia spirit of steam generator 11, ammonia evaporates from the aqueous solution, after rectifier 12, ammonia is separated from water, be cooled to liquefied ammonia through cooled with seawater assembly 13, then after the first expansion valve 10.1 throttlings, in intercooler 6, evaporative cooling flows to the saturated liquid freon intercooler 6 from the 3rd magnetic valve 9.3, the first evaporimeter 4.1 and second entering after making it cross unexpectedly in the warm freezer of height is issued additional heat absorption additional issue in device 4.2, enter intercooler 6 from high low-temperature cold store cold-producing medium out by low pressure compressor 5 compressions, the liquefied ammonia of intercooler 6 of being flowed through again freezes, circulation and so forth.Ammonia now evaporates rear the inflow in ammonia scrubber 14 of gasification and is absorbed by water in intercooler 6, heat of solution is taken away by seawater, ammonia spirit, by solution pump 16 blowback steam generators 11, passes through solution heat exchanger 15 therebetween, by the hot water heating from steam generator 11; This state is exactly that low pressure compressor 5 is carried out circulation, completes the refrigeration to high low-temperature cold store.
Claims (2)
1. exhaust-heat absorption is coordinated refrigeration freezer, comprise diesel engine (1), water tank (2), generator (3), refrigerating plant, it is characterized in that: also comprise exhaust-heat absorption refrigeration conditioning unit, described refrigerating plant comprises the first additional issue device (4.1), the second additional issue device (4.2), low pressure compressor (5), intercooler (6), high pressure compressor (7), condenser (8), described high pressure compressor (7) is connected with condenser (8), condenser (8) outlet end forms the first branch and the second branch, the first branch is provided with the first magnetic valve (9.1), the second expansion valve (10.2), the second expansion valve (10.2) is connected with intercooler (6) by the road, intercooler (6) one end is connected with high pressure compressor (7) pipeline, the second branch is connected with the second additional issue device (4.2) with the first additional issue device (4.1) after being communicated with by the road intercooler (6),
Described low pressure compressor (5) outlet side is provided with the second magnetic valve (9.2) and the 3rd magnetic valve (9.3), the second magnetic valve (9.2) is connected with intercooler (6) by the road, and the 3rd magnetic valve (9.3) is connected with the second additional issue device (4.2) with the first additional issue device (4.1) after being communicated with by the road intercooler (6);
Described the first additional issue device (4.1) is connected with low pressure compressor (5) with the second additional issue device (4.2);
Described exhaust-heat absorption refrigeration conditioning unit comprises the steam generator (11) that order is connected, rectifier (12), cooled with seawater assembly (13), the first expansion valve (10.1), also comprise ammonia scrubber (14), solution heat exchanger (15), solution pump (16), the first expansion valve (10.1) is connected with ammonia scrubber (14) after being communicated with by the road intercooler (6), ammonia scrubber (14) is communicated with solution heat exchanger (15) through solution pump (16), solution heat exchanger (15) is communicated with steam generator (11), steam generator (11) and water tank (2) heat exchange.
2. exhaust-heat absorption according to claim 1 is coordinated refrigeration freezer, it is characterized in that: between described the second additional issue device (4.2) and low pressure compressor (5), be provided with equilibrated valve (17).
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103868277A (en) * | 2014-04-09 | 2014-06-18 | 浙江海洋学院 | Waste heat absorption refrigeration coordinating two-stage compression refrigeration cold storage device of fishing boat |
CN108106050A (en) * | 2018-01-15 | 2018-06-01 | 江苏乐科节能科技股份有限公司 | The refrigeration system and method for chilled water are produced using low-grade exhaust heat |
-
2014
- 2014-04-09 CN CN201420168959.1U patent/CN203837368U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103868277A (en) * | 2014-04-09 | 2014-06-18 | 浙江海洋学院 | Waste heat absorption refrigeration coordinating two-stage compression refrigeration cold storage device of fishing boat |
CN103868277B (en) * | 2014-04-09 | 2017-02-01 | 浙江海洋学院 | Waste heat absorption refrigeration coordinating two-stage compression refrigeration cold storage device of fishing boat |
CN108106050A (en) * | 2018-01-15 | 2018-06-01 | 江苏乐科节能科技股份有限公司 | The refrigeration system and method for chilled water are produced using low-grade exhaust heat |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20150409 |
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EXPY | Termination of patent right or utility model |