CN114754514A - Environment-friendly refrigerator cyclic utilization system - Google Patents
Environment-friendly refrigerator cyclic utilization system Download PDFInfo
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- CN114754514A CN114754514A CN202210676687.5A CN202210676687A CN114754514A CN 114754514 A CN114754514 A CN 114754514A CN 202210676687 A CN202210676687 A CN 202210676687A CN 114754514 A CN114754514 A CN 114754514A
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- ammonia
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- circulation
- condenser
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- 125000004122 cyclic group Chemical group 0.000 title description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 66
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 42
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 42
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000004939 coking Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000004064 recycling Methods 0.000 claims abstract description 14
- 238000005057 refrigeration Methods 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical class N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 90
- 229910021529 ammonia Inorganic materials 0.000 claims description 38
- 239000006096 absorbing agent Substances 0.000 claims description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 239000010936 titanium Substances 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000000571 coke Substances 0.000 claims description 5
- 230000006872 improvement Effects 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004781 supercooling Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000003034 coal gas Substances 0.000 abstract 1
- 230000008859 change Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/04—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being ammonia evaporated from aqueous solution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
-
- 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
- F25B33/00—Boilers; Analysers; Rectifiers
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Power Engineering (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention relates to the technical field of ammonia water type refrigerating machine equipment, and discloses an environment-friendly refrigerating machine recycling system, which comprises the following steps: step S1: during coking production, the method is divided into a rectification tower cooling circulation and external cooling circulation double circulation system, firstly, ammonia solution is added into a rectification tower, and lithium bromide solution is added into the other circulation system; step S2: the ammonia solution added in step S1 is subjected to concentration increase in the stripping section of the rectifying tower; according to the invention, through the double circulation system of the ammonia solution and the lithium bromide solution, the problems that the refrigeration effect of the traditional refrigerator is ensured by burning and heating coal gas in the operation process of the refrigerator, the unorganized emission of sulfur dioxide and nitric oxide is generated, and the environmental influence is caused are solved.
Description
Technical Field
The invention relates to the technical field of ammonia water type refrigerating machine equipment, in particular to an environment-friendly refrigerating machine recycling system.
Background
The coking plant is a professional plant specially used for producing metallurgical coke and smelting coking products, processing and recovering, wherein coking refers to the process of carbonizing and zooming organic substances, and high-temperature dry distillation is adopted in dry distillation of coal.
In petroleum processing, coking is short for residual oil coking, and refers to the process coking of heavy oil by deep cracking and condensation reaction at high temperature of about 500 ℃ to produce gas, gasoline, diesel oil, wax oil and petroleum coke, which mainly comprises five process processes of delayed coking, kettle coking, open hearth coking, fluid coking, flexible coking and the like.
The coking process needs to be carried out at the temperature of 500 ℃, so refrigeration is inevitably carried out through a refrigerating unit, the smooth operation of coking work is ensured, and along with the upgrading of the production technology of a coking plant, the environmental protection supervision pressure is added in recent years, a plurality of old coking plants face the situation that the technology is laggard and the environmental protection is laggard, the production process index is laggard, the production data exceeds the standard, and the equipment updating iteration is an inevitable trend.
Disclosure of Invention
In order to overcome the above defects in the prior art, the embodiments of the present invention provide an environmentally friendly refrigerator recycling system, and the technical problems to be solved by the present invention are: when the traditional coking plant is cooled, the environmental protection is backward.
In order to achieve the purpose, the invention provides the following technical scheme: the environment-friendly refrigerating machine recycling system comprises the following steps:
step S1: during the production of the coke, the method is divided into a rectification tower cooling circulation and external cooling circulation double circulation system, firstly, an ammonia solution is added into a rectification tower, and a lithium bromide solution is added into the other circulation system;
step S2: the ammonia solution added in step S1 is concentrated in the stripping section of the rectifying tower, and the concentration of the ammonia solution is increased in the stripping section and is changed into saturated ammonia vapor through the rectifying section;
step S3: the saturated ammonia vapor in the step S2 enters a condenser for heat exchange with a lithium bromide solution after the flow of the saturated ammonia vapor is controlled by a throttle valve, and then becomes dilute liquid ammonia and enters an evaporator for absorbing heat during coking to become ammonia vapor;
step S4: the ammonia vapor generated in step S3 passes through the absorber, absorbs the vapor in the evaporator, turns into a concentrated ammonia solution, and enters the rectifying tower for repeated use.
In a preferred embodiment, the ammonia solution in step S1 is added to a rectification column, and the lithium bromide solution and the ammonia solution are heat-exchanged and separated from each other.
In a preferred embodiment, an evaporator, an absorber, a condenser and a generator are arranged in the refrigeration system, the generator is positioned in the rectifying tower, the pressure in the absorber is required to be lower than the evaporation pressure, and the pressure in the generator is higher than the pressure in the condenser.
In a preferred embodiment, the rectification tower is divided into the following components from bottom to top: the ammonia water in the generation section enters the stripping section for concentration improvement after being heated by the generation section, and enters the rectification section after the concentration of the ammonia water in the stripping section is improved, and the ammonia water becomes ammonia vapor in a saturated state for circulation.
In a preferred embodiment, when ammonia vapor generated in the rectifying section enters the condenser for condensation, the flow rate of the ammonia vapor needs to be controlled through two throttle valves, and the supercooling degree of the ammonia vapor during condensation is increased, wherein the two throttle valves are respectively positioned at the junction of the rectifying tower and the condenser and at the junction of the condenser and the evaporator.
In a preferred embodiment, the refrigeration system adopts a double circulation mode of ammonia circulation and lithium bromide circulation, the contact position of ammonia vapor and lithium bromide solution is made of stainless steel, and the pipeline of ammonia vapor entering the condenser is made of titanium pipe.
In a preferred embodiment, the refrigerator is installed by:
step A1: dismantling the original direct-fired refrigerator, and piling the dismantled original foundation again;
step A2: hoisting a new refrigerating machine system on the foundation piled in the step A1, and performing wiring operation;
step A3: b, synchronously constructing the circulating ammonia water pipeline in the new refrigerating machine system in the step A2, and pressing to be qualified;
step A4: and D, adding ammonia water into the refrigerator in the step A3 for circulation, and starting the refrigerator for debugging.
The invention has the technical effects and advantages that:
1. the invention has the advantages that the double circulating system of the ammonia solution and the lithium bromide solution is arranged, the problem that the traditional refrigerator needs gas combustion heating to ensure the refrigerating effect of the refrigerator in the running process is avoided, and the problem that the environment is influenced by the unorganized emission of sulfur dioxide and nitric oxide generated in the gas combustion process is solved;
2. according to the invention, the lithium bromide is set as the second circulating solution, and the lithium bromide solution is a non-toxic and colorless solution, so that the poisoning phenomenon cannot occur when the lithium bromide solution is used, the water vapor partial pressure of the lithium bromide solution is lower, and the number of water molecules in the unit vapor volume on the liquid surface is less than that on the surface of pure water, so that the lithium bromide solution has a better heat absorption effect;
3. the invention uses the double-circulation refrigeration mode, so the temperature difference change experienced by the refrigeration system is more frequent, the stainless steel is used at the contact position, the possibility of damaging the components can be reduced, the titanium pipe is used at the access section of the condenser, so the damage caused by the severe temperature change when the ammonia vapor at the pipeline position enters the condenser can be avoided, and the titanium pipe is only arranged at the access section due to the higher price, so the economic cost can be controlled.
Drawings
Fig. 1 is a schematic diagram of the overall refrigeration process of the present invention.
Fig. 2 is a schematic diagram of the overall refrigeration principle of the present invention.
Fig. 3 is a schematic structural diagram of the overall refrigeration principle of the invention.
Fig. 4 is a schematic view of the installation process of the present invention.
The reference signs are: A. a rectifying tower; B. a condenser; C. an evaporator; D. an absorber; E. a heat exchanger; G. a solution pump; J. a throttle valve; r, a condenser; z, an evaporator; a. a generation section; b. a stripping section; c. a rectifying section; d. a solution pump; e. a generator; f. an absorber.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and the configurations of the respective structures described in the following embodiments are merely examples, and the eco-friendly refrigerator recycling system according to the present invention is not limited to the respective structures described in the following embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
Referring to fig. 1, the invention provides an environment-friendly refrigerator recycling system, comprising the following steps:
step S1: during the production of the coke, the method is divided into a rectification tower cooling circulation and external cooling circulation double circulation system, firstly, an ammonia solution is added into a rectification tower, and a lithium bromide solution is added into the other circulation system;
step S2: the ammonia solution added in step S1 is in the stripping section of the rectifying tower, the concentration of the stripping section is increased, and the ammonia solution is changed into saturated ammonia vapor through the rectifying section;
step S3: the saturated ammonia vapor in the step S2 enters a condenser for heat exchange with a lithium bromide solution after the flow of the saturated ammonia vapor is controlled by a throttle valve, and then becomes dilute liquid ammonia and enters an evaporator for absorbing heat during coking to become ammonia vapor;
step S4: the ammonia vapor generated in step S3 passes through the absorber, absorbs the vapor in the evaporator, turns into a concentrated ammonia solution, and enters the rectifying tower for repeated use.
Referring to fig. 2 and 3, the ammonia solution in step S1 is added to the rectifying tower, and the lithium bromide solution and the ammonia solution are heat-exchanged and separated from each other.
The working principle and the beneficial effects of the technical scheme are as follows:
the lithium bromide solution is nontoxic and colorless, so that the poisoning phenomenon can not occur when the lithium bromide solution is used, the water vapor partial pressure of the lithium bromide solution is lower, the number of water molecules in the unit vapor volume on the liquid surface is less than that of water molecules on the surface of pure water, and the lithium bromide solution can not volatilize in the adopted temperature range due to the very high boiling point of the lithium bromide, and the stability is higher.
Referring to fig. 2 and 3, an evaporator, an absorber, a condenser and a generator are arranged in the refrigeration system, the generator is positioned in the rectifying tower, the pressure in the absorber needs to be lower than the evaporation pressure, and the pressure in the generator is higher than the pressure in the condenser;
the working principle and the beneficial effects of the technical scheme are as follows:
when ammonia water circulates, the ammonia water can be changed into ammonia gas after absorbing heat, when liquid phase and gas phase are converted, the pressure is reduced when the gas phase is converted into the liquid phase, the pressure is increased when the liquid phase is converted into the gas phase, and the pressure is set in advance, so that when liquid phase-gas phase-liquid phase are converted into each other in the circulation of liquid ammonia, the inside of the ammonia water can be kept stable, and the possibility of pipeline explosion is reduced.
Referring to fig. 2 and 3, the interior of the rectifying tower is divided into: the ammonia water in the generation section enters the stripping section for concentration improvement after being heated by the generation section, and enters the rectification section after the concentration of the ammonia water in the stripping section is improved, and the ammonia water becomes ammonia vapor in a saturated state for circulation.
The working principle and the beneficial effects of the technical scheme are as follows:
the ammonia solution concentration that enters into in the rectifying column is lower, consequently can't provide the heat when enough ammonia vapor absorbs the coking, consequently heats the back once more through the stripping section, improves the concentration of ammonia vapor, behind the rethread rectifying section, makes its ampere vapour that becomes saturated state, can carry out the heat exchange capacity this moment and be the highest, and the heat of taking out at every turn is more, and carries out the speed of heat exchange formula with lithium bromide higher, can improve work efficiency.
Referring to fig. 2 and 3, when ammonia vapor generated in the rectifying section enters the condenser for condensation, the flow rate of the ammonia vapor needs to be controlled by two throttle valves, and the supercooling degree of the ammonia vapor during condensation is increased, wherein the two throttle valves are respectively positioned at the junction of the rectifying tower and the condenser and at the junction of the condenser and the evaporator.
The working principle and the beneficial effects of the technical scheme are as follows:
when ammonia vapor carries out heat exchange through lithium bromide solution and releases the heat, through the flow of throttle valve control ammonia vapor this moment, reduce the speed of ammonia vapor circulation this moment, thereby reduce the volume with the ammonia vapor of lithium bromide contact, the temperature of lithium bromide solution can be far less than the temperature of ammonia vapor, the super-cooled degree when ammonia vapor liquefies this moment is great, consequently here enough lithium bromide solution and super-cooled degree can absorb the heat in the ammonia vapor occasionally, avoid ammonia vapor to flow back to the emergence section and can't play the effect of absorbing the heat.
Referring to fig. 2 and 3, the refrigeration system is internally provided with an ammonia circulation and lithium bromide circulation double circulation mode, the contact position of ammonia vapor and a lithium bromide solution is made of stainless steel, and the pipeline where the ammonia vapor enters a condenser is made of a titanium pipe.
The working principle and the beneficial effects of the technical scheme are as follows:
because the refrigeration system is internally provided with a double-circulation mode, the temperature difference change experienced by the refrigeration system is more frequent, the stainless steel has a smaller linear expansion coefficient, and therefore the stainless steel is used at a contact position to reduce the possibility of part damage, the connection section of the condenser is a titanium pipe, and the linear expansion coefficient of the titanium pipe is extremely low, so that the ammonia vapor at the position of a pipeline can be prevented from entering the condenser to be damaged due to severe temperature change, and the titanium pipe is higher in price, so that the temperature change is only needed to be arranged at the position, and the economic cost can be controlled.
Referring to fig. 4, the refrigerator is installed by the following steps:
step A1: dismantling the original direct-fired refrigerator, and piling the dismantled original foundation again;
step A2: hoisting a new refrigerating machine system on the foundation piled in the step A1, and performing wiring operation;
step A3: b, synchronously constructing the circulating ammonia water pipeline in the new refrigerating machine system in the step A2, and pressing to be qualified;
step A4: and D, adding ammonia water into the refrigerator in the step A3 for circulation, and starting the refrigerator for debugging.
Through installing new cooling system on the basis of former direct combustion type refrigerator, at first can not change cooling circulation system's position, therefore former coke equipment need not to change, and will directly demolish and retrieve with regard to the machine, and recovery cost that can be timely is carried out debugging operation back with new refrigerating system, can directly produce, is favorable to accelerating the production process.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," "connecting," and "connecting" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be directly connected, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiment of the invention, only the structures related to the rules of the disclosed embodiment are related, other structures can refer to common design, and the same embodiment and different embodiments of the invention can be combined mutually under the condition of no conflict;
and finally: the present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The environment-friendly refrigerator recycling system is characterized in that: the method comprises the following steps:
step S1: during the production of the coke, the method is divided into a rectification tower cooling circulation and external cooling circulation double circulation system, firstly, an ammonia solution is added into a rectification tower, and a lithium bromide solution is added into the other circulation system;
step S2: the ammonia solution added in step S1 is in the stripping section of the rectifying tower, the concentration of the stripping section is increased, and the ammonia solution is changed into saturated ammonia vapor through the rectifying section;
step S3: the saturated ammonia vapor in the step S2 enters a condenser for heat exchange with a lithium bromide solution after the flow of the saturated ammonia vapor is controlled by a throttle valve, and then becomes dilute liquid ammonia and enters an evaporator for absorbing heat during coking to become ammonia vapor;
step S4: the ammonia vapor generated in step S3 passes through the absorber, absorbs the vapor in the evaporator, turns into a concentrated ammonia solution, and enters the rectifying tower for repeated use.
2. The environment-friendly refrigerator recycling system according to claim 1, wherein: the ammonia solution in the step S1 is added to a rectifying tower, and the lithium bromide solution and the ammonia solution are subjected to heat exchange and are separated from each other.
3. The environmentally friendly chiller recycling system of claim 2, wherein: the refrigeration system is internally provided with an evaporator, an absorber, a condenser and a generator, wherein the generator is positioned in the rectifying tower, the pressure in the absorber needs to be lower than the evaporation pressure, and the pressure in the generator is higher than the pressure in the condenser.
4. The environmentally friendly chiller recycling system of claim 3, wherein: the interior of the rectifying tower is divided into: the ammonia water in the generation section enters the stripping section for concentration improvement after being heated by the generation section, and enters the rectification section after the concentration of the ammonia water is improved by the stripping section, and the ammonia steam in a saturated state circulates.
5. The environmentally friendly chiller recycling system of claim 4, wherein: when ammonia vapor generated by the rectifying section enters the condenser for condensation, the flow rate is controlled by a throttle valve, and the supercooling degree of the ammonia vapor during condensation is increased.
6. The environmentally friendly refrigerator recycling system of claim 5, wherein: the number of the throttle valves is two, and the throttle valves are respectively positioned at the junction of the rectifying tower and the condenser and at the junction of the condenser and the evaporator.
7. The environmentally friendly chiller recycling system of claim 1, wherein: the inside of the refrigerating system adopts a double circulation mode of ammonia circulation and lithium bromide circulation, the contact position of ammonia vapor and lithium bromide solution is made of stainless steel, and the pipeline where the ammonia vapor enters the condenser is made of a titanium pipe.
8. The environmentally friendly chiller recycling system of claim 1, wherein: the refrigerator is installed by the following steps:
step A1: dismantling the original direct-fired refrigerator, and piling the dismantled original foundation again;
step A2: hoisting a new refrigerating machine system on the foundation piled in the step A1, and performing wiring operation;
step A3: b, synchronously constructing the circulating ammonia water pipeline in the new refrigerating machine system in the step A2, and pressing to be qualified;
step A4: and D, adding ammonia water into the refrigerator in the step A3 for circulation, and starting the refrigerator for debugging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210676687.5A CN114754514A (en) | 2022-06-16 | 2022-06-16 | Environment-friendly refrigerator cyclic utilization system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210676687.5A CN114754514A (en) | 2022-06-16 | 2022-06-16 | Environment-friendly refrigerator cyclic utilization system |
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| CN114754514A true CN114754514A (en) | 2022-07-15 |
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| CN202210676687.5A Pending CN114754514A (en) | 2022-06-16 | 2022-06-16 | Environment-friendly refrigerator cyclic utilization system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1288605C (en) * | 1984-11-13 | 1991-09-10 | Edward A. Reid, Jr. | Absorption refrigeration and heat pump system |
| EP2133636A1 (en) * | 2008-06-09 | 2009-12-16 | Consejo Superior De Investigaciones Científicas | Absorber and absorber-evaporator assembly for absorption machines and lithium bromide - water absorption machines that integrate said absorber and absorber-evaporator assembly |
| CN103629854A (en) * | 2013-10-28 | 2014-03-12 | 大连理工大学 | Ammonia and lithium bromide integrated absorption refrigeration device driven by heating medium water and method |
| US8720216B1 (en) * | 2013-10-01 | 2014-05-13 | King Fahd University Of Petroleum And Minerals | Hybrid aqua-ammonia and lithium bromide-water absorption chiller |
| CN210070294U (en) * | 2019-06-14 | 2020-02-14 | 荏原冷热系统（中国）有限公司 | Second-class absorption heat pump for purifying ammonia vapor and system for purifying ammonia vapor |
-
2022
- 2022-06-16 CN CN202210676687.5A patent/CN114754514A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1288605C (en) * | 1984-11-13 | 1991-09-10 | Edward A. Reid, Jr. | Absorption refrigeration and heat pump system |
| EP2133636A1 (en) * | 2008-06-09 | 2009-12-16 | Consejo Superior De Investigaciones Científicas | Absorber and absorber-evaporator assembly for absorption machines and lithium bromide - water absorption machines that integrate said absorber and absorber-evaporator assembly |
| US8720216B1 (en) * | 2013-10-01 | 2014-05-13 | King Fahd University Of Petroleum And Minerals | Hybrid aqua-ammonia and lithium bromide-water absorption chiller |
| CN103629854A (en) * | 2013-10-28 | 2014-03-12 | 大连理工大学 | Ammonia and lithium bromide integrated absorption refrigeration device driven by heating medium water and method |
| CN210070294U (en) * | 2019-06-14 | 2020-02-14 | 荏原冷热系统（中国）有限公司 | Second-class absorption heat pump for purifying ammonia vapor and system for purifying ammonia vapor |
Non-Patent Citations (1)
| Title |
|---|
| 吴业正: "《制冷原理及设备》", 31 December 2010, 西安交通大学出版社 * |
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