CN107062681B - Adsorption type refrigerating system and refrigerating method based on fume exhaust equipment - Google Patents
Adsorption type refrigerating system and refrigerating method based on fume exhaust equipment Download PDFInfo
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- CN107062681B CN107062681B CN201710352658.2A CN201710352658A CN107062681B CN 107062681 B CN107062681 B CN 107062681B CN 201710352658 A CN201710352658 A CN 201710352658A CN 107062681 B CN107062681 B CN 107062681B
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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
- F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention provides an adsorption refrigeration system and a refrigeration method based on a fume exhaust device, wherein the refrigeration system comprises: the desorption adsorption device is used for adsorbing and desorbing the refrigerant and comprises an adsorption bed device and a lampblack absorber cover, wherein the adsorption bed device comprises at least one adsorption bed and is arranged in the lampblack absorber cover, and the desorption adsorption device is used for adsorbing and desorbing the refrigerant; the heat release device is connected with the desorption adsorption device and is used for condensing the refrigerant desorbed by the desorption adsorption device; and one end of the heat absorption refrigeration device is connected with the heat release device to receive the refrigerant output by the heat release device, and the other end of the heat absorption refrigeration device is connected with the desorption adsorption device to provide the refrigerant for the desorption adsorption device. The adsorption bed device of the adsorption refrigeration system based on the fume exhaust equipment is combined with the fume exhaust hood, heat is accumulated by utilizing the characteristics of large area and close to a heat source of the fume exhaust hood (fume exhaust hood), and the occupied space of the equipment is saved.
Description
Technical Field
The invention belongs to the technical field of refrigeration, and particularly relates to an adsorption refrigeration system and a refrigeration method based on lampblack discharging equipment.
Background
With the great improvement of the living standard of people, the air conditioner becomes a necessary household appliance for families gradually, and on the other hand, the environment is greatly destroyed by using the traditional refrigeration mode in a large range.
The traditional refrigeration technology scheme mainly utilizes the refrigerant to evaporate or condense under the action of the compressor, thereby initiating the evaporation or condensation of ambient air so as to achieve the purpose of changing temperature and humidity. The technical proposal can consume a great deal ofCertain damage to the environment can be caused, and in particular, the traditional refrigeration technical scheme has a plurality of defects: (1) the large-scale use of the traditional refrigeration mode has caused great damage to the environment, and chlorofluorocarbon refrigerants (CFC and HCFC for short) are widely adopted, which can catalyze and decompose ozone to generate ozone layer cavity; (2) the conventional high-energy-consumption refrigeration demand occupies the rapid increase of the national power consumption proportion, causes the power shortage, builds various power stations everywhere, has main firepower and generates a large amount of coal-fired CO 2 Enhancing the greenhouse effect, causing global warming; (3) the shortage of energy source has become a worldwide problem, the popularization of the common air conditioner is obviously unfavorable for energy source saving, and in recent years, especially in summer, the power failure phenomenon is serious in all places of China, especially in coasts, and the power pulling electricity limiting is quite common. In a word, on one hand, the traditional refrigeration technology uses freon as a refrigerant to seriously damage an ozone layer, on the other hand, the traditional refrigeration technology needs to consume a large amount of electric energy to drive the completion of refrigeration cycle, the burden of a power grid is increased, the switching-on electricity limitation is caused, and in addition, the traditional refrigeration technology discharges a large amount of heat to the outdoor to cause the urban heat island effect.
The waste heat resources in China are very rich, and a large amount of low-grade waste heat resources are not effectively utilized. With the development of civil cooking fuel, the application of coal gas, oil liquid gas and natural gas is increasingly wide, especially the large-scale restaurants, restaurants and kitchen are discharged outdoors by being absorbed by a range hood after a large amount of fuel is combusted, and huge energy waste is caused.
At present, various flue gas recovery devices exist in the market, and the devices can well utilize the waste heat of the flue gas in a kitchen to generate hot water for people to use. But uses the waste heat of flue gas to refrigerate, and needs an adsorption refrigeration technology. The adsorption refrigeration system has good performance at low driving heat source temperature, has the characteristics of no noise, energy conservation, environmental protection and the like, and provides powerful support for popularization of the adsorption air conditioner through development and perfection of the adsorption refrigeration technology. Current adsorption refrigeration is mature, but some inherent defects of the adsorption refrigeration technology limit the large-scale application of the adsorption refrigeration technology. The adsorption refrigeration belongs to heat transfer among solids, the heat exchange efficiency is lower, and in order to improve the refrigerating capacity, the heat exchange capacity can only be improved by increasing the area of the adsorption bed device, so that the volume of the adsorption refrigerator is often larger. The space design of the kitchen is relatively limited no matter the kitchen is a household kitchen or a restaurant kitchen, and an independent space is difficult to be reserved for adsorption refrigeration, so that the application of the adsorption refrigeration technology in the aspect of oil smoke waste heat recovery is greatly limited.
Therefore, it is necessary to design a novel kitchen oil smoke waste heat driven adsorption type refrigerating system based on oil smoke discharging equipment, namely a refrigerating method.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an adsorption refrigeration system and a refrigeration method based on a fume exhaust device, which are used for solving the problem that the application of the adsorption refrigeration system is limited due to space limitation in the prior art.
To achieve the above and other related objects, the present invention provides an adsorption type refrigeration system based on a fume exhaust device, comprising:
the desorption adsorption device is used for adsorbing and desorbing the refrigerant and comprises an adsorption bed device and a range hood cover, wherein the adsorption bed device comprises at least one adsorption bed, and the adsorption bed device is arranged in the range hood cover;
the heat release device is connected with the desorption adsorption device and is used for condensing the refrigerant desorbed by the desorption adsorption device;
and one end of the heat absorption refrigeration device is connected with the heat release device to receive the refrigerant output by the heat release device, and the other end of the heat absorption refrigeration device is connected with the desorption adsorption device to provide the refrigerant for the desorption adsorption device.
As a preferred scheme of the invention, the adsorption bed device comprises an adsorption bed which is annular and fixed on the inner side wall of the range hood, and the adsorption bed desorbs the refrigerant adsorbed by the adsorption bed under the action of the waste heat of the high-temperature oil smoke entering the range hood.
As a preferred scheme of the invention, the desorption adsorption device further comprises a first heat exchange device, wherein the first heat exchange device is arranged in the range hood and connected with the adsorption bed, and the high-temperature oil fume loses heat to be converted into oil drops under the action of the first heat exchange device and transfers the heat to the adsorption bed.
As a preferred scheme of the invention, the desorption adsorption device further comprises a blowing device and an oil storage device, wherein the blowing device is arranged in the fume hood and used for enabling high-temperature fume entering the fume hood to flow in a rotating mode, and the oil storage device is arranged on the inner side wall of the fume hood and used for receiving and storing oil drops converted by the high-temperature fume.
As a preferred embodiment of the present invention, the desorption adsorption device further comprises a smoke exhaust device, and the smoke exhaust device is disposed on a side wall of the hood, and is used for exhausting cooled smoke.
As a preferred embodiment of the present invention, the adsorbent bed apparatus includes a first adsorbent bed for desorbing a refrigerant and a second adsorbent bed for adsorbing the refrigerant.
As a preferable scheme of the invention, the heat release device comprises a condensation device and a liquid storage device, wherein the liquid storage device is communicated between the condensation device and the heat absorption and refrigeration device, and the liquid storage device is used for storing the refrigerant condensed by the condensation device.
As a preferable mode of the invention, the heat absorption refrigeration device comprises an evaporation device and an ice making device, wherein the evaporation device is used for receiving the refrigerant output by the heat release device, and the refrigerant in the evaporation device is absorbed by the adsorption bed device and takes away heat to refrigerate the ice making device.
As a preferred aspect of the present invention, the heat absorption and refrigeration device further includes a second heat exchange device, and the second heat exchange device is disposed at the periphery of the ice making device.
As a preferable mode of the invention, the ice making device is further provided with an input pipeline and an output pipeline, and the input pipeline and the output pipeline are communicated with the ice making device.
As a preferred embodiment of the present invention, a flow rate control device is provided between the desorption adsorption device and the heat release device and/or between the heat release device and the heat absorption refrigeration device and/or between the heat absorption refrigeration device and the desorption adsorption device.
As a preferable scheme of the invention, the working medium of the refrigerating system is a silica gel-water working medium pair.
The invention also provides an adsorption refrigeration method based on the fume exhaust equipment, which comprises the following steps:
1) Providing an adsorption refrigeration system based on a fume exhaust device according to any one of the above aspects;
2) Inputting high-temperature oil fume into the desorption adsorption device so as to desorb the refrigerant adsorbed by the adsorption bed device;
3) Controlling the desorbed refrigerant to be input into the heat release device to condense the refrigerant;
4) Controlling condensed refrigerant to be input into the heat absorption refrigeration device;
5) And controlling the adsorption bed device to adsorb the refrigerant in the heat absorption refrigeration device so as to complete the refrigeration process.
As a preferred embodiment of the present invention, in step 3), the conditions for controlling the desorption of the refrigerant to be inputted into the heat releasing means are as follows: the pressure in the desorption adsorption device is equal to the pressure in the heat release device; in step 5), the conditions for controlling the adsorption bed device to adsorb the refrigerant in the heat absorption refrigeration device are as follows: the pressure in the desorption adsorption device is equal to the pressure in the adsorption refrigeration device.
As a preferred embodiment of the present invention, the step 3) further includes the steps of: stopping the input of the high-temperature oil fume and cooling the adsorption bed device.
As a preferred embodiment of the present invention, the means for cooling the adsorbent bed apparatus includes: the range hood is idled to cool the adsorption bed device.
As described above, the adsorption refrigeration system and the refrigeration method based on the fume exhaust equipment of the invention have the following beneficial effects:
1) The adsorption bed device of the adsorption refrigeration system based on the fume exhaust equipment is combined with the fume exhaust hood, heat is accumulated by utilizing the characteristics of a large area of a fume collecting hood (fume exhaust hood) and the characteristic of being close to a heat source, the occupied space of the equipment is saved, and the heat attenuation in a fume exhaust pipeline is avoided;
2) The invention directly utilizes the exhaust fan to cool the adsorption bed device, does not need an additional cooling device, and has simpler structure;
3) In the adsorption type refrigerating system based on the fume exhaust equipment, the temperature matching property of the high-temperature fume of the kitchen and the adsorption type refrigerating equipment (such as an adsorption type air conditioner) is good;
4) The adsorption refrigerating system based on the fume exhaust equipment has the advantages of simple structure, convenient maintenance and suitability for the working environment of a kitchen.
Drawings
Fig. 1 is a schematic diagram showing the connection relationship between the components of the adsorption refrigeration system based on the fume exhaust device provided by the invention.
Fig. 2 is a schematic flow chart of a refrigeration principle of each component of the adsorption refrigeration system based on the fume exhaust device.
Fig. 3 is a schematic diagram of a connection structure and a working schematic diagram of each component of a desorption adsorption device of an adsorption refrigeration system based on a fume exhaust device.
Description of element reference numerals
1. Desorption adsorption device
11. Adsorption bed device
12. Hood cover of kitchen ventilator
13. First heat exchanger
14. Fume extractor
15. Blower device
16. Oil storage device
2. Exothermic device
21. Condensing device
22. Liquid storage device
3. Heat absorption refrigerating device
31. Evaporation device
32. Ice making device
321. Input pipeline
322. Output pipeline
33. Second heat exchanger
4. 5, 6 flow control device
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
Please refer to fig. 1 to 3. It should be noted that, the illustrations provided in the present embodiment are merely schematic illustrations of the basic concepts of the present invention, and only the components related to the present invention are shown in the illustrations, rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
As shown in fig. 1 to 3, the present invention provides an adsorption refrigeration system based on a fume exhaust device, the refrigeration system comprising:
the desorption adsorption device 1 is used for adsorbing and desorbing a refrigerant, the desorption adsorption device 1 comprises an adsorption bed device 11 and a range hood 12, the adsorption bed device 11 comprises at least one adsorption bed, and the adsorption bed device 11 is arranged in the range hood 12;
a heat release device 2, wherein the heat release device 2 is connected with the desorption adsorption device 1 and is used for condensing the refrigerant desorbed by the desorption adsorption device 1;
and one end of the heat absorption refrigeration device 3 is connected with the heat release device 2 to receive the refrigerant output by the heat release device 2, and the other end of the heat absorption refrigeration device 3 is connected with the desorption adsorption device 1 to provide the refrigerant for the desorption adsorption device 1.
In particular, the adsorption bed device 11 is formed by at least one adsorption bed comprising an adsorbent which can adsorb or desorb a refrigerant, and the adsorption bed can be used for both adsorbing and desorbing a refrigerant, or can be used for either adsorbing a refrigerant only or desorbing a refrigerant only, of course. The desorption is also called desorption, i.e. the reverse process of gas absorption or adsorption, i.e. the process of releasing the absorbed or adsorbed substances from the absorbent or adsorbent, the absorbent or adsorbent can be desorbed by pressurizing, decompressing or heating, for example, nitrogen oxides adsorbed by activated carbon or molecular sieve can be released by heating, and the activated carbon or molecular sieve can be regenerated.
Specifically, the hood 12 is a hood portion of any range hood, and the shape, position, etc. of the hood 12 are not specifically limited, as long as the hood has a relevant function known to those skilled in the art, and of course, during specific use, the hood 12 works normally in the range hood.
The invention relates to a low-grade heat driven refrigeration process, which can be applied to kitchens of families, factories, schools and hotels. The invention uses the adsorption refrigeration principle, uses kitchen waste heat to drive the refrigeration cycle process, and only consumes little electric quantity to drive the fan. The invention creatively blends the adsorption bed for adsorption refrigeration into the fume hood, on one hand, can fully utilize the high-quality waste heat in the kitchen, avoid the heat attenuation of fume in the fume exhaust pipeline, improve the heat exchange rate, on the other hand, greatly reduce the volume of the adsorption refrigeration device and save the installation space of equipment, thereby paving the road for the application of the adsorption refrigeration device in the kitchen.
The invention also needs to be explained, the operation mode of combining the adsorption bed and the range hood has good applicability, a great amount of waste heat is generated when the gas stove is used, the hot air mixed with the oil smoke is very suitable for driving adsorption refrigeration, and the adsorption air conditioner has simple structure operation, is convenient to maintain, and is very suitable for the working environment of a kitchen. Further, the adsorption type refrigerating adsorption bed is combined with the fume exhaust fan cover, so that the occupied space of equipment is saved, the thermal attenuation in a fume exhaust pipeline is avoided, in addition, the adsorption bed is directly cooled by the exhaust fan, an additional cooling device is not needed, and the structure is simpler.
By way of example, the adsorption bed device 11 comprises an adsorption bed which is annular and is fixed on the inner side wall of the hood 12, and which desorbs the refrigerant adsorbed by the adsorption bed under the action of the residual heat of the high-temperature fume entering the hood 12.
Specifically, in this embodiment, the adsorption bed device 11 is a single adsorption bed, preferably, the adsorption bed is disposed in a ring shape and is fixed on the inner side wall of the hood 12, so as to achieve a good adsorption and desorption effect, specifically, after a large amount of fume vapor mixed with high-temperature gas generated by burning fossil fuel on a kitchen range is sucked into the hood 12 by the range hood, heat is transferred to the adsorption bed, and then the adsorption bed heated to a certain degree desorbs the refrigerant adsorbed by the adsorption bed, so as to perform the next refrigeration process.
As an example, the desorption adsorption device 1 further comprises a first heat exchange device 13, wherein the first heat exchange device 13 is arranged in the fume hood 12 and is connected with the adsorption bed, and the high-temperature fume loses heat to be converted into oil drops under the action of the first heat exchange device 13 and transfers the heat to the adsorption bed.
Specifically, in this embodiment, a heat exchange device may be further disposed in the desorption adsorption device 1, where the heat exchange device may be a heat exchanger, specifically, the first heat exchange device 13 is disposed on a surface of the adsorption bed, preferably, fins of the first heat exchange device 13 are disposed closely to the surface of the adsorption bed, and further, after high-temperature oil fume enters the hood 12, the entrained oil vapor loses heat and is liquefied into oil droplets under the action of the first heat exchange device 13, and the oil droplets adhere to a rib row of the first heat exchange device 13, so that the oil droplets and gas transfer heat to the adsorption bed in this process.
As an example, the desorption adsorption device 1 further includes a blower device 15 and an oil storage device 16, wherein the blower device 15 is disposed in the hood 12 and is used for making the high-temperature oil fume entering the hood 12 flow rotationally, and the oil storage device 16 is disposed on the inner side wall of the hood 12 and is used for receiving and storing oil drops converted by the high-temperature oil fume.
Specifically, the blower 15 may be a fan, preferably a centrifugal fan, and the blower 15 is preferably disposed at an inlet where the high-temperature oil smoke enters the hood, specifically, after the high-temperature oil smoke enters the hood, the high-temperature oil smoke flows along a cover surface in a rotating manner under the action of the centrifugal fan, and dense vertical ribs (such as ribs of a heat exchange device) are distributed on the cover surface to ensure sufficient contact with the high-temperature oil smoke, so as to improve heat exchange efficiency, and meanwhile, the fan may be further used for cooling the adsorption bed device. In addition, the desorption adsorption device 1 is further provided with an oil storage device 16, and preferably, the oil storage device 16 is disposed on the inner side wall of the hood 12 near the lower end portion of the first heat exchange device 13, that is, below the hood, so that oil drops attached to the fins of the first heat exchange device 13 can just flow into the oil storage device 16. In particular, the oil reservoir 16 may be an oil reservoir.
As an example, the desorption adsorption device 1 further comprises a smoke exhaust device 14, and the smoke exhaust device 14 is arranged on the side wall of the fume hood 12 and is used for exhausting cooled fume.
Specifically, in this embodiment, the smoke exhaust device 14 includes a smoke exhaust pipe and an exhaust fan, and is configured to exhaust the part of the smoke exhaust gas into the smoke exhaust pipe to the outside under the action of the exhaust fan after the heat of the high-temperature smoke is lost. At the same time, the exhaust fan can be further used for cooling the adsorption bed device.
As an example, the adsorption bed device 11 includes a first adsorption bed for desorbing the refrigerant and a second adsorption bed for adsorbing the refrigerant.
In particular, the adsorption bed device 11 may further include two or more adsorption/desorption devices for the refrigerant, respectively, so that the cycle frequency may be further increased. For example, the adsorption bed comprises two adsorption beds which are independently arranged on the inner side wall of the fume hood 12, and the adsorption and desorption of the refrigerant are respectively controlled.
As an example, the heat release device 2 includes a condensation device 21 and a liquid storage device 22, where the liquid storage device 22 is disposed between the condensation device 21 and the heat absorption and refrigeration device 3 in a communicating manner, and the liquid storage device 22 is used for storing the refrigerant condensed by the condensation device 21.
Specifically, the refrigerant desorbed by the desorption adsorption device 1 is condensed and stored in the liquid storage device 22 after passing through the prevention device 2, and the condensing device 21 may be a condenser, but is not limited thereto.
As an example, the heat absorption refrigeration device 3 includes an evaporation device 31 and an ice making device 32, wherein the evaporation device 31 is configured to receive the refrigerant output from the heat release device 2, and the refrigerant in the evaporation device 31 is absorbed by the adsorption bed device 11 and takes heat away to cool the ice making device 32.
Specifically, under certain conditions, the liquid refrigerant in the heat release device 2 enters the evaporation device 31, the evaporation device 31 is in contact with the ice making device 32, and at the same time, the adsorption bed device 11 of the desorption adsorption device 1 adsorbs the refrigerant in the evaporation device 31, so as to take away the surrounding heat, and the ice in the ice making device 32 is frozen, thereby completing the refrigeration process. Preferably, the ice-making device 32 is disposed inside the accommodating chamber of the evaporation device 31 for accommodating the refrigerant, so as to ensure that the entire periphery of the ice-making device 32 is disposed in the refrigerant inputted into the evaporation device 31, thereby achieving a good refrigerating effect.
As an example, the heat absorption and refrigeration device 3 further includes a second heat exchange device 33, and the second heat exchange device 33 is disposed at the periphery of the ice making device 32.
As an example, the ice making device 32 is further provided with an input pipeline 321 and an output pipeline 322, and the input pipeline 321 and the output pipeline 322 are both in communication with the ice making device 32.
Specifically, the heat absorption and refrigeration device 3 is further provided with a second heat exchange device 33, and the second heat exchange device 33 may be a heat exchanger, preferably, the heat exchanger is circumferentially disposed on the periphery of the ice making device 32, so as to perform heat exchange better, thereby achieving a better ice making effect. In addition, the ice making device 32 is further provided with an input/output pipeline, and in this embodiment, the pipeline is used for water supplementing and draining.
As an example, flow control means 4 and/or 5 and/or 6 are provided between the desorption adsorption means 1 and the heat release means 2 and/or between the heat release means 2 and the heat absorption refrigeration means 3 and/or between the heat absorption refrigeration means 3 and the desorption adsorption means 1.
Specifically, the flow control device 4 may be a stop valve, the flow control device 5 may be a throttle valve, and the flow control device 6 may be a stop valve, and the flow control device 4 may be disposed between the desorption adsorption device 1 and the heat release device 2, the heat release device 2 and the heat absorption refrigeration device 3, and the flow control device 6 may be a stop valve. In this embodiment, the flow control device 4 is used to control the refrigerant to enter the heat release device 2, the flow control device 5 is used to control the refrigerant to flow into the evaporation device 31, and the flow control device 6 is used to control the refrigerant to be absorbed by the adsorption bed device 11 from the evaporation device 31. In addition, the desorption adsorption device 1, the heat release device 2 and the heat absorption refrigeration device 3 are preferably connected with each other through pipelines.
As an example, the working medium of the refrigeration system is a silica gel-water working pair for refrigeration and ice storage.
In particular, the adsorption refrigeration system based on the fume exhaust equipment can use any adsorption refrigeration working substance pair, preferably, in the embodiment, the working substance pair is silica gel-water, particularly, the temperature matching property of the kitchen fume and the adsorption air conditioner is good, the initial temperature just generated is about 60-100 ℃, and the heat source temperature required by the adsorption air conditioner taking the silica gel-water as the working substance pair is 40-80 ℃, so that the temperature matching property is good between the two.
The invention also provides an adsorption refrigeration method based on the fume exhaust equipment, wherein the refrigeration method is a refrigeration method adopting the refrigeration system of any scheme, and the refrigeration method comprises the following steps:
1) Providing an adsorption refrigeration system based on a fume exhaust device according to any one of the above schemes;
2) Feeding high-temperature oil fume into the desorption adsorption device 1 so as to desorb the refrigerant adsorbed by the adsorption bed device 11;
3) The refrigerant of control desorption is input into the heat release device 2 to condense the refrigerant;
4) Controlling condensed refrigerant to be input into the heat absorption refrigeration device 3;
5) The adsorption bed device 11 is controlled to adsorb the refrigerant in the heat absorption refrigeration device 3 so as to complete the refrigeration process.
As an example, in step 3), the conditions for controlling the input of the desorbed refrigerant into the heat release device 2 are: the pressure in the desorption adsorption device 1 is equal to the pressure in the heat release device 2; in step 5), the conditions for controlling the adsorption bed device 11 to adsorb the refrigerant in the heat absorption refrigeration device 3 are as follows: the pressure in the desorption adsorption device 1 is equal to the pressure in the adsorption refrigeration device 3.
As an example, step 3) further comprises the steps of: the input of high temperature oil fume is stopped and the adsorption bed device 11 is cooled.
By way of example, the means for cooling the adsorbent bed apparatus 11 include: the range hood is idled to cool the adsorption bed apparatus 11.
Specifically, as a method for refrigerating by adopting the adsorption refrigerating system based on the fume exhaust equipment, firstly, after fume steam mixed with a large amount of high-temperature gas generated by burning fossil fuel on a kitchen hearth is sucked by a fume exhauster, the mixed high-temperature fume loses heat to be liquefied into oil drops under the action of the first heat exchange device 13 and adheres to a rib exhaust of the first heat exchange device 13 along with the rotation of a fan in the fume exhauster cover 12, in the process, the oil drops and the gas transfer heat to the adsorption bed device 11, and after the fume is stopped briefly, the cooled fume gas enters the fume exhaust device to be exhausted outside. When the adsorption bed device is heated to a certain degree (if the pressure in the desorption adsorption device is equal to the pressure in the heat release device), the refrigerant is desorbed, flows to the condensing device 21 through the stop valve, flows into the liquid storage device after being condensed by the condensing device, when the liquid storage device is stored to a certain amount, the throttle valve is opened, the refrigerant flows into the evaporator, and at the moment, the cooking bench stops working to enable the range hood to idle and cool the adsorption bed (if the pressure in the heat absorption refrigeration device is equal to the pressure in the desorption adsorption device), the stop valve is opened, the refrigerant in the evaporation device is adsorbed by the adsorption bed device and takes away heat, water in the ice making device 32 is refrigerated and frozen, and the refrigeration process is completed.
In summary, the present invention provides an adsorption refrigeration system and a refrigeration method based on a fume exhaust device, the refrigeration system includes: the desorption adsorption device is used for adsorbing and desorbing the refrigerant and comprises an adsorption bed device and a lampblack absorber cover, wherein the adsorption bed device comprises at least one adsorption bed, the adsorption bed device is arranged in the lampblack absorber cover, and the desorption adsorption device is arranged on the adsorption bed device; the heat release device is connected with the desorption adsorption device and is used for condensing the refrigerant desorbed by the desorption adsorption device; and one end of the heat absorption refrigeration device is connected with the heat release device to receive the refrigerant output by the heat release device, and the other end of the heat absorption refrigeration device is connected with the desorption adsorption device to provide the refrigerant for the desorption adsorption device. Based on the scheme of the invention, the adsorption bed device of the adsorption refrigeration system based on the fume exhaust equipment is combined with the fume exhaust hood, heat is accumulated by utilizing the characteristics of large area and close to a heat source of the fume exhaust hood (fume exhaust hood), the occupied space of the equipment is saved, and the heat attenuation in a fume exhaust pipeline is avoided; the invention directly utilizes the exhaust fan to cool the adsorption bed device, does not need an additional cooling device, and has simpler structure; in the adsorption type refrigerating system based on the fume exhaust equipment, the temperature matching property of the high-temperature fume of the kitchen and the adsorption type refrigerating equipment (such as an adsorption type air conditioner) is good; the adsorption refrigerating system based on the fume exhaust equipment has the advantages of simple structure, convenient maintenance and suitability for the working environment of a kitchen. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (14)
1. An adsorption refrigeration system based on a fume extraction device, said refrigeration system comprising:
the desorption adsorption device is used for adsorbing and desorbing the refrigerant and comprises an adsorption bed device and a range hood cover, wherein the adsorption bed device comprises at least one adsorption bed, and the adsorption bed device is arranged in the range hood cover;
the heat release device is connected with the desorption adsorption device and is used for condensing the refrigerant desorbed by the desorption adsorption device;
one end of the heat absorption refrigeration device is connected with the heat release device to receive the refrigerant output by the heat release device, and the other end of the heat absorption refrigeration device is connected with the desorption adsorption device to provide the refrigerant for the desorption adsorption device;
the desorption adsorption device further comprises a first heat exchange device, a blowing device and an oil storage device, wherein the first heat exchange device is arranged in the fume hood and is connected with the adsorption bed, high-temperature fume loses heat to be converted into oil drops under the action of the first heat exchange device and transfers the heat to the adsorption bed, the blowing device is arranged at the inlet of the fume hood and dense vertical ribs are distributed on the cover surface of the fume hood and are used for enabling the high-temperature fume entering the fume hood to flow in a rotating mode, and the oil storage device is arranged at the position, close to the lower end portion of the first heat exchange device, of the inner side wall of the fume hood, so that the oil drops attached to the ribs of the first heat exchange device can just flow into the oil storage device.
2. The adsorption refrigeration system of claim 1 wherein said adsorbent bed means comprises an adsorbent bed which is annular and is secured to the inner side wall of said hood and which desorbs the refrigerant adsorbed by said adsorbent bed under the influence of the waste heat of the high temperature oil smoke entering said hood.
3. The adsorption refrigeration system based on fume extraction equipment according to claim 1 or 2, wherein the desorption adsorption means further comprises fume extraction means provided on a side wall of the fume hood for exhausting cooled fume.
4. The smoke evacuation device-based adsorption refrigeration system of claim 1 wherein said adsorbent bed means comprises a first adsorbent bed for refrigerant desorption and a second adsorbent bed for refrigerant adsorption.
5. The adsorption refrigeration system based on a fume exhaust device according to claim 1, wherein the heat releasing device comprises a condensing device and a liquid storage device, wherein the liquid storage device is communicated between the condensing device and the heat absorbing refrigeration device, and the liquid storage device is used for storing the refrigerant condensed by the condensing device.
6. The adsorption refrigeration system of claim 1 wherein the heat absorbing refrigeration means comprises an evaporator means and an ice making means, wherein the evaporator means is configured to receive the output refrigerant from the heat releasing means and wherein the refrigerant in the evaporator means is absorbed by the adsorbent bed means and removes heat to cool the ice making means.
7. The smoke exhaust equipment based adsorption refrigeration system of claim 6 wherein said heat absorbing refrigeration means further comprises a second heat exchange means, said second heat exchange means being disposed at the periphery of said ice making means.
8. The adsorption refrigeration system based on a fume exhaust device according to claim 6 or 7, wherein an input pipeline and an output pipeline are further arranged on the ice making device, and the input pipeline and the output pipeline are communicated with the ice making device.
9. The adsorption refrigeration system based on fume exhaust equipment according to claim 1, wherein a flow control device is arranged between the desorption adsorption device and the heat release device and/or between the heat release device and the heat absorption refrigeration device and/or between the heat absorption refrigeration device and the desorption adsorption device.
10. The adsorption refrigeration system based on a fume extractor of claim 1, wherein the working medium of the refrigeration system is a silica gel-water working pair.
11. An adsorption refrigeration method based on a fume exhaust device is characterized by comprising the following steps:
1) Providing an adsorption refrigeration system based on a fume exhaust device according to any one of claims 1-10;
2) Inputting high-temperature oil fume into the desorption adsorption device so as to desorb the refrigerant adsorbed by the adsorption bed device;
3) Controlling the desorbed refrigerant to be input into the heat release device to condense the refrigerant;
4) Controlling condensed refrigerant to be input into the heat absorption refrigeration device;
5) And controlling the adsorption bed device to adsorb the refrigerant in the heat absorption refrigeration device so as to complete the refrigeration process.
12. The adsorption refrigeration process of claim 11 wherein in step 3) the conditions for controlling the desorbed refrigerant input into the heat release device are: the pressure in the desorption adsorption device is equal to the pressure in the heat release device; in step 5), the conditions for controlling the adsorption bed device to adsorb the refrigerant in the heat absorption refrigeration device are as follows: the pressure in the desorption adsorption device is equal to the pressure in the heat absorption refrigeration device.
13. The adsorption refrigeration process of claim 11 wherein step 3) is followed by the further step of: stopping the input of the high-temperature oil fume and cooling the adsorption bed device.
14. The smoke exhaust apparatus based adsorption refrigeration method of claim 13 wherein the means for cooling the adsorbent bed means comprises: the range hood is idled to cool the adsorption bed device.
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