CN110068204B - Energy-efficient crops drying-machine that can retrieve heat energy - Google Patents
Energy-efficient crops drying-machine that can retrieve heat energy Download PDFInfo
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- CN110068204B CN110068204B CN201910449293.4A CN201910449293A CN110068204B CN 110068204 B CN110068204 B CN 110068204B CN 201910449293 A CN201910449293 A CN 201910449293A CN 110068204 B CN110068204 B CN 110068204B
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- 238000005192 partition Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000001704 evaporation Methods 0.000 claims abstract description 8
- 230000008020 evaporation Effects 0.000 claims abstract description 7
- 239000003507 refrigerant Substances 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims description 31
- 238000003860 storage Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 12
- 238000012546 transfer Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000001816 cooling Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 240000008042 Zea mays Species 0.000 description 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 4
- 235000005822 corn Nutrition 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/08—Drying; Subsequent reconstitution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
-
- 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
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides a high-efficiency energy-saving crop dryer capable of recovering heat energy, which relates to the technical field of agricultural machinery and comprises a heat exchanger body, an evaporation mechanism and a condenser, wherein the heat exchanger body is of a columnar hollow sealing shell structure, the heat exchanger body is divided into a cold air channel and a hot air channel which are alternately arranged at intervals by a plurality of partition plates which are mutually arranged in parallel, the top and the bottom of the heat exchanger body are respectively provided with a first air inlet and a first air outlet relative to the positions of the hot air channels, the lower part of the side wall of the heat exchanger body is provided with a second air inlet, and the upper part of the side wall of the heat exchanger body is provided with a second air outlet; the evaporating mechanism comprises an evaporator and a compressor, and the compressor transfers heat of the evaporator to the condenser through a refrigerant. Through the structural design of heat exchanger body, can preheat and pre-cool down the processing through the heat exchange, reach the effect of energy saving, the in-process can not produce harmful gas and pollute the environment.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a high-efficiency energy-saving crop dryer capable of recycling heat energy.
Background
At present, in the process of crop processing and production, taking corn as an example, in the process of corn seed threshing and processing and production, the moisture of seed coating agent attached to the surface of coated seeds is mostly dried in a natural airing mode or in a mode that seeds enter a large-volume grain storage bin for a period of time and then wait for drying. However, if the storage environment of the grain storage bin has the conditions of high moisture and high temperature, corn is easy to mould in the silo, the quality of the corn is affected, meanwhile, the labor and time are wasted in manual airing, the seeds are also affected by environmental factors, and the two modes are adopted to dry the seeds, so that the time is long, and the efficiency is low.
At present, mechanized drying equipment is applied more and more widely, but most of heat supply raw materials adopted by the existing dryer are diesel oil, coal and the like, so that environmental pollution can be caused in the drying process, the drying cost is very high, and the national energy-saving and environment-friendly requirements and the agricultural technology industry upgrading requirements can not be met.
Disclosure of Invention
The invention aims to provide a high-efficiency energy-saving crop dryer capable of recycling heat energy, so as to solve the technical problems that the existing mechanized drying equipment in the prior art can cause environmental pollution in the drying process and the drying cost is high; the preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a high-efficiency energy-saving crop dryer capable of recovering heat energy, which is used for drying crops in a drying bin and comprises a heat exchanger body, an evaporation mechanism and a condenser, wherein the heat exchanger body is of a columnar hollow sealing shell structure, the heat exchanger body divides an inner hollow part of the heat exchanger body into cold air channels and hot air channels which are alternately arranged at intervals through a plurality of partition plates which are mutually parallel, the cold air channels and the hot air channels are of sealing structures and are not communicated with each other, a first air inlet and a first air outlet are respectively arranged at the top and the bottom of the heat exchanger body relative to the positions of the hot air channels, the first air inlet is connected with a hot air outlet of the drying bin, a second air inlet is arranged at the lower part of the side wall of the heat exchanger body relative to the position of the cold air channels, and a second air outlet is arranged at the upper part of the side wall of the heat exchanger body relative to the position of the cold air channels; the evaporation mechanism comprises an evaporator and a compressor, the air inlet end of the evaporator 7 is connected with the first air outlet, the air outlet end of the evaporator is connected with the second air inlet, the air inlet end of the condenser is connected with the second air outlet, the air outlet end of the condenser is connected with the hot air inlet of the drying bin, and the compressor is used for transmitting heat of the evaporator to the condenser through compression of a refrigerant.
Description of working principle by combining the using process of the dryer:
hot moisture output from the drying bin enters the hot gas channel from a first air inlet at the top of the heat exchanger body, and is discharged downwards from a first air outlet of the hot gas channel to enter the evaporator, the hot moisture is dehydrated into dry and cold air through the gas of the evaporator, enters a second air inlet of the cold gas channel from the air outlet end of the evaporator and goes upwards along the cold gas channel, and then is discharged from a second air outlet of the cold gas channel to enter the condenser, and the condenser outputs dry and hot air; the main function of the heat exchanger is to condense water vapor in the gas, the temperature of the hot and humid gas from the drying bin gradually decreases along with the approach of the first air inlet to the first air outlet, and the hot and humid gas condenses along with the decrease of the temperature; the temperature of the radiating fins of the evaporator is low, so that the temperature of hot gas can be reduced to zero; then the temperature of the dry and cold air gradually rises in the cold air channel along with the approach of the second air inlet to the second air outlet; the temperature of the cooling fin of the condenser is 60-80 degrees, and the preheating cool air from the second air outlet is heated to more than 60 degrees and sent back to the drying bin, so that heat recovery is realized.
It is noted that the evaporator is used for cooling and dehumidifying air, the condenser is used for heating air, and in the process of descending hot moisture in the hot gas channel, as the two sides of the partition plate forming the hot gas channel are both provided with the cold gas channel with ascending dry and cold air, in the process, the hot moisture and the dry and cold air can exchange heat, so that the temperature of the hot moisture is reduced by heat exchange before entering the evaporator, and the temperature of the dry and cold air is also increased by heat exchange before entering the condenser, while the air pipeline of the traditional dryer is generally provided with a single hot gas pipeline and a single cold gas pipeline, and compared with the traditional single air pipeline, the preheating and pre-cooling treatment can be performed by the structural design of the heat exchanger body, so that the energy saving effect is achieved;
meanwhile, the traditional mechanical drying equipment generally adopts diesel oil, natural gas or coal and the like as heat supply raw materials, the product adopts an evaporator, a condenser and a compressor as a heating mechanism, the compressor can transfer heat generated in the working process of the evaporator and heat generated in the hot and humid gas dehydration process to the condenser through a refrigerant (heat transfer working medium), the consumption cost is lower under the condition of manufacturing the same heat, and harmful gas cannot be generated in the process to pollute the environment; and traditional burning heating mode can not get rid of the moisture in the hot moisture well, and this drying-machine carries out dehydration through the evaporimeter with the hot moisture earlier, and the air that follows into in the condenser is dry air from this for the stoving effect of equipment to crops is better.
Meanwhile, the partition plate can be fixed in the heat exchanger body in a welding mode, and can also be installed and fixed in the heat exchanger body in a detachable connection mode, such as a buckling connection mode, a bolt connection mode and the like.
Optionally, the plate body of the partition plate protrudes toward the cold air channel to form a plurality of vortex grooves. The vortex groove forms the arch in the air conditioning passageway to form the recess in hot gas passageway, when the dry and cold air that goes upward in the air conditioning passageway passed through the vortex groove, the air current can strike vortex groove surface, and the vortex groove has increased the area of contact with dry and cold air moreover, thereby for planar division board, the dry and cold air is better to the cooling effect of vortex groove, heat transfer efficiency can improve, simultaneously downgoing hot and humid air can have a part to stay in the recess that the vortex groove formed at the hot gas passageway in the hot gas passageway, make the vortex groove can cool down the hot and humid air better.
It is worth noting that the shape of the vortex groove can be in various forms such as a sphere, a cuboid and the like, the preferable shape is a sphere, and the resistance of the spherical vortex groove to dry and cold air is small, so that the gas flow is convenient.
Optionally, the vortex groove includes supporting the vortex groove and is less than supporting the auxiliary vortex groove of vortex groove in volume, the position corresponds and the cell body top of two supporting the vortex groove that the position corresponds link to each other through the welded mode between the supporting vortex groove that sets up on two adjacent division boards that constitute the air conditioning passageway. Adjacent division plates can be connected and fixed together through a welded connection mode between the support vortex grooves, so that when the division plates are installed in the heat exchanger body, steps can be saved, the installation flow is simplified, and the support vortex grooves mainly play a role in connecting and supporting the two division plates.
Optionally, the partition plate is provided with a plurality of liquid diversion trenches in the vertical direction. After the hot and humid air exchanges heat with the dry and cold air, the water vapor can be liquefied into water to be attached to the surfaces of the partition plates forming the hot air channels, and the liquid diversion trenches can divert the water on the surfaces of the partition plates to the bottom of the heat exchanger body.
Optionally, the bottom of the heat exchanger body is also provided with a gas storage supporting bin which is of a hollow sealing shell structure, the gas storage supporting bin is connected with the bottom of the heat exchanger body in a sealing way through an opening formed in the top end of the gas storage supporting bin, a first exhaust port of the air channel is covered in the opening, and the side part of the gas storage supporting bin is connected with the evaporator through a gas guide port. One effect of gas storage support storehouse is for supporting the heat exchanger body, makes its bottom keep apart with ground, makes things convenient for the intercommunication of evaporimeter and first gas vent like this, and on the other hand can gather in the gas storage support storehouse after the rivers of condensation in the steam passageway down, avoids the comdenstion water to carry out the inlet end of evaporimeter, and as preferred, can set up the outlet in the bottom of gas storage support storehouse.
Optionally, the exhaust end of the evaporator and the second air inlet and the second air outlet and the condenser are connected through sealing pipelines.
Optionally, the second air inlet and the second air outlet are provided on opposite sides of the heat exchanger body. The dry and cold air enters the cold air channel through the second air inlet and then is discharged from the second air outlet, and if the second air inlet and the second air outlet are arranged on the same side face of the heat exchanger body, the area through which the dry and cold air flows in the cold air channel is smaller, so that heat exchange with hot and humid air is reduced; and after being arranged on two opposite sides, the area through which the dry and cold air flows in the cold air channel is larger, and the heat exchange efficiency can be further improved.
Optionally, the top of heat exchanger body is equipped with the buckle, and the bottom of heat exchanger body is equipped with the pothook with the sealed joint of buckle cooperation, a plurality of heat exchanger bodies stack from top to bottom and pass through buckle and pothook sealed fixation and constitute the heat exchanger assembly, the second gas vent that the heat exchanger assembly is located on the heat exchanger body of lower floor passes through the pipeline and communicates with the second air inlet of the heat exchanger body that is located its upper strata.
The heat exchanger assembly is formed by combining a plurality of detachable heat exchanger bodies, hot gas channels between adjacent heat exchanger bodies are communicated with each other, different heat exchanger bodies are almost identical in overall specification, only small differences between the buckles and the hooks exist, the heat exchanger bodies can be connected into a whole by utilizing the buckles and the hooks arranged on the heat exchanger bodies, and the size and the heat exchange capacity of the heat exchanger assembly can be directly changed by changing the number of the heat exchanger bodies, so that the dehumidifying capacity of the dryer is changed; it should be noted that, the side wall of the heat exchanger body provided with the second air inlet and the second air outlet may be provided with a fastener and a hook, and when the heat exchanger assembly is assembled, the cold air channels between the adjacent heat exchanger bodies are mutually communicated, and the heat exchanger bodies are integrally connected by the fastener and the hook arranged on the side wall of the heat exchanger body.
In order to make the connection tightness between the heat exchanger bodies better, rubber rings can be arranged at the edge positions of the first air inlet, the second air inlet, the first air outlet and the second air outlet so as to improve the tightness after connection.
Optionally, a support frame is provided around the heat exchanger body for supporting the heat exchanger body. The top and the heat exchanger body fixed connection of support frame, connected mode can be bolted connection, and the bottom sprag ground of support frame mainly used improves the fuselage stability of heat exchanger body when using.
Optionally, an air supply pipeline connected with a hot air inlet of the drying bin is arranged at the exhaust end of the condenser, and a high-pressure fan is arranged in the air supply pipeline. The high-pressure fan in the air supply pipeline sends the dehumidified and heated dry hot air into the drying bin to dry crops; the high-pressure fan is used for improving the flow rate of air, so that the drying effect is better.
The invention provides a high-efficiency energy-saving crop dryer capable of recovering heat energy, which has the beneficial effects that:
this drying-machine passes through the structural design of heat exchanger body, can preheat and pre-cool down the processing, and its temperature just has reduced through the heat exchange before hot and humid air gets into the evaporimeter, and its temperature has also risen through the heat exchange before getting into the condenser for the dry and cold air, reaches the effect of energy saving, and the cost of consumption is lower simultaneously, and the in-process can not produce harmful gas pollution environment moreover, and dehumidification is effectual.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic left-hand view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is another perspective view of the present invention;
FIG. 4 is a schematic view of the structure of the present invention with the blower duct and motor removed from FIG. 3;
FIG. 5 is a schematic view of the structure of the present invention with the support frame and condenser removed from the structure of FIG. 4;
FIG. 6 is a schematic view of the structure of the heat exchanger body of the present invention after the evaporator and the compressor are connected;
FIG. 7 is a schematic view of the structure of the heat exchanger body of the present invention;
FIG. 8 is a schematic view of the cold air path and the hot air path formed by the area A dividing plate of FIG. 7 according to the present invention;
FIG. 9 is a schematic view of the structure of the partition plate of the present invention;
FIG. 10 is a schematic view of the structure of the two partition plates of the present invention after the corresponding arrangement of the supporting vortex grooves;
FIG. 11 is a schematic view of the heat exchanger body of the present invention connected by a clip and a hook;
FIG. 12 is a schematic view of the structure of the buckle and the hook provided on the heat exchanger body of the present invention;
fig. 13 is a schematic diagram of the working principle of the present invention.
In the figure, the heat exchanger comprises a 1-heat exchanger body, a 2-condenser, a 3-partition plate, a 4-cold air channel, a 5-hot air channel, a 6-first air inlet, a 7-first air outlet, a 8-second air inlet, a 9-second air outlet, a 10-evaporator, a 11-compressor, a 12-vortex groove, a 121-supporting vortex groove, a 122-auxiliary vortex groove, a 13-liquid guide groove, a 14-gas storage supporting bin, a 15-sealing pipeline, a 16-buckle, a 17-clamping hook, a 18-supporting frame, a 19-air supply pipeline and a 20-high-pressure fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
As an alternative to the implementation of the method,
example 1:
as shown in fig. 1-11, a high-efficiency energy-saving crop dryer capable of recovering heat energy comprises a heat exchanger body 1, an evaporation mechanism and a condenser 2, wherein the heat exchanger body 1 is of a columnar hollow sealing shell structure, the hollow part inside the heat exchanger body 1 is divided into a cold air channel 4 and a hot air channel 5 which are alternately arranged at intervals by a plurality of partition plates 3 which are mutually parallel, the cold air channel 4 and the hot air channel 5 are of sealing structures and are not communicated with each other, a first air inlet 6 and a first air outlet 7 are respectively arranged at the top and the bottom of the heat exchanger body 1 relative to the position of the hot air channel 5, the first air inlet 6 is connected with a hot air outlet of a drying bin, a second air inlet 8 is arranged at the lower part of the side wall of the heat exchanger body 1 relative to the position of the cold air channel 4, and a second air outlet 9 is arranged at the upper part of the side wall of the heat exchanger body 1 relative to the position of the cold air channel 4; the evaporation mechanism comprises an evaporator 10 and a compressor 11, wherein the air inlet end of the evaporator 10 is connected with the first air outlet 7, the air outlet end of the evaporator 10 is connected with the second air inlet 8, the air inlet end of the condenser 2 is connected with the second air outlet 9, the air outlet end of the condenser 2 is connected with the hot air inlet of the drying bin, and the compressor 11 transfers heat of the evaporator 10 to the condenser 2 through compression of a refrigerant.
Description of working principle by combining the using process of the dryer:
hot and humid air output from the drying bin enters the hot air channel 5 from the first air inlet 6 positioned at the top of the heat exchanger body 1, and is discharged downwards from the first air outlet 7 of the hot air channel 5 into the evaporator 10, the hot and humid air is dehydrated into dry and cold air through the gas of the evaporator 10, enters the second air inlet 8 of the cold air channel 4 from the air outlet end of the evaporator 10 and ascends along the cold air channel 4, and then is discharged into the condenser 2 from the second air outlet 9 of the cold air channel 4, and the condenser 2 outputs dry and hot air;
it is noted that the evaporator 10 is used for cooling and dehumidifying air, the condenser 2 is used for heating air, and in the process of descending the hot moisture in the hot air channel 5, as the two sides of the partition plate 3 forming the hot air channel 5 are both provided with the cold air channel 4 for ascending dry and cold air, in the process, the hot moisture and the dry and cold air can exchange heat, so that the temperature of the hot moisture is reduced by heat exchange before entering the evaporator 10, and the temperature of the dry and cold air is increased by heat exchange before entering the condenser 2, while the air pipeline of the traditional dryer is generally used as a single hot air pipeline and a cold air pipeline, and basically no heat exchange process exists between the two pipelines, compared with the traditional arrangement of a single air pipeline, the preheating and pre-cooling treatment can be performed through the structural design of the heat exchanger body 1, so that the energy saving effect is achieved; meanwhile, the traditional mechanical drying equipment generally adopts diesel oil, natural gas or coal and the like as heating raw materials, the product adopts the evaporator 10, the condenser 2 and the compressor 11 as heating mechanisms, the compressor 11 can transfer heat generated in the working process of the evaporator 10 and heat generated in the hot and humid dewatering process to the condenser 2 through refrigerants or heat transfer working media, the consumption cost is lower under the condition of manufacturing the same heat, and harmful gas cannot be generated in the process to pollute the environment; in addition, the traditional combustion heating mode can not well remove the moisture in the hot moisture, and the dryer firstly dehydrates the hot moisture through the evaporator 10, so that the air which enters the condenser 2 later is dry air, and the drying effect of the equipment on crops is better; meanwhile, the partition plate 3 may be fixed in the heat exchanger body 1 by welding, or may be detachably connected, such as by fastening 16, bolting, etc., and installed and fixed in the heat exchanger body 1.
Example 2:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1 to 10, the plate body of the partition plate 3 is protruded toward the cold air passage 4 to form a plurality of swirl grooves 12. The swirl groove 12 forms the arch in cold air passageway 4 to form the recess in hot gas passageway 5, when the dry and cold air that goes upward in cold air passageway 4 when through swirl groove 12, the air current can strike swirl groove 12 surface, and swirl groove 12 has increased the area of contact with dry and cold air, thereby for planar division board 3, the cooling effect of dry and cold air to swirl groove 12 is better, heat transfer efficiency can improve, simultaneously in hot gas passageway 5 downgoing hot moisture can some stay in the recess that swirl groove 12 formed in hot gas passageway 5, make swirl groove 12 can cool down the hot moisture better.
It should be noted that the shape of the vortex groove 12 may be various types such as a sphere, a cuboid, etc., and the preferred shape is a sphere, and the resistance of the sphere-shaped vortex groove 12 to the dry and cold air is small, so that the gas flow is facilitated.
Example 3:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1-10, the vortex groove 12 comprises a supporting vortex groove 121 and an auxiliary vortex groove 122 with a volume smaller than that of the supporting vortex groove 121, and the top ends of the groove bodies of the two supporting vortex grooves 121 which are arranged on the adjacent two partition plates 3 forming the cold air channel 4 and correspond to each other in position are connected in a welding mode. Adjacent partition plates 3 can be connected and fixed together by a welded connection mode between the supporting vortex grooves 121, so that steps can be saved and the installation flow is simplified when the partition plates 3 are installed in the heat exchanger body 1.
Example 4:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1 to 10, the partition plate 3 is provided with a plurality of liquid guide grooves 13 in the vertical direction. After the hot and humid air exchanges heat with the dry and cold air, the water vapor can be liquefied into water and attached to the surface of the partition plate 3 forming the hot air channel 5, and the liquid diversion trenches 13 can divert the water on the surface of the partition plate 3 to the bottom of the heat exchanger body 1.
Example 5:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1-10, the bottom of the heat exchanger body 1 is further provided with a gas storage supporting bin 14 with a hollow sealing shell structure, the gas storage supporting bin 14 is connected with the bottom of the heat exchanger body 1 in a sealing way through an opening arranged at the top end, the first exhaust port 7 of the air channel is covered in the opening, and the side part of the gas storage supporting bin 14 is connected with the evaporator 10 through a gas guide port arranged. One function of the gas storage support bin 14 is to support the heat exchanger body 1 so that the bottom of the heat exchanger body is isolated from the ground, so that the evaporator 10 is conveniently communicated with the first exhaust port 7, on the other hand, condensed water in the hot gas channel 5 can be collected into the gas storage support bin 14 after flowing down, the condensed water is prevented from entering the air inlet end of the evaporator 10, and a water outlet can be arranged at the bottom of the gas storage support bin 14 as a preferable mode.
Example 6:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1 to 10, the exhaust end of the evaporator 10 and the second air inlet 8 and the second air outlet 9 and the condenser 2 are connected by a sealing pipe 15.
Example 7:
on the basis of the above embodiment, as shown in fig. 1 to 10, as a further preferable scheme: the second air inlet 8 and the second air outlet 9 are provided on opposite sides of the heat exchanger body 1. Dry and cold air enters the cold air channel 4 through the second air inlet 8 and then is discharged from the second air outlet 9, and if the second air inlet 8 and the second air outlet 9 are arranged on the same side of the heat exchanger body 1, the area through which the dry and cold air flows in the cold air channel 4 is smaller, so that heat exchange with hot and humid air is reduced; and after being disposed on opposite sides, the area through which the dry and cold air flows in the cold air duct 4 is larger, and the efficiency of heat exchange can be further improved.
Example 8:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1-12, the top of the heat exchanger body 1 is provided with a buckle 16, the bottom of the heat exchanger body 1 is provided with a clamping hook 17 matched with the buckle 16 in a sealing and clamping way, the plurality of heat exchanger bodies 1 are stacked up and down and are fixed in a sealing way through the buckle 16 and the clamping hook 17 to form a heat exchanger assembly, and a second exhaust port 9 of the heat exchanger assembly positioned on the lower heat exchanger body 1 is communicated with a second air inlet 8 of the heat exchanger body 1 positioned on the upper heat exchanger body through a pipeline.
The heat exchanger assembly is formed by combining a plurality of detachable heat exchanger bodies 1, hot gas channels 5 between adjacent heat exchanger bodies 1 are mutually communicated, different heat exchanger bodies 1 are almost identical in overall specification, only small differences between the clamping buckles 16 and the clamping hooks 17 exist, the plurality of different heat exchanger bodies 1 can be connected into a whole by utilizing the clamping buckles 16 and the clamping hooks 17 arranged on the heat exchanger bodies 1, and the size and the heat exchange capacity of the heat exchanger assembly can be directly changed by changing the number of the heat exchanger bodies 1, so that the dehumidifying capacity of the dryer is changed; it should be noted that, the side wall of the heat exchanger body 1 provided with the second air inlet 8 and the second air outlet 9 may be provided with the fastening buckle 16 and the fastening hook 17, and when the heat exchanger assembly is assembled, the cold air channels 4 between the adjacent heat exchanger bodies 1 are mutually communicated, and the fastening buckle 16 and the fastening hook 17 arranged on the side wall of the heat exchanger body 1 are utilized to connect a plurality of different heat exchanger bodies 1 into a whole.
For the arrangement of the buckle 16 and the hook 17, the main function of the buckle is to connect and fix the two heat exchanger bodies 1 after the buckle is matched and clamped, the structure of the buckle 16 and the hook 17 is a common connecting structure, and the preferred structure of the buckle 16 and the hook 17 is shown in fig. 11 and 12 and is not described in detail herein; meanwhile, the buckle 16 and the hook 17 are not limited to the structural forms shown in the drawings, and other buckles 16 and hooks 17 which can realize different structural forms for connecting and fixing the heat exchanger body 1 are also suitable for the device.
Example 9:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1-8, further includes a support bracket 18 disposed around the heat exchanger body 1 for supporting the heat exchanger body 1. The top end of the support frame 18 is fixedly connected with the heat exchanger body 1 in a bolt connection mode, the bottom of the support frame 18 supports the ground, and the support frame is mainly used for improving the stability of the body of the heat exchanger body 1 when in use; the exhaust end of the condenser 2 is provided with an air supply pipeline 19 connected with a hot air inlet of the drying bin, and a high-pressure fan 20 is arranged in the air supply pipeline 19. The high-pressure fan 20 in the air supply pipeline 19 sends the dehumidified and heated dry hot air into the drying bin to dry crops; the high-pressure fan 20 is provided for improving the flow rate of air so that the drying effect is better.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The efficient energy-saving crop dryer capable of recovering heat energy is used for drying crops in a drying bin and comprises a heat exchanger body (1), an evaporation mechanism and a condenser (2), and is characterized in that,
the heat exchanger comprises a heat exchanger body (1), a plurality of partition plates (3) which are arranged in parallel, wherein the heat exchanger body (1) divides the hollow part inside the heat exchanger body into cold air channels (4) and hot air channels (5) which are alternately arranged at intervals, the cold air channels (4) and the hot air channels (5) are of a sealing structure and are not communicated with each other, a first air inlet (6) and a first air outlet (7) are respectively arranged at the top and the bottom of the heat exchanger body (1) relative to the positions of the hot air channels (5), the first air inlet (6) is connected with a hot air outlet of a drying bin, a second air inlet (8) is arranged at the position of the lower part of the side wall of the heat exchanger body (1) relative to the cold air channels (4), and a second air outlet (9) is arranged at the position of the upper part of the side wall of the heat exchanger body (1) relative to the cold air channels (4);
the evaporation mechanism comprises an evaporator (10) and a compressor (11), wherein the air inlet end of the evaporator (10) is connected with the first air outlet (7), the air outlet end of the evaporator (10) is connected with the second air inlet (8), the air inlet end of the condenser (2) is connected with the second air outlet (9), the air outlet end of the condenser (2) is connected with the hot air inlet of the drying bin, and the compressor (11) transmits heat of the evaporator (10) to the condenser (2) through compression of a refrigerant;
the plate body of the separation plate (3) protrudes towards the cold air channel (4) to form a plurality of vortex grooves (12), the vortex grooves (12) protrude towards the cold air channel (4), grooves are formed in the hot air channel (5), hot and humid air forms vortex when passing through the surface of the recessed vortex grooves (12), and moisture condenses on the recessed surface;
the vortex grooves (12) comprise supporting vortex grooves (121) and auxiliary vortex grooves (122) with the volume smaller than that of the supporting vortex grooves (121), the positions of the supporting vortex grooves (121) which are arranged on two adjacent partition plates (3) forming the cold air channel (4) are corresponding, and the top ends of the groove bodies of the two corresponding supporting vortex grooves (121) are connected in a welding mode;
the separation plate (3) is provided with a plurality of liquid diversion trenches (13) in the vertical direction.
2. The efficient and energy-saving crop dryer capable of recycling heat energy according to claim 1, wherein a gas storage supporting bin (14) with a hollow sealing shell structure is further arranged at the bottom of the heat exchanger body (1), the gas storage supporting bin (14) is connected with the bottom sealing 1 of the heat exchanger body (1) through an opening formed in the top end, a first exhaust port (7) of the hot gas channel (5) is wrapped in the opening, and the side part of the gas storage supporting bin (14) is connected with the evaporator (10) through a gas guide port formed in the side part.
3. The efficient and energy-saving crop dryer capable of recovering heat energy according to claim 2, wherein the exhaust end of the evaporator (10) and the second air inlet (8) and the second air outlet (9) and the condenser (2) are connected through a sealing pipeline (15).
4. A high efficiency energy efficient crop dryer capable of recovering heat energy according to claim 2, wherein the second air inlet (8) and the second air outlet (9) are provided on opposite sides of the heat exchanger body (1).
5. The efficient and energy-saving crop dryer capable of recovering heat energy according to claim 2, wherein a buckle (16) is arranged at the top of the heat exchanger body (1), a clamping hook (17) which is matched with the buckle (16) in a sealing clamping manner is arranged at the bottom of the heat exchanger body (1), a plurality of heat exchanger bodies (1) are stacked up and down and are fixed in a sealing manner through the buckle (16) and the clamping hook (17) to form a heat exchanger assembly, and a second exhaust port (9) of the heat exchanger assembly positioned on the lower heat exchanger body (1) is communicated with a second air inlet (8) of the heat exchanger body (1) positioned on the upper heat exchanger assembly through a pipeline.
6. An energy efficient crop dryer capable of recovering heat energy as claimed in claim 2, further comprising a support frame (18) provided around the heat exchanger body (1) for supporting the heat exchanger body (1).
7. The efficient and energy-saving crop dryer capable of recycling heat energy according to claim 6, wherein an air supply pipeline (19) connected with a hot air inlet of a drying bin is arranged at an exhaust end of the condenser (2), and a high-pressure fan (20) is arranged in the air supply pipeline (19).
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