CN111879071A - Air-source heat pump drying and dehumidifying cycle all-in-one machine - Google Patents
Air-source heat pump drying and dehumidifying cycle all-in-one machine Download PDFInfo
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- CN111879071A CN111879071A CN202010918183.0A CN202010918183A CN111879071A CN 111879071 A CN111879071 A CN 111879071A CN 202010918183 A CN202010918183 A CN 202010918183A CN 111879071 A CN111879071 A CN 111879071A
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- 238000001035 drying Methods 0.000 title claims abstract description 109
- 239000000463 material Substances 0.000 claims abstract description 55
- 230000010412 perfusion Effects 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims description 16
- 238000005485 electric heating Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 238000007791 dehumidification Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 26
- 238000010586 diagram Methods 0.000 description 6
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
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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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- 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
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
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- 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
- F26B21/003—Supply-air or gas filters
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- 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
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
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- 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
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- 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
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
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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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides an air energy heat pump drying and dehumidifying cycle all-in-one machine, wherein a drying area is divided into an air placing area, a material area and an air exhaust area; the equipment area is divided into a humidity exhaust area, a tail gas exhaust area and a heat production area at the top, an exhaust channel is arranged between the humidity exhaust area and the heat exhaust area, the evaporator is arranged on the exhaust channel, an electric fan assembly is arranged between the humidity exhaust area and the tail gas exhaust area, and a tail gas exhaust window is arranged on the outer side of the bottom of the exhaust channel; a hot air inlet window is arranged between the position without the drying tray at the bottom of the material area and the heating area, a perfusion fan is arranged on the hot air inlet window, and a condenser is arranged outside the perfusion fan; and an air inlet window is arranged on the outer side of the equipment area, and fresh air introduced by the air inlet window flows through the condenser and is input into the material area through the perfusion fan after being heated by the condenser. Meanwhile, the bottommost part of the cooling tower is provided with an air return opening, and in the cooling process, low-temperature hot air flows replace high-temperature hot air flows in the material area through the air return opening. The closed drying dehumidification and cooling are realized, the heat recovery of the tail gas is realized in a small space range, the energy loss is greatly reduced, and the energy utilization rate is improved; the drying process runs automatically and is provided with multiple safety protection functions.
Description
Technical Field
The invention relates to the field of drying equipment, in particular to an air energy heat pump drying and dehumidifying cycle all-in-one machine.
Background
Dryers have a great deal of demands in many fields, different application fields, and different articles have different demands on dryers. Different dryers need to be designed by combining different products to be dried, and meanwhile, the dryer is a product with high energy consumption and generally needs to work continuously when being applied to production, so that the dryer has higher requirements on efficiency. FIG. 1 is a partial component distribution diagram of a cylinder heat pump dryer, the whole machine body is cylindrical and mainly comprises a cylinder shell 1, a base 6, a compressor unit, a fan 9, a control electric box 8, a tray 4, an expansion valve and a fan protection net 2, wherein the base is arranged at the bottom of the cylinder shell, the fan protection net 2 is arranged at the top of the cylinder shell 1, the tray 4 divides the cylinder shell 1 into a heating cavity and a material cavity, the compressor unit is arranged in the heating cavity, and the material cavity is used for placing articles to be dried; the compressor unit comprises a compressor 7, an evaporator 5 and a condenser 10, wherein the evaporator is arranged along the periphery of the cylinder shell, the condenser is arranged in the middle of the cylinder shell, namely the evaporator 5, and a partition plate is adopted between the evaporator 5 and the condenser 10 for isolation. The tray is a porous sieve plate, the condenser 10 is arranged below the porous sieve plate, and a connecting air channel is arranged between the condenser and the porous sieve plate; a fan bracket 3 is arranged above the tray, and the fan is fixed on the fan bracket. When the condenser 10 works, peripheral air is heated, materials to be dried are arranged on the porous sieve plate, the fan 9 is controlled to work, hot air prepared by the condenser 10 is upwards extracted, the materials arranged on the porous sieve plate are heated through the porous sieve plate, and further moist hot air generated after heating is discharged outside through the fan protecting net, so that heating of articles is realized; the porous sieve plate is favorable for uniform distribution of high-temperature air, and uniform heating of the articles to be dried arranged on the porous sieve plate is realized. However, the drying machine has the following defects that the tail gas generated in the drying process is directly discharged due to the volume and space limitation of the integrated machine, and the redundant heat in the discharged tail gas cannot be recovered, so that the energy efficiency of the whole product is not high; the dried product is exposed in the air, and the product is easy to absorb moisture reversely after being cooled after being dried, so that the quality of the product is influenced; meanwhile, the dryer is only suitable for the requirements of small-quantity or small-batch drying, is obviously not suitable for establishing a drying room for slightly-small and slightly-large planters, and needs a drying device which is suitable for slightly-small and slightly-large drying requirements, good in drying quality and high in energy efficiency.
Disclosure of Invention
The invention aims to solve the technical problem of how to provide a drying device which is suitable for drying large-batch articles, has good drying quality effect and no moisture absorption, and realizes tail gas treatment and waste heat recycling on a small all-in-one machine.
The invention provides an air energy heat pump drying and dehumidifying cycle all-in-one machine which comprises an integral closed box body, wherein the box body is divided into a drying area and an equipment area by a hollow partition plate, the drying area is divided into a bottom air placing area and a middle material area by the partition plate, a drying tray is arranged at the middle upper part of the material area, and the top part of the material area is a vacant heat exhausting area; the equipment area is divided into a dehumidifying area at the top, a tail gas exhaust area at the middle and a heating area at the bottom by a partition board, the position of the dehumidifying area is consistent with that of the heat exhaust area, an exhaust channel is arranged between the dehumidifying area and the heat exhaust area, an evaporator is arranged on the exhaust channel, an electric fan assembly for exhausting air downwards is arranged on a partition board between the dehumidifying area and the tail gas exhaust area, and a tail gas exhaust window is arranged on the outer side of the bottom of the exhaust channel; a hot air inlet window is arranged between the position, without the drying tray, at the bottom of the material area and the heating area, a perfusion fan is arranged on the hot air inlet window, and a condenser is arranged outside the perfusion fan; the outside of the equipment area is provided with an air inlet window, fresh air introduced by the air inlet window flows through the condenser, heated by the condenser and input into the material area through the perfusion fan, and meanwhile, the fresh air introduced by the air inlet window replaces high-temperature hot air in the material area when cooled.
The air energy heat pump drying and dehumidifying cycle all-in-one machine is characterized in that an electric heating assembly is further arranged on the top of the heat exhaust area.
The air energy heat pump drying and dehumidifying cycle all-in-one machine is characterized in that a compressor unit is arranged at the bottom of a heating area, refrigerant pipelines connected between an evaporator and the compressor unit and between the evaporator and a condenser are arranged in a hollow partition plate, and the hollow partition plate is made of heat insulating materials.
The air energy heat pump drying and dehumidifying cycle all-in-one machine is characterized in that a drain pan is arranged at the bottom of the air placing area, and a water outlet on the evaporator is communicated with the drain pan through a drain pipe.
The air energy heat pump drying and dehumidifying cycle all-in-one machine is characterized in that the drying tray is a drying tray which is more than 2 layers and is detachably arranged.
The air energy heat pump drying and dehumidifying cycle all-in-one machine is characterized in that an induced draft fan is arranged on a connecting window between the equipment area and the air holding area.
The air-source heat pump drying and dehumidifying cycle all-in-one machine is characterized by comprising an intelligent control module, wherein the intelligent control module is at least provided with a drying mode and a cooling mode, and when the humidity of a material to be dried is greater than a preset threshold value by detecting the humidity of the material to be dried, the operation is controlled to be in the drying mode; and when the humidity of the materials to be dried is less than or equal to a preset threshold value, controlling the materials to be dried to operate in a cooling mode.
The air energy heat pump drying and dehumidifying cycle all-in-one machine is characterized in that in the drying mode, a compressor unit is controlled to operate at high frequency, an induced draft fan is closed, an electric fan assembly and a perfusion fan are controlled to be opened, fresh air is introduced from an air inlet window and flows through a condenser, a high-temperature high-pressure heating agent is condensed in the condenser to release heat, the newly introduced fresh air is heated to be high-temperature dry gas, the high-temperature dry gas is input into a material area under the action of the perfusion fan and is heated to materials on a drying tray, the heated medium-temperature high-humidity gas provides a heat source for evaporation of a refrigerant in an evaporator through an evaporator arranged on the side edge of the bottom, moisture in the medium-temperature high-humidity gas is condensed and is discharged through a tail gas exhaust window.
The air energy heat pump drying and dehumidifying cycle all-in-one machine is characterized in that in the cooling mode, a compressor unit is controlled to gradually reduce the running frequency, an induced draft fan is turned on, an electric fan assembly and a perfusion fan are controlled to be turned on, so that fresh air is introduced from an air inlet window, part of fresh air flows through a condenser, and the temperature of the fresh air input into a material area is gradually reduced; meanwhile, low-temperature fresh air is introduced into the air placing area through the induced draft fan, so that the temperature of the materials in the material room is gradually reduced to a set temperature range.
The air energy heat pump drying and dehumidifying cycle all-in-one machine is characterized in that an electric heating assembly is additionally started in a drying mode, so that the temperature of medium-temperature high-humidity gas is increased, the evaporation of water vapor on materials is accelerated, and the problem of inconsistent drying degrees of an upper layer and a lower layer is solved; meanwhile, the heat generated by the electric heating assembly is recycled through the evaporator.
The implementation of the invention has the following beneficial effects: the closed drying dehumidification and cooling are realized, no tail gas waste heat is discharged, reverse moisture absorption is avoided, meanwhile, the heat recovery of the discharged tail gas is skillfully realized in a small space range, the energy loss is greatly reduced, and the energy utilization rate is improved; the whole drying process runs automatically, multiple safety protection functions are provided, and great convenience is brought to users. The whole product has compact structure, easy disassembly and assembly and more convenient after-sale maintenance and repair. The whole machine is light and handy, and convenient the removal satisfies the installation of different occasions. The whole machine has low cost, less investment and wide popularization range. The drying oven is suitable for commercial and civil use, can be adjusted in a small quantity and a large quantity, and is suitable for drying a large quantity of products.
Drawings
FIG. 1 is a sectional view of a part of a drum heat pump dryer;
FIG. 2 is a general schematic diagram of an embodiment of an air-source heat pump drying and dehumidifying cycle all-in-one machine;
FIG. 3 is a schematic diagram of an air-source heat pump drying and dehumidifying cycle all-in-one machine after a door panel is opened;
FIG. 4 is an exploded view of an embodiment of an air-source heat pump drying and dehumidifying cycle all-in-one machine;
FIG. 5 is a schematic view of the working flow of the air-source heat pump drying and dehumidifying cycle all-in-one machine.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
FIG. 2 is a general schematic diagram of an embodiment of an air-source heat pump drying and dehumidifying cycle all-in-one machine; FIG. 3 is a schematic diagram of an air-source heat pump drying and dehumidifying cycle all-in-one machine after a door panel is opened; fig. 4 is an exploded view of an embodiment of an air-source heat pump drying and dehumidifying cycle all-in-one machine. Fig. 5 is a schematic diagram of a working flow of an air-source heat pump drying and dehumidifying cycle all-in-one machine, which mainly comprises a rear panel assembly B1, a top cover plate B2, a drying tray B3, a right inner tray lining plate B4, a right side panel assembly B5, an electric heating assembly B6, a water receiving tray B7, a front door panel B8, a line controller B9, a left front panel assembly B10, a compressor B11, a base B12, an electric cabinet B13, a compressor base B14, a left lower side panel assembly B15, a left upper panel assembly B16, a condenser B17, a perfusion fan B18, a left inner tray lining plate B19, an electric fan assembly B20, an evaporator B21 and a fresh air filter B22.
The box body mainly comprises a rear panel assembly B1, a top cover plate B2, a right side panel assembly B5, an electric heating assembly B6, a front door panel B8, a left front panel assembly B10, a base B12, a left lower side panel assembly B15 and a left upper panel assembly B16; the box body is divided into a drying area and an equipment area by a hollow partition board, the drying area is divided into a gas containing area A5 at the bottom and a material area A3 at the middle part by the partition board, a drying tray is arranged at the middle upper part of the material area, and a heat exhausting area A1 which is empty at the top is arranged at the top; the equipment area is divided into a dehumidifying area A2 at the top, a tail gas exhaust area A4 at the middle and a heating area A6 at the bottom by a partition board, an exhaust channel is arranged between the dehumidifying area and the tail gas exhaust area, an evaporator is arranged on the exhaust channel, an electric fan assembly for drawing air downwards is arranged on the partition board between the dehumidifying area and the tail gas exhaust area, and a tail gas exhaust window is arranged at the outer side of the bottom of the exhaust channel; a hot air inlet window is arranged between the position, without the drying tray, at the bottom of the material area and the heating area, a perfusion fan is arranged on the hot air inlet window, and a condenser is arranged outside the perfusion fan; and an air inlet window is arranged on the outer side of the equipment area, and fresh air introduced by the air inlet window flows through the condenser and is input into the material area through the perfusion fan after being heated by the condenser.
A compressor base B14 is arranged on the base B12, and a compressor B11 is fixed on the compressor base B14; the material area is provided with a plurality of drying trays B3 which are detachably arranged on a right inner tray lining board B4 and a left inner tray lining board B19. The number and spacing of the drying trays B3 can be adjusted according to the number and volume of the materials.
The outer side of the bottom of the exhaust channel is provided with an exhaust window, and the exhaust window is arranged at the position instead of being directly discharged, so that the temperature of the exhaust gas discharged from the exhaust window is further reduced. The problem that condensation easily occurs at the air outlet especially when the external temperature is low is prevented or reduced.
The intelligent control module can be selectively arranged on the electric cabinet or the wire controller, at least a drying mode and a cooling mode are arranged on the intelligent control module, and when the humidity of the material to be dried is greater than a preset threshold value by detecting the humidity of the material to be dried, the intelligent control module is controlled to operate in the drying mode; and when the humidity of the materials to be dried is less than or equal to a preset threshold value, controlling the materials to be dried to operate in a cooling mode. Of course, a manual mode is also generally provided, and the mode of operation, the temperature of drying and the finally achieved drying degree can be manually set.
Under the drying mode, control compressor unit high frequency operation, close the induced draft fan, control opens electric fan assembly and perfusion fan, realize leading in new trend from the air inlet window, and the flow is through the condenser, high temperature high pressure heat agent takes place the condensation release heat at the condenser, heat new trend of leading in for high temperature drying gas, import the material district under the effect of perfusion fan, realize heating the material on the stoving tray, the medium temperature humid gas after the heating, through setting up the evaporimeter in bottom side, provide the heat source for the evaporation of refrigerant in the evaporimeter, the moisture in the medium temperature humid gas takes place the condensation, and discharge through arranging the exhaust window.
After the drying meets the requirement, the product cannot be quickly heated and cooled, otherwise, the influence on the product quality is very large. Therefore, a cooling mode is set, the compressor unit is controlled to gradually reduce the running frequency, the induced draft fan is turned on at the same time, and the electric fan assembly and the perfusion fan are controlled to be turned on, so that fresh air is introduced from the air inlet window, part of fresh air flows through the condenser, and the temperature of the fresh air input to the material area is gradually reduced; meanwhile, low-temperature fresh air is introduced into the air placing area through the induced draft fan, so that the temperature of the materials in the material room is gradually reduced to a set temperature range.
Since the multi-layer drying tray B3 is used, heated hot air is fed from the bottom, and therefore, the temperature is gradually lowered and moisture is increased as the level rises. The water vapor is not easy to volatilize in a low-temperature state, and the secondary drying effect is not good, so that the electric heating assembly is creatively added to be started, the temperature of the medium-temperature high-humidity gas is increased, the evaporation and dehumidification of the water vapor in the air at the top are accelerated, the rising of the high-humidity high-temperature gas at the lower layer can be accelerated, the drying speed of the material is integrally accelerated, and the problem that the drying degrees of the upper layer and the lower layer are inconsistent is solved; meanwhile, the heat generated by the electric heating assembly is recycled through the evaporator.
The air energy heat pump drying and dehumidifying cycle all-in-one machine solves the problems that water vapor generated in the drying process, waste of redundant heat, air flow in a sealed space is turbid, and redundant water vapor cannot be discharged or replaced and the like. In operation, only the front door plate needs to be opened to replace materials, and the bottom of the front door plate is provided with a plurality of universal wheels for supporting, so that the front door plate can be conveniently moved by a user. And has the following advantages:
1. the closed drying and dehumidifying mode is adopted, no tail gas waste heat is discharged, no noise pollution is caused, and the method belongs to a high-environmental-protection product.
2. The drying temperature is 15-120 ℃, and the cold/hot air drying mode fully meets the drying requirements of various aquatic products, and replaces the traditional drying of steam, electric heating, hot air and the like.
3. The drying quality of the aquatic products is improved, and the color and the luster of the aquatic products reach high-quality standards and are superior to those of the aquatic products in a sun-drying mode.
4. The drying process reaches the standard of a class of sanitary conditions, and the product is fully suitable for the requirement of export grade.
5. Advanced ventilation and air intake dehumidification system design, reach ventilation requirement and stable drying condition, energy-conserving drying-machine.
6. The high-temperature heat pump principle is adopted to carry out steam condensation heat recovery, no waste heat is discharged, the operation cost is saved, the cost can be saved by more than 40 percent compared with a coal burning mode, and the cost can be saved by more than 60 percent compared with fuel oil and electric heating.
7. Compared with the traditional dehumidifier and air conditioner mode, the energy can be saved by more than 50 percent, and the drying period can be shortened.
8. Advanced drying process, drying room design and intelligent automatic control system. Different temperature program curves (variable temperature drying) are set according to the product, and the drying condition is stable and uniform and has good quality.
9. The heat pump dehumidification method (the dehumidification effect is more than 30% of that of a common heat pump dehumidification dryer) is adopted, the performance is excellent under the conditions of high temperature and low humidity, and the drying period of the product is shortened.
10. The use and management are convenient, and the equipment does not need full-time manual management and runs fully automatically.
11. Setting multiple safety protection functions: phase sequence protection, open phase protection, overload protection, high voltage protection, low voltage protection, etc.
While the invention has been described with reference to a particular embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An air energy heat pump drying and dehumidifying cycle all-in-one machine comprises an integral closed box body, wherein the box body is divided into a drying area and an equipment area by a hollow partition plate, the drying area is divided into a gas containing area at the bottom and a material area in the middle by the partition plate, a drying tray is arranged at the middle upper part of the material area, and the top is an empty heat exhausting area; the equipment area is divided into a dehumidifying area at the top, a tail gas exhaust area at the middle and a heating area at the bottom by a partition board, the position of the dehumidifying area is consistent with that of the heat exhaust area, an exhaust channel is arranged between the dehumidifying area and the heat exhaust area, an evaporator is arranged on the exhaust channel, an electric fan assembly for exhausting air downwards is arranged on a partition board between the dehumidifying area and the tail gas exhaust area, and a tail gas exhaust window is arranged on the outer side of the bottom of the exhaust channel; a hot air inlet window is arranged between the position, without the drying tray, at the bottom of the material area and the heating area, a perfusion fan is arranged on the hot air inlet window, and a condenser is arranged outside the perfusion fan; the outside of the equipment area is provided with an air inlet window, fresh air introduced by the air inlet window flows through the condenser, heated by the condenser and input into the material area through the perfusion fan, and meanwhile, the fresh air introduced by the air inlet window replaces high-temperature hot air in the material area when cooled.
2. The air-source heat pump drying and dehumidifying cycle all-in-one machine as claimed in claim 2, wherein an electric heating assembly is further disposed on a top of the exhaust heat area.
3. The air-source heat pump drying and dehumidifying cycle all-in-one machine as claimed in claim 1, wherein the compressor unit is disposed at the bottom of the heating zone, and refrigerant pipes connected between the evaporator and the compressor unit and between the evaporator and the condenser are disposed in a hollow partition plate made of a heat insulating material.
4. The air-source heat pump drying and dehumidifying cycle all-in-one machine as claimed in claim 3, wherein a drain pan is disposed at the bottom of the air accommodating region, and a drain port on the evaporator is communicated with the drain pan through a drain pipe.
5. The all-in-one machine of the air-source heat pump drying, dehumidifying and circulating of claim 4 is characterized in that the drying tray is a drying tray with more than 2 layers and is detachably arranged.
6. The air-source heat pump drying and dehumidifying cycle all-in-one machine as claimed in claim 5, wherein an induced draft fan is disposed on a connecting window between the equipment area and the air accommodating area.
7. The air-source heat pump drying and dehumidifying cycle all-in-one machine of claim 6, which is characterized by comprising an intelligent control module, wherein the intelligent control module is at least provided with a drying mode and a cooling mode, and when the humidity of the material to be dried is detected to be greater than a preset threshold value, the operation in the drying mode is controlled; and when the humidity of the materials to be dried is less than or equal to a preset threshold value, controlling the materials to be dried to operate in a cooling mode.
8. The air-source heat pump drying and dehumidifying cycle all-in-one machine as claimed in claim 7, wherein in the drying mode, the compressor unit is controlled to operate at high frequency, the induced draft fan is turned off, the electric fan assembly and the perfusion fan are controlled to be turned on, fresh air is introduced from the air inlet window and flows through the condenser, the high-temperature high-pressure heating agent condenses in the condenser to release heat, the newly introduced fresh air is heated to high-temperature dry gas, the high-temperature dry gas is input into the material area under the action of the perfusion fan to heat the material on the drying tray, the heated medium-temperature high-humidity gas provides a heat source for evaporation of a refrigerant in the evaporator through an evaporator arranged on the side edge of the bottom, and moisture in the high-temperature high-humidity gas condenses and is discharged through the exhaust window.
9. The air-source heat pump drying and dehumidifying cycle all-in-one machine as claimed in claim 8, wherein in the cooling mode, the compressor unit is controlled to gradually reduce the operating frequency, the induced draft fan is turned on, and the electric fan assembly and the perfusion fan are controlled to be turned on, so that fresh air is introduced from the air inlet window, part of fresh air flows through the condenser, and the temperature of the fresh air input to the material area is gradually reduced; meanwhile, low-temperature fresh air is introduced into the air placing area through the induced draft fan, so that the temperature of the materials in the material room is gradually reduced to a set temperature range.
10. The air-source heat pump drying and dehumidifying cycle all-in-one machine of claim 9 is characterized in that in a drying mode, an electric heating assembly is additionally started, so that the temperature of medium-temperature high-humidity gas is increased, the evaporation of water vapor on materials is accelerated, and the problem of inconsistent drying degrees of an upper layer and a lower layer is solved; meanwhile, the heat generated by the electric heating assembly is recycled through the evaporator.
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| CN202010918183.0A CN111879071B (en) | 2020-09-03 | 2020-09-03 | Air source heat pump drying, dehumidifying and circulating all-in-one machine |
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| CN111879071B CN111879071B (en) | 2024-09-20 |
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| CN114838580A (en) * | 2022-05-14 | 2022-08-02 | 黄山徽工智造节能设备有限公司 | Air energy heat pump dryer |
| CN116491544A (en) * | 2023-03-23 | 2023-07-28 | 阳江职业技术学院 | Low-temperature multi-stage temperature control drying method for bacteria-reducing and bacteria-controlling aquatic product |
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| CN111879071B (en) | 2024-09-20 |
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