CN112620226A

CN112620226A - Agricultural product cleaning-drying integrated equipment based on heat pump technology

Info

Publication number: CN112620226A
Application number: CN202011567715.7A
Authority: CN
Inventors: 周传辉; 吕孟秋; 李兆青; 胡航; 陈欣欣; 刘锋; 胡学军; 周广昌; 乐玲
Original assignee: Baicheng Electromechanical Engineering Technology Hubei Co ltd; Wuhan University of Science and Engineering WUSE
Current assignee: Baicheng Electromechanical Engineering Technology Hubei Co ltd; Wuhan University of Science and Engineering WUSE; Wuhan University of Science and Technology WHUST
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-04-09

Abstract

The invention discloses an agricultural product cleaning-drying integrated device based on a heat pump technology, which comprises a heat pump unit, an ice making device, a cleaning device, a drying device, a sewage treatment and recycling device and a hot air circulation sensible heat recycling device, wherein the output side of the circulating heat pump unit is connected with the hot air circulation sensible heat recycling device, the input side of the heat pump unit is provided with the ice making device which is connected with the cleaning device, the cleaning device is connected with the sewage treatment and recycling device, the sewage treatment and recycling device is connected with the ice making device, the cleaning device is connected with the heat pump unit through the drying device, and a pipeline between the cleaning device and the sewage treatment and recycling device penetrates through the hot air circulation sensible heat recycling device. But this equipment efficient washing agricultural product, can also directly carry out the drying with the agricultural product after the washing simultaneously, cyclic utilization water resource and heat energy, effectual saving cost.

Description

Agricultural product cleaning-drying integrated equipment based on heat pump technology

Technical Field

The invention relates to the technical field of agricultural product processing, in particular to an agricultural product cleaning-drying integrated device based on a heat pump technology.

Background

With the rapid increase of the demand and supply requirements of the market and the increase of the planting scale of agricultural products, the yield of the agricultural products is continuously improved. For agricultural products such as potatoes, sweet potatoes and the like which grow in the ground, after the agricultural products are dug out, corresponding matched treatment procedures such as cleaning, impurity removal, disinfection, drying, packaging and the like are needed, and then the agricultural products can flow into the market for people to purchase. At present, the large-scale picking process of a plurality of agricultural products is basically automated, and the agricultural products with large workload and heavy tasks can be treated by a machine instead of manpower, so that the workload of people is reduced to a certain extent, the labor cost is saved, and the efficiency is improved. However, the machine picking only completes the primary treatment process of the agricultural products, and the subsequent related processes still need manual support to be carried out. Taking crops such as sweet potatoes, potatoes and the like as an example, a large amount of dust can be attached to the crops during picking, and then manual cleaning and impurity removal are needed, but because the crops are required to be in a low-temperature drying environment as much as possible during storage, the crops need to be further subjected to moisture removal and drying, and finally products with good selling quality are obtained through relevant processes and are distributed in the market.

At present, for the soil crops such as potatoes and sweet potatoes, the common cleaning process is to manually wash the soil crops by water or to directly dry the soil crops by a brush, the water is not involved, the soil crops directly flow into the market after being treated to a certain degree, and the agricultural products are prevented from going bad and rotten in the washing process. For the rest of the agricultural products, many also require water washing to remove the insect eggs and pesticide residues on the surface. The washed agricultural products are generally selected to be dried, and can flow into the market after the moisture is dissipated to a certain degree, and meanwhile, the moisture can play a certain role in keeping fresh. Certainly, some automatic agricultural product cleaning devices are also available in the market at present, the internal principle and structure of the automatic agricultural product cleaning devices are similar to those of common washing machines, and the automatic agricultural product cleaning devices are stirred by a machine to generate friction so as to remove dirt on the surfaces of agricultural products, or high-pressure spray water or high-pressure air and the like are added into the automatic agricultural product cleaning devices to clean the agricultural products. Admittedly, the above-described method has certain advantages in cleaning and treating agricultural products. However, the method only aims at a single step of cleaning and impurity removal in the agricultural product treatment process, and meanwhile, most of water brought to the surfaces of the crops by washing is more harmful than beneficial, and the quality of the agricultural products is influenced because the surface water cannot be dried in time.

Disclosure of Invention

The invention aims to overcome the disadvantages of a cleaning link in the traditional agricultural product treatment process, provides an agricultural product cleaning-drying integrated device based on a heat pump technology, and prepares smoothie, an ice cone and dry hot air by utilizing the heat pump technology to solve the problems of efficient cleaning and rapid drying of agricultural products, so that the original freshness of the agricultural products is kept, and the effect of improving the taste can be achieved to a certain extent.

The purpose of the invention is realized by the following technical scheme:

the utility model provides an agricultural product washs-dry integration equipment based on heat pump technology, includes heat pump set, ice making device, belt cleaning device, drying device, sewage treatment recycles the device, and hot air circulation sensible heat recovery unit, it is circulating heat pump set's output side with hot air circulation sensible heat recovery unit links to each other, heat pump set's input side is provided with ice making device links to each other, ice making device with belt cleaning device links to each other, belt cleaning device with sewage treatment recycles the device and links to each other, sewage treatment recycles the device with ice making device links to each other, belt cleaning device passes through drying device with heat pump set links to each other, belt cleaning device with pipeline between the sewage treatment recycles the device passes hot air circulation sensible heat recovery unit.

Further, heat pump set includes compressor, air-blower, condenser, choke valve, evaporimeter, the output of compressor links to each other with the one end of heat pump set refrigerant circulation pipeline, the other end of heat pump set refrigerant circulation pipeline passes in proper order the condenser with behind the evaporimeter with the input of compressor links to each other, the choke valve sets up on the heat pump set refrigerant circulation pipeline, the air-blower sets up on the condenser, the evaporimeter with ice making device links to each other, the condenser respectively through condenser air supply line and condenser hot air supply line with hot air circulation sensible heat recovery unit links to each other.

Further, the ice making device comprises an ice making groove, the evaporator is laid in the ice making groove, the ice making groove is connected with the cleaning device through an ice-water mixed liquid conveying pipeline, and the ice making groove is connected with the sewage treatment recycling device through an ice making groove conveying and conveying pipeline.

Further, the cleaning device comprises a smoothie cleaning pool, a smoothie cleaning pool bottom motor frequency converter, a smoothie cleaning pool inner barrel interlayer, a smoothie cleaning pool outer barrel, a smoothie cleaning pool shell wall surface and a smoothie cleaning pool bottom motor rotating shaft, wherein the smoothie cleaning pool outer barrel is arranged in the smoothie cleaning pool, the smoothie cleaning pool inner barrel is arranged in the smoothie cleaning pool outer barrel, the smoothie cleaning pool inner barrel interlayer is arranged between the smoothie cleaning pool inner barrel and the smoothie cleaning pool outer barrel, the smoothie cleaning pool inner barrel is a mixture of agricultural products, smoothie and an ice cone, the bottom of the smoothie cleaning pool inner barrel is provided with the smoothie cleaning pool bottom motor for driving the smoothie cleaning pool inner barrel to rotate, the smoothie cleaning pool bottom motor frequency converter is arranged at the smoothie cleaning pool bottom, the ice sand cleaning tank is connected with the ice water mixed liquid conveying pipeline, sediment in the ice sand cleaning tank is discharged to the outer side of the ice sand cleaning tank through a sediment discharge pipe at the bottom of the ice sand cleaning tank, a stop valve of the sediment discharge pipeline at the bottom of the ice sand cleaning tank is arranged on the sediment discharge pipe at the bottom of the ice sand cleaning tank, the inner tank in the ice sand cleaning tank is connected with the sewage treatment and recycling device after passing through the hot air circulation sensible heat recovery device through an outlet pipeline of the ice water mixed liquid in the ice sand cleaning tank, and the inner tank in the ice sand cleaning tank is connected with the hot air circulation sensible heat recovery device through an inlet agricultural product conveying pipeline of the drying box.

Further, sewage treatment recycles device includes cistern, filtering ponds and sedimentation tank, the sedimentation tank pass through sedimentation tank entry pipeline with the mixed liquid outlet pipe of ice-water in ice-sand washing pond is connected, the filtering ponds with through sedimentation tank treatment water outlet pipe between the sedimentation tank connect, the cistern with through filtering ponds treatment water outlet pipe between the filtering ponds connect, the cistern with ice making groove transport water pipeline links to each other.

Furthermore, an ice making groove water conveying pipeline first valve and an ice making groove water conveying pipeline second valve are arranged on the ice making groove water conveying pipeline, and an ice making groove water conveying pipeline water pump is arranged between the ice making groove water conveying pipeline first valve and the ice making groove water conveying pipeline second valve.

Further, the drying device comprises a drying box, the drying box comprises a drying box air distribution pipe, drying box sieve holes, a drying box storage plate, a drying box vertical support frame, a drying box bottom water outlet hole, a drying box horizontal support frame and drying box air distribution pipe air holes, the drying box vertical support frame is provided with a plurality of layers of the drying box storage plate, the drying box storage plate is provided with a plurality of drying box sieve holes, the top of the drying box vertical support frame is provided with the drying box air distribution pipe, the drying box air distribution pipe is provided with the drying box air distribution pipe air holes, the bottom of the drying box vertical support frame is provided with the drying box horizontal support frame, the drying box horizontal support frame is provided with the drying box bottom water outlet hole, the drying box air distribution pipe is connected with the condenser dry hot air supply pipeline through a drying box dry hot air inlet valve, the drying cabinet with drying cabinet entry agricultural product transport pipe says and links to each other, the drying cabinet passes through drying cabinet humid hot air outlet pipe way and links to each other with heated air circulation sensible heat recovery unit.

Further, the heated air circulation sensible heat recovery device comprises an air storage box, an induced draft fan, a dividing wall type dehumidifier and a multipoint balance heat exchanger, wherein the air storage box is connected with the middle part of a dry hot air supply pipeline of the condenser through a first air inlet valve of the air storage box, the air storage box is connected with the middle part of the air supply pipeline of the condenser through an air outlet valve of the air storage box, the air storage box is connected with the dry hot air outlet pipeline of the multipoint balance heat exchanger through a second air inlet pipeline of the air storage box, a second air inlet valve of the air storage box is arranged on the second air inlet pipeline of the air storage box, the upper end of the dry hot air outlet pipeline of the multipoint balance heat exchanger is connected with the air supply pipeline of the condenser through a valve of the dry hot air outlet pipeline of the multipoint balance heat exchanger, and the lower end of the dry hot air outlet pipeline of, the multipoint balance heat exchanger is connected with the draught fan through a multipoint balance heat exchanger dry cold air inlet pipeline, the draught fan is connected with one end of a draught fan inlet pipeline, the other end of the draught fan inlet pipeline penetrates through the interior of the dividing wall type dehumidifier and then is connected with one end of a multipoint balance heat exchanger wet hot air outlet pipeline, the other end of the multipoint balance heat exchanger wet hot air outlet pipeline penetrates through the interior of the multipoint balance heat exchanger and is connected with a drying box wet hot air outlet pipeline, the sedimentation tank inlet pipeline penetrates through the dividing wall type dehumidifier and then is connected with an ice water mixed liquid outlet pipeline of the ice sand cleaning tank, a multipoint balance heat exchanger dry cold air inlet pipeline valve is arranged on the multipoint balance heat exchanger dry cold air inlet pipeline, and a supplementary air second air inlet pipeline is arranged on the draught fan inlet pipeline, and a second air inlet pipeline valve for supplementing air is arranged on the second air inlet pipeline for supplementing air, and the second air inlet pipeline for supplementing air is arranged between the induced draft fan and the dividing wall type dehumidifier.

Furthermore, a hot and humid air discharge pipeline and a first supplementary air inlet pipeline are arranged on the hot and humid air outlet pipeline of the multipoint balance heat exchanger, a hot and humid air discharge pipeline valve and a first supplementary air inlet pipeline valve are arranged on the hot and humid air discharge pipeline, a first supplementary air inlet pipeline valve is arranged on the first supplementary air inlet pipeline, the hot and humid air discharge pipeline is arranged between the first supplementary air inlet pipeline and the multipoint balance heat exchanger, and the first supplementary air inlet pipeline is arranged between the dividing wall type dehumidifier and the hot and humid air outlet pipeline.

Furthermore, the inner barrel of the ice sand cleaning tank is provided with screen holes for cleaning the wall surface of the inner barrel of the tank and bulges on the wall surface of the inner barrel of the cleaning tank, the bottom of the inner barrel of the ice sand cleaning tank is provided with a porous disc, the porous disc is provided with a plurality of disc orifices, the porous disc is at least provided with three hinge fixedly connected parts, the hinge fixedly connected parts are connected with the lower end of a connecting hinge, the connecting hinge is connected with a stand column arranged at the opening part of the inner barrel of the ice sand cleaning tank, the opening part of the inner barrel of the ice sand cleaning tank is provided with a pulley block for facilitating the sliding of the connecting hinge, and the inner barrel of the ice sand cleaning tank.

The invention has the beneficial effects that:

1) the agricultural products are cleaned firstly, and then the cleaned agricultural products are dried, wherein water in the cleaning process can be recycled, heat is recycled, cost is effectively saved, and meanwhile, compared with manpower, cleaning efficiency is greatly improved.

2) The agricultural product rough-processing machine has the advantages of comprehensive functions, reasonable structure, energy conservation, environmental protection, no pollution discharge, higher efficiency and better effect, and can effectively deal with the links of cleaning, drying and the like in the rough-processing process of agricultural products.

3) The hot air circulation sensible heat recovery device can maintain the relative humidity and the temperature of the dry air in the drying box according to different external environments, simultaneously recover the sensible heat of the waste hot air and improve the energy utilization rate to the maximum extent.

4) According to the invention, the porous disc is additionally arranged at the bottom of the inner barrel of the ice sand cleaning tank, so that agricultural products can be conveniently collected, and the brush is arranged, so that the agricultural products can be conveniently cleaned.

Drawings

FIG. 1 is a schematic diagram of a heat pump unit;

FIG. 2 is a schematic view of a multi-point balanced heat exchanger;

FIG. 3 is a schematic view of the connection structure of the present invention;

FIG. 4 is a schematic structural view of an ice cone;

FIG. 5 is a schematic structural view of a smoothie cleaning tank;

FIG. 6 is a schematic view showing the structure of the wall surface of the inner tub in the washing tank;

FIG. 7 is a side view of the wall of the inner tub of the washing tub;

FIG. 8 is a schematic view of the structure of the drying box;

FIG. 9 is a schematic view of a structure of a central shaft of the cleaning tank with brushes arranged thereon;

FIG. 10 is a schematic view showing a structure in which brushes are arranged on a perforated disc at a central axis;

FIG. 11 is a schematic view of a brush disposed on a side wall of the cleaning tank;

FIG. 12 is a schematic view of the arrangement of the brushes on the perforated disc of the sidewall;

in the figure, 1-compressor, 2-heat pump set refrigerant circulation pipeline, 3-condenser refrigerant inlet, 4-blower, 5-condenser, 6-condenser refrigerant outlet, 7-condenser dry and cold air inlet, 8-condenser air supply pipeline, 9-condenser dry and hot air outlet, 10-condenser dry and hot air supply pipeline, 11-evaporator refrigerant outlet, 12-ice making groove, 13-evaporator refrigerant inlet, 14-throttle valve, 15-drying box dry and hot air inlet valve, 16-drying box dry and hot air inlet, 17-air storage box first air inlet valve, 18-air storage box first air inlet pipeline port, 19-air storage box first air inlet, 20-air storage box, 21-air storage box second air inlet, 22-air storage box air outlet valve, 23-air storage box air outlet, 24-air storage box air outlet pipe port, 25-air storage box second air inlet pipe, 26-air storage box second air inlet valve, 27-drying box moist hot air outlet, 28-drying box, 29-drying box agricultural product inlet, 30-drying box inlet agricultural product transport pipe, 31-drying box moist hot air outlet pipe, 32-multipoint balance heat exchanger moist hot air inlet, 33-ice sand cleaning pool agricultural product outlet, 34-multipoint balance heat exchanger dry hot air outlet pipe, 35-multipoint balance heat exchanger dry hot air outlet, 36-moist hot air outlet pipe valve, 37-moist hot air outlet pipe, 38-multipoint balance heat exchanger dry cold air inlet, 39-multipoint balance heat exchanger dry cold air inlet pipe, 40-a dry cold air inlet pipeline valve of a multipoint balance heat exchanger, 41-an ice-water mixed liquid outlet of an ice-sand cleaning pool, 42-an ice-water mixed liquid outlet pipeline of the ice-sand cleaning pool, 43-a wet hot air outlet of the multipoint balance heat exchanger, 44-a wet hot air outlet pipeline of the multipoint balance heat exchanger, 45-an induced draft fan outlet, 46-an induced draft fan, 47-an induced draft fan inlet, 48-an induced draft fan inlet pipeline, 49-a dividing wall type dehumidifier dry cold air outlet, 50-a dividing wall type dehumidifier ice-water mixed liquid inlet, 51-a dividing wall type dehumidifier, 52-an ice-water mixed liquid outlet of the dividing wall type dehumidifier, 53-a dividing wall type dehumidifier wet hot air inlet, 54-a sedimentation pool inlet pipeline, 55-a sedimentation pool inlet and 56-a sediment discharge pipeline valve at the, 57-a sand-ice cleaning tank, 58-a sand-ice cleaning tank ice-water mixture inlet, 59-an ice-water mixture conveying pipeline valve, 60-an ice-water mixture conveying pipeline, 61-an ice-making tank ice-water mixture outlet, 62-an evaporator, 63-an ice-making tank conveying water inlet, 64-an ice-making tank conveying water pipeline, 65-an ice-making tank conveying water pipeline first valve, 66-an ice-making tank conveying water pipeline water pump, 67-an ice-making tank conveying water pipeline second valve, 68-a reservoir conveying water outlet, 69-a reservoir, 70-a filtering tank treated water outlet pipeline, 71-a reservoir treated water inlet, 72-a filtering tank treated water outlet, 73-a filtering tank, 74-a settling tank treated water outlet pipeline, 75-a settling tank, 76-a filtering tank treated water inlet, 77-outlet of treated water in a sedimentation tank, 78-valve of a first air inlet pipeline for supplementing air, 79-valve of a first air inlet pipeline for supplementing air, 80-pipe of a sediment discharge pipeline at the bottom of a slush cleaning tank, 81-valve of a sediment discharge pipeline at the bottom of a slush cleaning tank, 82-motor at the bottom of a slush cleaning tank, 83-frequency converter of the motor at the bottom of the slush cleaning tank, 84-valve of an outlet pipeline of ice-water mixed liquid in the slush cleaning tank, 85-valve of an outlet pipeline of ice-water mixed liquid in the slush cleaning tank, 86-liquid of sediment at the bottom of an interlayer of an inner barrel and an outer barrel of the slush cleaning tank, 87-inner barrel of the slush cleaning tank, 88-interlayer of the inner barrel and the outer barrel of the slush cleaning tank, 89-outer barrel of the slush cleaning tank, 90-wall surface of a shell of the slush cleaning tank, 91-rotating, 93-drying box sieve holes, 94-drying box storage plates, 95-drying box vertical support frames, 96-drying box bottom water outlet holes, 97-drying box horizontal support frames, 98-drying box air distribution pipe air holes, 99-washing tank wall surface bulges, 100-washing tank wall surface sieve holes, 101-multipoint balance heat exchangers, 102-ice sand and ice cones, 103-agricultural products, 104-supplementary air second air inlet pipeline valves, 105-supplementary air second air inlet pipelines, 106-multipoint balance heat exchanger dry hot air outlet pipeline valves, 107-brushes, 108-central shafts, 109-connecting hinges, 110-porous discs, 111-pulley blocks, 112-upright posts, 113-hinge connecting parts, 114-disc hole openings, 115-inner hollow rings, 116-low temperature dry air, 117-high temperature dry air, 118-high temperature hot humid air, 119-low temperature hot humid air.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1-12, the present invention provides a technical solution:

the invention utilizes the cold energy provided by the heat pump to prepare the ice sand, the ice cone and the dry hot air, which are used for cleaning agricultural products and drying the agricultural products, and is mainly based on the following principle:

(1) the heat pump technology comprises the following steps: the principle diagram is shown in fig. 1, the heat pump unit mainly comprises a compressor 1, a condenser 5, a throttle valve 14 and an evaporator 62, the compressor 1 is a main work-doing component, and the throttle valve 14 is a throttling pressure-reducing device. The main working flow of the heat pump unit is as follows: in the compressor 1, low-temperature and low-pressure gaseous refrigerant is compressed, the temperature and the pressure are increased, the refrigerant is changed into high-temperature and high-pressure gaseous refrigerant, the high-temperature and high-pressure gaseous refrigerant flows into the condenser 5, the condenser 5 is a heat exchanger, the inside of the condenser is mainly coiled by an S-shaped copper pipe, and fins are generally attached to the outer wall of the copper pipe so as to strengthen the heat exchange capacity of the condenser 5. After the high-temperature high-pressure gaseous refrigerant flows through the condenser 5 with lower temperature, the phase state transformation can occur, the high-temperature high-pressure gaseous refrigerant is changed into a high-pressure low-temperature liquid refrigerant (the low temperature of the high-pressure low-temperature liquid refrigerant is relative to the temperature of the refrigerant when the refrigerant leaves the compressor 1), heat is released after the high-temperature high-pressure gaseous refrigerant is liquefied, so that the outer wall of a copper pipe of the condenser 5 generates heat, the temperature is increased, the heat is dissipated in time through fins and a fan arranged in the condenser 5, and the heat. After passing through the condenser 5, the refrigerant becomes a high-pressure low-temperature liquid refrigerant, and is throttled and depressurized through the throttle valve 14, and the phase state of the refrigerant is not changed at this time, but the pressure is reduced, so that the gasification pressure is reduced, and the gasification process is facilitated to occur inside the evaporator 62. The low-temperature and low-pressure liquid refrigerant flowing through the throttle valve 14 flows into the evaporator 62, absorbs heat of the evaporator 62, and is gasified to become a low-temperature and low-pressure gaseous refrigerant. The evaporator 62 is also a heat exchanger, and the inside thereof is also an S-shaped copper pipe coiled structure, so that after the refrigerant absorbs the heat of the evaporator 62, the temperature of the evaporator 62 is reduced, and the cold of the evaporator 62 is taken away by a fan inside the evaporator 62 or an external cooling water, and the cold is the refrigerating capacity of the evaporator 62 of the heat pump unit. The refrigerant flowing through the evaporator 62 is changed into a low-temperature low-pressure gaseous refrigerant from a low-temperature low-pressure liquid refrigerant, then enters the compressor 1 again for compression, is changed into a high-temperature high-pressure gaseous refrigerant, and is subjected to the next refrigerant circulation flow, so that the heat pump unit forms continuous refrigeration and heating, continuous ice making sand and dry hot air are realized, and a series of functions of the equipment are realized.

(2) Hot air drying and circulating dehumidification technology: after the agricultural products are washed by the ice sand, moisture is attached to the surfaces of the agricultural products, and the agricultural products are deteriorated in advance due to excessive moisture, so that the transportation and the storage are influenced, and therefore, the agricultural products need to be dried. The heat pump technology can be used for preparing hot air with higher temperature, the hot air is conveyed to the agricultural products to be dried in an even airflow mode, and moisture on the surfaces of the agricultural products is promoted to be transmitted into the hot air flow through sensible heat exchange and latent heat exchange, so that the drying purpose is achieved. The temperature of the hot air after drying may be reduced, but its relative humidity may be increased, thereby limiting its ability to be further dried, i.e., the resistance to mass transfer of moisture to the air increases. At this moment, fresh hot dry air is needed for supplement, and the hot humid air with lower drying capacity is exhausted. Because the hot and humid air has a certain sensible heat recovery potential, the hot and humid air can be liquefied and dehumidified after passing through the low-temperature ice sand cleaning equipment, and then can be recycled, so that the cyclic drying and dehumidifying processes of the hot and dry air and the hot and humid air are realized. The process is very important for drying the agricultural products, and the drying efficiency is higher than that of the conventional natural drying, so that the operation is more facilitated.

(3) The multi-point balance heat exchanger sensible heat recovery technology comprises the following steps: the principle schematic diagram is shown in fig. 2, after the agricultural products are dried, hot and humid air with higher temperature can be discharged from the drying box, the hot and humid air still has a certain sensible heat recovery value, and sensible heat can be effectively recovered by utilizing the multipoint balance heat exchanger. The multipoint balance heat exchanger is of a sandwich structure, a thin pipe is nested in the multipoint balance heat exchanger, a cavity is formed outside the thin pipe, and a relatively thick pipeline is arranged on the periphery of the cavity. The hot and wet air with higher temperature passes through the tube pass, the dry air with lower temperature passes through the shell pass, the counter-flow heat exchange is formed, under certain heat exchange time, namely under an ideal condition, the temperature at the outlet of the high-temperature dry air 117 is considered to be equal to or very close to the temperature at the inlet of the high-temperature hot and wet air 118, so that the purpose of transferring the sensible heat of the high-temperature hot and wet air 118 to the high-temperature dry air 117 is achieved, and the dry air with higher temperature is utilized and further heated by the condenser, so that the dry and hot air meeting the drying requirement of agricultural products can be obtained. After the dry hot air dries the agricultural products, the high-temperature hot humid air 118 is obtained continuously, so that the heat of the fresh supplemented low-temperature dry air 116 can be taken away through the multipoint balance heat exchanger, sensible heat exchange is completed, a series of processes such as multipoint balance heat exchange and drying of the next process are carried out, and the low-temperature hot humid air 119 is discharged finally. The main purpose of introducing the multipoint balance heat exchanger is to recover sensible heat, thereby ensuring the maximum energy utilization efficiency of the equipment and simultaneously achieving the optimal operation state.

(4) The technology for cleaning the ice sand and recycling ice water resources comprises the following steps: by utilizing the refrigerating capacity of the evaporator section, when the power consumption of the heat pump unit is larger, lower temperature can be obtained, and more cold energy can be prepared. The copper tubes of the evaporator are placed on the peripheral wall surfaces of the ice making groove, so that the water in the ice making groove fully absorbs the cold energy of the water and the temperature of the water is reduced to reach the ice water phase change temperature point, and the function of preparing the ice sand and the ice cone is formed. Compared with conventional cleaning equipment, the equipment mainly utilizes the ice sand, the ice cone and the added part of water, so that the friction force is larger, and the cleaning effect is better. Meanwhile, after the ice cone is cleaned, water resources can be reused through measures such as filtering and precipitation. The cleaning of agricultural products is realized by utilizing the phase change process of water, other pollutants can not be generated, the effect can be better, and the deep treatment of attachments on the surfaces of the agricultural products such as silt can be achieved.

The utility model provides an agricultural product washs-dry integration equipment based on heat pump technology, including heat pump set, ice making device, belt cleaning device, drying device, sewage treatment recycles the device, heated air circulation sensible heat recovery unit, the output side of circulating heat pump set links to each other with heated air circulation sensible heat recovery unit, heat pump set's input side is provided with ice making device and links to each other, ice making device links to each other with belt cleaning device, belt cleaning device links to each other with sewage treatment recycles the device, sewage treatment recycles the device and links to each other with ice making device, belt cleaning device passes through drying device and heat pump set and links to each other, the pipeline between belt cleaning device and the sewage treatment recycles the device.

In some embodiments, the heat pump unit includes a compressor 1, an air blower 4, a condenser 5, a throttle valve 14, and an evaporator 62, an output end of the compressor 1 is connected to one end of a heat pump unit refrigerant circulation line 2, another end of the heat pump unit refrigerant circulation line 2 sequentially passes through the condenser 5 and the evaporator 62 and then is connected to an input end of the compressor 1, the throttle valve 14 is disposed on the heat pump unit refrigerant circulation line 2, the air blower 4 is disposed on the condenser 5, the evaporator 62 is connected to the ice making device, and the condenser 5 is connected to the hot air circulation sensible heat recovery device through a condenser air supply line 8 and a condenser dry and hot air supply line 10, respectively. A throttle valve 14 is connected between the condenser refrigerant outlet 6 and the evaporator refrigerant inlet 13, a compressor 1 is connected between the condenser refrigerant inlet 3 and the evaporator refrigerant outlet 11, a condenser air supply line 8 is connected at the condenser dry and cold air inlet 7 of the condenser 5, and a condenser dry and hot air supply line 10 is connected at the condenser dry and hot air outlet 9 of the condenser 5.

In some embodiments, the ice making apparatus includes an ice making tank 12, an evaporator 62 is disposed in the ice making tank 12, the ice making tank 12 is connected to the cleaning apparatus through an ice-water mixture conveying pipe 60, and the ice making tank 12 is connected to the sewage treatment recycling apparatus through an ice making tank conveying pipe 64. The ice-water mixed liquid conveying pipeline 60 is connected to the ice-making tank ice-water mixed liquid outlet 61 of the ice-making tank 12, and the ice-making tank conveying water pipeline 64 is connected to the ice-making tank conveying water inlet 63 of the ice-making tank 12. The ice making device mainly comprises an ice making groove 12, an ice-water mixed liquid conveying pipeline 60, an ice making groove conveying water pipeline 64, an ice-water mixed liquid conveying pipeline valve 59 and the like. The ice making groove is a cuboid groove, the side wall and the bottom of the ice making groove are of a certain thickness and are of an interlayer steel plate structure, copper pipes of evaporators are laid between interlayers to provide cold energy for the ice making groove to prepare ice sand and ice cones, and meanwhile, the copper pipes of refrigerants are prevented from being directly contacted with water, so that severe frosting is caused, and the normal ice making process is influenced. The process of preparing the ice sand is a controllable ice making process, water with a certain depth is put into the ice making groove, the mode that the water in the ice making groove receives the cold energy is uniform, and the freezing mode can be uniform temperature reduction and freezing. Because the water depth in the ice making groove is not large, solid ice is prevented from forming large blocks in a manual stirring or mechanical stirring mode, the large solid ice blocks are broken in time, ice particles are increased in the stirring process, accordingly, the ice slush is formed gradually, meanwhile, partial ice blocks which are not broken are mixed in the ice slush, and the effect of increasing friction to a certain degree can also be achieved. The manual or mechanical stirring is not shown, because in this patent, these stirring methods are for better forming the ice slush, and the function can be realized by the existing stirring structure, so the structure schematic diagram is not given. The prepared ice sand has certain particle granularity and particle morphology, although part of ice cubes are mixed inside, the effect of increasing friction is achieved, but for better meeting the requirements in the cleaning process of agricultural products, a part of irregular large-volume ice cones need to be prepared through an ice cone mold, the mold for preparing the ice cones is common, different ice making molds can be designed according to actual needs, such as a triangular cone type, a tetrahedral type, a polyhedral type and the like, as shown in fig. 4, the prepared ice edge angle is guaranteed to be clear, and the friction and cleaning effect can be further enhanced. After the preparation of the smoothie and the ice cone is finished, partial water can be added into the ice making groove to enhance the fluidity of the smoothie, so that the smoothie is transported to the smoothie cleaning pool 57 through pipeline transportation to clean subsequent agricultural products.

In some embodiments, the cleaning device comprises a smoothie cleaning pool 57, a smoothie cleaning pool bottom motor 82, a smoothie cleaning pool bottom motor frequency converter 83, a smoothie cleaning pool inner barrel 87, a smoothie cleaning pool inner barrel interlayer 88, a smoothie cleaning pool outer barrel 89, a smoothie cleaning pool outer shell wall surface 90 and a smoothie cleaning pool bottom motor rotating shaft 91, wherein the smoothie cleaning pool outer barrel 89 is arranged inside the smoothie cleaning pool 57, the smoothie cleaning pool inner barrel 87 is arranged inside the smoothie cleaning pool outer barrel 89, the smoothie cleaning pool inner barrel 87 and the smoothie cleaning pool outer barrel 89 are arranged between each other with the smoothie cleaning pool inner barrel 88, the smoothie cleaning pool inner barrel 87 is internally provided with a mixture of agricultural products 103, smoothie and ice cones 102, the bottom of the smoothie cleaning pool inner barrel 87 is provided with a smoothie cleaning pool bottom motor 82 for driving the smoothie cleaning pool inner barrel 87 to rotate, the smo, the ice and sand cleaning tank 57 is connected with the ice and water mixed liquid conveying pipeline 60, the sediment of the inner ice and sand cleaning tank 87 is discharged to the outer side of the ice and sand cleaning tank 57 through the sediment discharge pipe 80 at the bottom of the ice and sand cleaning tank, the sediment discharge pipe 80 at the bottom of the ice and sand cleaning tank is provided with the sediment discharge pipeline stop valve 81 at the bottom of the ice and sand cleaning tank, the inner ice and sand cleaning tank 87 passes through the hot air circulation sensible heat recovery device through the ice and water mixed liquid outlet pipeline 42 of the ice and sand cleaning tank and then is connected with the sewage treatment recycling device, and the inner ice and sand cleaning tank 87 is connected with the hot air circulation sensible heat recovery device through the agricultural product. The inner barrel 87 of the ice sand cleaning tank is provided with a screen hole 100 on the wall surface of the inner barrel of the cleaning tank and a bulge 99 on the wall surface of the inner barrel of the cleaning tank. The sediment discharge pipe 80 at the bottom of the ice and sand cleaning pool is also connected with an ice and sand cleaning pool bottom sediment discharge pipeline valve 56, the ice and sand cleaning pool ice and water mixed liquid outlet pipeline 42 is connected with an ice and sand cleaning pool ice and water mixed liquid outlet pipeline valve 84, an ice and sand cleaning pool bottom motor 82 is connected with an inner bucket 87 of the ice and sand cleaning pool through a motor rotating shaft 91 at the bottom of the ice and sand cleaning pool, an ice and water mixed liquid outlet pipeline stop valve 85 of the ice and sand cleaning pool is connected on the ice and water mixed liquid outlet pipeline 42 of the ice and sand cleaning pool, sediment mixed liquid 86 at the bottom of an inner bucket and an outer bucket of the ice and sand cleaning pool is left after cleaning, an ice and water mixed liquid conveying pipeline 60 is connected with an ice and water mixed liquid conveying pipeline valve 59, the ice and water mixed liquid conveying pipeline 60 is connected at an ice and sand cleaning pool ice and water mixed liquid inlet 58 on the ice, the outlet pipeline 42 of the ice-water mixed liquid in the ice-sand cleaning pool is connected with the outlet 41 of the ice-water mixed liquid in the ice-sand cleaning pool 57. The main functions are controllable ice and sand cleaning, sand and sand separation and ice and water separation.

In some embodiments, the sewage treatment recycling device comprises a water reservoir 69, a filtering tank 73 and a sedimentation tank 75, wherein the sedimentation tank 75 is connected with the ice-water mixed liquid outlet pipeline 42 of the ice-sand cleaning tank through the sedimentation tank inlet pipeline 54, the filtering tank 73 is connected with the sedimentation tank 75 through a sedimentation tank treated water outlet pipeline 74, the water reservoir 69 is connected with the filtering tank 73 through a filtering tank treated water outlet pipeline 70, and the water reservoir 69 is connected with the ice making tank transport water pipeline 64. The sedimentation tank inlet pipe 54 is connected to the sedimentation tank inlet 55 of the sedimentation tank 75, the sedimentation tank treated water outlet pipe 74 is connected to the sedimentation tank treated water outlet 77 of the sedimentation tank 75, the sedimentation tank treated water outlet pipe 74 is connected to the filtration tank treated water inlet 76 of the filtration tank 73, the filtration tank treated water outlet pipe 70 is connected to the filtration tank treated water outlet 72 of the filtration tank 73, the filtration tank treated water outlet pipe 70 is connected to the reservoir treated water inlet 71 of the reservoir 69, and the ice-making bath transport water pipe 64 is connected to the reservoir transport water outlet 68 of the reservoir 69.

In some embodiments, the ice making tank transport water pipe 64 is provided with an ice making tank transport water pipe first valve 65 and an ice making tank transport water pipe second valve 67, and the ice making tank transport water pipe water pump 66 is arranged between the ice making tank transport water pipe first valve 65 and the ice making tank transport water pipe second valve 67.

In some embodiments, the drying apparatus includes a drying box 28, the drying box 28 includes a drying box air distribution pipe 92, drying box sieve holes 93, a drying box storage plate 94, a drying box vertical support 95, a drying box bottom water outlet 96, a drying box horizontal support 97 and drying box air distribution pipe air holes 98, the drying box vertical support 95 is provided with a plurality of layers of drying box storage plates 94, the drying box storage plate 94 is provided with a plurality of drying box sieve holes 93, the top of the drying box vertical support 95 is provided with a drying box air distribution pipe 92, the drying box air distribution pipe 92 is provided with drying box air distribution pipe air holes 98, the bottom of the drying box vertical support 95 is provided with a drying box horizontal support 97, the drying box horizontal support 97 is provided with a drying box bottom water outlet 96, the drying box air distribution pipe 92 is connected with a condenser dry and hot air supply pipeline 10 through a drying box dry and hot air inlet valve 15, the drying box 28 is connected to a drying box inlet agricultural product transport duct 30, and the drying box 28 is connected to a heated air circulation sensible heat recovery device through a drying box hot and humid air outlet duct 31. A dry box inlet produce transport duct 30 is connected to the dry box produce inlet 29 of the dry box 28, a dry box hot dry air inlet valve 15 is connected to the dry box hot dry air inlet 16 of the dry box 28, and a dry box hot humid air outlet duct 31 is connected to the dry box hot humid air outlet 27 of the dry box 28. The main function is to carry out high-efficiency dehumidification and drying on agricultural products.

In some embodiments, the apparatus for recovering sensible heat by hot air circulation comprises an air storage box 20, an induced draft fan 46, a dividing wall type dehumidifier 51 and a multipoint balance heat exchanger 101, wherein the air storage box 20 is connected with the middle part of a dry hot air supply pipeline 10 of a condenser through an air storage box first air inlet valve 17, the air storage box 20 is connected with the middle part of a dry hot air supply pipeline 8 of the condenser through an air storage box outlet valve 22, the air storage box 20 is connected with a dry hot air outlet pipeline 34 of the multipoint balance heat exchanger through an air storage box second air inlet pipeline 25, an air storage box second air inlet valve 26 is arranged on the air storage box second air inlet pipeline 25, the upper end of the dry hot air outlet pipeline 34 of the multipoint balance heat exchanger is connected with the dry hot air supply pipeline 8 of the condenser through a multipoint balance heat exchanger dry hot air outlet pipeline valve 106, the lower end of the multipoint balance heat exchanger, the multipoint balance heat exchanger 101 is connected with an induced draft fan 46 through a multipoint balance heat exchanger dry cold air inlet pipeline 39, the induced draft fan 46 is connected with one end of an induced draft fan inlet pipeline 48, the other end of the induced draft fan inlet pipeline 48 passes through the interior of a dividing wall type dehumidifier 51 and then is connected with one end of a multipoint balance heat exchanger wet hot air outlet pipeline 44, the other end of the multipoint balance heat exchanger wet hot air outlet pipeline 44 passes through the interior of the multipoint balance heat exchanger 101 and is connected with a drying box wet hot air outlet pipeline 31, a sedimentation tank inlet pipeline 54 passes through the dividing wall type dehumidifier 51 and then is connected with an ice and water mixed liquid outlet pipeline 42 of an ice and sand cleaning tank, a multipoint balance heat exchanger dry cold air inlet pipeline valve 40 is arranged on the multipoint balance heat exchanger dry cold air inlet pipeline 39, and a supplementary air second air inlet pipeline 105 is arranged on the induced draft fan, a second air inlet pipe valve 104 is arranged on the second air inlet pipe 105 for supplementary air, and the second air inlet pipe 105 for supplementary air is arranged between the induced draft fan 46 and the dividing wall type dehumidifier 51. The hot and humid air outlet duct 37 and the first supplementary air inlet duct 79 are provided on the multipoint balance heat exchanger hot and humid air outlet duct 44, the hot and humid air outlet duct 37 is provided with the hot and humid air outlet duct valve 36 and the first supplementary air inlet duct 79, the first supplementary air inlet duct 79 is provided with the first supplementary air inlet duct valve 78, the hot and humid air outlet duct 37 is provided between the first supplementary air inlet duct 79 and the multipoint balance heat exchanger 101, and the first supplementary air inlet duct 79 is provided between the dividing wall type dehumidifier 51 and the hot and humid air outlet duct 37. A first air inlet valve 17 of the air storage box is connected with a first air inlet pipe port 18 of the air storage box of the dry and hot air supply pipe 10 of the condenser, the first air inlet valve 17 of the air storage box is connected with a first air inlet port 19 of the air storage box 20 of the hot air circulation sensible heat recovery device, a second air inlet pipe 25 of the air storage box is connected with a second air inlet port 21 of the air storage box 20 of the hot air circulation sensible heat recovery device, an air outlet valve 22 of the air storage box is connected with an air outlet port 23 of the air storage box 20 of the hot air circulation sensible heat recovery device, the air outlet valve 22 of the air storage box is connected with an air outlet pipe port 24 of the air storage box of the air supply pipe 8 of the condenser, a dry and hot air outlet pipe 34 of the multipoint balance heat exchanger is connected with a dry and hot air outlet 35 of the multipoint balance heat exchanger 101, a wet and hot air outlet pipe 31 of the drying box is connected, a multipoint balance heat exchanger dry cold air inlet pipeline 39 is connected at a multipoint balance heat exchanger dry cold air inlet 38 of a multipoint balance heat exchanger 101, a multipoint balance heat exchanger wet hot air outlet pipeline 44 is connected at a multipoint balance heat exchanger wet hot air outlet of the multipoint balance heat exchanger 101, the multipoint balance heat exchanger dry cold air inlet pipeline 39 is connected at an induced draft fan outlet 45 of an induced draft fan 46, the induced draft fan inlet pipeline is connected at an induced draft fan inlet 47 of the induced draft fan 46, the induced draft fan inlet pipeline 48 is connected at a dividing wall type dehumidifier dry cold air outlet 49 of a dividing wall type dehumidifier 51, the multipoint balance heat exchanger wet hot air outlet pipeline 44 is connected at a dividing wall type dehumidifier wet hot air inlet 53 of the dividing wall type dehumidifier 51, an ice and sand cleaning pool ice and water mixed liquid outlet pipeline 42 is connected at a dividing wall type dehumidifier ice and water mixed liquid inlet 50 of the dividing wall dehumidifier, the sedimentation tank inlet pipe 54 is connected to the dividing wall type dehumidifier ice-water mixed liquid outlet 52 of the dividing wall type dehumidifier 51.

In some embodiments, a porous disc 110 is disposed at the bottom of the inner barrel 87 in the ice and sand washing tank, a plurality of disc openings 114 are disposed on the porous disc 110, at least three hinge fastening portions 113 are disposed on the porous disc 110, the hinge fastening portions 113 are connected to the lower end of a connecting hinge 109, the connecting hinge 109 is connected to a column 112 disposed at the opening portion of the inner barrel 87 in the ice and sand washing tank, a pulley block 111 for facilitating the sliding of the connecting hinge 109 is disposed at the opening portion of the inner barrel 87 in the ice and sand washing tank, and a brush 107 for washing agricultural products is disposed in the inner barrel 87 in the ice and sand washing tank. As shown in fig. 9 and fig. 10, a central shaft 108 is provided at the center of the bottom of the inner tub 87 of the ice and sand washing tank, a brush 107 is provided on the central shaft 108, and an inner hollow ring 115 engaged with the brush 107 is provided at the center of the porous disc 110. The hairbrush 107 is arranged on the central shaft 108, mainly for agricultural products with density smaller than that of a mixture of the ice slush and water, the density of the agricultural products is smaller, when the inner barrel 87 in the ice slush cleaning tank rotates, the agricultural products are positioned on the central axis of the inner barrel 87 in the ice slush cleaning tank due to the centrifugal force and the centripetal force, and the ice cones, the ice slush and the like with slightly higher relative density are close to the wall surface of the inner barrel 87 in the ice slush cleaning tank, so that the mode of arranging the hairbrush 107 can effectively clean the agricultural products. The cleaned agricultural products need to be quickly taken out from the inner barrel 87 of the ice sand cleaning tank. At this time, the pulley block 111 needs to be driven to pull the connecting hinge 109 to drive the porous disc 110 to move upwards, and during the period, the smaller-block-diameter ice sand, ice cones, silt and the like can leak from the disc hole 114, and the agricultural products can be always positioned on the porous disc until reaching the bucket hole of the inner bucket 87 in the ice sand cleaning pool, so that the agricultural products can be conveniently taken out. As shown in fig. 11 and 12, the inner wall of the inner tub 87 for washing the smoothie is provided with a brush 107, the brush 107 extends from the opening of the inner tub 87 for washing the smoothie to the bottom of the inner tub 87 for washing the smoothie, and the outer edge of the porous disc 110 is engaged with the brush 107. The brush sets up on bucket 87 inner wall in the pool is washd to the ice sand, mainly for the agricultural product of reply density greater than the density of the mixture of ice sand and water, to this kind of agricultural product, its density is great, when bucket 87 is rotatory in the pool is washd to the ice sand, these agricultural products can be in bucket 87's in the pool is washd to the ice sand lateral wall because of centrifugal force and centripetal force effect, and the central axis position of bucket 87 in the pool is washd to the ice cone that relative density is little a little, ice sand etc. can be close to the ice sand, therefore this kind of mode of arranging brush 107 can effectively wash this kind of agricultural product.

First, the structure of the invention is explained

(1) The heat pump unit is mainly used for preparing ice slush and ice blocks by utilizing the low-temperature environment at one side of the cold end of the evaporator, and preparing hot air flow for drying at higher temperature by utilizing the high-temperature environment at one side of the hot end of the condenser. The present invention is described in one form of heat pump unit and is not intended to represent the only heat pump unit embodiment of the apparatus of the present invention. In the case of occasions with large ice making quantity or when agricultural products needing to be cleaned and dried are more, better ice making effect and heat supply can be realized by increasing the power consumption of a heat pump unit or adopting multi-stage compression, and the normal operation requirement of the agricultural product cleaning-drying integrated equipment based on the heat pump technology is met.

(2) The condenser 5 and the evaporator 62 in the invention are both closed structures, except for necessary pipe connection for conveying heat exchange medium, other openings are not allowed, and outside air is allowed to enter to form interference.

(3) The air blower 4 and the induced draft fan 46 mainly provide power for the air circulation pipeline, wherein the air blower 4 is arranged on one side of the condenser 5 to strengthen the heat exchange of the condenser 5, so that the normal operation flow of the heat pump unit is ensured. The induced draft fan 46 is disposed at an outlet section of the dividing wall type dehumidifier 51, and is used for increasing the air flow velocity and overcoming the internal resistance of the dividing wall type dehumidifier 51, so as to ensure smooth air flow.

(4) The system comprises a condenser air supply pipeline 8, a condenser dry hot air supply pipeline 10, an air storage box first air inlet pipeline 18, an air storage box air outlet pipeline 24, an air storage box second air inlet pipeline 25, a drying box wet hot air outlet pipeline 31, a multipoint balance heat exchanger dry hot air outlet pipeline 34, a multipoint balance heat exchanger dry cold air inlet pipeline 39, an ice and water mixed liquid outlet pipeline 42 of an ice and sand cleaning pool, a multipoint balance heat exchanger wet hot air outlet pipeline 44, an induced draft fan inlet pipeline 48 and an ice and water mixed liquid conveying pipeline 60. These pipelines need to be insulated, and an insulating material is laid on the outer side of the pipelines. On one hand, the cold loss of the corresponding cold pipeline and the existence of excessive condensed water are prevented, on the other hand, the heat loss of the corresponding hot pipeline is reduced, the purposes of better cleaning the ice sand and drying the hot air are achieved, and energy is saved as much as possible.

(5) The system comprises a hot and humid air discharge pipeline 37, a sedimentation tank inlet pipeline 54, an ice making tank transport water pipeline 64, a filter tank treatment water outlet pipeline 70, a sedimentation tank treatment water outlet pipeline 74, a supplementary air first air inlet pipeline 79, a sediment discharge pipeline 80 at the bottom of a frozen sand cleaning tank and a supplementary air second air inlet pipeline 105. This part of pipeline need not carry out heat preservation and handles, on the contrary, to sedimentation tank inlet pipe 54, filtering ponds processing water outlet pipe 70, sedimentation tank processing water outlet pipe 74, more hope carry out the heat transfer between the fluid in these pipelines and the external environment to the rising temperature lets the ice sand in the mixed liquid of ice sand-water-silt take place to melt, thereby can obtain the effect of better silt and separation of water, the subsequent water treatment of being convenient for and recycling.

(6) The dry and hot air inlet valve 15 of the drying box, the first air inlet valve 17 of the air storage box, the air outlet valve 22 of the air storage box, the second air inlet valve 26 of the air storage box, the wet and hot air exhaust pipeline valve 36, the dry and cold air inlet pipeline valve 40 of the multipoint balance heat exchanger, the first air inlet pipeline valve 78 of the supplementary air, the second air inlet pipeline valve 104 of the supplementary air and the dry and hot air outlet pipeline valve 106 of the multipoint balance heat exchanger are adopted in the invention. The valves mainly control the opening and closing of the corresponding pipelines and have corresponding flow regulation functions. The valve is located to ice sand, water, silt, promptly: the ice-water mixed liquid conveying pipeline valve 59, the ice-making groove conveying water pipeline first valve 65, the ice-making groove conveying water pipeline second valve 67, the ice-water mixed liquid outlet pipeline valve 84 of the ice-sand cleaning pool and the sediment discharge pipeline valve 56 at the bottom of the ice-sand cleaning pool. The valve should have both closing and flow control functions, and also, unlike the air-side valve, is required to be corrosion resistant and low temperature resistant. The number and the positions of the valves arranged in the figure are only given as key parts, and the specific number, the type and the arrangement positions of the valves are required to be determined according to actual construction and production requirements.

(7) The air storage box 20 has the main function that at the initial stage of operation of the heat pump unit, the ice sand formed by liquid water in the ice making tank 12 does not completely or does not meet the ice sand cleaning requirement, at the moment, hot air is not dried, the air storage box is switched to a self-circulation flow, a large amount of air is stored in the air storage box 20, the air temperature in the air storage box is increased through the self-circulation flow, a part of air with higher temperature is stored, after the ice sand preparation flow is completed, agricultural products are cleaned, and the large amount of air with higher temperature in the drying flow is released from the air storage box to dry the agricultural products.

(8) The structure of the drying box 28 is shown in fig. 8, which is a multi-layer partition structure. The drying box air distribution pipe 92 is directly connected with the condenser dry hot air supply pipeline 10, and the hot air flow is conveyed and distributed through the drying box air distribution pipe air holes 98 on the surface of the drying box air distribution pipe. The agricultural products 103 to be dried are placed on the upper portion of the drying box storage plate 94, and the strength of the agricultural products 103 is high, so that the agricultural products can bear the quality of the agricultural products without deformation, and the agricultural products are corrosion-resistant. The surface of the cabinet 94 has a plurality of cabinet apertures 93 which are designed to increase the contact area between the produce 103 and the drying air stream and facilitate the dripping and dissipation of moisture from the surface. The vertical support frame 95 of drying cabinet and the horizontal support frame 97 of drying cabinet support the weight of whole drying cabinet, and the requirement to it can be according to the size and the quantity of actual need dry agricultural product, adjusts its height and the interval of drying cabinet storage plate 94 to guarantee furthest's space utilization and drying effect.

(9) The agricultural product transport pipe 30 at the inlet of the drying box may be a belt conveyor, and the washed agricultural products are taken out from the smoothie washing tank 57, placed on the belt conveyor, manually taken out, and placed on the drying box storage plate 94 of the drying box 28 for drying.

(10) The inner barrel 87 in the ice-sand cleaning tank 57 can be rotated by the motor shaft 91 at the bottom of the ice-sand cleaning tank driven by the motor 82 at the bottom of the ice-sand cleaning tank, so that the ice-sand, the ice cone 102 and the agricultural products 103 in the inner barrel are mixed, stirred and rubbed, and the attachments such as silt and the like on the surface of the agricultural products 103 are rapidly removed. Simultaneously under the effect of centrifugal force and gravity, silt can deposit and form the mixed liquid 86 of silt in the inner and outer bucket intermediate layer bottom of the ice-sand washing pond, lie in the ice-sand washing bottom of the pond, wash the bottom of the pond silt discharge tube 80 through the ice-sand and discharge. The attachments such as silt and the like and part of the ice sand can pass through the sieve holes 100 on the wall surface of the inner barrel in the cleaning tank, so that the ice sand is precipitated and the agricultural products are separated from the ice sand, the ice cone and the silt. The main function of the protrusions 99 on the inner wall surface of the inner tub 87 in the ice and sand cleaning tank is to enhance friction and further enhance removal of the attached matter such as silt on the surface of the agricultural products 103. The inner barrel wall surface sieve holes 100 and the inner barrel wall surface bulges 99 are distributed on the side surface and the bottom surface of the inner barrel 87 in the ice sand cleaning tank.

(11) The sewage treatment and recycling device composed of the water reservoir 69, the filtering tank 73, the sedimentation tank 75 and the auxiliary pipelines and valves thereof mainly purifies the sewage after cleaning, mainly performs sedimentation and filtration, and can be solved by the prior art, which will not be described in more detail herein.

(12) The valve 106 of the dry and hot air outlet pipeline of the multipoint balance heat exchanger is arranged at the beginning stage, air backflow during hot air self-circulation is prevented, meanwhile, one flow choice is made in the hot air flowing process, when the hot air stored in the air storage box 20 in the early stage is exhausted, the air in the air storage box 20 can be selected and used, namely, the second air inlet valve 26 of the air storage box is opened or the valve 106 of the dry and hot air outlet pipeline of the multipoint balance heat exchanger is opened, and any valve can be opened independently, and meanwhile, the maintenance of the air storage box 20 is facilitated.

(13) The connecting hinge 109, the porous disc 110, the pulley block 111, the upright post 112, the hinge fixing part 113 and the inner barrel 87 in the ice sand cleaning tank are integrated, and when the inner barrel 87 in the ice sand cleaning tank rotates, the inner barrel can also rotate together. The use of porous disc 110 is depended on the arrangement condition of the brush, when no brush is arranged, the surface of the agricultural product is relatively clean, or carried silt is less, the frictional action of the ice sand, the ice cone and the protrusions 99 on the wall surface of the inner barrel of the cleaning tank can be utilized to easily remove the materials such as the silt attached to the surface, a better cleaning effect is achieved, and at the moment, the porous disc 110 is also relied on to extract the agricultural product from the inner barrel of the ice sand cleaning tank. The brush 107 can increase the friction force, and the brush with moderate hardness is suggested here, so that not only can the soil and other substances on the surface of the agricultural product be cleaned quickly, but also the surface of the agricultural product can not be damaged, and the selling is not influenced. The disk openings 114 of the perforated disk 110 are required to have a diameter smaller than the outer diameter of the agricultural product but larger than the length of the long side of the smoothie, ice cone, etc., so that the agricultural product can be conveniently collected separately without being accompanied by other materials. For different agricultural products, the agricultural products of different types, different qualities and different silt and sludge attachment degrees can be cleaned by replacing different ice sands to clean the inner barrel 87 of the tank. The protruding 99 for the dull polish drum package form of arranging to the barrel internal diameter radial direction of washing tank barrel wall face, its effect can increase the frictional force of agricultural product and the interior barrel wall face of washing tank, realizes the washing of agricultural product further.

(14) The pulley block 111 may be a labor-saving type movable pulley unit, or a fixed pulley block that can easily change the direction of force, or a coupling of the two, and the force required for pulling the connecting hinge 109 to drive the porous disc 110 may be derived from external mechanical force or manual force, which is not limited herein. The upright column 112 is also fixedly connected to the inner barrel 87 of the ice sand cleaning tank, and the main function is to conveniently fold and unfold the connecting hinge 109.

Second, functional description of the invention

The agricultural product cleaning-drying integrated equipment based on the heat pump technology has the advantages of comprehensive functions, reasonable structure, energy conservation, environmental protection, no pollution emission, higher efficiency and better effect, can effectively deal with the links of cleaning, drying and the like in the rough machining process of agricultural products, and has the following main processes for playing the functions:

(1) in the initial stage, the equipment mainly performs an ice making process and a hot air self-circulation process. The first valve 65 and the second valve 67 are opened, and the water pump 66 starts to pump the liquid water from the reservoir 69 and to the ice making tank 12 and the corresponding ice cone molds. The heat pump unit starts to operate, the internal refrigerant is compressed under the action of the compressor 1, the refrigerant circulation is completed, and heat and cold are generated at the condenser 5 and the evaporator 62 respectively. The liquid water in the ice making grooves 12 and the corresponding ice making cone molds absorbs the cold from the evaporator 62, the temperature decreases and the smoothie and ice cone are gradually formed. On one side of the condenser 5, the dry and hot air inlet valve 15 of the drying box, the second air inlet valve 26 of the air storage box and the dry and hot air outlet pipeline valve 106 of the multipoint balance heat exchanger are closed, the first air inlet valve 17 of the air storage box and the air outlet valve 22 of the air storage box are opened, the air blower 4 is opened, a hot air self-circulation flow is carried out, and the air temperature in the air storage box 20 and the related pipelines is continuously increased.

(2) After the preparation of the ice sand and the ice cone is finished, different processes are carried out according to different weather and regional environments.

A. The outdoor air has low temperature and low humidity

The ice-water mixed liquid conveying pipeline valve 59 is opened, the prepared ice sand, the ice cone 102 and part of water are conveyed to the ice sand cleaning tank inner barrel 87 of the ice sand cleaning tank 57 through the ice-water mixed liquid conveying pipeline 60, meanwhile, agricultural products 103 to be cleaned are placed, the ice sand cleaning tank bottom motor 82 controlled by the ice sand cleaning tank bottom motor frequency converter 83 is started, the ice sand cleaning tank inner barrel 87 is driven to rotate through the ice sand cleaning tank bottom motor rotating shaft 91, and the cleaning process of the agricultural products 103 is started. In the agricultural product 103 cleaning process, at smoothie and ice cone 102, the smoothie washs under the frictional action of protruding 99 of bucket wall in the washing pond of bucket wall surface of the internal face of bucket 87 in the pond, attachments such as silt on agricultural product 103 surface are washd down, under centrifugal force and action of gravity, pass and wash bucket wall screen hole 100 in the pond, and distribute in the mixed liquid 86 of bucket intermediate layer bottom silt in the smoothie washs the pond, precipitate at last in the bottom of the outer bucket 89 of smoothie washing pond, open smoothie and wash bottom of the pond silt discharge pipeline stop valve 81, wash bottom of the pond silt discharge pipeline 80 and in time discharge a large amount of silt via the smoothie. During and after the cleaning of the agricultural products 103, the ice-water mixed liquid outlet pipeline stop valve 85 of the ice-sand cleaning tank is opened, and dirty water and part of silt and ice-sand are discharged in time through the ice-water mixed liquid outlet pipeline 42 of the ice-sand cleaning tank.

The dirty water and part of silt, the ice sand passes through the ice-water mixed liquid outlet pipeline 42 of the ice sand cleaning tank, the dividing wall type dehumidifier 51 and the sedimentation tank inlet pipeline 54 to enter the subsequent sedimentation tank 75 and the filter tank 73 for water treatment and impurity separation.

After the agricultural products 103 are cleaned, the agricultural products are taken out from the inner barrel 87 of the ice-sand cleaning tank, most of the ice sand and the ice cones are still positioned in the inner barrel 87 of the ice-sand cleaning tank, and the subsequent agricultural product cleaning is carried out. Transport to drying cabinet 28 through drying cabinet entry agricultural product transport pipe way 30 to according to the size and the quantity of agricultural product, in good time adjust drying cabinet horizontal support frame 97's the height and the interval of drying cabinet storage plate 94, thereby guarantee furthest's space utilization and drying effect, place agricultural product on drying cabinet storage plate 94 wait to dry.

Meanwhile, the first air inlet valve 17 of the air storage box, the first air inlet pipeline valve 78 of the supplementary air and the dry and hot air outlet pipeline valve 106 of the multipoint balance heat exchanger are closed, the dry and hot air inlet valve 15 of the drying box, the air outlet valve 22 of the air storage box, the second air inlet valve 26 of the air storage box, the wet and hot air exhaust pipeline valve 36 of the multipoint balance heat exchanger and the dry and cold air inlet pipeline valve 40 of the drying box and the second air inlet pipeline valve 104 of the supplementary air are opened, air heated by the condenser 5 enters the drying box 28 through the dry and hot air supply pipeline 10 of the condenser under the action of the blower 4, hot air is conveyed and distributed through the air holes 98 of the air distribution pipe of the drying box on the surface of the air distribution pipe 92 of the drying box, and agricultural products 103 placed on the object placing plate 94. A part of the water on the surface of the agricultural products 103 flows into the bottom of the drying box 28 through the drying box sieve holes 93 and is discharged through the water outlet holes 96 at the bottom of the drying box, and a part of the water is taken away by the hot air flow. After the dry hot air flow dries the agricultural products, the dry hot air flow is increased moderately to become wet hot air, and the wet hot air enters the multipoint balance heat exchanger 101 through the drying box wet hot air outlet pipeline 31 to be used for preheating air with lower temperature and lower humidity from the external environment through the supplementary air second air inlet pipeline 105, the induced draft fan inlet pipeline 48 and the multipoint balance heat exchanger dry cold air inlet pipeline 39. The hot humid air is not circulated after passing through the multi-point balance heat exchanger 101 and is discharged to the outdoor environment through the hot humid air discharge duct 37. The air preheated by the hot and humid air, which is originally low in relative humidity, enters the air storage box 20 through the multipoint balance heat exchanger 101 and the second air inlet pipeline 25 of the air storage box, is mixed with the original air with higher temperature in the air storage box 20, and then returns to the condenser 5 through the air outlet pipeline 24 of the air storage box and the air supply pipeline 8 of the condenser to perform the circulation of the next flow.

The agricultural products can be taken out after being dried in the drying box, other processes of the rough treatment link are carried out, and the next batch of agricultural products are cleaned and dried according to the processes.

B. The outdoor air has a low temperature but a slightly high humidity

The cleaning and drying mode of the agricultural products in the flow is the same as that in the A, and the only difference is that: the hot humid air exits the duct valve 36, the make-up air second intake duct valve 104, and the make-up air first intake duct valve 78 are closed, and the air circulating in the duct is always in a circulating state, and is neither discharged to the outside nor sucked from the outside, which can also meet the requirements.

C. The outdoor air has higher temperature and higher humidity

The cleaning and drying mode of the agricultural products in the flow is the same as A, and the only difference is that: the make-up air second inlet line valve 104 is closed and the make-up air first inlet line valve 78 is opened and the position of the make-up air is moved before the dividing wall dehumidifier 51. The purpose of this is to reduce the humidity of the outside air and to obtain a lower humidity air with better drying effect.

D. The outdoor air has a higher temperature but a lower humidity

The cleaning and drying of the agricultural product in this process is the same as in A.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that this invention is not limited to the disclosed forms, but is intended to cover other embodiments, as may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the invention as set forth, either as indicated by the above teachings or as may be learned by the practice of the invention. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An agricultural product washs-dry integration equipment based on heat pump technology which characterized in that: including heat pump set, ice making device, belt cleaning device, drying device, sewage treatment recycles device, heated air circulation sensible heat recovery unit, it is circulating heat pump set's output side with heated air circulation sensible heat recovery unit links to each other, heat pump set's input side is provided with ice making device links to each other, ice making device with belt cleaning device links to each other, belt cleaning device with sewage treatment recycles the device and links to each other, sewage treatment recycles the device with ice making device links to each other, belt cleaning device passes through drying device with heat pump set links to each other, belt cleaning device with pipeline between the sewage treatment recycles the device passes heated air circulation sensible heat recovery unit.

2. The integrated agricultural product washing-drying equipment based on the heat pump technology as claimed in claim 1, wherein: the heat pump unit comprises a compressor (1), an air blower (4), a condenser (5), a throttle valve (14), and an evaporator (62), wherein the output end of the compressor (1) is connected with one end of a heat pump unit refrigerant circulation pipeline (2), the other end of the heat pump unit refrigerant circulation pipeline (2) penetrates through the condenser (5) and the evaporator (62) in sequence, the input end of the compressor (1) is connected with the throttle valve (14), the throttle valve (14) is arranged on the heat pump unit refrigerant circulation pipeline (2), the air blower (4) is arranged on the condenser (5), the evaporator (62) is connected with the ice making device, and the condenser (5) is respectively connected with the hot air circulation sensible heat recovery device through a condenser air supply pipeline (8) and a condenser dry and hot air supply pipeline (10).

3. The integrated agricultural product washing-drying device based on the heat pump technology as claimed in claim 2, wherein: the ice making device comprises an ice making groove (12), the evaporator (62) is laid in the ice making groove (12), the ice making groove (12) is connected with the cleaning device through an ice-water mixed liquid conveying pipeline (60), and the ice making groove (12) is connected with the sewage treatment recycling device through an ice making groove conveying water pipeline (64).

4. The integrated agricultural product washing-drying device based on the heat pump technology as claimed in claim 3, wherein: the cleaning device comprises a smoothie cleaning pool (57), a smoothie cleaning pool bottom motor (82), a smoothie cleaning pool bottom motor frequency converter (83), a smoothie cleaning pool inner barrel (87), a smoothie cleaning pool inner and outer barrel interlayer (88), a smoothie cleaning pool outer barrel (89), a smoothie cleaning pool shell wall surface (90) and a smoothie cleaning pool bottom motor rotating shaft (91), wherein the smoothie cleaning pool outer barrel (89) is arranged inside the smoothie cleaning pool (57), the smoothie cleaning pool inner barrel (87) is arranged inside the smoothie cleaning pool outer barrel (89), the smoothie cleaning pool inner barrel interlayer (88) is arranged between the smoothie cleaning pool inner barrel (87) and the smoothie cleaning pool outer barrel (89), the smoothie cleaning pool inner barrel (87) is internally provided with a mixture of agricultural products (103), smoothie and an ice cone (102), and the bottom of the smoothie cleaning pool inner barrel (87) is provided with a smoothie cleaning pool drive rotation A bottom motor (82) of the washing tank, the bottom motor (82) of the ice sand washing tank is provided with a frequency converter (83) of the bottom motor of the ice sand washing tank, the ice sand cleaning pool (57) is connected with the ice water mixed liquid conveying pipeline (60), the silt of the inner barrel (87) of the ice sand cleaning tank is discharged to the outer side of the ice sand cleaning tank (57) through a silt discharge pipe (80) at the bottom of the ice sand cleaning tank, a sediment discharge pipe (80) at the bottom of the ice sand cleaning tank is provided with a stop valve (81) of a sediment discharge pipeline at the bottom of the ice sand cleaning tank, the inner barrel (87) of the ice-sand cleaning tank passes through the hot air circulation sensible heat recovery device through an ice-water mixed liquid outlet pipeline (42) of the ice-sand cleaning tank and then is connected with the sewage treatment recycling device, the inner barrel (87) of the ice sand cleaning pool is connected with a hot air circulation sensible heat recovery device through an agricultural product conveying pipeline (30) at the inlet of the drying box.

5. The integrated agricultural product washing-drying equipment based on the heat pump technology as claimed in claim 4, wherein: the sewage treatment recycling device comprises a water storage tank (69), a filtering tank (73) and a sedimentation tank (75), wherein the sedimentation tank (75) is connected with an ice-water mixed liquid outlet pipeline (42) of the ice-sand cleaning tank through a sedimentation tank inlet pipeline (54), the filtering tank (73) is connected with the sedimentation tank (75) through a sedimentation tank treatment water outlet pipeline (74), the water storage tank (69) is connected with the filtering tank (73) through a filtering tank treatment water outlet pipeline (70), and the water storage tank (69) is connected with an ice making tank transportation water pipeline (64).

6. The integrated agricultural product washing-drying equipment based on the heat pump technology as claimed in claim 5, wherein: the ice making tank water conveying pipeline (64) is provided with a first ice making tank water conveying pipeline valve (65) and a second ice making tank water conveying pipeline valve (67), and an ice making tank water conveying pipeline water pump (66) is arranged between the first ice making tank water conveying pipeline valve (65) and the second ice making tank water conveying pipeline valve (67).

7. The integrated agricultural product washing-drying equipment based on the heat pump technology as claimed in claim 5, wherein: the drying device comprises a drying box (28), the drying box (28) comprises a drying box air distribution pipe (92), drying box sieve holes (93), a drying box storage plate (94), a drying box vertical support frame (95), drying box bottom water outlet holes (96), a drying box horizontal support frame (97) and drying box air distribution pipe air holes (98), the drying box vertical support frame (95) is provided with a plurality of layers of the drying box storage plate (94), the drying box storage plate (94) is provided with a plurality of drying box sieve holes (93), the top of the drying box vertical support frame (95) is provided with the drying box air distribution pipe (92), the drying box air distribution pipe air holes (98) are arranged on the drying box air distribution pipe (92), the bottom of the drying box vertical support frame (95) is provided with the drying box horizontal support frame (97), the drying box horizontal support frame (97) is provided with the drying box bottom water outlet holes (96), the drying cabinet air distribution pipe (92) pass through drying cabinet dry hot air inlet valve (15) with condenser dry hot air supply line (10) link to each other, drying cabinet (28) with drying cabinet entry agricultural product transport pipe way (30) link to each other, drying cabinet (28) pass through drying cabinet humid hot air outlet pipeline (31) and link to each other with heated air circulation sensible heat recovery unit.

8. The integrated agricultural product washing-drying device based on the heat pump technology as claimed in claim 7, wherein: the hot air circulation sensible heat recovery device comprises an air storage box (20), an induced draft fan (46), a dividing wall type dehumidifier (51) and a multipoint balance heat exchanger (101), wherein the air storage box (20) is connected with the middle part of a condenser dry hot air supply pipeline (10) through an air storage box first air inlet valve (17), the air storage box (20) is connected with the middle part of the condenser air supply pipeline (8) through an air storage box air outlet valve (22), the air storage box (20) is connected with the multipoint balance heat exchanger dry hot air outlet pipeline (34) through an air storage box second air inlet pipeline (25), an air storage box second air inlet valve (26) is arranged on the air storage box second air inlet pipeline (25), the upper end of the multipoint balance heat exchanger dry hot air outlet pipeline (34) is connected with the condenser air supply pipeline (8) through a multipoint balance heat exchanger dry hot air outlet pipeline valve (106), the lower end of a dry and hot air outlet pipeline (34) of the multipoint balance heat exchanger is connected with the multipoint balance heat exchanger (101), the multipoint balance heat exchanger (101) is connected with the induced draft fan (46) through a dry and cold air inlet pipeline (39) of the multipoint balance heat exchanger, the induced draft fan (46) is connected with one end of an induced draft fan inlet pipeline (48), the other end of the induced draft fan inlet pipeline (48) penetrates through the inside of the dividing wall type dehumidifier (51) and then is connected with one end of a wet and hot air outlet pipeline (44) of the multipoint balance heat exchanger, the other end of the wet and hot air outlet pipeline (44) of the multipoint balance heat exchanger penetrates through the inside of the multipoint balance heat exchanger (101) and is connected with a wet and hot air outlet pipeline (31) of a drying box, a sedimentation tank inlet pipeline (54) penetrates through the dividing wall type dehumidifier (51) and then is connected with an ice and water mixed liquid outlet pipeline (42) of the ice and sand cleaning tank, be provided with dry cold air inlet pipeline valve (40) of multiple spot balance heat exchanger on multiple spot balance heat exchanger dry cold air inlet pipeline (39), be provided with supplementary air second admission line (105) on draught fan inlet pipeline (48), be provided with supplementary air second admission line valve (104) on supplementary air second admission line (105), supplementary air second admission line (105) set up draught fan (46) with between dividing wall formula dehumidifier (51).

9. The integrated agricultural product washing-drying device based on the heat pump technology as claimed in claim 8, wherein: the multipoint balance heat exchanger wet and hot air outlet pipeline (44) is provided with a wet and hot air discharge pipeline (37) and a first supplementary air inlet pipeline (79), the wet and hot air discharge pipeline (37) is provided with a wet and hot air discharge pipeline valve (36), the first supplementary air inlet pipeline (79) is provided with a first supplementary air inlet pipeline valve (78), the wet and hot air discharge pipeline (37) is arranged between the first supplementary air inlet pipeline (79) and the multipoint balance heat exchanger (101), and the first supplementary air inlet pipeline (79) is arranged between the dividing wall type dehumidifier (51) and the wet and hot air discharge pipeline (37).

10. The integrated agricultural product washing-drying equipment based on the heat pump technology as claimed in claim 4, wherein: the inner barrel (87) of the ice sand cleaning tank is provided with a screen hole (100) for cleaning the wall surface of the inner barrel of the tank and a bulge (99) for cleaning the wall surface of the inner barrel of the tank, the bottom of the inner barrel (87) of the ice sand cleaning tank is provided with a porous disc (110), the porous disc (110) is provided with a plurality of disc orifices (114), the porous disc (110) is at least provided with three hinge fixing parts (113), the hinge fixing parts (113) are connected with the lower end of a connecting hinge (109), the connecting hinge (109) is connected with a vertical column (112) arranged at the opening part of the inner barrel (87) of the ice sand cleaning tank, the opening part of the inner barrel (87) of the ice sand cleaning tank is provided with a pulley block (111) for facilitating the sliding of the connecting hinge (109), and a brush (107) for cleaning agricultural products is arranged in.