CN210123240U - Evaporator and fruit and vegetable drying system - Google Patents

Evaporator and fruit and vegetable drying system Download PDF

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Publication number
CN210123240U
CN210123240U CN201920519416.2U CN201920519416U CN210123240U CN 210123240 U CN210123240 U CN 210123240U CN 201920519416 U CN201920519416 U CN 201920519416U CN 210123240 U CN210123240 U CN 210123240U
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CN
China
Prior art keywords
dehumidification
air
evaporator
heat exchange
refrigerant
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Expired - Fee Related
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CN201920519416.2U
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Chinese (zh)
Inventor
操瑞兵
岑健
李丽
曾羽丰
刘秋延
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Guangdong Polytechnic Normal University
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Guangdong Polytechnic Normal University
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Abstract

The utility model provides an evaporator and a fruit and vegetable drying system, the fruit and vegetable drying system comprises a drying cavity, a circulation wind path, an air supply mechanism and a heat pump unit, the heat pump unit comprises a refrigerant pipeline, an evaporator, a compressor, a condenser and a throttle valve, the evaporator comprises an evaporator shell, heat exchange plates which are arranged in a layered interval way are arranged in the evaporator shell, a dehumidification channel is formed in the space between the adjacent heat exchange plates, an air outlet of the drying cavity is communicated with the dehumidification channel, a refrigerant circulation tube bundle is arranged on the refrigerant pipeline, the refrigerant circulation tube bundle is inserted in the evaporator shell along the interlayer interval of the adjacent heat exchange plates and transversely penetrates the dehumidification channel, the dehumidification inlet and the dehumidification outlet of the adjacent dehumidification channels are respectively positioned at the two sides of the refrigerant circulation tube bundle in a staggered arrangement, so that the dehumidified and cooled air carries out secondary heat exchange with the hot and humid air entering the adjacent dehumidification channels through the heat exchange plates; and a heating channel in the condenser is respectively communicated with the dehumidification outlet and the air inlet of the drying cavity.

Description

Evaporator and fruit and vegetable drying system
Technical Field
The utility model relates to a dry technical field, concretely relates to evaporimeter and fruit vegetables drying system.
Background
The heat pump unit is widely applied to a drying system, and a common drying system such as a clothes dryer has the advantages of fast drying clothes, no airing and the like, so that the high-level and fast-paced life requirements of people are met.
For example, chinese patent publication No. CN106245291B and No. 2018.10.09 disclose a clothes dryer, and more particularly, a clothes dryer including a cabinet, a drying chamber, a circulation air path, an air blowing mechanism, and a heat pump unit, in which a heat pump of the heat pump unit is formed by connecting a compressor, a condenser, a restrictor, and an evaporator in a circulating manner by a refrigerant pipe to form a refrigeration cycle. The condenser and the evaporator constituting the heat exchanger are disposed in the intermediate air passage of the circulation air passage. The evaporator is disposed upstream of the condenser, and the condenser functions as a heating means for heating air passing through the circulation air duct, and the evaporator functions as a dehumidifying means for cooling and dehumidifying air passing through the circulation air duct.
In the prior art, high humidity air in a drying chamber is introduced into an evaporator through a circulation air path, moisture in the air is liquefied into water drops for dehumidification through cooling of a refrigerant pipe, then the water drops are directly discharged and introduced into a condenser through the circulation air path, the air is heated through the refrigerant pipe to be heated, and finally the hot air is circulated into the drying chamber to dry clothes. However, if the drying system is directly applied to drying fruits and vegetables, the air is dehumidified in the evaporator only through the refrigerant pipe, the contact area between the air and the pipe wall of the refrigerant pipe is limited, the heat exchange efficiency is low, the dehumidification and heating effects are poor, and finally the working efficiency of drying the fruits and vegetables by the whole drying system is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, an object of the utility model is to provide a fruit vegetables drying system to solve among the prior art because the heat exchange efficiency of evaporimeter is low, dehumidification and heating effect are poor, and whole drying system dries the problem that the work efficiency of fruit vegetables is low. Simultaneously the utility model aims at providing a this fruit vegetables drying system's evaporimeter still.
The utility model discloses a fruit vegetables drying system's technical scheme does:
fruit vegetables drying system includes dry chamber, intercommunication air intake and the circulation wind path of air outlet department in dry chamber and concatenates air supply mechanism and heat pump unit on the circulation wind path, heat pump unit includes the refrigerant pipeline and concatenates evaporimeter, compressor, condenser and the choke valve on the refrigerant pipeline, the evaporimeter includes the evaporimeter casing, is equipped with the heat transfer plate that is stratiform interval arrangement in the evaporimeter casing, and the space between the adjacent heat transfer plate forms dehumidification passageway, the air outlet and the dehumidification passageway intercommunication in dry chamber, be equipped with refrigerant circulation tube bank on the refrigerant pipeline, refrigerant circulation tube bank is followed the interval between the layer of adjacent heat transfer plate and is passed through the dehumidification passageway and insert and locate the evaporimeter casing, and the dehumidification import and the export of adjacent dehumidification passageway are located respectively the both sides staggered arrangement of refrigerant circulation tube bank to make through dehumidification refrigerated air carry out the secondary with the hot humid air that gets into in the adjacent dehumidification passageway through the heat transfer plate And (4) heat exchange.
Has the advantages that: the hot and humid air after passing through the refrigerant circulation tube bundle is changed into dry and cold air, and because the air flow directions in the two adjacent dehumidification channels are opposite, the dry and cold air after passing through the refrigerant circulation tube bundle can exchange heat with the hot and humid air in the adjacent channel without passing through the refrigerant circulation tube bundle through the heat exchange plate, namely, the dry and cold air in the dehumidification channel pre-cools the hot and humid air which just enters the dehumidification channel, and similarly, the hot and humid air which just enters the dehumidification channel also pre-heats the dry and cold air in the dehumidification channel. From the perspective of the whole evaporator, the heat exchange area is not limited to the refrigerant circulation tube bundle, and the heat exchange plate is the other part of the heat exchange area, and can perform auxiliary cooling on hot and humid air and auxiliary heating after cooling. The auxiliary cooling effect of the heat exchange plate further utilizes the low temperature of the dry and cold air, the low temperature dry and cold air is prevented from being directly discharged out of the dehumidification channel, the dehumidification effect on the hot and humid air is also improved, and a single refrigerant circulation tube bundle only corresponds to one dehumidification channel, so that the refrigerant can be efficiently and uniformly cooled and dehumidified; correspondingly, the auxiliary heating function of the heat exchange plate ensures that the temperature of the dry and cold air can be raised in time, and the energy of the condenser is indirectly saved. More importantly, the secondary heat exchange between the dry and cold air and the hot and humid air realizes the full utilization of the energy efficiency of the heat pump unit, simultaneously achieves the dual functions of improving the dehumidification effect and the heating effect, and ensures that the drying system has higher working efficiency when drying fruits and vegetables.
Furthermore, in order to increase the refrigeration contact area of hot and humid air in the dehumidification channel, a heat conduction sheet is fixedly connected between the adjacent heat exchange plates, the heat conduction sheet is arranged along the circulation direction of air in the dehumidification channel, and the refrigerant circulation tube bundle penetrates through the heat conduction sheet.
Further, in order to transfer the low temperature of the refrigerant to the heat exchange plates as much as possible, the heat conduction fins are arranged perpendicular to the plate surfaces of the adjacent heat exchange plates.
Furthermore, in order to uniformly cool and dehumidify the hot and humid air entering the dehumidification channel, the refrigerant circulation tube bundles are arranged in a plurality of rows in a vertical plane perpendicular to the air circulation direction in the dehumidification channel, and the refrigerant circulation tube bundles in two adjacent rows are staggered in the vertical direction.
Furthermore, in order to facilitate the butt-joint communication with the circulation air path, a dehumidification inlet inclined plane and a dehumidification outlet inclined plane are arranged on the same side of the heat exchanger shell, which is located on the refrigerant circulation tube bundle, and the dehumidification inlet inclined plane and the dehumidification outlet inclined plane form an included angle with an opening facing the refrigerant circulation tube bundle.
Furthermore, in order to avoid the accumulation of the condensed water in the dehumidification channel and influence the normal circulation of air, a drain pipe for discharging the condensed water is further arranged on the evaporator shell.
The technical proposal of the evaporator of the utility model is that:
the evaporator comprises an evaporator shell and a refrigerant circulation tube bundle, wherein heat exchange plates which are arranged at intervals in a layered mode are arranged in the evaporator shell, a dehumidification channel is formed in a space between every two adjacent heat exchange plates, the refrigerant circulation tube bundle penetrates through the dehumidification channel along the intervals between every two adjacent heat exchange plates and is inserted into the evaporator shell, and a dehumidification inlet and a dehumidification outlet of each adjacent dehumidification channel are respectively located on two sides of the refrigerant circulation tube bundle in a staggered mode so that the dehumidified and cooled air can perform secondary heat exchange with hot humid air entering the adjacent dehumidification channels through the heat exchange plates.
Has the advantages that: the hot and humid air after passing through the refrigerant circulation tube bundle is changed into dry and cold air, and because the air flow directions in the two adjacent dehumidification channels are opposite, the dry and cold air after passing through the refrigerant circulation tube bundle can exchange heat with the hot and humid air in the adjacent channel without passing through the refrigerant circulation tube bundle through the heat exchange plate, namely, the dry and cold air in the dehumidification channel pre-cools the hot and humid air which just enters the dehumidification channel, and similarly, the hot and humid air which just enters the dehumidification channel also pre-heats the dry and cold air in the dehumidification channel. From the perspective of the whole evaporator, the heat exchange area is not limited to the refrigerant circulation tube bundle, and the heat exchange plate is the other part of the heat exchange area, and can perform auxiliary cooling on hot and humid air and auxiliary heating after cooling. The auxiliary cooling effect of the heat exchange plate further utilizes the low temperature of the dry and cold air, the low temperature dry and cold air is prevented from being directly discharged out of the dehumidification channel, the dehumidification effect on the hot and humid air is also improved, and a single refrigerant circulation tube bundle only corresponds to one dehumidification channel, so that the refrigerant can be efficiently and uniformly cooled and dehumidified; correspondingly, the auxiliary heating function of the heat exchange plate ensures that the temperature of the dry and cold air can be raised in time, and the energy of the condenser is indirectly saved. More importantly, the secondary heat exchange between the dry and cold air and the hot and humid air realizes the full utilization of energy efficiency, and simultaneously achieves the dual functions of improving the dehumidification effect and the heating effect.
Furthermore, in order to increase the refrigeration contact area of hot and humid air in the dehumidification channel, a heat conduction sheet is fixedly connected between the adjacent heat exchange plates, the heat conduction sheet is arranged along the circulation direction of air in the dehumidification channel, and the refrigerant circulation tube bundle penetrates through the heat conduction sheet.
Further, in order to transfer the low temperature of the refrigerant to the heat exchange plates as much as possible, the heat conduction fins are arranged perpendicular to the plate surfaces of the adjacent heat exchange plates.
Furthermore, in order to uniformly cool and dehumidify the hot and humid air entering the dehumidification channel, the refrigerant circulation tube bundles are arranged in a plurality of rows in a vertical plane perpendicular to the air circulation direction in the dehumidification channel, and the refrigerant circulation tube bundles in two adjacent rows are staggered in the vertical direction.
Drawings
FIG. 1 is a schematic diagram of the operation of the embodiment 1 of the fruit and vegetable drying system of the present invention;
fig. 2 is a schematic perspective view of an evaporator in embodiment 1 of the fruit and vegetable drying system of the present invention;
FIG. 3 is a schematic right-side view of FIG. 2;
FIG. 4 is a schematic front view of FIG. 2;
FIG. 5 is a schematic view of the circulation of air in the evaporator in embodiment 1 of the fruit and vegetable drying system of the present invention;
fig. 6 is a vertical sectional view perpendicular to the air circulation direction of the evaporator in embodiment 2 of the fruit and vegetable drying system of the present invention.
In the figure: 1-drying chamber, 2-circulating air path, 3-fan, 4-evaporator, 40-evaporator shell, 41-dehumidification inlet inclined plane, 410-dehumidification inlet, 42-dehumidification outlet inclined plane, 420-dehumidification outlet, 43-refrigerant circulation tube bundle, 44-heat exchange flat plate, 45-corrugated plate, 47-heat conduction sheet, 5-compressor, 6-condenser, 7-throttle valve, 8-refrigerant pipeline, a 1-dry hot air, a 2-hot humid air, a 3-dry cold air, b 1-low pressure gaseous refrigerant, b 2-high pressure gaseous refrigerant, b 3-liquid refrigerant and c-condensed water.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The utility model discloses a fruit vegetables drying system's embodiment 1, as shown in fig. 1 to 5, fruit vegetables drying system includes dry chamber 1, the intercommunication is at the air intake of dry chamber 1 and the circulation wind path 2 of air outlet department, and concatenate fan 3 and the heat pump unit on circulation wind path 2, the heat pump unit includes refrigerant pipeline 8, and concatenate evaporimeter 4 on refrigerant pipeline 8, compressor 5, condenser 6 and choke valve 7, evaporimeter 4 concatenates on the circulation wind path 2 that is located dry chamber 1 low reaches, cool off and dehumidify to the air outlet exhaust hot humid air a2 from dry chamber 1. Condenser 6 concatenates and lies in the downstream position of evaporimeter 4 on circulating air path 2, the dehumidification export 420 of evaporimeter 4 and the heating import intercommunication of condenser 6, the heating export of condenser 6 and the air intake intercommunication of dry chamber 1 to in getting into dry chamber 1 after heating dry and cold air a3 formation dry and hot air a1, dry and hot air a1 carries out the wind-heat dehumidification to moisture-containing fruit vegetables in dry chamber 1, thereby the circulation through the air is taken away the moisture in the fruit vegetables and is realized air-drying the fruit vegetables fast. The fan 3 is arranged at the downstream position of a heating outlet of the circulating air path 2, dry and hot air is directly blown into the drying cavity 1 through the fan 3, the sufficiency of air supply power is ensured, the long-term contact with high-humidity gas is avoided, and the working stability and the service life of the fan 3 are ensured.
In the heat pump unit, a compressor 5 is connected in series to a refrigerant line 8 through which refrigerant flows from an evaporator 4 to a condenser 6, and a throttle valve 7 is connected in series to a refrigerant line 8 through which refrigerant flows from the condenser 6 back to the evaporator 4. When the refrigerant flows through the evaporator 4, the refrigerant is gasified from liquid state to low-pressure gas state, meanwhile, the refrigerant absorbs heat from the hot humid air a2 through the pipe wall, and the moisture in the hot humid air a2 is liquefied into condensed water c when meeting the pipe wall of the refrigerant circulating pipe bundle 43, thereby achieving the effect of cooling and dehumidifying the hot humid air a 2; the low-pressure gaseous refrigerant b1 is pressurized by the compressor 5 to form high-pressure gaseous refrigerant b2, the high-pressure gaseous refrigerant b2 is liquefied from high-pressure gas to liquid when flowing through the condenser 6, and meanwhile, the refrigerant releases heat to the dry and cold air a3 through the pipe wall, so that the effect of heating and warming the dry and cold air a3 is achieved; the liquid refrigerant b3 is pressurized by the throttle valve 7 and circulated again to the evaporator 4.
The evaporator 4 comprises an evaporator shell 40, wherein heat exchange flat plates 44 are arranged in the evaporator shell 40 at intervals in a layered manner, and spaces between adjacent heat exchange flat plates 44 form dehumidification channels. The heat exchange flat plates 44 constitute heat exchange plates for performing secondary heat exchange between the cooled and dehumidified air and the hot and humid air in the adjacent dehumidification passage. The refrigerant pipe 8 is provided with a refrigerant circulation tube bundle 43, and the refrigerant circulation tube bundle 43 is inserted in the evaporator shell 40 along the interval between the adjacent heat exchange flat plates 44 and across the dehumidification passage. In this embodiment, refrigerant circulation tube bank 43 is two rows and arranges in the vertical plane of circulation of air direction in the perpendicular to dehumidification passageway, and two adjacent rows of refrigerant circulation tube bank 43 staggers along vertical direction, has guaranteed to carry out even cooling dehumidification to hot humid air a2 who gets into in the dehumidification passageway, has improved dehumidification efficiency. In other embodiments, the refrigerant flow tube bundles may be further arranged in three rows in a vertical plane perpendicular to the air circulation direction in the dehumidification channel, and the arrangement of the plurality of rows of refrigerant flow tube bundles can further improve the cooling and dehumidification effects.
Still fixedly connected with conducting strip 47 between adjacent heat transfer flat plate 44, conducting strip 47 arranges along the circulation direction of air in the dehumidification passageway, and refrigerant circulation tube bank 43 runs through conducting strip 47, and conducting strip 47 is perpendicular to the face of adjacent heat transfer flat plate 44 and arranges. Refrigerant circulation tube bank 43 runs through conducting strip 47, make conducting strip 47 itself become to the refrigerated refrigeration piece of hot humid air a2, conducting strip 47 is connected with adjacent heat transfer flat board 44 moreover, make the low temperature of refrigerant circulation tube bank 43 transmit to heat transfer flat board 44 through conducting strip 47, transmit the low temperature of refrigerant to heat transfer flat board 44 as far as possible, further increased the refrigeration area of contact of the hot humid air in the dehumidification passageway, the cooling dehumidification effect of evaporimeter 4 has been promoted on the whole.
The evaporator case 40 has a hollow octagonal prism shape, and the inclined surface between the front side surface and the right side surface and the inclined surface between the front side surface and the left side surface are respectively a dehumidification outlet inclined surface 42, and the inclined surface between the rear side surface and the right side surface and the inclined surface between the rear side surface and the left side surface are respectively a dehumidification inlet inclined surface 41. The included angle of the opening towards the refrigerant circulation tube bundle 43 is formed by the dehumidification inlet inclined plane 41 and the dehumidification outlet inclined plane 42 which are positioned on the left side or the right side, the dehumidification inlet 410 is arranged on the dehumidification inlet inclined plane 41 at an upper-lower interval, the dehumidification outlet 420 is arranged on the dehumidification outlet inclined plane 42 at an upper-lower interval, and the dehumidification inlets 410 of the adjacent dehumidification channels are positioned on two sides of the refrigerant circulation tube bundle 43 in a staggered arrangement mode. The dehumidifying inlets 410 and the dehumidifying outlets 420 are arranged in a staggered manner, so that the dehumidifying air ducts are conveniently in butt joint communication with the circulation air duct 2.
Hot and humid air a2 is introduced into the dehumidification channel from the dehumidification inlet 410, the hot and humid air a2 exchanges heat with the refrigerant through the tube wall when flowing through the refrigerant circulation tube bundle 43, moisture in the hot and humid air a2 is cooled into condensed water c, and the hot and humid air a2 becomes dry and cold air a3 after passing through the refrigerant circulation tube bundle 43. Because the air flow directions in the two adjacent dehumidification channels are opposite, the dry and cold air a3 passing through the refrigerant flow tube bundle 43 can also exchange heat with the hot and humid air a2 in the adjacent channel which does not pass through the refrigerant flow tube bundle 43 through the heat exchange flat plates 44, that is, the dry and cold air a3 in the dehumidification channel pre-cools the hot and humid air a2 which just enters the dehumidification channel, and similarly, the hot and humid air a2 which just enters the dehumidification channel also pre-heats the dry and cold air a3 in the dehumidification channel.
From the perspective of the entire evaporator 4, the heat exchange area is not limited to the refrigerant flow tube bundle 43, and the heat exchange plate 44 is another part of the heat exchange area, and can perform auxiliary cooling on the hot humid air a2 and auxiliary heating after cooling. The auxiliary cooling effect of the heat exchange flat plate 44 further utilizes the low temperature of the dry and cold air a3, so that the low temperature dry and cold air a3 is prevented from being directly discharged out of a dehumidification channel, and the dehumidification effect of the hot and humid air a2 is also improved; accordingly, the auxiliary heating function of the heat exchange flat plate 44 ensures that the dry and cold air a3 can be raised in temperature in time, and the heating effect of the condenser 6 is also indirectly improved. More importantly, the secondary heat exchange between the dry and cold air a3 and the hot and humid air a2 realizes the full utilization of the energy efficiency of the heat pump unit, and simultaneously achieves the dual functions of improving the dehumidification effect and the heating effect. Furthermore, the evaporator shell 40 is further provided with a drain pipe, not shown in the figure, the position of each layer of heat exchange flat plate 44 corresponding to the refrigerant flow tube bundle 43 is provided with a drain guide groove extending along the length direction of the refrigerant flow tube bundle 43, the drain guide groove is slightly recessed downwards, the side wall of the evaporator shell 40 is provided with an opening corresponding to the bottom of the drain guide groove, the drain pipe is converged at each opening position, and the drain pipe is connected with each dehumidification channel to discharge the condensed water c outside, so that the condensed water c is prevented from accumulating in the dehumidification channel to influence the normal circulation of air.
The utility model discloses a fruit vegetables drying system's embodiment 2, lie in with embodiment 1's difference, as shown in fig. 6, in order to increase the area that carries out the heat transfer through the heat transfer board between dry cold air and the hot humid air in the evaporimeter, improve heat exchange efficiency and drying quality, the heat transfer is dull and stereotyped can be for the transversal buckled plate 45 of personally submitting unsmooth undulation, the direction of circulation of air in the undulant extending direction perpendicular to dehumidification passageway of buckled plate 45, ensure the smooth and easy nature of circulation of air in increase heat transfer area.
The utility model discloses a fruit vegetables drying system's embodiment 3, lie in with embodiment 1's difference, under the prerequisite that satisfies the dehumidification effect, can save and set up the conducting strip in the dehumidification passageway, and the pipe wall through refrigerant circulation tube bank is direct to hot humid air cooling, has simplified the inner structure of evaporimeter. In other embodiments, the refrigerant flow tube bundle extends through the heat conducting fins, and the heat conducting fins are arranged separately from the adjacent heat exchange flat plates.
The utility model discloses a concrete embodiment of evaporimeter, with the utility model discloses a each concrete embodiment of evaporimeter is the same among fruit vegetables drying system's the embodiment, no longer gives unnecessary details here.

Claims (10)

1. A fruit and vegetable drying system comprises a drying cavity, a circulating air path communicated with an air inlet and an air outlet of the drying cavity, and an air supply mechanism and a heat pump unit which are serially connected on the circulating air path, wherein the heat pump unit comprises a refrigerant pipeline, an evaporator, a compressor, a condenser and a throttle valve which are serially connected on the refrigerant pipeline, and the fruit and vegetable drying system is characterized in that the evaporator comprises an evaporator shell, heat exchange plates which are arranged at intervals in a layered mode are arranged in the evaporator shell, a dehumidification channel is formed in the space between every two adjacent heat exchange plates, the air outlet of the drying cavity is communicated with the dehumidification channel, a refrigerant circulation tube bundle is arranged on the refrigerant pipeline, the refrigerant circulation tube bundle is inserted in the evaporator shell along the dehumidification channel which is arranged at intervals between every two adjacent heat exchange plates and transversely penetrates through the dehumidification channel, and a dehumidification inlet and a dehumidification outlet of, so that the dehumidified and cooled air carries out secondary heat exchange with the hot and humid air entering the adjacent dehumidification channel through the heat exchange plate.
2. The fruit and vegetable drying system of claim 1, wherein a heat conducting fin is fixedly connected between the adjacent heat exchange plates, the heat conducting fin is arranged along the circulation direction of air in the dehumidification channel, and the refrigerant circulation tube bundle penetrates through the heat conducting fin.
3. The fruit and vegetable drying system of claim 2, wherein the heat conducting fins are arranged perpendicular to the plate surfaces of adjacent heat exchange plates.
4. The system of claim 1, 2 or 3, wherein the refrigerant flow tube bundles are arranged in a plurality of rows in a vertical plane perpendicular to the air flow direction in the dehumidification channel, and the refrigerant flow tube bundles in two adjacent rows are vertically staggered.
5. The fruit and vegetable drying system of claim 1, 2 or 3, wherein the evaporator shell is provided with a dehumidification inlet inclined surface and a dehumidification outlet inclined surface on the same side of the refrigerant circulation tube bundle, and the dehumidification inlet inclined surface and the dehumidification outlet inclined surface form an included angle with an opening facing the refrigerant circulation tube bundle.
6. The fruit and vegetable drying system of claim 1, wherein the evaporator shell is further provided with a drain pipe for discharging condensed water.
7. The utility model provides an evaporator, includes evaporator shell and refrigerant circulation tube bank, characterized by, be equipped with the heat transfer board that is stratiform interval arrangement in the evaporator shell, space between the adjacent heat transfer board forms the dehumidification passageway, refrigerant circulation tube bank is along the interval between the layer of adjacent heat transfer board and cross the dehumidification passageway and insert and locate the evaporator shell, and the dehumidification import and the dehumidification export of adjacent dehumidification passageway are located respectively the both sides staggered arrangement of refrigerant circulation tube bank to make through dehumidification refrigerated air carry out the secondary heat transfer with the hot humid air that gets into in the adjacent dehumidification passageway through the heat transfer board.
8. The evaporator as recited in claim 7, wherein a heat conducting fin is further fixedly connected between said adjacent heat exchange plates, said heat conducting fin is disposed along a direction of air circulation in said dehumidification passage, and said refrigerant circulation tube bundle penetrates said heat conducting fin.
9. An evaporator according to claim 8 wherein the heat conducting fins are arranged perpendicularly to the plate surfaces of the adjacent heat exchange plates.
10. An evaporator according to claim 7, 8 or 9 wherein the refrigerant flow tube bundles are arranged in a plurality of rows in a vertical plane perpendicular to the direction of air flow in the dehumidification channel, and the refrigerant flow tube bundles of adjacent two rows are vertically offset.
CN201920519416.2U 2019-04-16 2019-04-16 Evaporator and fruit and vegetable drying system Expired - Fee Related CN210123240U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920519416.2U CN210123240U (en) 2019-04-16 2019-04-16 Evaporator and fruit and vegetable drying system

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Application Number Priority Date Filing Date Title
CN201920519416.2U CN210123240U (en) 2019-04-16 2019-04-16 Evaporator and fruit and vegetable drying system

Publications (1)

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CN210123240U true CN210123240U (en) 2020-03-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110006243A (en) * 2019-04-16 2019-07-12 广东技术师范大学 A kind of evaporator and fruit and vegetable dryness system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110006243A (en) * 2019-04-16 2019-07-12 广东技术师范大学 A kind of evaporator and fruit and vegetable dryness system
CN110006243B (en) * 2019-04-16 2024-04-02 广东技术师范大学 Evaporator and fruit and vegetable drying system

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Granted publication date: 20200303