CN215766117U - Full-automatic steam fruit and vegetable dryer with waste heat recovery function - Google Patents

Full-automatic steam fruit and vegetable dryer with waste heat recovery function Download PDF

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Publication number
CN215766117U
CN215766117U CN202121842116.1U CN202121842116U CN215766117U CN 215766117 U CN215766117 U CN 215766117U CN 202121842116 U CN202121842116 U CN 202121842116U CN 215766117 U CN215766117 U CN 215766117U
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China
Prior art keywords
drying chamber
valve
heat exchanger
main frame
air
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Active
Application number
CN202121842116.1U
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Chinese (zh)
Inventor
陈发温
李敦枝
郭斌
黄锦旺
余养峰
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Fujian Dawei Energy Co ltd
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Fujian Dawei Energy Co ltd
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Priority to CN202121842116.1U priority Critical patent/CN215766117U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85Food storage or conservation, e.g. cooling or drying
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The utility model discloses a full-automatic steam fruit and vegetable dryer with waste heat recovery, which comprises a main frame, wherein the top of the main frame is provided with a hydrophilic aluminum film heat exchanger, two sides of the main frame are respectively provided with a drying chamber, the middle part of the main frame is provided with a heat exchanger, two sides of the heat exchanger are provided with hot air channels, a partition plate is respectively arranged between the hot air channels and the drying chambers and the main frame at two sides, two sides of the top of the heat exchanger are respectively provided with a guide plate, a motor cooling protective cover is arranged below the heat exchanger, and the top of the motor cooling protective cover is provided with a self-adaptive air guide pipeline. Thereby the waste heat generated by drying can be fully utilized.

Description

Full-automatic steam fruit and vegetable dryer with waste heat recovery function
Technical Field
The utility model belongs to the technical field of full-automatic steam fruit and vegetable dryers, and particularly relates to a full-automatic steam fruit and vegetable dryer with waste heat recovery.
Background
Drying is an essential process for producing and processing a plurality of agricultural and sideline products. Traditional drying also consumes a great deal of energy in social production. The product is dried by the sun, the yield cannot be guaranteed, the pollution is avoided, the field is large, and the workload is large. Therefore, efforts have been made to improve the energy efficiency of drying.
In addition, the demands on product quality and production efficiency also have prompted people to continue to improve the quality of dried products and shorten the operating cycle of drying systems. Under the background, the intelligent high-efficiency fruit and vegetable dryer attracts the market with high thermal efficiency and better drying quality, is green, environment-friendly, energy-saving, high-efficiency, safe, reliable, intelligent and full-automatic in operation, and is applied more and more widely.
General drying device is great to energy resource's consumption, and the efficiency of drying is lower, and the cost of drying is higher, and is not intelligent, and the manual operation process is loaded down with trivial details, and the efficiency of production is lower, and current drying-machine does not possess the motor protection casing, need use the motor of more high temperature resistance, and the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the existing defects and provide a full-automatic steam fruit and vegetable dryer with waste heat recovery, so as to solve the problems that the general drying device provided in the background technology has higher consumption of energy resources, lower drying efficiency, higher drying cost and lower production efficiency.
In order to achieve the purpose, the utility model provides the following technical scheme: the full-automatic steam fruit and vegetable dryer with waste heat recovery comprises a main frame, wherein the top of the main frame is provided with a hydrophilic aluminum film heat exchanger, two sides of the main frame are respectively provided with a drying chamber, the middle part of the main frame is provided with a heat exchanger, two sides of the heat exchanger are provided with a hot air channel, the hot air channel and two sides of the drying chamber and the main frame are respectively provided with a partition plate, two sides of the top of the heat exchanger are respectively provided with a guide plate, a motor cooling protective cover is arranged below the heat exchanger, the top of the motor cooling protective cover is provided with a self-adaptive induced air pipeline, the pipe orifice of the self-adaptive induced air pipeline is positioned outside the main frame, the self-adaptive induced air pipeline is communicated with the outside, a circulating fan is arranged below the motor cooling protective cover, and the output end of the bottom of the circulating fan is fixedly connected with a rotating shaft of a fan, the two sides below the circulating fan are provided with main air valves, one side of each main air valve is provided with a drying chamber bottom air valve, the main air valves and the drying chamber bottom air valves are located on the two sides of the hot air channel inside the partition board, the middle part of the partition board where the drying chamber bottom air valve is located is provided with a drying chamber middle air valve, the top of the partition board where the drying chamber bottom air valve is located is provided with a drying chamber top air valve, the drying chamber middle air valve is communicated with the inside of the drying chamber, one side of the drying chamber is provided with a drying chamber door, the upper part of the drying chamber is provided with a moisture exhaust fan, an air inlet valve is obliquely arranged above the drying chamber, the top of the air inlet valve is provided with a fresh air inlet, the inside of the drying chamber is provided with a cart, a diversion groove is arranged below the air inlet valve and located at the top of the main frame, one side of the air inlet valve is communicated with the inside of the drying chamber, the air inlet valve is characterized in that the other side of the air inlet valve is communicated with the middle of the main frame, a water diversion groove is formed in the bottom of the air inlet valve, a heat exchanger cover plate is arranged on one side of the air inlet valve, a steam proportion adjusting valve and a Y-shaped filter are arranged on one side of the heat exchanger, the steam proportion adjusting valve is arranged inside the Y-shaped filter and communicated with the inside of the heat exchanger, a drain valve is arranged on the other side of the heat exchanger, and a bypass valve is arranged on the other side of the drain valve.
Preferably, the two sides of the main frame are provided with four drying chambers, the hot air channels are located between the heat exchanger and the drying chambers, the hot air channels and the heat exchanger are separated by partition plates, and the side edges of the drying chambers are provided with bottom dehumidifying valves.
Preferably, the circulation fan is located at a central position below the main frame.
Preferably, the main air valve and the drying chamber bottom air valve are respectively positioned below the inner parts of the partition plates on two sides of the hot air channel.
Preferably, the number of the fans at the top of the dehumidifying fans and the drying chambers is eight, the dehumidifying fans are respectively distributed in the eight drying chambers on two sides, and a top dehumidifying valve is arranged above the dehumidifying fans.
Preferably, the outside fixedly connected with control box of main frame one side, the control box respectively with heat exchanger, circulating fan, main blast gate, drying chamber bottom blast gate, drying chamber middle part blast gate, hydrofuge fan, control box, steam proportion control valve, trap electric connection.
Preferably, the heat exchanger is located above the middle of the main frame, the circulating fan is located below the middle of the main frame, and the heat exchanger and the circulating fan are far away from each other.
Compared with the prior art, the utility model provides a full-automatic steam fruit and vegetable dryer with waste heat recovery, which has the following beneficial effects:
1. the utility model sucks the water vapor exhausted by the moisture exhaust fan through the arranged air inlet valve, then the water vapor enters the water diversion groove for collection, and the inner part of the drying chamber can be sealed through the arranged heat exchanger cover plate, so that the heat generated by drying can be fully utilized.
2. According to the utility model, through the arrangement of the air valve at the top of the drying chamber, the air valve at the bottom of the drying chamber and the air valve at the middle part of the drying chamber, uniform drying can be carried out, layers do not need to be changed when a cart is pushed between layers in the drying process, manpower can be reduced, heat loss caused by opening a door can be reduced, air can be conveniently fed into a fresh air inlet, and when the circulating fan is communicated with the outside through the arranged self-adaptive air guide pipeline, normal-temperature fresh air can be sucked into the top of the motor and blown to the motor by using negative pressure generated by the circulating fan when the circulating fan operates, so that the cooling protection effect of the motor is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:
FIG. 1 is a schematic diagram of the operation of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic structural view of a front view according to the present invention;
FIG. 4 is a schematic top view of the present invention;
FIG. 5 is a side view of the cooling protective cover of the motor according to the present invention;
fig. 6 is a front view of the cooling protective cover of the motor according to the present invention;
fig. 7 is a schematic structural diagram of a motor cooling protective cover in a top view;
in the figure: 1. a main frame; 101. an air inlet valve; 102. a baffle; 103. a main air valve; 104. an air valve at the bottom of the drying chamber; 105. a hot air passage; 106. a middle air valve of the drying chamber; 107. a drying chamber top air valve; 108. a top moisture drain valve; 109. a bottom moisture drain valve; 110. a partition plate; 2. a heat exchanger; 201. a steam proportion regulating valve; 202. a Y-type filter; 203. a drain valve; 204. a bypass valve; 3. a circulating fan; 301. a motor cooling protective cover; 302. a self-adaptive induced draft duct; 4. a drying chamber; 401. pushing a cart; 402. a drying chamber door; 403. a moisture removal fan; 5. a heat exchanger cover plate; 501. a water diversion groove; 502. a hydrophilic aluminum film heat exchanger; 503. a fresh air inlet; 6. and a control box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: the full-automatic steam fruit and vegetable dryer with waste heat recovery comprises a main frame 1, wherein a hydrophilic aluminum film heat exchanger 502 is arranged at the top of the main frame 1, drying chambers 4 are arranged at two sides of the main frame 1, a heat exchanger 2 is arranged at the middle part of the main frame 1, hot air channels 105 are arranged at two sides of the heat exchanger 2, a partition plate 110 is arranged between each hot air channel 105 and each drying chamber 4 and the main frame 1 at two sides, a guide plate 102 is arranged at two sides of the top of the heat exchanger 2, a motor cooling protective cover 301 is arranged below the heat exchanger 2, a self-adaptive air guide pipeline 302 is arranged at the top of the motor cooling protective cover 301, the pipe orifice of the self-adaptive air guide pipeline 302 is positioned outside the main frame 1, the self-adaptive air guide pipeline 302 is communicated with the outside, and when the self-adaptive air guide pipeline 302 is communicated with the outside, downward suction force can be generated when a circulating fan 3 runs, normal temperature fresh air is sucked into the top of the motor by using the negative pressure generated by the circulating fan 3 and blown to the motor, the motor cooling protection effect is achieved, the circulating fan 3 is arranged below the motor cooling protection cover 301, the output end of the bottom of the circulating fan 3 is fixedly connected with the rotating shaft of the fan, the main air valve 103 is arranged on two sides below the circulating fan 3, the drying chamber bottom air valve 104 is arranged on one side of the main air valve 103, the main air valve 103 and the drying chamber bottom air valve 104 are both positioned inside the partition plate 110 on two sides of the hot air channel 105, the drying chamber middle air valve 106 is arranged in the middle of the partition plate 110 where the drying chamber bottom air valve 104 is positioned, the drying chamber top air valve 107 is arranged on the top of the partition plate 110 where the drying chamber bottom air valve 104 is positioned, the drying chamber top air valve 107, the drying chamber bottom air valve 104 and the drying chamber middle air valve 106 can perform uniform drying, layer replacement is not needed during the drying process between layers of the cart 401, manpower can be reduced, heat loss caused by opening of the door is reduced, the drying chamber middle air valve 106 is communicated with the inside of the drying chamber 4, a drying chamber door 402 is arranged on one side of the drying chamber 4, a dehumidifying fan 403 is arranged above the drying chamber 4, an air inlet valve 101 is obliquely arranged above the drying chamber 4, a fresh air inlet 503 is arranged on the top of the air inlet valve 101, a cart 401 is arranged inside the drying chamber 4, a water diversion groove 501 is arranged below the air inlet valve 101, the water diversion groove 501 is positioned on the top of the main frame 1, one side of the air inlet valve 101 is communicated with the inside of the drying chamber 4, the other side of the air inlet valve 101 is communicated with the middle of the main frame 1, the water diversion groove 501 is arranged at the bottom of the air inlet valve 101, a heat exchanger cover plate 5 is arranged on one side of the air inlet valve 101, the heat exchanger cover plate 5 can seal the inside of the drying chamber 4, so that heat generated by drying can be fully utilized, a steam proportion adjusting valve 201 and a Y-type filter 202 are arranged on one side of the heat exchanger 2, and a steam proportion adjusting valve 201 is arranged inside the Y-type filter 202, steam proportional control valve 201 communicates with the inside of heat exchanger 2, and a drain valve 203 is provided on the other side of heat exchanger 2, and a bypass valve 204 is provided on the other side of drain valve 203.
In the present invention, preferably, two sides of the main frame 1 are provided with four drying chambers 4, the hot air channel 105 is located between the heat exchanger 2 and the drying chambers 4, the hot air channel 105 and the heat exchanger 2 are separated by a partition 110, and the side edges of the drying chambers 4 are provided with bottom humidity exhaust valves 109.
In the present invention, it is preferable that the circulation fan 3 is located at a central position below the main frame 1.
In the present invention, it is preferable that the main damper 103 and the drying chamber bottom damper 104 are respectively located below the inside of the partition 110 on both sides of the hot air passage 105.
In the present invention, preferably, eight fans and eight drying chambers 4 are arranged at the top of the dehumidifying fan 403, the eight dehumidifying fans 403 are respectively distributed inside the eight drying chambers 4 at two sides, the air inlet valve 101 sucks in the water vapor discharged by the dehumidifying fan 403, and then the water vapor enters the water guiding groove 501 for collection, and the top dehumidifying valve 108 is arranged above the dehumidifying fan 403.
In the present invention, preferably, the control box 6 is fixedly connected to the outside of one side of the main frame 1, and the control box 6 is electrically connected to the heat exchanger 2, the circulating fan 3, the main air valve 103, the drying chamber bottom air valve 104, the drying chamber middle air valve 106, the moisture exhaust fan 403, the control box 6, the steam proportion adjusting valve 201, and the drain valve 203, respectively.
In the present invention, preferably, the heat exchanger 2 is located above the middle of the main frame 1, the circulating fan 3 is located below the middle of the main frame 1, and the heat exchanger 2 and the circulating fan 3 are far away from each other.
The working principle and the using process of the utility model are as follows: the cart 401 is filled with materials and pushed into the drying chamber 4, the drying chamber door 402 is closed, the air inlet valve 101 is opened, the main air valve 103 is opened, the steam proportion adjusting valve is opened by the system, after the steam is condensed by the heat exchanger, the condensed water is discharged through the drain valve, the system sets corresponding temperature, temperature difference, humidity, air pressure and time, then the dryer starts to operate, the circulating fan 3 is opened when the system enters the first stage operation, the dehumidifying fan 403 is opened, the drying chamber bottom air valve 104 is opened, the top dehumidifying valve 108 is opened, the drying chamber middle air valve 106 is closed, the drying chamber top air valve 107 is closed, the bottom dehumidifying valve 109 is closed, when the temperature difference, humidity, air pressure and time reach the second stage set value, the circulating fan 3 is opened, the dehumidifying fan 403 is opened, the drying chamber middle air valve 106 is opened, the top dehumidifying valve 108 is opened, the drying chamber bottom air valve 104 is closed, the drying chamber top air valve 107 is closed, closing the bottom dehumidifying valve 109, opening the circulating fan 3, opening the dehumidifying fan 403, opening the bottom air valve 104 of the drying chamber, opening the top dehumidifying valve 108, closing the middle air valve 106 of the drying chamber, closing the top air valve 107 of the drying chamber, closing the bottom dehumidifying valve 109 when the temperature difference, humidity, air pressure and time reach the third stage setting value, opening the circulating fan 3, closing the dehumidifying fan 403, opening the top air valve 107 of the drying chamber, opening the bottom dehumidifying valve 109, closing the top dehumidifying valve 108, closing the bottom air valve 104 of the drying chamber, closing the middle air valve 106 of the drying chamber when the temperature difference, humidity, air pressure and time reach the fifth stage setting value, opening the circulating fan 3, closing the dehumidifying fan 403, opening the bottom air valve 104 of the drying chamber, opening the top dehumidifying valve 108, closing the middle air valve 106 of the drying chamber, closing the top air valve 107 of the drying chamber, closing the bottom dehumidifying valve 109, when the temperature difference, the humidity W, the air pressure and the time reach the set value, the system closes the steam proportion adjusting valve 201, the circulating fan 3 is closed in a delayed manner, the drying chamber door 402 is opened, the cart 401 is pulled out, the drying is completed, the three air valves are opened in turn to facilitate uniform drying, when the self-adaptive air inducing pipeline 302 at the top of the circulating fan 3 is communicated with the outside to generate downward suction force when the circulating fan 3 operates, the normal-temperature fresh air is sucked into the top of the motor and blown to the motor by the negative pressure generated by the circulating fan 3, and the motor cooling protection effect is achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Take waste heat recovery's full-automatic steam fruit vegetables drying-machine, including main frame (1), its characterized in that: the top of the main frame (1) is provided with a hydrophilic aluminum film heat exchanger (502), two sides of the main frame (1) are respectively provided with a drying chamber (4), the middle of the main frame (1) is provided with a heat exchanger (2), two sides of the heat exchanger (2) are provided with hot air channels (105), the hot air channels (105) and the two sides are respectively provided with a partition plate (110) between the drying chamber (4) and the main frame (1), two sides of the top of the heat exchanger (2) are respectively provided with a guide plate (102), a motor cooling protective cover (301) is arranged below the heat exchanger (2), the top of the motor cooling protective cover (301) is provided with a self-adaptive air guide pipeline (302), a pipe orifice of the self-adaptive air guide pipeline (302) is positioned outside the main frame (1), the self-adaptive air guide pipeline (302) is communicated with the outside, a circulating fan (3) is arranged below the motor cooling protective cover (301), the output end of the bottom of the circulating fan (3) is fixedly connected with a rotating shaft of a fan, main air valves (103) are arranged on two sides below the circulating fan (3), a drying chamber bottom air valve (104) is arranged on one side of the main air valve (103), the main air valve (103) and the drying chamber bottom air valve (104) are both positioned inside the partition boards (110) on two sides of the hot air channel (105), a drying chamber middle air valve (106) is arranged in the middle of the partition board (110) where the drying chamber bottom air valve (104) is positioned, a drying chamber top air valve (107) is arranged on the top of the partition board (110) where the drying chamber bottom air valve (104) is positioned, the drying chamber middle air valve (106) is communicated with the inside of the drying chamber (4), a drying chamber door (402) is arranged on one side of the drying chamber (4), and a dehumidifying fan (403) is arranged above the drying chamber (4), an air inlet valve (101) is obliquely arranged above the drying chamber (4), a fresh air inlet (503) is formed in the top of the air inlet valve (101), a cart (401) is arranged inside the drying chamber (4), a water diversion groove (501) is formed in the lower portion of the air inlet valve (101), the water diversion groove (501) is located in the top of the main frame (1), one side of the air inlet valve (101) is communicated with the inside of the drying chamber (4), the other side of the air inlet valve (101) is communicated with the middle of the main frame (1), the water diversion groove (501) is formed in the bottom of the air inlet valve (101), a heat exchanger cover plate (5) is arranged on one side of the air inlet valve (101), a steam proportion adjusting valve (201) and a Y-type filter (202) are arranged on one side of the heat exchanger (2), and a steam proportion adjusting valve (201) is arranged inside the Y-type filter (202), the steam proportion regulating valve (201) is communicated with the inside of the heat exchanger (2), a drain valve (203) is arranged on the other side of the heat exchanger (2), and a bypass valve (204) is arranged on the other side of the drain valve (203).
2. The full-automatic steam fruit and vegetable dryer with waste heat recovery as claimed in claim 1, wherein: the drying device is characterized in that drying chambers (4) are arranged on two sides of the main frame (1), the number of the drying chambers (4) is four, the hot air channel (105) is located between the heat exchanger (2) and the drying chambers (4), the hot air channel (105) and the heat exchanger (2) are separated through partition plates (110), and bottom dehumidifying valves (109) are arranged on the side edges of the drying chambers (4).
3. The full-automatic steam fruit and vegetable dryer with waste heat recovery as claimed in claim 1, wherein: the circulating fan (3) is positioned at the center position below the main frame (1).
4. The full-automatic steam fruit and vegetable dryer with waste heat recovery as claimed in claim 1, wherein: the main air valve (103) and the drying chamber bottom air valve (104) are respectively positioned below the inner parts of the partition plates (110) at two sides of the hot air channel (105).
5. The full-automatic steam fruit and vegetable dryer with waste heat recovery as claimed in claim 1, wherein: the fan at the top of the dehumidifying fan (403) and the drying chamber (4) are respectively provided with eight, eight the dehumidifying fan (403) is respectively distributed at the eight of the two sides inside the drying chamber (4), and a top dehumidifying valve (108) is arranged above the dehumidifying fan (403).
6. The full-automatic steam fruit and vegetable dryer with waste heat recovery as claimed in claim 1, wherein: the external fixed connection of main frame (1) one side has control box (6), control box (6) respectively with heat exchanger (2), circulating fan (3), main air valve (103), drying chamber bottom air valve (104), drying chamber middle part air valve (106), hydrofuge fan (403), control box (6), steam proportion control valve (201), trap (203) electric connection.
7. The full-automatic steam fruit and vegetable dryer with waste heat recovery as claimed in claim 1, wherein: the heat exchanger (2) is located above the middle of the main frame (1), the circulating fan (3) is located below the middle of the main frame (1), and the heat exchanger (2) and the circulating fan (3) are far away from each other.
CN202121842116.1U 2021-08-09 2021-08-09 Full-automatic steam fruit and vegetable dryer with waste heat recovery function Active CN215766117U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121842116.1U CN215766117U (en) 2021-08-09 2021-08-09 Full-automatic steam fruit and vegetable dryer with waste heat recovery function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121842116.1U CN215766117U (en) 2021-08-09 2021-08-09 Full-automatic steam fruit and vegetable dryer with waste heat recovery function

Publications (1)

Publication Number Publication Date
CN215766117U true CN215766117U (en) 2022-02-08

Family

ID=80072815

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121842116.1U Active CN215766117U (en) 2021-08-09 2021-08-09 Full-automatic steam fruit and vegetable dryer with waste heat recovery function

Country Status (1)

Country Link
CN (1) CN215766117U (en)

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