CN115523726A - Drying and dehumidifying device and method based on moisture absorption bag and application thereof - Google Patents
Drying and dehumidifying device and method based on moisture absorption bag and application thereof Download PDFInfo
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- CN115523726A CN115523726A CN202211075289.4A CN202211075289A CN115523726A CN 115523726 A CN115523726 A CN 115523726A CN 202211075289 A CN202211075289 A CN 202211075289A CN 115523726 A CN115523726 A CN 115523726A
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- moisture absorption
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- guide rail
- moisture
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
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- General Engineering & Computer Science (AREA)
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Abstract
The utility model provides a dry dehydrating unit and method based on moisture absorption package, and application thereof, include tray (3) that are used for as the support carrier, the setting is on tray (3) and be used for carrying out moisture absorption processing moisture absorption package (10), the setting is on tray (3) and be used for carrying out dehydration's heating cabinet device to moisture absorption package (10), through tray and moisture absorption package (10), realized carrying out drying process to power equipment, through the heating cabinet device, realized carrying out external heating to moisture absorption package (10), no longer carry out simultaneous heating process to power equipment subassembly and moisture absorption package (1), consequently, the stability ability of power equipment subassembly operational environment temperature has been guaranteed.
Description
Technical Field
The invention relates to a drying and dehumidifying device and method and application thereof, in particular to a drying and dehumidifying device and method based on a moisture absorption bag and application thereof.
Background
Along with the increase of equipment types in the current power industry, the gradual improvement of intelligent equipment and the trend that maintenance-free equipment becomes future, the performance of various products needs to be continuously improved, some equipment has strict requirements on the humidity of the operating environment, equipment such as transformer conservators, intelligent component cabinets and the like are commonly used, the equipment is aged prematurely and even has high failure rate due to overhigh humidity, so that a reliable automatic dehumidifying device is needed to ensure the stable operation of the equipment, in the existing dehumidifying device and method for the wet bag and the application thereof, no dehumidifying device and method based on the dehumidifying bag and the application thereof exist, the common dehumidifying device is provided with a moisture absorber, a heater and the like, but the efficiency is low on the whole, redundant heat can be generated, and the temperature of the working environment of the power component dehumidifying part is influenced,
the invention carries out effective research and research on the technical problem that the power equipment assembly and the moisture absorption bag 1 are simultaneously heated and treated to generate high temperature influence on the power component through the technical characteristics of external heating,
the technical scheme of the invention is made based on the technical book of filing of the present application, which is provided by the applicant at 26.10.2021 and has the function of solving the practical technical problems in the working process, and the technical problems, the technical characteristics and the technical effects existing in the similar patent documents and the background art are obtained through searching.
Disclosure of Invention
The invention aims to provide a drying and dehumidifying device based on a moisture absorption bag,
the object of the invention is a drying and dehumidifying method based on a moisture absorption bag,
the object of the present invention is the use of a desiccant packet based desiccant device and method.
In order to overcome the technical defects, the invention aims to provide a drying and dehumidifying device and method based on a moisture absorption bag and application thereof, so that the stable performance of the working environment temperature of the power equipment component is ensured.
In order to achieve the purpose, the invention adopts the technical scheme that: a drying and dehumidifying device based on moisture absorption bags comprises a tray used as a supporting carrier, the moisture absorption bags arranged on the tray and used for performing moisture absorption treatment, and a heating box device arranged on the tray and used for performing dehydration treatment on the moisture absorption bags.
Due to the design of the tray, the moisture absorption bag and the heating box device, drying treatment on the power equipment is realized through the tray and the moisture absorption bag, external heating on the moisture absorption bag is realized through the heating box device, the technical problem that the power equipment assembly and the moisture absorption bag are subjected to simultaneous heating treatment to generate high-temperature influence on the power component is solved, and therefore the stability of the working environment temperature of the power equipment assembly is ensured.
The invention designs that the tray, the moisture absorption bag and the heating box device are mutually connected in an external heating mode.
The invention designs that a heating box device is connected with a tray and a moisture absorption bag in an external microwave heating mode.
The invention designs that the moisture absorption bag is connected with the tray in a way of being distributed in a pipe wall arrangement or a wall arrangement.
The invention designs that the heating box device comprises a box shell, a microwave heater, a guide rail, a sliding block and a thrust expansion cylinder.
The technical effects of the five technical schemes are as follows: the box-type heating mechanism is additionally mounted, and external box heating is realized.
The invention also provides that the heating box device further comprises a first accessory device, the first accessory device is arranged in the heating box device, and the first accessory device is arranged as a fan device.
The invention designs that the humidity sensor also comprises a second accessory device which is arranged in the moisture absorption bag, the heating box device and the first accessory device, and the second accessory device comprises a vertical plate, a humidity sensing probe and a humidity controller.
The technical effects of the technical scheme are as follows: the integrated installation of other components is realized, and the technical effect of the invention is expanded.
The invention designs that a moisture absorption bag is arranged on a tray, a guide rail, a microwave heater and a fan device are respectively arranged on a box shell, the tray and a vertical plate are respectively arranged on the guide rail, a sliding block is arranged between the tray and the guide rail, a thrust expansion cylinder is arranged between the tray and the box shell, a moisture sensing probe is arranged between the vertical plate and the moisture absorption bag, and a humidity controller is arranged on the thrust expansion cylinder, the moisture sensing probe, the microwave heater and the fan device.
The technical effects of the technical scheme are as follows: the technical scheme of the invention is formed by a box shell, a guide rail, a tray, a sliding block, a thrust expansion cylinder, a vertical plate, a humidity sensing probe, a microwave heater, a fan device, a humidity controller and a moisture absorption bag, and the technical problem of the invention is solved.
The invention designs that the moisture absorption bag comprises a net bag part and a moisture absorption particle part, the net bag part is connected with the moisture absorption particle part in an accommodating mode, the net bag part is connected with the tray in an accumulating mode, the net bag part is woven into a bag-shaped body by a polyphenylene sulfide net, and the moisture absorption particle part is an integrated body of moisture absorption silica gel particles.
The technical effects of the technical scheme are as follows: the drying treatment setting is carried out on the working state of the electric power component, and the drying effect is improved.
The invention designs that a through hole body is arranged at the vertical part of the tray, the lower end face part of the vertical part of the tray part is connected with a sliding block, the lower end of the vertical part of the tray part is connected with a thrust telescopic cylinder, the transverse part of the tray part is connected with a moisture absorption bag in a supporting mode, the through hole body is connected with a moisture sensing probe, the tray part is arranged into a T-shaped frame body, and the through hole body is arranged into a circular hole body.
The technical effects of the technical scheme are as follows: the tray type storage and placement of the moisture absorption bags are realized.
The invention designs that a drainage window body is arranged at the lower part of one side surface of a box part of a box shell, a leakage window body is arranged at the lower part of the other side surface of the box part, the upper part of the inner wall of one side surface of the box part is respectively connected with a microwave heater and a humidity controller, the inner wall of the upper end surface of the box part is connected with a fan device, the inner wall of the lower end surface of the box part is connected with a guide rail, the leakage window body is connected with a tray in a passing way, the box part is arranged into a rectangular box-shaped body, the drainage window body is arranged into a rectangular tubular body, and the leakage window body is arranged into a rectangular hole-shaped body.
The invention designs that the guide rail is arranged into a strip-shaped body, the inner part of the end surface of the lower end of the guide rail is arranged to be connected with a box shell, the inner end of the guide rail is arranged to be connected with a thrust expansion cylinder, the outer end of the guide rail is arranged to be connected with a vertical plate, and the end surface part of the upper end of the guide rail is arranged to be connected with a sliding block in a contact way.
The invention designs that the sliding block is a rectangular seat body, the lower end surface part of the sliding block is connected with the guide rail in a contact mode, and the upper end surface part of the sliding block is connected with the tray.
The invention designs that the telescopic thrust cylinder is arranged as an electric push rod, one end head of the telescopic thrust cylinder is arranged to be connected with the guide rail, the other end head of the telescopic thrust cylinder is arranged to be connected with the tray, and a control port of the telescopic thrust cylinder is arranged to be connected with the humidity controller.
The invention designs that the microwave heater is arranged to comprise a filter conduit, a transformer, a high-voltage rectifier stack and a magnetron, the inner end of the filter conduit is connected with the magnetron, a power supply interface of the magnetron is connected with an output port of the high-voltage rectifier stack, an input port of the high-voltage rectifier stack is connected with an output coil end of the transformer, an input coil end of the transformer is connected with an external power supply through a humidity controller, the filter conduit, a shell of the transformer and a shell of the high-voltage rectifier stack are respectively connected with a box shell, and the outer end port of the filter conduit is arranged to be distributed corresponding to the fan device.
The technical effects of the five technical schemes are as follows: the moisture absorption bag is pushed and pulled to move, and microwave heating setting of the moisture absorption bag is realized.
The invention designs that the vertical plate is a rectangular sheet body, the lower end of the vertical plate is connected with the guide rail, and the upper end of the vertical plate is connected with the humidity sensing probe.
The invention designs that the humidity sensing probe is set as a capacitance humidity measuring probe, the outer end of the humidity sensing probe is set to be connected with the vertical plate, the inner end of the humidity sensing probe is set to be connected with the moisture absorption bag in a sinking mode, and the output port of the humidity sensing probe is set to be connected with the humidity controller.
The invention designs that the humidity controller is set as a PLC controller, an input port of the humidity controller is set to be connected with the humidity sensing probe, and an output port of the humidity controller is respectively set to be connected with the thrust expansion cylinder, the microwave heater and the fan device.
The technical effects of the three technical schemes are as follows: the working state of the moisture absorption bag can be monitored on line.
The invention designs that the fan device comprises blades and a motor, an end shaft of the motor is connected with the blades, a shell of the motor is connected with a box shell, a control interface of the motor is connected with a humidity controller, the blades are distributed corresponding to the microwave heater, and the blades are fan blades.
The technical effects of the technical scheme are as follows: the device realizes the arrangement of quick discharge of the water vapor in the box shell.
The invention designs that a moisture absorption bag, a tray, a guide rail, a sliding block, a thrust telescopic cylinder, a box shell and a microwave heater are distributed in a heating mode of a separate region, the moisture absorption bag, the tray, the guide rail, the sliding block, the thrust telescopic cylinder, the box shell, the microwave heater, a vertical plate, a moisture sensing probe and a humidity controller are distributed in a linkage heating working mode, the moisture absorption bag, the tray, the guide rail, the sliding block, the thrust telescopic cylinder, the box shell, the microwave heater and a fan device are distributed in a uniform microwave energy mode, a motor, a filter guide pipe, a transformer and a high-voltage rectifier stack are respectively connected with a box part, and a disc part is respectively connected with a leakage window body and a mesh bag part.
The invention designs that the moisture absorption bag also comprises a bracket which is arranged on the transverse part of the disc part, the bracket is arranged into an inverted spiral frame, and the middle part of the moisture absorption bag is connected with the bracket in a contact way.
The technical effects of the technical scheme are as follows: the moisture absorption bags are arranged along the spiral line.
The invention designs that the bracket is arranged into a trapezoidal frame and the middle part of the moisture absorption bag is arranged into contact connection with the bracket.
The technical effects of the technical scheme are as follows: the moisture absorption bags are arranged along the upper step body and the lower step body.
The invention designs a drying and dehumidifying method based on a moisture absorption bag, which comprises the following steps: realized carrying out drying process to power equipment by tray and moisture absorption package, realized carrying out external heating to the moisture absorption package by the heating cabinet device, no longer carry out simultaneous heating process to power equipment subassembly and moisture absorption package.
The technical effects of the technical scheme are as follows: the technical characteristics of external heating are highlighted, and the application in the technical field of drying and dehumidifying methods based on moisture absorption bags is introduced.
The invention designs that the method comprises the following steps: connecting the box part with the casing of the electric power equipment, enabling the thrust telescoping cylinder to be in an extension state, enabling the tray part to be pushed out from the box part, stacking the moisture absorption packs on the transverse part of the tray part, placing the moisture sensing probes in the through hole body, placing the moisture sensing probes between the moisture absorption packs, enabling the humidity controller and the moisture sensing probes to be in a working state, absorbing water vapor in the casing of the electric power equipment through the moisture absorption particle part, realizing dehumidification of the electric power equipment, when the moisture sensing probes pick up moisture value signals of the moisture absorption particle part in the moisture absorption packs to reach a set value, inputting signals to the humidity controller by the moisture sensing probes, enabling the thrust telescoping cylinder, the transformer and the motor to be in a contraction state by the humidity controller, driving the tray part to move inwards along the guide rail through the leakage window body, sliding the sliding block slides on the guide rail, and pushing the tray part into the box part, the input coil end of the transformer is communicated with an external power supply through a humidity controller, so that a high-voltage is input to the magnetron by a high-voltage rectifier stack, the magnetron is in a working state to generate microwaves, the motor is in a working state to drive the blades to rotate, the microwaves act on the blades to uniformly distribute microwave energy in the box part, the microwave energy heats the moisture-absorbing particle part to change water in the moisture-absorbing particle part into water vapor which is then escaped and gathered in the box part to recover the performance of the moisture-absorbing particle part, after a set heating time is reached, the thrust telescopic cylinder is in an extension state through the humidity controller to drive the disc part to move outwards along the guide rail through the permeable window body, so that the disc part is pushed out of the box part, the input coil end of the transformer is disconnected with the external power supply through the humidity controller, the motor is in a non-working state, the water vapor in the box part is reduced into water drops along with the temperature, the water in the tank portion is drained through the drainage window body.
The technical effects of the technical scheme are as follows: the drying treatment setting of the moisture absorption bag is realized.
The invention designs that the moisture absorption bags are arranged and distributed in a pipe wall arrangement or a wall arrangement.
The technical effects of the technical scheme are as follows: the drying device has the advantages that the drying device meets the requirements of different types of electric power components, the drying effect on the electric power components on the upper end face is best through the moisture absorption bags distributed on the pipe wall in an arranging mode, and the drying effect on the electric power components on the single side face is best through the moisture absorption bags distributed on the wall in an arranging mode.
The invention designs an application of a drying and dehumidifying device and a method based on a moisture absorption bag in an oil tank and an electric component tank.
The technical effects of the technical scheme are as follows: the transformer on-line monitoring cabinet has a good technical effect.
In the technical scheme, the tray and the moisture absorption bag are basic components and are also necessary technical characteristics of the invention, the box shell, the guide rail, the sliding block, the thrust telescopic cylinder, the vertical plate, the moisture sensing probe, the microwave heater, the fan sheet device and the humidity controller are functional components and are characteristics for realizing other technical effects of the invention, and the designs of the technical characteristics of the mesh bag part, the moisture absorption particle part, the box part, the drainage window body, the leakage window body, the disc part, the through hole body, the filter conduit, the transformer, the high-voltage rectifier stack, the magnetron, the blade and the motor are technical characteristics according with patent laws and implementation rules thereof.
In the technical scheme, the externally-arranged heating tray, the moisture absorption bag and the heating box device are important technical characteristics, and the drying and dehumidifying device and the drying and dehumidifying method based on the moisture absorption bag and the technical field of application thereof have novelty, creativity and practicability, and the terms in the technical scheme can be explained and understood by the patent documents in the technical field.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Figure 1 is a schematic view of the present invention,
figure 2 is a top view of figure 1,
figure 3 is a right side view of figure 1,
figure 4 is a schematic view of the structure of the absorbent packet 10,
figure 5 is a schematic view of the present invention in a dehumidification operation,
the device comprises a box shell-1, a guide rail-2, a tray-3, a sliding block-4, a thrust telescopic cylinder-5, a vertical plate-6, a humidity sensing probe-7, a microwave heater-8, a fan device-9, a humidity controller-91, a moisture absorption bag-10, a mesh bag-101, a moisture absorption particle part-102, a box part-11, a drainage window body-12, a leakage window body-13, a disc part-31, a through hole body-32, a filter conduit-81, a transformer-82, a high-voltage rectifier stack-83, a magnetron-84, a blade-99 and a motor-98.
Detailed Description
Terms such as "having," "including," and "comprising," as used with respect to the present invention, are to be understood as not specifying the presence or addition of one or more other elements or combinations thereof, in accordance with the examination guidelines.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In addition, technical features involved in various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other, and unless otherwise specified, devices and materials used in the following examples are commercially available, and if processing conditions are not explicitly specified, please refer to a purchased product specification or follow a conventional method in the art.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is one of first embodiments of the present invention, which is specifically described with reference to the accompanying drawings and includes a cabinet 1, a guide rail 2, a tray 3, a sliding block 4, a telescopic thrust cylinder 5, a vertical plate 6, a humidity sensing probe 7, a microwave heater 8, a fan device 9, a humidity controller 91, a humidity sensing bag 10, a guide rail 2, a microwave heater 8, a fan device 9, a tray 3, a vertical plate 6, a sliding block 4, a telescopic thrust cylinder 5, a humidity sensing probe 7, a microwave heater 8, and a fan device 9, wherein the sliding block 3, the tray 3, the vertical plate 6, the sliding block 3, the guide rail 2, the telescopic thrust cylinder 5, the humidity sensing probe 7, the fan device 9, the humidity sensing probe 7, the microwave heater 8, and the fan device 9 are disposed on the cabinet 1, the guide rail 2, the thrust cylinder 5, the humidity sensing probe 7, the fan device 7, the microwave heater 8, and the fan device 9 are disposed on the cabinet 1.
In this embodiment, the absorbent bag 10 is configured to include a mesh bag portion 101 and an absorbent particle portion 102, the mesh bag portion 101 is configured to be connected to the absorbent particle portion 102 in a receiving manner, the mesh bag portion 101 is configured to be connected to the tray 3 in a stacking manner, the mesh bag portion 101 is configured to be woven into a bag-like body by a polyphenylene sulfide mesh, and the absorbent particle portion 102 is configured to be an integrated body of absorbent silica gel particles.
Through moisture absorption package 10, formed the support tie point to tray 3, by moisture absorption package 10, realized being connected with tray 3, its technical objective lies in: and the component is used for performing drying treatment as the operating environment of the power equipment.
In the present embodiment, a drain window body 12 is provided in a lower portion of one of side surfaces of the box portion 11 of the cabinet 1 and a penetration window body 13 is provided in a lower portion of the other of side surfaces of the box portion 11, an upper portion of an inner wall of one of side surfaces of the box portion 11 is provided to be coupled with the microwave heater 8 and the humidity controller 91 and an inner wall of an upper end surface of the box portion 11 is provided to be coupled with the fan device 9, an inner wall of a lower end surface of the box portion 11 is provided to be coupled with the guide rail 2 and the penetration window body 13 is provided to be coupled with the tray 3 by pass, the box portion 11 is provided as a rectangular box-like body and the drain window body 12 is provided as a rectangular tube-like body, and the penetration window body 13 is provided as a rectangular hole-like body.
Through case shell 1, formed the support tie point to guide rail 2, tray 3, microwave applicator 8, fan device 9 and humidity controller 91, by case portion 11, realized being connected with guide rail 2, realized being connected with microwave applicator 8, realized being connected with fan device 9, realized being connected with humidity controller 91, by hourglass window body 13, realized being connected with tray 3, by drainage window body 12, realized carrying out the drainage processing to the condensate water in case portion 11, its technical aim at: for serving as a support carrier for the guide rail 2, the microwave heater 8, the fan unit 9 and the humidity controller 91.
In the present embodiment, the guide rail 2 is provided as a bar-shaped body and the inside of the lower end surface of the guide rail 2 is provided to be coupled with the cabinet 1, the inner end of the guide rail 2 is provided to be coupled with the telescopic thrust cylinder 5 and the outer end of the guide rail 2 is provided to be coupled with the vertical plate 6, and the upper end surface of the guide rail 2 is provided to be coupled with the sliding block 4 in a contact manner.
Through guide rail 2, formed the support tie point to case shell 1, sliding block 4, thrust telescoping cylinder 5 and riser 6, by guide rail 2, realized being connected with case shell 1, realized being connected with sliding block 4, realized being connected with thrust telescoping cylinder 5, realized being connected with riser 6, its technical aim at: for acting as one of the parts of the movement of the tray 3 into and out of the cabinet 1.
In the present embodiment, the slide block 4 is provided as a rectangular seat body and the lower end surface portion of the slide block 4 is provided in contact-type engagement with the guide rail 2, and the upper end surface portion of the slide block 4 is provided in engagement with the tray 3.
Through sliding block 4, formed the support tie point to guide rail 2 and tray 3, by sliding block 4, realized being connected with guide rail 2, realized being connected with tray 3, its technical aim at: and is used as the second part for moving the tray 3 into and out of the box 1.
In the present embodiment, the telescopic thrust cylinder 5 is provided as an electric push rod and one end of the telescopic thrust cylinder 5 is provided to be coupled with the guide rail 2, the other end of the telescopic thrust cylinder 5 is provided to be coupled with the tray 3 and a control port of the telescopic thrust cylinder 5 is provided to be connected with the humidity controller 91.
Through thrust telescoping cylinder 5, formed the support tie point to guide rail 2, tray 3 and humidity controller 91, by thrust telescoping cylinder 5, realized being connected with guide rail 2, realized being connected with tray 3, realized being connected with humidity controller 91, its technical aim at: and is used as the second part for moving the tray 3 into and out of the box 1.
In the present embodiment, a through hole body 32 is provided at the vertical portion of the disc portion 31 of the tray 3 and the lower end surface portion of the vertical portion of the disc portion 31 is provided to be coupled with the slide block 4, the lower end portion of the vertical portion of the disc portion 31 is provided to be coupled with the thrust cylinder 5 and the horizontal portion of the disc portion 31 is provided to be coupled with the moisture absorption package 10 in a bracket manner, the through hole body 32 is provided to be coupled with the moisture sensing probe 7 and the disc portion 31 is provided as a t-type bracket, and the through hole body 32 is provided as a circular hole-shaped body.
Through tray 3, formed the support tie point to sliding block 4, thrust telescoping cylinder 5, wet sensing probe 7 and moisture absorption package 10, by the dish portion 31, realized being connected with sliding block 4, realized being connected with thrust telescoping cylinder 5, realized being connected with moisture absorption package 10, by the through-hole body 32, realized being connected with wet sensing probe 7, its technical aim at: for use as a support carrier for the absorbent packet 10.
In this embodiment, the vertical plate 6 is a rectangular plate and the lower end of the vertical plate 6 is coupled to the guide rail 2, and the upper end of the vertical plate 6 is coupled to the humidity sensing probe 7.
Through riser 6, formed the support tie point to guide rail 2 and sense wet probe 7, by riser 6, realized being connected with guide rail 2, realized being connected with sense wet probe 7, its technical aim at: for use as an intermediate member for connecting the wetness sensing probe 7 to the guide rail 2.
In this embodiment, the humidity sensing probe 7 is configured as a capacitance humidity sensing probe and the outer end of the humidity sensing probe 7 is configured to be coupled with the vertical plate 6, the inner end of the humidity sensing probe 7 is configured to be coupled with the moisture absorption bag 10 in a sinking manner, and the output port of the humidity sensing probe 7 is configured to be coupled with the humidity controller 91.
Through feeling wet probe 7, formed the support tie point of counterpoising board 6, humidity controller 91 and moisture absorption package 10, by feeling wet probe 7, realized being connected with riser 6, realized being connected with humidity controller 91, realized being connected with moisture absorption package 10, its technical aim at: for use as a means of picking up a moisture signal within the absorbent packet 10.
In the present embodiment, the microwave heater 8 is configured to include a filter conduit 81, a transformer 82, a high voltage rectifier stack 83 and a magnetron 84, an inner end of the filter conduit 81 is configured to be coupled to the magnetron 84, a power interface of the magnetron 84 is configured to be coupled to an output port of the high voltage rectifier stack 83, an input port of the high voltage rectifier stack 83 is configured to be coupled to an output coil end of the transformer 82, an input coil end of the transformer 82 is configured to be coupled to an external power source through a humidity controller 91, the filter conduit 81, a housing of the transformer 82 and a housing of the high voltage rectifier stack 83 are respectively configured to be coupled to the cabinet 1, and an outer end of the filter conduit 81 is configured to be distributed corresponding to the fan device 9.
Through microwave applicator 8, formed the support tie point to case 1, fan device 9 and humidity controller 91, by filter pipe 81, transformer 82 and high-voltage rectifier 83, realized being connected with case 1, by filter pipe 81, realized being connected with fan device 9, by transformer 82, realized being connected with humidity controller 91, by magnetron 84, realized producing microwave treatment in succession, its technical aim is: for use as a means for heating the absorbent packet 10.
In the present embodiment, the fan device 9 is configured to include a blade 99 and a motor 98, and an end shaft of the motor 98 is configured to be coupled with the blade 99, a housing of the motor 98 is configured to be coupled with the cabinet 1 and a control interface of the motor 98 is configured to be coupled with the humidity controller 91, the blade 99 is configured to be distributed corresponding to the microwave heater 8 and the blade 99 is configured as a fan blade.
Through fan device 9, formed the support tie point to case shell 1, microwave applicator 8 and humidity controller 91, by motor 98, realized being connected with case shell 1, realized being connected with humidity controller 91, by blade 99, realized being connected with microwave applicator 8, its technical aim at: as a means for distributing microwave energy evenly in the enclosure 1.
In the present embodiment, the humidity controller 91 is configured as a PLC controller and the input port of the humidity controller 91 is configured to be connected to the humidity sensing probe 7, and the output ports of the humidity controller 91 are respectively configured to be connected to the telescopic pusher 5, the microwave heater 8 and the fan unit 9.
Through humidity controller 91, formed the support tie point to thrust telescoping cylinder 5, wet sensing probe 7, microwave applicator 8 and fan piece device 9, by humidity controller 91, realized being connected with thrust telescoping cylinder 5, realized being connected with wet sensing probe 7, realized being connected with microwave applicator 8, realized being connected with fan piece device 9, its technical aim at: the microwave heating device is used as a component for performing linkage operation on the thrust telescopic cylinder 5, the microwave heater 8 and the fan blade device 9.
In this embodiment, the moisture absorption bag 10, the tray 3, the guide rail 2, the sliding block 4, the telescopic thrust cylinder 5, the case 1, and the microwave heater 8 are arranged to be distributed in a heating manner in a separate region, the moisture absorption bag 10, the tray 3, the guide rail 2, the sliding block 4, the telescopic thrust cylinder 5, the case 1, the microwave heater 8, the vertical plate 6, the moisture sensing probe 7, and the humidity controller 91 are arranged to be distributed in a linkage heating manner, the moisture absorption bag 10, the tray 3, the guide rail 2, the sliding block 4, the telescopic thrust cylinder 5, the case 1, the microwave heater 8, and the fan device 9 are arranged to be distributed in a uniform microwave energy manner, the motor 98, the filter guide pipe 81, the transformer 82, and the high-voltage rectifier stack 83 are respectively arranged to be connected to the case portion 11, and the disc portion 31 is respectively arranged to be connected to the leakage window body 13 and the mesh bag portion 101.
The invention is further described below with reference to the following examples, which are intended to illustrate the invention but not to further limit it.
A drying and dehumidifying method based on a moisture absorption bag comprises the following steps: the box part 11 is connected with the shell of the electric equipment, the thrust telescopic cylinder 5 is in an extension state, the tray part 31 is pushed out from the box part 11, the moisture absorption packet 10 is stacked on the transverse part of the tray part 31, the moisture sensing probe 7 is placed in the through hole body 32, the moisture sensing probe 7 is placed between the moisture absorption packets 10, the humidity controller 91 and the moisture sensing probe 7 are in a working state, the moisture absorption particle part 102 absorbs the water vapor in the shell of the electric equipment to realize the dehumidification of the electric equipment, when the moisture sensing probe 7 picks up a humidity value signal of the moisture absorption particle part 102 in the moisture absorption packet 10 and reaches a set value, the moisture sensing probe 7 inputs a signal to the humidity controller 91, the humidity controller 91 respectively inputs signals to the thrust telescopic cylinder 5, the transformer 82 and the motor 98 to enable the thrust telescopic cylinder 5 to be in a contraction state, the tray part 31 is driven to move inwards along the guide rail 2 through the penetration window body 13, the sliding block 4 slides on the guide rail 2, the disc part 31 is pushed into the box part 11, the input coil end of the transformer 82 is communicated with an external power supply through the humidity controller 91, so that the high-voltage rectifier stack 83 inputs high-voltage to the magnetron 84, the magnetron 84 is in a working state to generate microwaves, the motor 98 is in a working state to drive the blades 99 to rotate, the microwaves act on the blades 99 to uniformly distribute the microwaves into the box part 11, the microwave energy heats the moisture absorption particle part 102, water in the moisture absorption particle part 102 is changed into water vapor to escape, the water vapor is gathered in the box part 11, the performance of the moisture absorption particle part 102 is recovered, after the set heating time is reached, the thrust telescopic cylinder 5 is in an extension state through the humidity controller 91 to drive the disc part 31 to move outwards along the guide rail 2 through the leakage window body 13, and the disc part 31 is pushed out of the box part 11, the humidity controller 91 disconnects the input coil end of the transformer 82 from the external power supply, the motor 98 is in a non-working state, the water vapor in the tank 11 drops into water drops with the temperature reduction, and the water in the tank 11 is discharged through the drainage window 12.
In this embodiment, the moisture absorption bag 10 is disposed in a tube wall arrangement or a wall arrangement.
The application of a drying and dehumidifying device and method based on a moisture absorption bag in an oil tank and an electric component tank is provided.
A second embodiment of the drying and dehumidifying device based on an absorbent bag, which is described in detail with reference to the accompanying drawings, further comprises a bracket disposed on the transverse portion of the tray portion 31, the bracket is configured as an inverted spiral rack, and the middle portion of the absorbent bag 10 is configured to be in contact connection with the bracket.
The technical purpose is as follows: the oil tank dehumidifying device is used for dehumidifying the oil tank.
A third embodiment of the drying and dehumidifying device based on the moisture absorption bag is specifically described in the third embodiment with reference to the drawings, wherein a support is arranged to be a ladder-shaped frame and the middle part of the moisture absorption bag 10 is arranged to be in contact connection with the support.
The technical purpose is as follows: the system is used for dehumidifying the cabinet with the electric components.
In a second embodiment of the present invention, the tray 3, the moisture-absorbing pack 10 and the heating box means are coupled to each other in an external heating manner.
In this embodiment, the heating box device is connected to the tray 3 and the moisture absorption bag 10 by external microwave heating.
In this embodiment, the moisture-absorbing packet 10 is connected to the tray 3 in a tube wall arrangement or a wall arrangement.
In the present embodiment, the heating box device is configured to include a box housing 1, a microwave heater 8, a guide rail 2, a slide block 4, and a thrust expansion cylinder 5.
In this embodiment, a first attachment device is also included and is provided in the heating box device, the first attachment device being provided as a fan device 9.
In this embodiment, a second attachment device is further included and is disposed in the absorbent bag 10, the heating box device and the first attachment device, and the second attachment device is configured to include the vertical plate 6, the humidity sensing probe 7 and the humidity controller 91.
A second embodiment of the invention is based on the first embodiment,
the second embodiment of the present invention comprises the steps of: realized carrying out drying process to power equipment by tray and moisture absorption package 10, realized carrying out external heating to moisture absorption package 1 by the heating cabinet device, no longer carry out simultaneous heating process to power equipment subassembly and moisture absorption package 1.
A second embodiment of the invention is based on the first embodiment.
The invention has the following characteristics:
1. due to the design of the tray 3, the moisture absorption bag 10 and the heating box device, the drying treatment of the power equipment is realized through the tray and the moisture absorption bag 10, the external heating of the moisture absorption bag 1 is realized through the heating box device, the simultaneous heating treatment of the power equipment assembly and the moisture absorption bag 1 is not carried out, and the stability of the working environment temperature of the power equipment assembly is ensured.
2. Due to the design of the box shell 1, the microwave heater 8, the guide rail 2, the sliding block 4 and the thrust expansion cylinder 5, the arrangement of the microwave heating box with push-pull motion is realized.
3. Due to the design of the fan device 9, the microwave energy is uniformly distributed.
4. Because the vertical plate 6, the humidity sensing probe 7 and the humidity controller 91 are designed, the automatic heating treatment of the moisture absorption bag 10 is realized.
5. Because the structural shape is limited by the numerical range, the numerical range is the technical characteristic of the technical scheme of the invention, and is not the technical characteristic obtained by formula calculation or limited tests, and tests show that the technical characteristic of the numerical range achieves good technical effect.
6. Due to the design of the technical characteristics of the invention, tests show that each performance index of the invention is at least 1.7 times of the existing performance index under the action of the single and mutual combination of the technical characteristics, and the invention has good market value through evaluation.
Still other features associated with the externally heated tray 3, absorbent packet 10 and heater box assembly are one of the embodiments of the present invention, and the features of the above-described embodiments may be combined in any combination, and all possible combinations of features of the above-described embodiments are not described in order to satisfy the requirements of the patent laws, patent practice rules and examination guidelines.
The above embodiments are merely one implementation form of the moisture absorption bag-based drying and dehumidifying device and method, and the application thereof provided by the present invention, and other variations of the solution provided by the present invention, increasing or decreasing the components or steps therein, or applying the present invention to other technical fields close to the present invention, are within the protection scope of the present invention.
Claims (10)
1. A drying and dehumidifying device based on a moisture absorption bag is characterized in that: comprises a tray (3) used as a supporting carrier, a moisture absorption bag (10) arranged on the tray (3) and used for performing moisture absorption treatment, and a heating box device arranged on the tray (3) and used for performing dehydration treatment on the moisture absorption bag (10).
2. The moisture-wicking packet-based desiccant device as recited in claim 1, further comprising: the tray (3), the moisture absorption bag (10) and the heating box device are connected with each other in an external heating mode.
3. The moisture-wicking packet-based desiccant device as recited in claim 2, further comprising: the heating box device is connected with the tray (3) and the moisture absorption bag (10) in an external microwave heating mode.
4. The moisture wicking packet-based desiccant device of claim 1, further comprising: the moisture absorption bag (10) is connected with the tray (3) according to the mode of arrangement and distribution of the pipe wall or the wall.
5. The moisture-wicking packet-based desiccant device as recited in claim 1, further comprising: the heating box device comprises a box shell (1), a microwave heater (8), a guide rail (2), a sliding block (4) and a thrust telescopic cylinder (5),
or, a first attachment device is included and arranged in the heating cabinet device, the first attachment device being arranged as a fan device (9),
or the moisture absorption bag further comprises a second accessory device, the second accessory device is arranged in the moisture absorption bag (10), the heating box device and the first accessory device, and the second accessory device is arranged to comprise a vertical plate (6), a moisture sensing probe (7) and a humidity controller (91).
6. The moisture wicking packet-based desiccant device of claim 5, wherein: the humidity sensing device is characterized in that a moisture absorption bag (10) is arranged on a tray (3), a guide rail (2), a microwave heater (8) and a fan device (9) are respectively arranged on a box shell (1), the tray (3) and a vertical plate (6) are respectively arranged on the guide rail (2), a sliding block (4) is arranged between the tray (3) and the guide rail (2), a thrust expansion cylinder (5) is arranged between the tray (3) and the box shell (1), a humidity sensing probe (7) is arranged between the vertical plate (6) and the moisture absorption bag (10), and a humidity controller (91) is arranged on the thrust expansion cylinder (5), the humidity sensing probe (7), the microwave heater (8) and the fan device (9).
7. The moisture-wicking packet-based desiccant device as recited in claim 6, further comprising: the moisture absorption bag (10) is provided with a mesh bag part (101) and a moisture absorption particle part (102), the mesh bag part (101) is connected with the moisture absorption particle part (102) in an accommodating way, the mesh bag part (101) is connected with the tray (3) in a stacking way, the mesh bag part (101) is a bag-shaped body woven by polyphenylene sulfide mesh, the moisture absorption particle part (102) is an integrated body of moisture absorption silica gel particles,
or, a through hole body (32) is arranged at the vertical part of the disc part (31) of the tray (3), the lower end face part of the vertical part of the disc part (31) is connected with the sliding block (4), the lower end of the vertical part of the disc part (31) is connected with the thrust telescopic cylinder (5), the horizontal part of the disc part (31) is connected with the moisture absorption bag (10) in a supporting way, the through hole body (32) is connected with the moisture sensing probe (7), the disc part (31) is a T-shaped frame body, the through hole body (32) is a circular hole body,
or, a drainage window body (12) is arranged at the lower part of one side surface of a box part (11) of the box shell (1) and a leakage window body (13) is arranged at the lower part of the other side surface of the box part (11), the upper part of the inner wall of one side surface of the box part (11) is respectively connected with a microwave heater (8) and a humidity controller (91) and the inner wall of the upper end surface of the box part (11) is connected with a fan device (9), the inner wall of the lower end surface of the box part (11) is connected with a guide rail (2) and the leakage window body (13) is connected with a tray (3) in a passing mode, the box part (11) is arranged into a rectangular box body, the drainage window body (12) is arranged into a rectangular tube body, the leakage window body (13) is arranged into a rectangular hole,
or the guide rail (2) is arranged to be a strip-shaped body, the inner part of the end surface of the lower end of the guide rail (2) is arranged to be connected with the box shell (1), the inner end of the guide rail (2) is arranged to be connected with the thrust expansion cylinder (5), the outer end of the guide rail (2) is arranged to be connected with the vertical plate (6), the end surface part of the upper end of the guide rail (2) is arranged to be connected with the sliding block (4) in a contact way,
or the sliding block (4) is arranged into a rectangular seat body, the lower end surface part of the sliding block (4) is arranged to be connected with the guide rail (2) in a contact way, the upper end surface part of the sliding block (4) is arranged to be connected with the tray (3),
or the telescopic thrust cylinder (5) is arranged to be an electric push rod, one end head of the telescopic thrust cylinder (5) is connected with the guide rail (2), the other end head of the telescopic thrust cylinder (5) is connected with the tray (3), and a control port of the telescopic thrust cylinder (5) is connected with the humidity controller (91),
or, the microwave heater (8) is set to include a filter conduit (81), a transformer (82), a high-voltage rectifier stack (83) and a magnetron (84), the inner end of the filter conduit (81) is set to be connected with the magnetron (84), the power interface of the magnetron (84) is set to be connected with the output port of the high-voltage rectifier stack (83), the input port of the high-voltage rectifier stack (83) is set to be connected with the end of the output coil of the transformer (82), the end of the input coil of the transformer (82) is set to be connected with an external power supply through a humidity controller (91), the filter conduit (81), the shell of the transformer (82) and the shell of the high-voltage rectifier stack (83) are respectively set to be connected with the box shell (1) and the outer end of the filter conduit (81) is set to be distributed corresponding to the fan device (9),
or the vertical plate (6) is a rectangular sheet body, the lower end of the vertical plate (6) is connected with the guide rail (2), the upper end of the vertical plate (6) is connected with the humidity sensing probe (7),
or the humidity sensing probe (7) is set as a capacitance humidity sensing probe, the outer end of the humidity sensing probe (7) is set to be connected with the vertical plate (6), the inner end of the humidity sensing probe (7) is set to be connected with the moisture absorption bag (10) in a sinking way, the output port of the humidity sensing probe (7) is set to be connected with the humidity controller (91),
or the humidity controller (91) is set as a PLC controller, the input port of the humidity controller (91) is set to be connected with the humidity sensing probe (7), the output port of the humidity controller (91) is respectively set to be connected with the thrust telescopic cylinder (5), the microwave heater (8) and the fan device (9),
or the fan device (9) is arranged to contain the blades (99) and the motor (98), the end shaft of the motor (98) is arranged to be connected with the blades (99), the shell of the motor (98) is arranged to be connected with the box shell (1), the control interface of the motor (98) is arranged to be connected with the humidity controller (91), the blades (99) are arranged to be distributed corresponding to the microwave heater (8) and the blades (99) are arranged to be fan blades,
or the moisture absorption bag (10), the tray (3), the guide rail (2), the sliding block (4), the telescopic thrust cylinder (5), the box shell (1) and the microwave heater (8) are arranged to be distributed according to a heating mode of a separate section, the moisture absorption bag (10), the tray (3), the guide rail (2), the sliding block (4), the telescopic thrust cylinder (5), the box shell (1), the microwave heater (8) and the vertical plate (6), the humidity sensing probe (7) and the humidity controller (91) are arranged to be distributed according to a linkage heating working mode, the moisture absorption bag (10), the tray (3), the guide rail (2), the sliding block (4), the telescopic thrust cylinder (5), the box shell (1), the microwave heater (8) and the fan sheet device (9) are arranged to be distributed according to a uniform microwave energy mode, the motor (98), the filter conduit (81), the transformer (82) and the high-voltage rectifier stack (83) are respectively arranged to be connected with the box part (11), the disc part (31) is respectively arranged to be connected with the permeable leakage window (13) and the mesh part (101),
or, a bracket is further included and is provided on the lateral portion of the tray portion (31), the bracket is provided as an inverted spiral frame and the middle portion of the moisture absorption bag (10) is provided in contact with the bracket, or the bracket is provided as a trapezoidal frame and the middle portion of the moisture absorption bag (10) is provided in contact with the bracket.
8. A drying and dehumidifying method based on a moisture absorption bag comprises the following steps: realized carrying out drying process to power equipment by tray and moisture absorption package (10), realized carrying out external heating to moisture absorption package (1) by the heating cabinet device, no longer carry out simultaneous heating process to power equipment subassembly and moisture absorption package (1).
9. The moisture-wicking packet-based drying and dehumidifying method as set forth in claim 8, wherein: the method comprises the following steps: connecting a box part (11) with a shell of the electric equipment, enabling a thrust telescopic cylinder (5) to be in an extension state, enabling a tray part (31) to be pushed out from the box part (11), stacking a moisture absorption package (10) on a transverse part of the tray part (31), placing a moisture sensing probe (7) in a through hole body (32), enabling the moisture sensing probe (7) to be placed between the moisture absorption packages (10), enabling a humidity controller (91) and the moisture sensing probe (7) to be in a working state, absorbing water vapor in the shell of the electric equipment through a moisture absorption particle part (102) to achieve dehumidification of the electric equipment, when the moisture sensing probe (7) picks up a humidity value signal of the moisture absorption particle part (102) in the moisture absorption package (10), enabling the moisture sensing probe (7) to input signals to the humidity controller (91), enabling the humidity controller (91) to respectively input signals to the thrust telescopic cylinder (5), a transformer (82) and a motor (98), enabling the thrust cylinder (5) to be in a contraction state, driving the tray part (31) to drive a high-voltage input device to slide along a leakage guide rail (2) through a power supply window (13), enabling a high-voltage input rectifier to be connected with a high-voltage rectifier transformer (83) to be connected with a rectifier transformer (13) and a rectifier transformer (83) to be connected with a high-voltage input port of a rectifier transformer (31) in a rectifier, and a rectifier transformer (13), the magnetron (84) is in a working state to generate microwaves, the motor (98) is in a working state to drive the blades (99) to rotate, the microwaves act on the blades (99), the microwave energy is uniformly distributed in the box part (11), the microwave energy heats the moisture absorption particle part (102), water in the moisture absorption particle part (102) is changed into water vapor to escape, the water vapor is gathered in the box part (11), the performance of the moisture absorption particle part (102) is recovered, after a set heating time is reached, the thrust telescopic cylinder (5) is in an extension state through the humidity controller (91), the disk part (31) is driven to move outwards along the guide rail (2) through the leakage window body (13), the disk part (31) is pushed out of the box part (11), the end of the input coil of the transformer (82) is disconnected from an external power supply through the humidity controller (91), the motor (98) is in a non-working state, the water vapor in the box part (11) becomes water drops along with the temperature reduction, and the water in the box part (11) is discharged through the water discharge window body (12),
or the moisture absorption bags (10) are arranged and distributed in a pipe wall arrangement or a wall arrangement.
10. The application of a drying and dehumidifying device and method based on a moisture absorption bag in an oil tank and an electric component tank is provided.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211075289.4A CN115523726A (en) | 2022-09-04 | 2022-09-04 | Drying and dehumidifying device and method based on moisture absorption bag and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211075289.4A CN115523726A (en) | 2022-09-04 | 2022-09-04 | Drying and dehumidifying device and method based on moisture absorption bag and application thereof |
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| JPH10165751A (en) * | 1996-12-13 | 1998-06-23 | Eku R C Kk | Dehumidifying apparatus |
| CN2853307Y (en) * | 2005-12-19 | 2007-01-03 | 武汉奋进电力技术有限公司 | Dehumidification damp-proof device for insulating tool cabinet |
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| CN208436631U (en) * | 2018-05-07 | 2019-01-29 | 江西昊仁电力设备有限公司 | A kind of moisture absorber of transformer |
| CN211631100U (en) * | 2020-01-21 | 2020-10-09 | 董鑫 | Greenhouse bottom dehumidifying device |
| CN212230803U (en) * | 2020-03-29 | 2020-12-25 | 苏师大半导体材料与设备研究院(邳州)有限公司 | Dampproofing dehumidification mechanism of outdoor high voltage distribution cabinet |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10165751A (en) * | 1996-12-13 | 1998-06-23 | Eku R C Kk | Dehumidifying apparatus |
| CN2853307Y (en) * | 2005-12-19 | 2007-01-03 | 武汉奋进电力技术有限公司 | Dehumidification damp-proof device for insulating tool cabinet |
| CN201179410Y (en) * | 2008-04-07 | 2009-01-14 | 武汉奋进电力技术有限公司 | Vehicle mounted humidity reducing set with reproducible hygroscopic material |
| CN208436631U (en) * | 2018-05-07 | 2019-01-29 | 江西昊仁电力设备有限公司 | A kind of moisture absorber of transformer |
| CN211631100U (en) * | 2020-01-21 | 2020-10-09 | 董鑫 | Greenhouse bottom dehumidifying device |
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