CN114797395B

CN114797395B - Renewable adsorption dehumidifier

Info

Publication number: CN114797395B
Application number: CN202210542457.XA
Authority: CN
Inventors: 庞嘉睿; 林锦萱
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2023-06-20
Anticipated expiration: 2042-05-17
Also published as: CN114797395A

Abstract

The invention belongs to the field of adsorption type dehumidification equipment, and in particular relates to a renewable adsorption type dehumidifier, which comprises: a base; the shell component is positioned on the base, and the inner side of the shell component is used for placing a drying agent; a heating assembly located inside the housing assembly; the shell component is provided with a plurality of switchable air channels for connecting or disconnecting the desiccant and air outside the shell component. When the air duct is closed, the drying agent and the air outside the shell component are disconnected, the heating component dries the drying agent, and when the drying agent is dried, the air duct is opened again, so that the heating regeneration of the drying agent can be realized, the drying efficiency is improved, and the service time is prolonged.

Description

Renewable adsorption dehumidifier

Technical Field

The invention belongs to the field of adsorption type dehumidification equipment, and particularly relates to a renewable adsorption type dehumidifier.

Background

The conventional solid adsorption type dehumidifying apparatus generally adopts a disposable dehumidifying bag or a dehumidifying box using calcium chloride as a desiccant for dehumidification. The volume of the dehumidification bag and the dehumidification box is limited, so that the sufficient calcium chloride is difficult to contain, and the dehumidification amount is small. Under the environment of high humidity, the dehumidification purpose is realized by frequent replacement, and the use is inconvenient. The other is a calcium chloride dehumidification device, air enters the device through an air inlet channel, water vapor in the air is absorbed by a calcium chloride desiccant in a reaction chamber, and the calcium chloride desiccant is dissolved in water to form a calcium chloride solution which flows into a effusion chamber; under the environment with high humidity, the water-removing device needs to be frequently replaced to achieve the aim of dehumidification; the calcium chloride drying agent is a large irregular solid after being dried, has extremely poor dehumidification effect, can only be used once, and is difficult to recycle after being dissolved in water.

Disclosure of Invention

The invention provides a renewable adsorption dehumidifier, which is used for disconnecting the drying agent from the air outside a shell assembly when an air channel is closed, drying the drying agent through a heating assembly, and opening the air channel after the drying agent is dried, so that the drying agent can be heated and regenerated, the drying efficiency is improved, and the service time is prolonged.

In order to solve the above technical problems, the present invention provides a regenerable adsorption dehumidifier, comprising: a base; the shell component is positioned on the base, and the inner side of the shell component is used for placing a drying agent; a heating assembly located inside the housing assembly; the shell component is provided with a plurality of switchable air channels for connecting or disconnecting the desiccant and air outside the shell component; when the air duct is closed, the desiccant is disconnected from the air outside the housing assembly, and the heating assembly dries the desiccant.

Further, the housing assembly includes: the shell is fixed on the base and provided with a plurality of first through holes; the inner shell is contacted with the inner side of the outer shell and is movably connected with the inner side of the outer shell, and second through holes which are in one-to-one correspondence with the first through holes are formed in the inner shell; the cover covers the top of the shell; wherein the desiccant is placed inside the inner shell; when the inner shell is rotated to enable the first through hole and the second through hole to be staggered to form a closed air channel, the drying agent is disconnected with air outside the shell assembly; when the inner shell is reset to enable the first through hole to be communicated with the second through hole to form an opened air channel, the drying agent is communicated with air outside the shell assembly.

Further, the regenerable adsorption dehumidifier further comprises a rotating assembly; the rotating assembly includes: the rotating bracket is fixed on the inner shell; a motor, the output shaft of which is connected to the rotating bracket; the motor is suitable for driving the inner shell to rotate through the rotating bracket.

Further, a circular clamping groove is formed in the top of the base; the bottom of the inner shell is suitable for being placed in the circular clamping groove and movably connected with the circular clamping groove.

Further, the heating assembly includes: the heating core is cylindrical and is positioned in the inner shell; the water storage tank is communicated with the inside of the housing through a conduit; wherein the heating core is adapted to dry the desiccant and to allow the hot gases produced to enter the water storage tank from the conduit.

Further, the bottom of the heating core is arranged on the base, and the top of the heating core is used for placing the motor; the drying agent is a silicon dioxide particle drying agent; and a storage gap is reserved between the heating core and the inner shell so as to accommodate the drying agent.

Further, the heating assembly is adapted to be controlled by a processor module; the bottom of the storage gap is provided with a pressure sensor for detecting the total pressure of the drying agent; when the total pressure of the drying agent is larger than the upper limit value of the set pressure threshold value, the processor module controls the motor to drive the inner shell to rotate, so that the first through hole and the second through hole are dislocated to form a closed air channel, and the heating core is controlled to start drying the drying agent; when the total pressure of the drying agent is smaller than the lower limit value of the set pressure threshold value, the processor module controls the heating core to stop drying the drying agent, and controls the motor to drive the inner shell to reset, so that the first through hole and the second through hole are communicated to form an opened air channel.

Further, the heating assembly also includes a temperature sensor at the top of the storage gap to detect the temperature of the desiccant; the processor module controls the heater core to maintain a constant temperature when the temperature of the desiccant is greater than a set temperature value.

The regenerable adsorption dehumidifier has the beneficial effects that the shell component is provided with the plurality of switchable air channels, when the air channels are closed, the desiccant is separated from the air outside the shell component, the desiccant is dried through the heating component, and when the desiccant is dried, the air channels are opened, so that the heating regeneration of the desiccant can be realized, the drying efficiency is improved, and the service time is prolonged.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a regenerable adsorption dehumidifier;

FIG. 2 is a schematic view of the internal structure of the housing assembly;

FIG. 3a is a schematic structural view of the housing;

FIG. 3b is a schematic structural view of the inner shell;

FIG. 4 is a top view of the inner shell;

FIG. 5 is an enlarged view of portion A of FIG. 2;

in the figure:

the drying machine comprises a base 1, a circular clamping groove 11, a shell assembly 2, an outer shell 21, a first through hole 211, an inner shell 22, a second through hole 221, a housing 23, a drying agent 3, a storage gap 31, a heating assembly 4, a heating core 41, a water storage tank 42, a conduit 43, a temperature sensor 44, an air duct 5, a rotating assembly 6, a rotating bracket 61, a motor 62 and a pressure sensor 7.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 5, the present embodiment provides a regenerable adsorption dehumidifier, comprising: a base 1; a housing assembly 2 on the base 1, the inner side of which is used for placing a drying agent 3; a heating assembly 4 located inside the housing assembly 2; wherein, the shell component 2 is provided with a plurality of switchable air channels 5 for connecting or disconnecting the desiccant 3 and the air outside the shell component 2; when the air duct 5 is closed, the drying agent 3 is disconnected from the air outside the housing assembly 2, and the heating assembly 4 dries the drying agent 3.

Optionally, the base is a chargeable energy storage base, supplies power for the renewable adsorption dehumidifier, and can realize free movement of the renewable adsorption dehumidifier in space.

As an alternative embodiment of the housing assembly.

See fig. 2, 3a, 3b, the housing assembly 2 comprising: a housing 21 fixed on the base 1 and provided with a plurality of first through holes 211; an inner case 22 which is in contact with and movably connected to the inner side of the outer case 21 and has second through holes 221 corresponding to the first through holes 211 one by one; a cover 23 covering the top of the housing 21; wherein the desiccant 3 is placed inside the inner shell 22; when the inner shell 22 is rotated to enable the first through holes 211 and the second through holes 221 to be staggered to form a closed air duct 5, the drying agent 3 is disconnected from the air outside the shell assembly 2; when the inner housing 22 is reset to allow the first through hole 211 to communicate with the second through hole 221 to form the opened air duct 5, the desiccant 3 communicates with the air outside the housing assembly 2.

Optionally, the cover 23 is a tempered glass cover, and is fixed on the top of the housing 21, so that water vapor is condensed on the inner surface of the cover 23 to form liquid beads; the inner shell 22 and the outer shell 21 are of thin-wall structures, and the wall surfaces of the inner shell 22 and the outer shell 21 are uniformly provided with a first through hole 211 and a second through hole 221 for air to enter and exit the drying agent 3.

The shell assembly of this embodiment utilizes first through-hole and second through-hole intercommunication to form the wind channel of opening, and the week side of can make full use of shell increases dehumidification area, and through the rotatory of control inner shell, makes inner shell and shell produce different coincidence degrees, realizes the intercommunication or the disconnection of first through-hole and second through-hole to realize opening and shutting in wind channel, be convenient for switch dehumidification work and stoving work.

As an alternative embodiment of the rotating assembly.

Referring to fig. 2 and 4, the regenerable adsorption dehumidifier further comprises a rotary assembly 6; the rotating assembly 6 comprises: a rotating bracket 61 fixed to the inner case 22; a motor 62 having an output shaft connected to the rotating bracket 61; the motor 62 is adapted to rotate the inner housing 22 horizontally inside the outer housing 21 by rotating the bracket 61.

Further, as shown in fig. 5, a circular clamping groove 11 is formed in the top of the base 1; the bottom of the inner shell 22 is suitable for being placed in the circular clamping groove 11 and is movably connected with the circular clamping groove 11.

As an alternative embodiment of the heating assembly.

Referring to fig. 1 and 2, the heating assembly 4 includes: a heating core 41 having a cylindrical shape and disposed inside the inner case 22; a water storage tank 42 communicating with the inside of the housing 23 through a conduit 43; wherein the heating core 41 is adapted to dry the drying agent 3 and to let the generated hot gas from the duct 43 into the water storage tank 42.

Alternatively, referring to fig. 2, the bottom of the heating core 41 is mounted on the base 1, and the top of the heating core 41 is used for placing the motor 62; the drying agent 3 is a silicon dioxide particle drying agent; and a storage gap 31 is left between the heating core 41 and the inner shell 22 to accommodate the desiccant 3 and to satisfy the free rotation of the inner shell 22. The silica particle drying agent is heated by the heating core 41, so that moisture in the air absorbed by the silica particle drying agent is separated out in the form of water vapor, the drying agent is regenerated, and the water vapor rises to the housing 23 under the action of pressure difference and enters the water storage tank 42 along the conduit 43. Most of the water vapor in the water storage tank 42 falls along with the temperature, and liquid beads are separated out from the inner surface of the water storage tank 42 and collected; after condensation of a small portion of the water vapor on the inner surface of the housing 23 to form droplets, the droplets drop under the force of gravity and are heated again to evaporate. Until the heating core is suspended, water vapor no longer escapes from the silica particle desiccant, and the process achieves water recovery.

In particular, see fig. 2, the heating assembly 4 is adapted to be controlled by a processor module; the bottom of the storage gap 31 is provided with a pressure sensor 7, for example, a pressure sensor with the model PT124G-210, which is positioned right below the desiccant to detect the total pressure of the desiccant 3; when the total pressure of the drying agent 3 is greater than the upper limit value of the set pressure threshold value, the processor module controls the motor 62 to drive the inner shell 22 to horizontally rotate in the outer shell 21, so that the first through hole 211 and the second through hole 221 are dislocated to form a closed air duct 5, and controls the heating core 41 to start drying the drying agent 3; when the total pressure of the drying agent 3 is smaller than the lower limit value of the set pressure threshold, the processor module controls the heating core 41 to stop drying the drying agent 3, and controls the motor 62 to drive the inner shell 22 to rotate forward for a certain angle or rotate reversely and horizontally in the outer shell 21 for resetting, so that the first through hole 211 is communicated with the second through hole 221 to form an opened air duct 5. The processor module is used for collecting the pressure of the silica particle drying agent by a pressure sensor, for example but not limited to a singlechip (such as msp430f 135) or a PLC, wherein the difference between the measured pressure and the initial pressure of the silica particle drying agent is the dehumidification amount, and the dehumidification amount data is transmitted to the singlechip; the singlechip controls the rotating assembly to open or close the air duct and simultaneously controls the working state of the heating core.

Preferably, as seen in fig. 2, the heating assembly 4 further comprises a temperature sensor 44 located at the top of the storage gap 31 to detect the temperature of the desiccant 3; the processor module controls the heater core 41 to maintain a constant temperature when the temperature of the desiccant 3 is greater than a set temperature value.

In this case, the operating states of the regenerable adsorption dehumidifier include the following cases:

(1) Conventional dehumidification conditions:

starting the renewable adsorption dehumidifier, controlling the rotating assembly 6 by the singlechip (msp 430f 135) to drive the inner shell 22 to rotate, enabling the first through hole 211 to be aligned with the second through hole 221, enabling outside air to enter the silica particle desiccant 3 through the air duct 5 and fully contact with the silica particle desiccant 3, increasing the weight of the silica particle desiccant 3 after absorbing water vapor in the air, but basically keeping the shape unchanged (because the space structure of the silica particle desiccant 3 is provided with a plurality of small holes, the water vapor can be absorbed into the silica particle desiccant 3 and the silica particle desiccant 3 is difficultly dissolved in water), monitoring the total pressure of the silica particle desiccant 3 by the pressure sensor 7 (PT 124G-210) in real time, and transmitting the total pressure value to the singlechip (msp 430f 135), and maintaining the working state when the total pressure value is smaller than the upper limit (such as 10N) of the pressure setting threshold.

(2) Silica particle desiccant opens the heating regeneration regime:

for example, when the total pressure value is greater than the upper limit (e.g., 10N) of the set threshold, the silica particle desiccant 3 is brought into a heated regeneration mode. The singlechip controls the motor 62 to start working, the motor 62 drives the inner shell 22 to rotate by a certain angle (for example, 4.5 degrees or 355.5 degrees) through the rotating bracket 61, at the moment, the second through hole 221 on the inner shell 22 is completely blocked by the outer shell 21, the first through hole 211 on the outer shell 21 is completely blocked by the inner shell 22, the first through hole 211 and the second through hole 221 are not communicated in a dislocation way, the air duct 5 is in a closed working condition, air cannot enter and cannot flow out, and thus the silica particle drying agent 3 stops absorbing water vapor in the air. After the air duct 5 is closed, the singlechip controls the heating core 41 to start working, the temperature is kept unchanged after the temperature is increased to 70 ℃, and the steam which escapes from the silica particle drying agent after being heated enters the housing 23 upwards and enters the water storage tank 42 along the guide pipe 43 to realize condensation and liquefaction.

(3) The silica particle desiccant stops heating and regenerating working conditions:

for example, when the total pressure value is less than the lower limit (e.g., 9N) of the pressure set threshold, the silica particle desiccant heating regeneration mode is terminated. The single chip microcomputer controls the heating core 41 to stop working, the single chip microcomputer controls the motor 62 to start working, the motor 62 drives the inner shell to continuously rotate for a certain angle (such as 4.5 degrees or 355.5 degrees in the reverse direction) through the rotating support 61, resetting is carried out, at the moment, the first through holes 211 are communicated with the second through holes 221 in an aligned mode, and the renewable adsorption type dehumidifier starts a conventional dehumidification working condition and absorbs water vapor in air.

Compared with the prior art, the regenerable adsorption dehumidifier of the invention has the following effects:

(1) The base can store electric energy, can satisfy and use in many time space scope, whole small, light in weight, convenient removal and carry, especially in the little space such as wardrobe, bathroom, cupboard.

(2) The silica particle drying agent can realize regeneration through heating, has long service life and achieves low carbon emission reduction; the cylindrical heating core is adopted to heat the silica particle drying agent, so that the heating area is large, and the regeneration time of the silica particle drying agent is shortened; meanwhile, the vapor escaping from the silica particle drying agent is condensed and collected in the water storage tank, so that the water is recovered.

(3) The peripheral side of make full use of shell is as the fan port, compares with traditional dehumidification bag, dehumidification box, has effectively increased dehumidification area, improves dehumidification efficiency.

(4) The pressure sensor transmits the collected dehumidification amount data to the processor module, and the processor module controls the opening and closing state of the air duct and the working state of the heating core. When a certain dehumidification amount is reached, closing the air duct and starting the heating core to heat and regenerate the drying agent; when the dehumidification amount is reduced to a certain value, the air duct is opened and the heating core is closed, the regeneration of the silica particle desiccant is realized in the process without manual control, and the intelligent control of the renewable adsorption dehumidifier is embodied.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed.

With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.

Claims

1. A regenerable adsorption dehumidifier comprising:

a base;

the shell component is positioned on the base, and the inner side of the shell component is used for placing a drying agent;

a heating assembly located inside the housing assembly; the heating component comprises a heating core which is cylindrical and is positioned in the inner shell, and the bottom of the heating core is arranged on the base; a storage gap is reserved between the heating core and the inner shell so as to accommodate the drying agent; the bottom of the storage gap is provided with a pressure sensor for detecting the total pressure of the drying agent; the heating assembly is adapted to be controlled by a processor module;

wherein the housing assembly comprises:

the shell is fixed on the base and provided with a plurality of first through holes;

the inner shell is contacted with the inner side of the outer shell and is movably connected with the inner side of the outer shell, and second through holes which are in one-to-one correspondence with the first through holes are formed in the inner shell; when the inner shell is rotated to enable the first through hole and the second through hole to be staggered to form a closed air channel, the drying agent is disconnected with air outside the shell assembly; when the inner shell is reset to enable the first through hole to be communicated with the second through hole to form an opened air channel, the drying agent is communicated with air outside the shell assembly; a desiccant is placed inside the inner shell;

when the total pressure of the drying agent is larger than the upper limit value of the set pressure threshold value, the processor module controls the motor to drive the inner shell to rotate, so that the first through hole and the second through hole are dislocated to form a closed air channel, and the heating core is controlled to start drying the drying agent;

when the total pressure of the drying agent is smaller than the lower limit value of the set pressure threshold value, the processor module controls the heating core to stop drying the drying agent, and controls the motor to drive the inner shell to reset, so that the first through hole and the second through hole are communicated to form an opened air channel.

2. The regenerable adsorption dehumidifier of claim 1, wherein said housing assembly further comprises: the cover covers the top of the shell.

3. The regenerable adsorption dehumidifier of claim 2, wherein,

the regenerable adsorption dehumidifier also comprises a rotating component;

the rotating assembly includes:

the rotating bracket is fixed on the inner shell;

a motor, the output shaft of which is connected to the rotating bracket;

the motor is suitable for driving the inner shell to rotate through the rotating bracket.

4. The regenerable adsorption dehumidifier of claim 3, wherein,

the top of the base is provided with a circular clamping groove;

the bottom of the inner shell is suitable for being placed in the circular clamping groove and movably connected with the circular clamping groove.

5. The regenerable adsorption dehumidifier of claim 4, wherein,

the heating assembly further comprises:

the water storage tank is communicated with the inside of the housing through a conduit; wherein the method comprises the steps of

The heating core is adapted to dry the desiccant and to allow the hot gases produced to enter the water storage tank from the conduit.

6. The regenerable adsorption dehumidifier of claim 5, wherein,

the top of the heating core is used for placing the motor, and the drying agent is silicon dioxide particle drying agent.

7. The regenerable adsorption dehumidifier of claim 1, wherein,

the heating assembly further comprises a temperature sensor positioned at the top of the storage gap to detect the temperature of the desiccant;

the processor module controls the heater core to maintain a constant temperature when the temperature of the desiccant is greater than a set temperature value.