CN111520985A

CN111520985A - Roller dryer

Info

Publication number: CN111520985A
Application number: CN202010509961.0A
Authority: CN
Inventors: 宜尔轩
Original assignee: Ganwei Intelligent Technology Shenzhen Co ltd
Current assignee: Shenzhen Spiral Galaxy Technology Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-08-11
Also published as: WO2021248727A1

Abstract

The invention discloses a roller dryer, which comprises a shell body and a door plate assembly, wherein one side of the door plate assembly is connected with the shell body, a pressure barrel is fixedly arranged in the shell body, and the door plate assembly, the shell body and the pressure barrel are arranged in an enclosing manner to form a sealed cavity; the pressure barrel is internally provided with a roller, the end part of the bottom of the pressure barrel is provided with a gas outlet, the pressure barrel is provided with a vacuum pump at the gas outlet, the outer side part of the pressure barrel is provided with a fluid pipeline, the side wall of the front end part of the pressure barrel is provided with a fluid inlet, and one end part of the fluid pipeline stretches out of the fluid inlet and extends into the pressure barrel. The door plate assembly, the front panel and the pressure barrel are arranged to form a sealed cavity, the fluid pipeline with one end extending into the pressure barrel is arranged on the outer side of the pressure barrel, the air outlet is arranged at the bottom end of the pressure barrel in a matched mode, and finally the fluid is discharged by the vacuum pump to enable the sealed cavity to generate a negative pressure state, so that the drying efficiency of the dried object is improved by utilizing the influence of low pressure.

Description

Roller dryer

Technical Field

The invention relates to drying equipment, in particular to a roller dryer.

Background

Tumble dryers are used for drying non-powder-like moist objects, and more generally for drying clothes. The device is generally provided with a roller, a fan and a heating module, wherein the fan drives fluid such as air to enter the heating module, the fluid enters the roller after being heated by the heating module, and the evaporation speed of the liquid contained in the wet object in the roller is accelerated by utilizing the lower humidity and the higher temperature of the fluid. In order to increase the drying speed, the temperature of the heated fluid is usually increased, but the heated fluid is likely to damage the object to be dried.

Disclosure of Invention

In view of the above, there is a need to provide a tumble dryer capable of drying wet objects quickly.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a roller dryer comprises a shell body and a door plate assembly, wherein one side of the door plate assembly is connected with the shell body, a pressure barrel is fixedly arranged in the shell body, and the door plate assembly, the shell body and the pressure barrel are arranged in an enclosing manner to form a sealed cavity; the pressure barrel is internally provided with a roller, the end part of the bottom of the pressure barrel is provided with an air outlet, the pressure barrel is provided with a vacuum pump at the air outlet, the outer side part of the pressure barrel is provided with a fluid pipeline, the side wall of the front end part of the pressure barrel is provided with a fluid inlet, and one end part of the fluid pipeline protrudes out of the fluid inlet and extends into the pressure barrel.

In one embodiment, a front panel is arranged at the front end of the shell body, the door panel assembly is attached to one side of the front panel, the pressure barrel is fastened to the other side of the front panel, and the sealed cavity is formed by enclosing the door panel assembly, the front panel and the pressure barrel.

In one embodiment, one end of the fluid pipeline is bent to form an arc-shaped part, and an outlet of the arc-shaped part faces to the position of the bottom end of the roller.

In one embodiment, the fluid conduit is provided with a first flow passage and a second flow passage communicated with the first flow passage, and the cross-sectional area from the first flow passage to the second flow passage and then to the outlet of the arc-shaped part is gradually reduced.

In one embodiment, the sum of the outlet cross-sectional areas of the arc-shaped parts is smaller than the outlet cross-sectional area.

In one embodiment, the outer side wall of the arc-shaped part is sleeved with a protective sleeve.

In one embodiment, the inner side of the fluid conduit is provided with a heating module.

In one embodiment, a temperature sensor is further disposed inside the fluid conduit, and the temperature sensor is disposed between the heating module and the arc outlet.

In one embodiment, a filter screen is arranged inside the other end of the fluid pipeline.

In one embodiment, a fourth sealing ring is arranged in the flow pressure barrel and close to the front end part of the roller, the fourth sealing ring is made of felt or brush materials, one side of the fourth sealing ring is adhered to the inner side wall of the pressure barrel, and the other side of the fourth sealing ring is provided with a brushing part which is attached to the front end part of the roller.

In summary, the roller dryer of the present invention forms a sealed cavity by enclosing the door panel assembly, the front panel and the pressure barrel together, the roller is disposed in the pressure barrel, the fluid pipeline is disposed at the outer side of the pressure barrel, one end of the fluid pipeline extends into the pressure barrel, the air outlet connected to the vacuum pump is disposed at the bottom end of the pressure barrel, and finally the vacuum pump is used to discharge the fluid in the sealed cavity to generate a negative pressure state in the sealed cavity, so as to improve the drying efficiency of the dried object by using the influence of low pressure on the evaporation rate of the liquid, and achieve the effect of drying the wet object quickly.

Drawings

FIG. 1 is a schematic view of the structure of the tumble dryer of the present invention;

FIG. 2 is a sectional view of the drum dryer of FIG. 1 taken along the line A-A;

FIG. 3 is a schematic view of another perspective of the drum dryer of the present invention;

FIG. 4 is a schematic view of a door panel assembly according to the present invention;

FIG. 5 is an exploded view of the door panel assembly of the present invention;

FIG. 6 is a schematic view of the roller dryer with hidden door panel components according to the present invention;

FIG. 7 is a schematic structural view of a filter frame according to the present invention;

FIG. 8 is a schematic view of the roller dryer with the door panel assembly, the front panel and the filter rack hidden therein;

FIG. 9 is a schematic view of the roller dryer of the present invention with the door panel assembly, the front panel and the rollers hidden;

FIG. 10 is a schematic view of the drum dryer with the housing hidden;

FIG. 11 is a schematic structural diagram of a front panel according to the present invention;

FIG. 12 is a schematic structural view of a pressure barrel according to the present invention;

FIG. 13 is a structural cross-sectional view of a fluid conduit according to the present invention;

FIG. 14 is a schematic structural view of a drive mechanism of the present invention;

fig. 15 is an exploded view of the drive mechanism of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.

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 specific cases to those skilled in the art.

As shown in fig. 1 to 15, the tumble dryer of the present invention includes a shell body 10 and a door panel assembly 20, wherein one side of the door panel assembly 20 is connected to the shell body 10 through a first rotating shaft, the door panel assembly 20 is turned around the first rotating shaft to realize an opening and closing action, the other side of the door panel assembly 20 is provided with a locking mechanism 201, and the locking mechanism 201 is clamped on the shell body 10 to ensure a tight butt joint between the door panel assembly 20 and the shell body 10; specifically, a clamping hole 101 is formed in one side of the shell body 10, one end of the locking mechanism 201 is fixed in the door panel assembly 20, a buckle 202 is convexly extended from the other end of the locking mechanism 201, and the buckle 202 is in butt joint with the clamping hole 101 in a matching manner.

The door panel assembly 20 includes a frame 21 and a closed window 22 clamped in the frame 21, the closed window 22 is made of transparent plastic material, and a user can observe the drying state of the dried object, such as clothes, in the casing body 10 through the closed window 22; specifically, the frame 21 includes a rear frame 211 and a front frame 212, the sealing window 22 is fixed between the rear frame 211 and the front frame 212, a first ring groove 2111 is formed in one side of the rear frame 211 close to the front frame 212, a first sealing ring 213 is clamped in the first ring groove 2111, the sealing window 22 is tightly attached to the first sealing ring 213, the tightness of mutual fixation of the sealing window 22 and the rear frame 211 is ensured, and the sealing performance of the present invention is ensured; a second annular groove 2112 is formed in one side of the rear frame 211, which is close to the shell body 10, the second annular groove 2112 is clamped with a second sealing ring 214, and when the door panel assembly 20 is fastened to one side of the shell body 10 through the locking mechanism 201, the rear frame 211 applies pressure to the second sealing ring 214, so that the door panel assembly 20 is attached to and sealed with the periphery of the front end of the shell body 10, and the sealing performance of the invention is ensured.

The pressure barrel 30 is fixedly arranged in the shell body 10, the door panel assembly 20, the shell body 10 and the pressure barrel 30 are jointly enclosed to form a sealed cavity 301, specifically, the front end portion of the shell body 10 is provided with a front panel 11, the door panel assembly 20 is attached to one side of the front panel 11, the pressure barrel 30 is fastened to the other side of the front panel 11, specifically, the other side of the front panel 11 is provided with a third annular groove 111, a third sealing ring (not shown) is clamped in the third annular groove 111, the front end portion of the pressure barrel 30 is convexly provided with a butt-joint ring portion 31, and the butt-joint ring portion 31 is clamped in the third annular groove 111 and is arranged to be closely attached to the third sealing ring, so that the sealing performance between the front panel 11 and the pressure barrel 30 is ensured; after the door panel assembly 20 is attached to the front panel 11, the sealed cavity 301 is defined by the door panel assembly 20, the front panel 11 and the pressure barrel 30.

The pressure barrel 30 is internally provided with a roller 40, the bottom end of the roller 40 is provided with a second rotating shaft 41, the bottom end of the roller 40 is connected with the bottom end of the pressure barrel 30 through the second rotating shaft 41, specifically, the bottom end of the pressure barrel 30 is provided with a bearing 32, the second rotating shaft 41 is clamped in the bearing 32, so that the roller 40 can rotate by taking the second rotating shaft 41 as a shaft core, the pressure barrel 30 is internally provided with a supporting wheel 33, the supporting wheel 33 is abutted against the outer side of the roller 40, so that a distance between the roller 40 and the pressure barrel 30 is kept, and further the roller can conveniently rotate, and meanwhile, the supporting wheel 33 can rotate along with the rotation of the roller 40, so as to reduce the resistance to the rotation of the roller 40.

A plurality of openings 42 are formed in the bottom end of the roller 40 so as to facilitate the fluid to flow out of the roller 40 and reduce the fluid resistance; the filtering net frame 43 is arranged at the bottom end part of the roller 40 in the roller 40, the filtering net plate 431 is arranged on the filtering net frame 43, and the filtering net plate 431 is arranged at the front end part of the opening 42, so that impurities dried and dropped on the dried object in the roller 40 are prevented from flowing out of the opening 42, and the using effect of the invention is reduced.

In one embodiment, the strainer frame 43 is provided with a plurality of protrusions 432 at the front end of the strainer plate 431 to prevent the dried object with a large surface area from attaching to the bottom end of the drum 40 to increase the fluid resistance, reduce the interference of the dried object to the pressure in the sealed cavity 301, and better guide the fluid to flow out of the drum 40.

In one embodiment, a plurality of lifting ribs 44 are protruded at intervals in the drum 40, so that the drum 40 can drive the object to be dried to turn over in the rolling process when rotating, the contact area between the object to be dried and the fluid is increased, and the drying efficiency of the object to be dried is further improved.

A fourth sealing ring (not shown) is arranged in the pressure barrel 30 and close to the front end of the roller 40, the fourth sealing ring is made of felt or hairbrush, one side of the fourth sealing ring is bonded on the inner side wall of the pressure barrel 30, the other side of the fourth sealing ring is provided with a brushing part, the brushing part is attached to the front end of the roller 40, and when the roller 40 rotates around the second rotating shaft 41, the brushing part can be in sliding connection with the front end of the roller to improve the resistance to fluid entering the roller 40.

The lower end of the pressure barrel 30 is provided with a driving mechanism 50, the driving mechanism 50 is used for driving the roller 40 to rotate by taking the second rotating shaft 41 as a shaft core, and the driving mechanism 50 is tightly connected with the pressure barrel 30 to ensure the integrity of the sealed cavity 301; the driving mechanism 50 includes a fixed casing 51 with openings at upper and lower ends, the driving opening 34 has been seted up at the lower end of the pressure barrel 30, the upper end of the fixed casing 51 is tightly attached to the periphery of the driving opening 34, a cover plate 52 is fixedly arranged at the lower end of the fixed casing 51, a fifth sealing ring (not shown) is filled in a gap between the cover plate 52 and the periphery of the lower end of the fixed casing 51, so that the opening at the lower end of the fixed casing 51 is effectively sealed after the cover plate 52 is fastened with the fixed casing 51, and the periphery of the driving opening 34 is tightly attached to the upper end of the fixed casing 51, thereby effectively ensuring the sealing performance of the.

Specifically, the structure of the opening at the upper end of the fixed casing 51 is matched with the structure of the outer side of the pressure barrel 30, so as to facilitate the stable attachment of the fixed casing 51 to the pressure barrel 30, the upper end of the fixed casing 51 is provided with a groove 511, a sixth sealing ring (not shown) is arranged in the groove 511, thereby ensuring that the upper end of the fixed casing 51 is tightly attached to the periphery of the driving opening 34 of the pressure barrel 30, and the sealing performance of the sealing cavity 301 is effectively ensured by the sealing effect of the end opening of the matched cover plate 52 on the fixed casing 51.

The fixed shell 51 is provided with a driving motor 53, one end of the driving motor 53 is provided with a driving wheel 54, the fixed shell 51 is internally provided with an elastic frame 55, one end of the elastic frame 55 is clamped with a tension wheel 56, the tension wheels 56 are respectively arranged at two sides of the driving wheel 54, the tension wheel 56 is connected with the driving wheel 54 through a driving belt 57, the driving belt 57 protrudes out of the fixed shell 51 and is wound at the outer side part of the roller 40, after the driving belt 57 is wound at the outer side part of the roller 40, the driving belt 57 applies force to the tension wheel 56 to deform the elastic frame 55, so as to adjust the relative position between the tension wheel 56 and the driving wheel 54, and simultaneously, the restoring force of the elastic frame 55 is utilized to ensure that the driving belt 57 can be tightly attached to the driving wheel 54, the tension wheel 56 and the roller 40, and when the driving wheel 54 is driven by the driving motor 53 to rotate, the, thereby the dried material in the drum 40 is turned inside the drum 40.

In one embodiment, the cover plate 52 is provided with a pressing piece 58, and the bottom end of the elastic frame 55 is disposed below the pressing piece 58, so that the elastic frame 55 is fixed on the cover plate 52 by the pressing piece 58.

In this embodiment, the installation height of the tension wheel 56 is greater than the installation height of the driving wheel 54, an included angle between a connecting line between the center of the tension wheel 56 and the center of the driving wheel 54 is an acute angle, when the driving belt 57 is wound around the outer side portion of the drum 40, the lower end portion of the driving belt 57 first contacts the tension wheel 56 and applies force to the tension wheel 56 to deform the elastic frame 55, the elastic frame 55 expands and deforms toward the outer portions of the two sides of the driving wheel 54 with the driving wheel 54 as the center, and since the included angle between the center of the tension wheel 56 and the center of the driving wheel 54 is an acute angle, the restoring force of the elastic frame 55 enables the tension wheel 56 to continuously apply stable pressure to the driving belt 57, and it is ensured that the driving belt 57 can.

In one embodiment, the driving motor 53 is disposed at an outer side portion of the fixed housing 51, a rotating shaft 531 is disposed at one end of the driving motor 53, the driving wheel 54 is fixedly disposed at one end of the rotating shaft 531, and the rotating shaft 531 is disposed through the fixed housing 51, so that the driving motor 53 fixed at the outer side portion of the fixed housing 51 can drive the driving wheel 54 in the fixed housing 51 to rotate, and further the driving belt 57 drives the drum 40 to rotate, and the drum 40 rotates on the premise of ensuring the sealing of the sealed cavity 301, and meanwhile, because the driving motor 53 provides power at the outer side portion of the fixed housing 51, the power of the driving motor 53 is effectively prevented from being eroded by steam and liquid in the drum 40, and the service life of the present invention is prolonged.

The bottom end of the pressure barrel 30 is provided with an air outlet 35, the pressure barrel 30 is provided with a vacuum pump 60 at the air outlet 35, the vacuum pump 60 is used for pumping out the fluid in the roller 40, a condensing device 70 is arranged outside the bottom end of the pressure barrel 30 in the shell body 10, the vacuum pump 60 is connected with the condensing device 70, and the condensing device 70 is used for condensing the steam in the fluid pumped out by the vacuum pump 60.

The lower end of the shell body 10 is provided with a recovery box body 81 below the pressure barrel 30, the recovery box body 81 is of a drawer-shaped structure, a collection box 82 is arranged in the recovery box body 81, the collection box 82 finishes the drawing and combining operation with the recovery box body 81 through a drawing mode, a liquid discharge port of the condensing device 70 is communicated with the collection box 82 through a hose, so that liquid collected by the condensing device 70 is discharged into the collection box 82, a grid 71 is arranged on one side of the condensing device 70, and an air discharge port of the condensing device 70 is connected with the grid 71, so that fluid in the roller 40 is discharged through the grid 71 after being processed by the condensing device 70.

The outer side of the pressure barrel 30 is provided with a plurality of fluid pipelines 90, the side wall of the front end of the pressure barrel 30 is provided with a fluid inlet 36, one end of each fluid pipeline 90 protrudes out of the fluid inlet 36 and extends into the pressure barrel 30, specifically, the fluid inlet 36 is arranged at the edge of the front end of the roller 40 in a matching manner, the end position of the fluid pipeline 90 extending into the pressure barrel 30 is closer to the center of the section of the front end of the roller 40 than the edge position of the front end of the roller 40, and because one end of each fluid pipeline 90 protrudes out of the fluid inlet 36 for a certain distance, the roller 40 does not touch the fluid pipeline 90 when rotating.

In one embodiment, an end of the fluid conduit 90 is bent to form an arc-shaped portion 91, an outlet of the arc-shaped portion 91 faces the bottom end of the drum 40, so as to guide the fluid entering the sealed cavity 301 to flow toward the bottom end of the drum 40, specifically, an included angle between a tangential direction of the outlet of the arc-shaped portion 91 and a direction of an axis of the second rotating shaft 41 disposed at the bottom end of the drum 40 is 0 to 90 °; when the drum 40 drives the dried object to rotate in the drum 40, the plurality of highly-directed fluids can improve the heat supplement efficiency of the dried object at a lower flow rate, when the pressure in the sealed chamber 301 becomes low the efficiency of heat transfer by thermal convection becomes low, the heat transfer is almost exclusively based on heat conduction and heat radiation under the condition of the approximate absolute vacuum, since the dried object is not in contact with the inner wall of the drum 40 for a long time during the rotation of the drum 40, and the surfaces of all the dried objects cannot be constantly exposed in a heat radiation environment, the two heat transfer modes have low transfer efficiency in the drum dryer, the fluid pipeline 90 is additionally arranged to provide a small amount of fluid supply when the low-pressure state in the sealed cavity 301 is kept, the supplemented fluid supplements the heat of the dried objects in a heat convection mode, and then the rapid drying operation of the dried objects is completed.

The fluid pipeline 90 is provided with a first flow passage 92 and a second flow passage 93 communicated with the first flow passage 92, the cross-sectional area from the first flow passage 92 to the second flow passage 93 to the outlet of the arc-shaped part 91 is gradually reduced, and the direction from the first flow passage 92 to the second flow passage 93 to the outlet of the arc-shaped part 91 is gradually changed, so that the integral resistance of the interior of the fluid pipeline 90 to the fluid can be influenced, and the speed, the flow and the pressure of the fluid are influenced; specifically, the resistance of the first flow channel 92 and the second flow channel 93 to the fluid is greater than the resistance of the air outlet 35 to the fluid, so that the resistance of the fluid flowing into the sealed cavity 301 is greater than the resistance of the fluid flowing out of the sealed cavity 301, and under the action of the vacuum pump 60, a negative pressure lower than the ambient atmospheric pressure is generated in the sealed cavity 301, and the drying efficiency of the object to be dried is improved by utilizing the influence of the low pressure on the evaporation rate of the liquid, wherein the negative pressure can be realized by adjusting the working power of the vacuum pump 60 or installing a throttling device in the fluid pipeline 90.

In one embodiment, the sum of the outlet cross-sectional areas of the arc-shaped portions 91 is smaller than the cross-sectional area of the air outlet 35, so that the amount of fluid entering the sealed cavity 301 through the fluid pipeline 90 is smaller than the amount of fluid discharged from the air outlet 35 through the sealed cavity 301, and due to the cross-sectional area difference, the resistance of the vacuum pump 60 in pumping out the fluid from the sealed cavity 301 is larger than the resistance of the fluid flowing out of the sealed cavity 301, so as to ensure the negative pressure state inside the sealed cavity 301.

The heating module 94 is arranged at the inner side part of the fluid pipeline 90, external fluid enters the fluid pipeline 90 and is heated by the heating module 94, and the heated fluid enters the sealed cavity 301 from the outlet of the arc part 91 at one end part of the fluid pipeline 90, so that the dried objects in the roller 40 are dried; the inner side of the fluid pipeline 90 is further provided with a temperature sensor 95, and the temperature sensor 95 is arranged between the heating module 94 and the outlet of the arc-shaped part 91 and is used for detecting the temperature of the fluid before entering the sealed cavity 301.

In one embodiment, a protective sleeve 96 is sleeved on the outer side wall of the arc-shaped portion 91, the protective sleeve 96 is made of a flexible material, and the protective sleeve 96 is used for forming good wrapping and sealing performance on the fluid inlet 36, so that pressure loss in the sealed cavity 301 is reduced, and physical damage caused by scratching the arc-shaped portion 91 in the turning process of the dried object is reduced.

In one embodiment, a filter screen 97 is disposed inside the other end of the fluid conduit 90, and the filter screen 97 is used for filtering the fluid entering the fluid conduit 90 to prevent external impurities from entering the fluid conduit 90 along with the fluid.

In one embodiment, a PCB panel 102 is disposed in the casing body 10, an operation panel 103 is disposed at an upper end of the casing body 10, a power socket 104 is disposed at a rear end of the casing body 10, the vacuum pump 60, the driving mechanism 50, the heating module 94, the temperature sensor 95, the operation panel 103, the power socket 104, and the like are all connected to the PCB panel 102 through cables (not shown), and a microcontroller and a driving circuit are disposed on the PCB panel 102 to read or control operating states of the vacuum pump 60, the driving mechanism 50, the heating module 94, the temperature sensor 95, and the operation panel 103.

In one embodiment, a liquid level sensor 83 is disposed in the collection box 82, the liquid level sensor 83 is used for sensing the height of the liquid level in the collection box 82, when the liquid level of the liquid collected in the collection box 82 exceeds a preset value, the liquid level sensor 83 sends a signal to the PCB panel 102, and the PCB panel 102 controls an alarm device to remind a user of processing the liquid in the collection box 82.

When the vacuum pump works specifically, after the door panel assembly 20 and the shell body 10 are locked firmly, the door panel assembly is connected with external electric power through the power socket 104, a user operates a key on the operation panel 103 to control the working state of the vacuum pump, the vacuum pump 60 can drive fluid in the pressure barrel 30 to flow outwards in continuous work, because the sum of the sectional areas of the outlets of all the arc-shaped parts 91 is smaller than the sectional area of the air outlet 35, and the resistance of the first flow channel 92 and the second flow channel 93 to the fluid is larger than that of the air outlet 35 to the fluid, the resistance of the fluid flowing into the pressure barrel 30 is larger than that of the fluid flowing out of the pressure barrel 30, so that negative pressure lower than the ambient atmospheric pressure is generated in the sealed cavity 301, and according to different use scenes, the microcontroller arranged on the PCB panel 102 is used for automatically controlling and adjusting parameters such as the working power of the vacuum, the drying efficiency of the dried objects is improved by utilizing the influence of low pressure on the evaporation rate of the liquid, and the effect of quickly drying the wet objects is achieved.

In summary, the roller dryer of the present invention forms a sealed cavity 301 by enclosing the door panel assembly 20, the front panel 11 and the pressure barrel 30 together, the roller 40 is disposed in the pressure barrel 30, the fluid pipeline 90 is disposed at the outer side of the pressure barrel 30, one end of the fluid pipeline extends into the pressure barrel 30, the air outlet 35 connected to the vacuum pump 60 is disposed at the bottom end of the pressure barrel 30, and finally the vacuum pump 60 is used to discharge the fluid in the sealed cavity 301 to generate a negative pressure state in the sealed cavity 301, so as to improve the drying efficiency of the object to be dried by using the influence of low pressure on the evaporation rate of the liquid, and achieve the effect of drying the wet object quickly.

The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A drum dryer characterized in that: including shell body and door plant subassembly, door plant subassembly one side and this body coupling of shell, this internal fixed pressure barrel that is provided with of shell, door plant subassembly, shell body and pressure barrel enclose to establish and form a sealed cavity, be provided with the cylinder in the pressure barrel, the gas outlet has been seted up to pressure barrel head portion, the pressure barrel is provided with the vacuum pump in gas outlet department, pressure barrel outside portion is provided with the fluid pipeline, the fluid entry has been seted up to the tip lateral wall before the pressure barrel, a fluid pipeline tip is protruding to stretch out the fluid entry and extend to in the pressure barrel.

2. The tumble dryer according to claim 1, characterized in that: the shell body front end portion is provided with the front panel, door plant subassembly and front panel one side laminating setting, the pressure barrel sets up with front panel opposite side fastening, seal chamber encloses to establish by door plant subassembly, front panel and pressure barrel and forms.

3. The tumble dryer according to claim 1, characterized in that: one end of the fluid pipeline is bent to form an arc-shaped part, and an outlet of the arc-shaped part faces to the position of the bottom end part of the roller.

4. The tumble dryer according to claim 3, characterized in that: the fluid pipeline is provided with a first flow passage and a second flow passage communicated with the first flow passage, and the cross-sectional area from the first flow passage to the second flow passage and then to the outlet of the arc-shaped part is gradually reduced.

5. The tumble dryer according to claim 3, characterized in that: the sum of the sectional areas of the outlets of the arc-shaped parts is smaller than the sectional area of the air outlet.

6. The tumble dryer according to claim 3, characterized in that: the outer side wall of the arc-shaped part is sleeved with a protective sleeve.

7. The tumble dryer according to claim 3, characterized in that: and a heating module is arranged at the inner side part of the fluid pipeline.

8. The tumble dryer according to claim 7, characterized in that: the inner side of the fluid pipeline is also provided with a temperature sensor, and the temperature sensor is arranged between the heating module and the outlet of the arc-shaped part.

9. The tumble dryer according to any of claims 1 to 3, characterized in that: and a filter screen is arranged on the inner side of the other end of the fluid pipeline.

10. The tumble dryer according to any of claims 1 to 3, characterized in that: a fourth sealing ring is arranged in the flow pressure barrel and close to the front end of the roller, the fourth sealing ring is made of felt or hairbrush materials, one side of the fourth sealing ring is bonded on the inner side wall of the pressure barrel, the other side of the fourth sealing ring is provided with a brushing part, and the brushing part is attached to the front end of the roller.