Liquid storage dryer

Abstract

The present invention discloses a liquid storage dryer, belonging to the field of liquid storage dryers. A liquid storage dryer comprises an outer shell, and a filter box fixed in the outer shell; the upper end of the outer shell is provided with an air outlet and an air inlet; the air outlet is connected to the inner bottom of the outer shell through a ventilation pipe; the filter box is evenly provided with a plurality of water absorption chambers along the circumference; an upper filter plate is installed at the upper end of each water absorption chamber; the water absorption chamber is filled with a desiccant; a rotating tube is rotatably connected in the outer shell; an upper air chamber directly opposite to the upper end of the water absorption chamber is provided at the upper end of the rotating tube; a lower filter plate abutting against the lower end of the filter box is provided at the lower end of the rotating tube; a lower air chamber is provided at the lower end of the lower filter plate directly below the upper air chamber; the upper air chamber and the lower air chamber are both connected with the rotating tube; a centrifugal impeller is rotatably connected in the upper air chamber; a heating wire is fixedly connected in the lower air chamber. Through the rotation of the rotating tube, the desiccant in each water absorption chamber is regenerated in turn.

Description

Technical Field

[0001] The invention belongs to the field of liquid storage dryers, and more specifically, relates to a liquid storage dryer. Background Art

[0002] The function of the liquid storage dryer is to absorb moisture in the sealed air conditioning pipeline and filter out tiny impurities in the pipeline. It mainly includes the filtering part (filter), the drying part (desiccant, moisture absorbent), the sealed container part (cylinder or tank) and the inlet and outlet holes. The drying part is an important part for absorbing moisture. After the drying part absorbs a lot of water, the water absorption performance of the drying part will decrease. Therefore, the drying part needs to be regenerated to remove the moisture in the drying part and extend the service life of the drying part.

[0003] The patent with publication number CN222034015U discloses a liquid storage dryer filtering mechanism, including a shell, a top cover fixedly connected to the top of the shell, a sealing plate slidably connected to the middle side of the shell, a frame fixedly connected to the inner side of the sealing plate, a filter fixedly connected to the middle of the frame, a slide rail fixedly connected to the outer side of the frame and the sealing plate, positioning holes are provided on the inner sides of the two slide rails, a snap-on assembly is installed on both sides of the outer side of the shell, two hollow plates are fixedly connected to the middle side of the shell, and a silica gel moisture absorption layer is fixedly connected to the bottom of the top hollow plate. The liquid storage dryer filtering mechanism can squeeze the saturated silica gel structure, squeeze out and collect the water absorbed by the silica gel, and finally discharge it from the inside of the mechanism, so that the silica gel moisture absorption layer can restore the moisture absorption performance, ensure the stability of the mechanism moisture absorption effect and extend the service life of the silica gel moisture absorption structure.

[0004] The above patent squeezes out the water in the silica gel by squeezing. Long-term reciprocating squeezing will damage the silica gel, and some fine silica gel debris will fall off the surface of the silica gel. The debris will flow out of the liquid storage dryer body along with the gas in the liquid storage dryer, thereby affecting the normal operation of the air conditioner. At the same time, after the silica gel is squeezed back and forth, the overall volume of the silica gel will decrease, and then the density will increase. The water absorption performance of high-density silica gel will decrease, thereby affecting the water absorption efficiency of the silica gel. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a liquid storage dryer, which can realize the regeneration of silica gel desiccant without changing the original performance of the desiccant.

[0006] A liquid storage dryer of the present invention comprises an outer shell and a filter box fixed in the outer shell; an air outlet and an air inlet are arranged at the upper end of the outer shell; the air outlet is connected with the inner bottom of the outer shell through a ventilation pipe; a plurality of water absorption chambers are evenly arranged on the filter box along the circumference; an upper filter plate is installed at the upper end of each water absorption chamber; a desiccant is filled in the water absorption chamber; a rotating tube is rotatably connected in the outer shell; an upper air chamber directly opposite to the upper end of the water absorption chamber is arranged at the upper end of the rotating tube; a lower filter plate abutting against the lower end of the filter box is arranged at the lower end of the rotating tube; a lower air chamber is arranged at the lower end of the lower filter plate directly below the upper air chamber; the upper air chamber and the lower air chamber are both connected with the rotating tube; a centrifugal impeller is rotatably connected in the upper air chamber; a heating wire is fixedly connected in the lower air chamber.

[0007] As a further improvement of the present invention, the inner wall of the rotating tube is provided with a spirally distributed threaded plate.

[0008] As a further improvement of the present invention, a water storage pipe is fixedly connected to the housing below the rotating pipe; a lower opening connected to the water storage pipe is provided at the lower end of the rotating pipe; and the rotating pipe is sealingly and rotatably connected to the water storage pipe.

[0009] As a further improvement of the present invention, a drain outlet is provided at the bottom of the water storage pipe; a float is longitudinally slidably connected inside the water storage pipe; a sealing body for closing the drain outlet is provided at the lower end of the float; and a spring for driving the sealing body to close the drain outlet is provided between the float and the water storage pipe.

[0010] As a further improvement of the present invention, an axial flow impeller driven by the airflow entering from the air inlet is rotatably connected to the housing above the filter box; the axial flow impeller is transmission-connected to the centrifugal impeller.

[0011] As a further improvement of the present invention, the rotating tube is rotatably connected with an eccentrically arranged driving gear and an intermittent gear coaxially arranged with the driving gear; the driving gear and the intermittent gear are connected via a coil spring; a limit ring that hinders the rotation of the intermittent gear is fixedly connected to the rotating tube; the driving gear is drivingly connected with the centrifugal impeller. A fixed gear coaxially arranged with the rotating tube is fixedly connected in the housing; the intermittent gear meshes with the fixed gear.

[0012] As a further improvement of the present invention, the centrifugal impeller and the driving gear are transmission connected via a reduction gear set.

[0013] As a further improvement of the present invention, the limiting ring is coaxially distributed with the intermittent gear; a plurality of limiting protrusions are evenly arranged on the limiting ring along the circumferential direction; a stopping protrusion which abuts against the limiting protrusion is arranged on the side wall of the intermittent gear; and the stopping protrusion is made of elastic material.

[0014] Compared with the prior art, the beneficial effect of the present invention is that: the present invention forms an airflow passage between the rotating tube and a water absorption chamber through the rotation of the centrifugal impeller, and the airflow generated by the centrifugal impeller circulates in the passage. The airflow is heated by the heating wire, so that the heated airflow takes away the moisture in the desiccant, so that the desiccant is regenerated.

[0015] In this solution, the upper air cavity is made to face different water absorption cavities in sequence by rotating the rotating tube, thereby regenerating the desiccant in each water absorption cavity one by one. The water absorption cavity that is not facing the upper air cavity still works normally, and the working efficiency of the liquid storage dryer is not reduced.

[0016] In this solution, the gas entering through the air inlet not only cooperates with the desiccant to remove moisture in the gas, but also acts on the axial flow impeller, so that the axial flow impeller drives the centrifugal impeller to rotate rapidly. No additional power element is required to drive the centrifugal impeller to rotate, thus saving costs.

[0017] In this solution, during the rotation of the centrifugal impeller, the centrifugal impeller can also drive the driving gear to rotate slowly, so that the coil spring accumulates force. When the elastic force in the coil spring is greater than the set value, the coil spring will drive the rotating tube to rotate a certain angle through the intermittent gear, so that the upper air cavity is directly opposite to the next water absorption cavity.

[0018] This solution extends the path of gas flow in the rotating tube by providing a spiral threaded plate, so that the airflow can be fully cooled in the rotating tube, which facilitates the airflow to liquefy the water carried on the surface of the threaded plate. At the same time, this solution uses the temperature of the gas entering the air inlet to allow the gas to cool the rotating tube and the threaded plate, thereby accelerating the liquefaction speed of the water in the rotating tube.

[0019] This solution uses a water storage pipe to centrally store liquefied water and controls the movement of the sealing body through buoyancy. When there is more water, the sealing body no longer closes the drain port, and the water in the water storage pipe is discharged to avoid excessive water accumulation in the water storage pipe. At the same time, before or after the water storage pipe is drained, there is always a portion of water in the water storage pipe, which isolates the gas in the rotating pipe from the outside world, preventing the gas in the rotating pipe from flowing out through the drain port or the external gas from entering the water storage pipe through the drain port. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the installation structure of the float of the present invention;

[0023] Figure 4It is a schematic diagram of the structure of the rotating tube of the present invention;

[0024] Figure 5 It is a schematic diagram of the transmission structure of the driving gear of the present invention;

[0025] Figure 6 It is a schematic diagram of the exploded structure of the limit ring and the intermittent gear of the present invention.

[0026] Description of the numbers in the figure:

[0027] 1. Shell; 11. Air outlet; 12. Air inlet; 13. Ventilation pipe; 14. Fixed gear; 2. Axial flow impeller; 21. Internal gear; 22. Oblique blades; 3. Filter box; 31. Water suction chamber; 32. Upper filter plate; 4. Rotating tube; 41. Lower filter plate; 42. Upper air chamber; 421. Connecting port; 43. Lower air chamber; 44. Threaded plate; 45. Lower opening; 5. Heating wire; 6. Water storage pipe; 61. Drainage outlet; 7. Float; 71. Sealing body; 72. Spring; 81. Transmission gear; 82. Centrifugal impeller; 821. Flat blades; 83. Reduction gear set; 84. Limiting ring; 841. Limiting protrusion; 85. Intermittent gear; 851. Stop protrusion; 86. Driving gear; 87. Coil spring. DETAILED DESCRIPTION

[0028] Specific embodiment 1: Please refer to Figure 1-Figure 6 A liquid storage dryer comprises a shell 1 and a filter box 3 fixed in the shell 1; an air outlet 11 and an air inlet 12 are arranged at the upper end of the shell 1; the air outlet 11 is communicated with the inner bottom of the shell 1 through a vent pipe 13; the filter box 3 is evenly arranged with a plurality of water absorption chambers 31 along the circumferential direction; an upper filter plate 32 is installed at the upper end of each water absorption chamber 31; a desiccant is filled in the water absorption chamber 31; a rotating tube 4 is rotatably connected in the shell 1; an upper air chamber 42 which is directly opposite to the upper end of the water absorption chamber 31 is arranged at the upper end of the rotating tube 4; a lower filter plate 41 which is abutted against the lower end of the filter box 3 is arranged at the lower end of the rotating tube 4; a lower air chamber 43 is arranged at the lower end of the lower filter plate 41 directly below the upper air chamber 42; the upper air chamber 42 and the lower air chamber 43 are both communicated with the rotating tube 4; a centrifugal impeller 82 is rotatably connected in the upper air chamber 42; a heating wire 5 is fixedly connected in the lower air chamber 43.

[0029] The lower air cavity 43 and the upper air cavity 42 are connected to the same water absorption cavity 31 through a communication pipe.

[0030] When the centrifugal impeller 82 rotates, the centrifugal impeller 82 will generate airflow, and the airflow will circulate among the upper air cavity 42 , the rotating tube 4 , the lower air cavity 43 , and the water absorption cavity 31 .

[0031] The heating wire 5 is used to heat the airflow, so that after the heated airflow enters the water absorption cavity 31, the airflow takes away the moisture in the desiccant.

[0032] The inner wall of the rotating tube 4 is provided with a spirally distributed threaded plate 44 .

[0033] After the airflow passes through the threaded plate 44, the airflow path is long, so that the temperature of the airflow decreases when the airflow passes through the threaded plate 44, thereby achieving a liquefaction effect. The moisture attached to the airflow will gather on the surface of the threaded plate 44. As the airflow temperature decreases, the heat of the airflow is transferred to the threaded plate 44, and the temperature of the threaded plate 44 will increase. When the airflow in the housing 1 flows through the filter box 3, the airflow contacts the outer wall of the rotating tube 4, taking away the heat of the outer wall of the rotating tube 4, and then the temperature of the threaded plate 44 decreases, achieving heat dissipation of the threaded plate 44.

[0034] A water storage pipe 6 is fixedly connected to the housing 1 below the rotating pipe 4 ; a lower opening 45 communicating with the water storage pipe 6 is provided at the lower end of the rotating pipe 4 ; the rotating pipe 4 is sealed and rotatably connected to the water storage pipe 6 .

[0035] The water gathered on the threaded plate 44 will flow downward along the threaded plate 44 and finally drip into the water storage pipe 6 .

[0036] A drain outlet 61 is provided at the bottom of the water storage pipe 6; a float 7 is longitudinally slidably connected inside the water storage pipe 6; a sealing body 71 for closing the drain outlet 61 is provided at the lower end of the float 7; a spring 72 for driving the sealing body 71 to close the drain outlet 61 is provided between the float 7 and the water storage pipe 6.

[0037] As the water in the water storage pipe 6 increases, the buoyancy of the float 7 increases. When the water in the water storage pipe 6 is higher than the set value, the buoyancy of the float 7 drives the float 7 to move upward, the sealing body 71 is separated from the drain port 61, the drain port 61 is connected to the outside, and the water in the water storage pipe 6 is discharged from the drain port 61. When the water in the water storage pipe 6 is lower than the set value, the spring 72 drives the sealing body 71 to close the drain port 61, and at this time, a part of water is still stored in the water storage pipe 6, which isolates the drain port 61 from the gas in the rotating tube 4, and then in the process of drainage, the gas in the rotating tube 4 will not flow out from the drain port 61.

[0038] An axial flow impeller 2 driven by the airflow entering from the air inlet 12 is rotatably connected in the housing 1 above the filter box 3 ; the axial flow impeller 2 is transmission-connected to the centrifugal impeller 82 .

[0039] The centrifugal impeller 82 is coaxially provided with a transmission gear 81 ; the axial flow impeller 2 is coaxially provided with an internal gear 21 meshing with the transmission gear 81 ; the centrifugal impeller 82 is not coaxial with the axial flow impeller 2 .

[0040] The axial flow impeller 2 is evenly provided with inclined blades 22 along the circumferential direction; when the airflow blows toward the inclined blades 22 from top to bottom, the airflow drives the axial flow impeller 2 to rotate.

[0041] Flat blades 821 are evenly arranged along the circumference of the centrifugal impeller 82 ; each of the flat blades 821 is vertically arranged; and the side wall of the centrifugal impeller 82 faces the connecting port 421 between the rotating tube 4 and the upper air cavity 42 .

[0042] The rotating tube 4 is rotatably connected with an eccentrically arranged driving gear 86 and an intermittent gear 85 coaxially arranged with the driving gear 86; the driving gear 86 and the intermittent gear 85 are connected via a coil spring 87; a limiting ring 84 is fixedly connected to the rotating tube 4 to prevent the intermittent gear 85 from rotating; the driving gear 86 is in transmission connection with the transmission gear 81. A fixed gear 14 coaxially arranged with the rotating tube 4 is fixedly connected in the housing 1; the intermittent gear 85 meshes with the fixed gear 14.

[0043] The centrifugal impeller 82 and the driving gear 86 are connected to each other through a reduction gear set 83 .

[0044] The limiting ring 84 is coaxially distributed with the intermittent gear 85 ; a plurality of limiting protrusions 841 are evenly arranged on the limiting ring 84 along the circumferential direction; a stop protrusion 851 abutting against the limiting protrusion 841 is arranged on the side wall of the intermittent gear 85 ; the stop protrusion 851 is made of elastic material.

[0045] When the elastic force in the coil spring 87 is greater than the set value, the stop protrusion 851 breaks through the limit of the limit protrusion 841, so that the coil spring 87 drives the intermittent gear 85 to rotate a specified angle. When the intermittent gear 85 rotates, the intermittent gear 85 rotates along the fixed gear 14, and then the intermittent gear 85 drives the rotating tube 4 to rotate, and the upper air cavity 42 and the lower air cavity 43 move toward the next water absorption cavity 31.

[0046] During operation, the gas enters the upper part of the housing 1 through the air inlet 12, and then enters the water absorption chamber 31 directly opposite to the upper air chamber 42. After the moisture in the gas is absorbed by the desiccant, the gas enters the lower part of the housing 1 from below the water absorption chamber 31. The gas entering the lower part of the housing 1 enters the vent pipe 13 and is finally discharged from the air outlet 11.

[0047] In the above process, the airflow entering the upper part of the housing 1 acts on the axial flow impeller 2, causing the axial flow impeller 2 to rotate. The axial flow impeller 2 drives the transmission gear 81 to rotate through the internal gear 21. The transmission gear 81 drives the centrifugal impeller 82 to rotate.

[0048] As the centrifugal impeller 82 rotates, the centrifugal force generated by the centrifugal impeller 82 causes the gas in the upper air chamber 42 to flow toward the connecting port 421 and enter the rotating tube 4, and at the same time, negative pressure is generated at the lower end of the centrifugal impeller 82. The gas in the water absorption chamber 31 connected to the upper air chamber 42 will be sucked into the upper air chamber 42, and then the air flow begins to circulate. At the same time, the heating wire 5 works, and the air flow in the lower air chamber 43 is heated. The heated air flow entering the water absorption chamber 31 takes away the moisture inside the desiccant.

[0049] After the airflow enters the rotating tube 4, it moves along the threaded plate 44, the temperature of the airflow gradually decreases, and the moisture carried in the airflow adheres to the surface of the threaded plate 44. The airflow entering the housing 1 from the air inlet 12 cools and dissipates the rotating tube 4 and the threaded plate 44.

[0050] The water gathered on the threaded plate 44 will flow downward along the threaded plate 44 and eventually flow into the water storage pipe 6 .

[0051] As the transmission gear 81 rotates, the transmission gear 81 drives the driving gear 86 to rotate slowly through the reduction gear set 83, and the coil spring 87 accumulates force. When the elastic force in the coil spring 87 is greater than the set value, the stop protrusion 851 breaks through the limit of a limit protrusion 841, and the coil spring 87 drives the intermittent gear 85 to rotate a certain angle until the stop protrusion 851 abuts against the next limit protrusion 841, and the elastic force in the coil spring 87 is reduced.

[0052] During the process of the intermittent gear 85 rotating at a certain angle, the intermittent gear 85 meshes with the fixed gear 14, and the intermittent gear 85 revolves along the axis of the fixed gear 14 during the process of self-rotation, and the intermittent gear 85 drives the rotating tube 4 to rotate. The rotating tube 4 drives the upper air cavity 42 and the lower air cavity 43 to move to face the next water absorption cavity 31, so as to regenerate the desiccant in the next water absorption cavity 31.

[0053] The above process is repeated, and the rotating tube 4 regenerates the desiccant in each water absorption cavity 31 in turn.

[0054] As the rotating tube 4 continues to work, the water in the water storage pipe 6 gradually increases. When the water in the water storage pipe 6 is greater than the set value, the buoyancy of the water on the float 7 causes the float 7 to move upward, and then the sealing body 71 is separated from the drain port 61, and the water in the water storage pipe 6 is discharged from the drain port 61, and the water level in the water storage pipe 6 gradually decreases. When the water in the water storage pipe 6 is reduced to below the set value, the spring 72 drives the sealing body 71 to re-close the drain port 61. Then the drainage work of the water storage pipe 6 is completed.

Claims

1. A liquid storage dryer, characterized in that: It comprises an outer shell and a filter box fixed inside the outer shell; an air outlet and an air inlet are arranged at the upper end of the outer shell; the air outlet is connected with the inner bottom of the outer shell through a ventilation pipe; a plurality of water absorption chambers are evenly arranged on the filter box along the circumference; an upper filter plate is installed at the upper end of each water absorption chamber; a desiccant is installed in the water absorption chamber; a rotating tube is rotatably connected inside the outer shell; an upper air chamber directly opposite to the upper end of the water absorption chamber is arranged at the upper end of the rotating tube; a lower filter plate abutting against the lower end of the filter box is arranged at the lower end of the rotating tube; a lower air chamber is arranged at the lower end of the lower filter plate directly below the upper air chamber; the upper air chamber and the lower air chamber are both connected with the rotating tube; a centrifugal impeller is rotatably connected in the upper air chamber; a heating wire is fixedly connected in the lower air chamber; The inner wall of the rotating tube is provided with a spirally distributed threaded plate; A water storage pipe is fixedly connected to the housing below the rotating pipe; a lower opening communicating with the water storage pipe is provided at the lower end of the rotating pipe; the rotating pipe is sealingly and rotatably connected to the water storage pipe; A drain outlet is arranged at the bottom of the water storage pipe; a float is longitudinally slidably connected in the water storage pipe; a sealing body for closing the drain outlet is arranged at the lower end of the float; and a spring for driving the sealing body to close the drain outlet is arranged between the float and the water storage pipe.

2. A liquid storage dryer according to claim 1, characterized in that: An axial flow impeller driven by the airflow entering from the air inlet is rotatably connected in the shell and located above the filter box; the axial flow impeller is transmission-connected to the centrifugal impeller.

3. A liquid storage dryer according to claim 2, characterized in that: The rotating tube is rotatably connected with an eccentrically arranged driving gear and an intermittent gear coaxially arranged with the driving gear; the driving gear and the intermittent gear are connected by a coil spring; a limiting ring that hinders the rotation of the intermittent gear is fixedly connected to the rotating tube; the driving gear is transmission-connected to the centrifugal impeller; a fixed gear coaxially arranged with the rotating tube is fixedly connected in the outer shell; the intermittent gear meshes with the fixed gear.

4. A liquid storage dryer according to claim 3, characterized in that: The centrifugal impeller is connected to the driving gear via a reduction gear set.

5. The liquid storage dryer according to claim 3, characterized in that: The limiting ring is coaxially distributed with the intermittent gear; a plurality of limiting protrusions are evenly arranged on the limiting ring along the circumferential direction; a stopping protrusion abutting against the limiting protrusion is arranged on the side wall of the intermittent gear; the stopping protrusion is made of elastic material.

6. A liquid storage dryer according to claim 3, characterized in that: The centrifugal impeller is coaxially provided with a transmission gear; the axial flow impeller is coaxially provided with an internal gear meshing with the transmission gear; the centrifugal impeller and the axial flow impeller are not coaxial; The axial flow impeller is evenly provided with inclined blades along the circumference; when the airflow blows toward the inclined blades from top to bottom, the airflow drives the axial flow impeller to rotate; Flat blades are evenly arranged on the centrifugal impeller along the circumferential direction; each of the flat blades is vertically arranged; and the side wall of the centrifugal impeller is directly opposite to the communication port between the rotating tube and the upper air cavity.

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