Membrane type filtering dryer

Abstract

The utility model relates to the technical field of drying machines, in particular to a membrane type filtering drying machine which comprises a main shell, a membrane type filtering device and a membrane type filtering device, a cylindrical tubular drying film is arranged in the main shell; the upper part and the lower part of the main shell are respectively in sealed connection with an upper joint seat with an exhaust port and a lower joint seat with an air inlet, the upper joint seat is in sealed connection with an exhaust filtering structure, and the lower joint seat is in sealed connection with a gas-liquid separation structure; the exhaust filtering structure and the gas-liquid separation structure are respectively communicated with the upper and lower ends of the tubular drying film. According to the membrane type filtering and drying machine, the membrane type filtering function and the drying function are integrated in one all-in-one machine through modular design, the all-in-one machine can be directly integrated in an air compressor system, and compared with a traditional combination of multiple independent devices, the space of a dental treatment room is greatly saved; the problem that existing equipment occupies a large space due to scattered layout is solved.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, and more specifically, to a membrane filter dryer. Background Technology

[0002] In the field of dental treatment, air compressors are commonly used devices that provide the necessary compressed air power for dental instruments. However, current dental air compressors on the market have many shortcomings in air handling. The compressed air output by traditional dental air compressors often contains a large amount of moisture and solid particles, among other impurities. These impurities can damage dental instruments; for example, moisture can cause internal rust and corrosion, affecting the lifespan and performance of the instruments; solid particles can clog the instrument's tiny channels, leading to instrument malfunction and thus affecting the normal conduct of dental treatment.

[0003] To meet the air quality requirements of dental treatment, existing solutions typically employ multiple independent filtration and drying devices to process compressed air separately. This approach has significant drawbacks. Firstly, the combination of multiple devices occupies a considerable amount of space, while dental treatment rooms are usually quite limited in space. Too many devices can make the treatment room feel cramped, hindering equipment layout and operation. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a membrane filter dryer.

[0005] The technical solution adopted in this utility model is:

[0006] A membrane filter dryer includes: a main shell; a cylindrical tubular drying membrane disposed inside the main shell; an upper connector seat with an exhaust port and a lower connector seat with an air inlet are respectively sealed to the upper and lower parts of the main shell, an exhaust filter structure is sealed to the upper connector seat, and a gas-liquid separation structure is sealed to the lower connector seat; the exhaust filter structure and the gas-liquid separation structure are respectively connected to the upper and lower ends of the tubular drying membrane.

[0007] Furthermore, the lower connector includes: a lower body, the upper surface of which is provided with a first receiving shell and a first receiving ring located inside the first receiving shell, the first receiving shell being sealed to the lower part of the outer wall of the main housing, and the first receiving ring being sealed to the lower part of the tubular drying film; the lower surface of the lower body is provided with a second receiving shell and a second receiving ring located inside the second receiving shell, both the second receiving shell and the second receiving ring being sealed to the gas-liquid separation structure, and the air inlet being provided on the second receiving shell.

[0008] Furthermore, the gas-liquid separation structure includes: a first filter screen seat sealed below the second receiving ring; the first filter screen seat is connected to the second filter screen seat via a first columnar filter screen below; the first columnar filter screen communicates with the tubular drying membrane through the flow port of the first filter screen seat; the outer side of the first filter screen seat is connected to the inner wall of the separation shell via a guide wheel with multiple inclined guide plates; and the open end of the top body of the separation shell is sealed to the inner side of the second receiving shell.

[0009] Furthermore, the bottom of the separation shell is provided with a drain outlet and a plugging structure for sealing the drain outlet.

[0010] Furthermore, the plugging structure includes: a stud that is slidably connected in the drain outlet, the top of the stud being connected to a plug that is sealed and locked inside the bottom surface of the separation shell, and the bottom of the stud being screwed with a nut for locking onto the lower surface of the separation shell.

[0011] Furthermore, the outer wall of the tubular drying membrane is mounted on the inner wall of the main housing via an annular seat.

[0012] Furthermore, the upper connector includes: an upper body, a third mounting shell and a third mounting ring located inside the third mounting shell are provided on the lower surface of the upper body, the third mounting shell is sealed and connected to the upper part of the outer wall of the main housing, and the third mounting ring is sealed and connected to the upper part of the tubular drying film; a fourth mounting shell and a fourth mounting ring are provided on the upper surface of the upper body, both the fourth mounting shell and the fourth mounting ring are sealed and connected to the exhaust filter structure, and the exhaust port is provided on the fourth mounting shell.

[0013] Furthermore, the exhaust filtration structure includes: a columnar exhaust filter screen and a third filter screen seat and a fourth filter screen seat installed at the upper and lower ends of the columnar exhaust filter screen. The fourth filter screen seat is sealed and connected to the fourth connecting ring. The columnar exhaust filter screen is connected to the tubular drying membrane through the flow port of the fourth filter screen seat. A top cover plate is sealed and connected above the third connecting shell. The top cover plate covers the third filter screen seat.

[0014] Furthermore, the abutment ring on the lower surface of the upper cover plate is on the upper surface of the third filter holder.

[0015] Furthermore, the columnar exhaust filter is a medical-grade bacterial filter.

[0016] Furthermore, an exhaust pipe with a one-way valve is connected to the exhaust port of the fourth housing.

[0017] As can be seen from the above solution, the beneficial effects of this utility model are as follows:

[0018] This utility model discloses a membrane filter dryer that integrates membrane filtration and drying functions into a single unit using a modular design. It can also be directly integrated into an air compressor system. Compared with traditional combinations of multiple independent devices, it greatly saves space in dental treatment rooms and solves the problem of existing equipment occupying a lot of space due to its dispersed layout, making the equipment layout in dental treatment rooms more reasonable and compact. This utility model utilizes a cylindrical tubular drying membrane, an exhaust filtration structure, and a gas-liquid separation structure within the main housing to efficiently dry and filter compressed air.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 A schematic diagram of a membrane filter dryer provided for an embodiment of this utility model;

[0022] Figure 2 A cross-sectional view of a membrane filter dryer provided for an embodiment of this utility model;

[0023] Figure 3 Schematic diagram of the upper connector provided in the embodiment of this utility model Figure 1 ;

[0024] Figure 4 Schematic diagram of the upper connector provided in the embodiment of this utility model Figure 2 ;

[0025] Figure 5 Schematic diagram of the lower connector provided in the embodiment of this utility model Figure 1 ;

[0026] Figure 6 Schematic diagram of the lower connector provided in the embodiment of this utility model Figure 2 ;

[0027] Figure 7 A schematic diagram of the exhaust filter structure provided in an embodiment of this utility model;

[0028] Figure 8 A schematic diagram of the gas-liquid separation structure provided in an embodiment of this utility model;

[0029] Figure 9 A partial view of the gas-liquid separation structure provided in an embodiment of this utility model;

[0030] Figure 10 A schematic diagram of the blocking structure provided in an embodiment of this utility model;

[0031] Icons: Main housing 1; Tubular drying film 2; Exhaust port 3; Upper connector seat 4; Upper seat body 401; Third connector shell 402; Third connector ring 403; Fourth connector shell 404; Fourth connector ring 405; Air inlet 5; Lower connector seat 6; Lower seat body 601; First connector shell 602; First connector ring 603; Second connector shell 604; Second connector ring 605; Exhaust filter structure 7; Columnar exhaust filter screen 701; Third filter screen seat 702; Fourth filter screen seat 703; Gas-liquid separation structure 8; First filter screen seat 801; First columnar filter screen 802; Second filter screen seat 803; Inclined guide plate 804; Separation shell 805; Blocking structure 9; Stud 901; Clamping plug 902; Nut 903; Ring seat 10; Upper cover plate 11; Exhaust pipe 12. Detailed Implementation

[0032] To ensure a clear and complete description of the technical solutions in the embodiments of this utility model below, in conjunction with the accompanying drawings, it is evident that the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0034] Example 1

[0035] Please see Figures 1-10 This utility model provides a membrane filter dryer, including: a main shell 1; a cylindrical tubular drying membrane 2 disposed inside the main shell 1; an upper connector 4 with an exhaust port 3 and a lower connector 6 with an air inlet 5 respectively sealed to the upper and lower parts of the main shell 1, an exhaust filter structure 7 sealed to the upper connector 4, and a gas-liquid separation structure 8 sealed to the lower connector 6; the exhaust filter structure 7 and the gas-liquid separation structure 8 are respectively connected to the upper and lower ends of the tubular drying membrane 2.

[0036] The working principle and technical effects of the above technical solution are as follows:

[0037] This utility model discloses a membrane filter dryer. During operation, compressed air containing moisture and solid particles first enters the area between the lower connector 6 and the exhaust filter structure 7 through the air inlet 5. The compressed air undergoes preliminary filtration through the exhaust filter structure 7, allowing liquids in the compressed air to fall and accumulate, while solid particles and other impurities are blocked and filtered by the exhaust filter structure 7. The compressed air, after preliminary filtration by the exhaust filter structure 7, rises into the tubular drying membrane 2. Under high pressure, the compressed air passes through the membrane, filtering out water vapor. The dried gas then enters the exhaust filter structure 7 for precision filtration. The exhaust filter structure 7 can be a medical-grade bacterial filter, effectively filtering out bacteria and fine impurities in the compressed air to achieve a medical-grade effect. Finally, the air is discharged through the exhaust port 3 of the upper connector 4. This utility model adopts a modular design, integrating membrane filtration and filtration / drying functions into one unit. It can be directly integrated into an air compressor system, significantly saving space in dental treatment rooms compared to traditional combinations of multiple independent devices.

[0038] Example 2

[0039] Please see Figures 1-10 This utility model provides a membrane filter dryer in which the lower connector seat 6 includes: a lower seat body 601, a first connector shell 602 and a first connector ring 603 located inside the first connector shell 602 are provided on the upper surface of the lower seat body 601, the first connector shell 602 is sealed to the lower part of the outer wall of the main housing 1, and the first connector ring 603 is sealed to the lower part of the tubular drying membrane 2; a second connector shell 604 and a second connector ring 605 located inside the second connector shell 604 are provided on the lower surface of the lower seat body 601, both the second connector shell 604 and the second connector ring 605 are sealed to the gas-liquid separation structure 8, and the air inlet 5 is provided on the second connector shell 604. The gas-liquid separation structure 8 includes: a first filter seat 801 sealed below the second receiving ring 605; a first columnar filter 802 connected to a second filter seat 803 below the first filter seat 801; the first columnar filter 802 communicating with the tubular drying membrane 2 through the flow port of the first filter seat 801; the outer side of the first filter seat 801 connected to the inner wall of the separation shell 805 through a guide wheel with multiple inclined guide plates 804; and the open end of the top of the separation shell 805 sealed to the inner side of the second receiving shell 604. The bottom of the separation shell 805 has a drain port and a plugging structure 9 for sealing the drain port. The outer wall of the tubular drying membrane 2 is mounted on the inner wall of the main shell 1 via an annular seat 10, providing good stability.

[0040] The working principle and technical effects of the above technical solution are as follows:

[0041] In this membrane filter dryer, when compressed air enters the area between the lower connector seat 6 and the first columnar filter screen 802 through the air inlet 5, the compressed air first contacts the guide wheel with multiple inclined guide plates 804. After being guided by the guide wheel with multiple inclined guide plates 804, the compressed air flows more rapidly, thereby improving the solid-liquid separation effect. The separated liquid falls into the separation shell 805 and can be discharged through the drain port at the bottom of the separation shell 805 after the plug structure 9 is removed. The drain port is plugged, which is a common structure and will not be described in detail here. The compressed air after liquid separation is filtered through the first columnar filter screen 802. The first columnar filter screen 802 can be made of stainless steel metal filter screen, which has high strength and can effectively filter particulate impurities while reducing impact damage and ensuring filtration effect. Compressed air filtered by the first columnar filter 802 enters the tubular drying membrane 2 through the flow port of the first filter seat 801 for drying. When the humid compressed air enters the tubular drying membrane 2, it flows along the inner wall of the tubular drying membrane 2. Due to the relatively small size of water vapor molecules, and the preferential adsorption and diffusion characteristics of the tubular drying membrane 2 for water vapor, the water vapor molecules preferentially dissolve on the high-pressure side surface of the membrane. Then, driven by the concentration difference, the water vapor molecules diffuse towards the low-pressure side of the tubular drying membrane 2 and pass through the side wall of the tubular drying membrane 2. The accumulated moisture can flow downward and be discharged through the drain port of the lower seat 601. The dried compressed air continues to flow along the central channel of the tubular drying membrane 2 and is finally output from the outlet above the tubular drying membrane 2 to the exhaust filter structure 7 for further processing, thus achieving the purpose of drying the compressed air. The plugging structure 9 includes: a stud 901 slidably connected inside the drain outlet; the top of the stud 901 is connected to a locking plug 902 that is sealed and locked inside the bottom surface of the separating shell 805; and the bottom of the stud 901 is screwed to a nut 903 for locking onto the lower surface of the separating shell 805. When drainage is required, the nut 903 can be rotated to disengage it from the stud 901, and then the stud 901 can be controlled to move upward inside the drain outlet. The top of the stud 901 drives the locking plug 902 to disengage from the bottom surface of the separating shell 805, thereby allowing liquid to drain through the gap between the stud 901 and the drain outlet, achieving the purpose of drainage. It is convenient to operate and highly practical.

[0042] Example 3

[0043] Please see Figures 1-10This utility model provides a membrane filter dryer in which the upper connector seat 4 includes: an upper seat body 401, a third connector shell 402 and a third connector ring 403 located inside the third connector shell 402 are provided on the lower surface of the upper seat body 401, the third connector shell 402 is sealed to the upper part of the outer wall of the main housing 1, and the third connector ring 403 is sealed to the upper part of the tubular drying membrane 2; a fourth connector shell 404 and a fourth connector ring 405 are provided on the upper surface of the upper seat body 401, both the fourth connector shell 404 and the fourth connector ring 405 are sealed to the exhaust filter structure 7, and the exhaust port 3 is provided on the fourth connector shell 404. The exhaust filtration structure 7 includes: a columnar exhaust filter 701 and a third filter holder 702 and a fourth filter holder 703 installed at the upper and lower ends of the columnar exhaust filter 701. The fourth filter holder 703 is sealed to the fourth connecting ring 405. The columnar exhaust filter 701 communicates with the tubular drying membrane 2 through the flow port of the fourth filter holder 703. A top cover plate 11 is sealed to the top of the third connecting shell 402, and the top cover plate 11 covers the third filter holder 702. The columnar exhaust filter 701 is a medical bacterial filter. An exhaust pipe 12 with a one-way valve is connected to the exhaust port 3 of the fourth connecting shell 404.

[0044] The working principle and technical effects of the above technical solution are as follows:

[0045] In this invention, a membrane filter dryer dries compressed air through a tubular drying membrane 2. The air then enters a columnar exhaust filter 701 through the outlet above the tubular drying membrane 2 and the flow port of the fourth filter holder 703. The columnar exhaust filter 701 performs precision filtration; it is a medical-grade bacterial filter that effectively removes bacteria and fine impurities from the compressed air. The filtered air is then discharged through the exhaust port 3. The structure of the upper connector 4 and the exhaust filter structure 7 facilitates assembly and disassembly, ensuring functionality and ease of operation. Furthermore, the exhaust port 3 of the fourth connector 404 is connected to an exhaust pipe 12 with a one-way valve, enabling unidirectional output of compressed air and preventing the entry of external gases or other substances.

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A membrane filter dryer, characterized in that, include: main housing; A cylindrical tubular drying membrane is installed inside the main housing; the upper and lower parts of the main housing are respectively sealed and connected to an upper connector seat with an exhaust port and a lower connector seat with an air inlet. An exhaust filter structure is sealed and connected to the upper connector seat, and a gas-liquid separation structure is sealed and connected to the lower connector seat. The exhaust filter structure and the gas-liquid separation structure are respectively connected to the upper and lower ends of the tubular drying membrane.

2. The membrane filter dryer according to claim 1, characterized in that, The lower connector includes: a lower body, the upper surface of which is provided with a first receiving shell and a first receiving ring located inside the first receiving shell, the first receiving shell being sealed to the lower part of the outer wall of the main housing, and the first receiving ring being sealed to the lower part of the tubular drying film; the lower surface of the lower body is provided with a second receiving shell and a second receiving ring located inside the second receiving shell, both the second receiving shell and the second receiving ring being sealed to the gas-liquid separation structure, and the air inlet being provided on the second receiving shell.

3. A membrane filter dryer according to claim 2, characterized in that, The gas-liquid separation structure includes: a first filter screen seat sealed below the second receiving ring; a first columnar filter screen connected to the second filter screen seat below the first filter screen seat; the first columnar filter screen communicating with the tubular drying membrane through the flow port of the first filter screen seat; the outer side of the first filter screen seat connected to the inner wall of the separation shell through a guide wheel with multiple inclined guide plates; and the open end of the top body of the separation shell sealed to the inner side of the second receiving shell.

4. A membrane filter dryer according to claim 3, characterized in that, The bottom of the separation shell is equipped with a drain outlet and a plugging structure for sealing the drain outlet.

5. A membrane filter dryer according to claim 4, characterized in that, The plugging structure includes: a stud that is slidably connected in the drain outlet, the top of the stud being connected to a plug that is sealed and locked inside the bottom surface of the separation shell, and the bottom of the stud being screwed with a nut for locking onto the lower surface of the separation shell.

6. A membrane filter dryer according to claim 1, characterized in that, The outer wall of the tubular drying membrane is mounted on the inner wall of the main housing via an annular seat.

7. A membrane filter dryer according to claim 1, characterized in that, The upper connector includes: an upper body, a third mounting shell and a third mounting ring located inside the third mounting shell on the lower surface of the upper body, the third mounting shell being sealed to the upper part of the outer wall of the main housing, and the third mounting ring being sealed to the upper part of the tubular drying membrane; a fourth mounting shell and a fourth mounting ring located inside the fourth mounting shell on the upper surface of the upper body, both the fourth mounting shell and the fourth mounting ring being sealed to the exhaust filter structure, and the exhaust port being located on the fourth mounting shell.

8. A membrane filter dryer according to claim 7, characterized in that, The exhaust filtration structure includes: a columnar exhaust filter screen and a third filter screen seat and a fourth filter screen seat installed at the upper and lower ends of the columnar exhaust filter screen. The fourth filter screen seat is sealed and connected to the fourth connecting ring. The columnar exhaust filter screen is connected to the tubular drying membrane through the flow port of the fourth filter screen seat. A top cover plate is sealed and connected above the third connecting shell. The top cover plate covers the third filter screen seat.

9. A membrane filter dryer according to claim 8, characterized in that, The columnar exhaust filter is a medical-grade bacterial filter.

10. A membrane filter dryer according to claim 7, characterized in that, The fourth housing has an exhaust pipe with a one-way valve connected to its exhaust port.

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