Automatic drainage device of drying machine

Abstract

The invention discloses an automatic drainage device of a drying machine, the drainage device is connected to a drainage port of the drying machine, the drainage device belongs to the technical field of drying machine accessories, the drainage device comprises a pollution discharge barrel, a hose is arranged above the pollution discharge barrel in a communicated mode, a connecting pipe is fixed on the hose, and the drainage device further comprises a connector. The connector is detachably connected with the water outlet, the connector is detachably connected with the connecting pipe, a visual water level gauge is installed on the sewage discharging barrel, a water discharging pipe is arranged below the sewage discharging barrel in a communicating mode, an electromagnetic valve is installed on the water discharging pipe, and the electromagnetic valve and the visual water level gauge are both electrically connected with a preset control system. According to the drainage device, full-automatic drainage is achieved through water level gauge detection, signal feedback and electromagnetic valve execution, manual intervention is not needed, the problem that traditional manual pollution discharge is low in efficiency is solved, the sealing ring at the end of the connecting pipe and the end face of the drainage opening are pressed and sealed, and leakage is effectively prevented. And the adjustable bolt on the lantern ring is matched with the cushion block, so that water outlets with different specifications can be firmly held, and auxiliary fixing and protection are provided.

Description

Technical Field

[0001] This invention belongs to the technical field of dryer accessories, and in particular relates to an automatic drainage device for dryers. Background Technology

[0002] Dryers (especially refrigerated and adsorption dryers in compressed air systems) continuously produce large amounts of condensate during operation. This condensate is not pure water, but contains solid impurities such as iron filings, dust, and particulate matter from pipe corrosion.

[0003] Traditional drainage methods have serious drawbacks:

[0004] 1. Manual operation is inefficient:

[0005] When using simple containers for collection, it is necessary to frequently check the water level manually and manually open the valve to drain the water. Maintenance is time-consuming and easy to forget, which may lead to overflow or the dryer alarming and shutting down due to water accumulation.

[0006] 2. Poor separation effect:

[0007] Ordinary water collection tanks lack effective separation structures, allowing solid impurities to accumulate and clog drain pipes or valves (especially solenoid valves), increasing maintenance costs.

[0008] 3. Lack of intelligent control:

[0009] Float-type mechanical drain valves are prone to jamming and failure, and cannot accurately control the timing of drainage, which can easily lead to:

[0010] High water level → overflow from inside the tank corrodes the equipment;

[0011] Frequent valve opening leads to energy waste and valve wear.

[0012] 4. Insufficient installation compatibility:

[0013] The locations of the drain outlets of dryers vary, and it is difficult to adjust the angle / height of the fixed connecting pipes, which can lead to hose bending, poor sealing, or mechanical stress damage to the interface.

[0014] To solve the above problems, an automatic drainage device for a dryer is provided.

[0015] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Summary of the Invention

[0016] To address the aforementioned problems, the present invention aims to provide an automatic drainage device for dryers. This device achieves fully automatic drainage through a process of "water level gauge detection → signal feedback → solenoid valve execution," eliminating the need for manual intervention and solving the problem of low efficiency in traditional manual drainage. The sealing ring at the end of the connecting pipe is pressed tightly against the drain outlet face to effectively prevent leakage. Adjustable bolts on the collar, in conjunction with washers, securely hold drain outlets of different sizes, providing auxiliary fixation and protection, ensuring the stability of the connection under various operating conditions, and preventing loosening.

[0017] To achieve the above objectives, the present invention proposes an automatic drainage device for a dryer. The drainage device is connected to the drain outlet of the dryer and includes a sludge bucket. A flexible hose is connected to the top of the sludge bucket, and a connecting pipe is fixed on the flexible hose. The drainage device also includes a connector. The connector and the drain outlet, as well as the connector and the connecting pipe, are detachably connected. A visual water level gauge is installed on the sludge bucket.

[0018] The bottom of the sewage tank is connected to a drain pipe, and a solenoid valve is installed on the drain pipe. The solenoid valve and the visual water level gauge are electrically connected to a preset control system. When the water level detected by the visual water level gauge reaches the preset value, the control system controls the solenoid valve to open to realize drainage. When the water level reaches 0, the control system controls the solenoid valve to close.

[0019] Furthermore, a groove is provided at the end of the connecting pipe away from the flexible hose, and a sealing ring is fixed in the groove.

[0020] The connector includes a collar with several bolts vertically mounted on it. The ends of the bolts are rotatably provided with pads for protecting the drain outlet. One end of the collar is rotatably provided with a drive ring, which is threadedly connected to the connecting pipe.

[0021] Furthermore, an adjusting bracket is connected between the connector and the sewage tank.

[0022] Furthermore, the adjusting bracket includes a first connecting strip fixed to the sewage tank and a second connecting strip fixed to the collar. A screw is fixed on the second connecting strip, and an installation hole is provided on the first connecting strip. The screw is fitted into the installation hole, and a locking nut is rotatably provided on the screw.

[0023] Furthermore, the sewage tank includes a tank body, a cover is installed on the top of the tank body, and a hose is installed on the cover.

[0024] Furthermore, the upper inner wall of the barrel is provided with symmetrically distributed slots, and the sewage barrel also includes a strip-shaped water receiving groove, with both ends of the water receiving groove respectively inserted into the two slots. The water receiving groove is located directly below the outlet of the hose.

[0025] Furthermore, a filter plate is installed inside the barrel.

[0026] Furthermore, the filter plate has an inverted V-shaped cross-section, with the highest point of the filter plate located directly below the water receiving tank.

[0027] Furthermore, several support blocks for supporting the filter plate are fixed inside the barrel.

[0028] Furthermore, the visible water level gauge is an electromagnetic flap level gauge.

[0029] The automatic drainage device for a dryer proposed in this invention can bring the following beneficial effects:

[0030] 1. The drainage device of the present invention achieves fully automatic drainage through "water level gauge detection → signal feedback → solenoid valve execution", without the need for manual intervention, thus solving the problem of low efficiency of traditional manual sewage discharge.

[0031] 2. The sealing ring at the end of the connecting pipe of the drainage device of the present invention is pressed tightly against the end face of the drain outlet to effectively prevent leakage. The adjustable bolt on the collar, together with the washer, can firmly hold the drain outlet (or flange) of different specifications, providing auxiliary fixation and protection, ensuring the stability of the connection under various working conditions, and preventing loosening.

[0032] 3. The adjustable bracket design of the drainage device of this invention (screw, locking nut and connecting strip) allows users to easily adjust the height and angle of the sewage tank relative to the drain outlet of the dryer according to the on-site installation space, which greatly improves the installation adaptability and flexibility of the device.

[0033] 4. The drainage device of this invention is designed with a water receiving trough to receive and disperse the falling water flow, effectively avoiding splashing, disturbance and secondary entrainment caused by the water flow directly impacting the filter plate, thus improving the separation effect. The inverted V-shaped filter plate can increase the contact area and path, significantly increasing the contact area and flow path length between water and filter medium, guiding the water flow from the high point to both sides slowly, reducing the flow rate, creating favorable conditions for impurity sedimentation and oil-water separation, and can effectively intercept solid particles, rust and other impurities in the condensate, preventing them from entering the bottom of the tank or clogging the subsequent pipeline.

[0034] 5. The drainage device of this invention is equipped with a visual water level gauge such as an electromagnetic flap level gauge, which can clearly and in real time display the liquid level in the sewage tank. Operators can accurately grasp the water accumulation without opening the lid, facilitating automatic drainage at the appropriate water level and avoiding the risk of overflow or equipment shutdown due to full water.

[0035] 6. The drain device of this invention has detachable connections between the connector, drain outlet, and connecting pipe, which facilitates installation, disassembly, and maintenance. The sewage tank adopts a tank body + cover design and is equipped with a detachable water receiving trough and filter plate, which makes it convenient to open and clean the trapped impurities and oil stains regularly, as well as clean or replace the filter plate. Maintenance is simple and quick. Attached Figure Description

[0036] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0037] Figure 1 This is a schematic diagram of the structure of an automatic drainage device and drain outlet for a dryer according to the present invention.

[0038] Figure 2 This is a cross-sectional structural diagram of the connection position between the connecting pipe and the connector of the present invention.

[0039] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle.

[0040] Figure 4 This is a schematic diagram of the internal structure of the sewage discharge bucket of the present invention.

[0041] In the diagram: 1. Sewage bucket; 2. Hose; 3. Connector; 4. Visual water level gauge; 5. Adjustable bracket; 10. Drain outlet; 11. Bucket body; 12. Cover; 13. Drain pipe; 14. Solenoid valve; 15. Slot; 16. Water receiving trough; 17. Filter plate; 18. Support block; 21. Connecting pipe; 22. Groove; 31. Collar; 32. Bolt; 33. Pad; 34. Drive ring; 51. First connecting strip; 52. Second connecting strip; 53. Screw; 54. Locking nut. Detailed Implementation

[0042] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0043] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 communication connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] An embodiment of the present invention provides an automatic drainage device for a dryer, wherein the drainage device is connected to the drain outlet 10 of the dryer, such as... Figure 1 As shown, the drainage device includes a sewage tank 1, with a flexible hose 2 connected to the top of the sewage tank 1. A connecting pipe 21 is fixed to the flexible hose 2, such as... Figure 2 As shown, the drainage device also includes a connector 3. The connector 3 and the drain outlet 10 and the connector 3 and the connecting pipe 21 are detachably connected. An adjusting bracket 5 is connected between the connector 3 and the sewage tank 1. A visual water level gauge 4 is installed on the sewage tank 1. The visual water level gauge 4 is preferably an electromagnetic flap level gauge.

[0048] A drain pipe 13 is connected to the bottom of the sewage tank 1. A solenoid valve 14 is installed on the drain pipe 13. The solenoid valve 14 and the visual water level gauge 4 are electrically connected to a preset control system. When the water level detected by the visual water level gauge 4 reaches the preset value, the control system controls the solenoid valve 14 to open and drain the water. When the water level reaches 0, the control system controls the solenoid valve 14 to close.

[0049] A groove 22 is provided at the end of the connecting tube 21 away from the hose 2, and a sealing ring is fixed in the groove 22.

[0050] Connector 3 includes collar 31, such as Figure 3As shown, several bolts 32 are vertically mounted on the collar 31. The ends of the bolts 32 are rotatably provided with pads 33 for protecting the drain outlet 10. One end of the collar 31 is rotatably provided with a drive ring 34, and the drive ring 34 is threadedly connected to the connecting pipe 21.

[0051] The adjusting bracket 5 includes a first connecting bar 51 fixed on the sewage tank 1 and a second connecting bar 52 fixed on the collar 31. A screw 53 is fixed on the second connecting bar 52. An installation hole is provided on the first connecting bar 51. The screw 53 is fitted into the installation hole. A locking nut 54 is rotatably provided on the screw 53.

[0052] The sewage tank 1 includes a tank body 11, a cover 12 is installed on the top of the tank body 11, and a hose 2 is installed on the cover 12.

[0053] The inner wall of the barrel 11 has symmetrically distributed slots 15, such as... Figure 4 As shown, the sewage tank 1 also includes a strip-shaped water receiving trough 16. The two ends of the water receiving trough 16 are respectively locked in two slots 15. The water receiving trough 16 is located directly below the outlet of the hose 2. A filter plate 17 is installed inside the tank body 11. The cross-section of the filter plate 17 is inverted V-shaped. Several support blocks 18 for supporting the filter plate 17 are fixed inside the tank body 11. The highest point of the filter plate 17 is located directly below the water receiving trough 16.

[0054] Working principle:

[0055] Connection, fixing, and sealing:

[0056] The connector 3 is the core connecting component between the drainage device and the dryer drain port 10. The collar 31 is fitted on the outside of the dryer drain port 10. The end pad 33 is pushed by the adjusting bolt 32 to clamp the drain port 10, thereby achieving a stable fixation between the connector and the drain port.

[0057] The drive ring 34 at one end of the collar 31 is threaded to the connecting pipe 21. After tightening, the connecting pipe 21 and the connector 3 can be tightly fixed.

[0058] The sealing ring inside the groove 22 further ensures the sealing of the connection and prevents water leakage during drainage.

[0059] Water flow guidance and initial buffering:

[0060] Wastewater discharged from the dryer flows out of drain outlet 10, then sequentially through connector 3 and connecting pipe 21 into hose 2, and finally enters wastewater tank 1 through the outlet of hose 2.

[0061] A water receiving trough 16 is provided directly below the outlet of the hose 2 on the cover 12 of the sewage bucket 1. Sewage first falls into the water receiving trough 16, which can prevent the water flow from directly impacting the inside of the bucket and play a role in buffering and concentrating the water flow.

[0062] The adjusting bracket 5, through the cooperation of the first connecting bar 51, the second connecting bar 52, the screw 53, and the locking nut 54, can flexibly adjust the relative position (such as height and angle) between the drain bucket 1 and the connector 3, ensuring that the drain bucket 1 can always be vertical, so that it can be used for dryers of different models and with different drain outlet 10 positions.

[0063] Filtration and purification:

[0064] The wastewater flowing out of the water tank 16 will fall precisely to the highest point of the filter plate 17. The inverted V-shaped structure causes the wastewater to flow along both sides of the filter plate, increasing the contact area between the wastewater and the filter plate.

[0065] The filter plate 17 can intercept impurities in the sewage (such as debris and particulate matter generated during the drying process). The impurities are trapped on the surface of the filter plate, and the filtered clean water flows through the gaps in the filter plate to the lower part of the barrel 11 of the sewage tank 1.

[0066] Water level monitoring and sewage discharge:

[0067] The visible water level gauge 4 on the sewage tank 1 monitors the water level in the tank in real time.

[0068] When the water level reaches the preset height, the water will drain automatically. When it is observed that a lot of impurities have accumulated, the sewage tank can be removed for cleaning (the filter plate 17 can be removed from the support block 18, and the water tank 16 can be removed from the slot 15 for easy cleaning of impurities separately).

[0069] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0070] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. An automatic drainage device for a dryer, the drainage device being connected to the drain outlet (10) of the dryer, the drainage device comprising a wastewater tank (1), characterized in that, The upper part of the sewage tank (1) is connected to a flexible hose (2), and a connecting pipe (21) is fixed on the flexible hose (2). The drainage device also includes a connector (3). The connector (3) and the drain outlet (10) and the connector (3) and the connecting pipe (21) are detachably connected. A visual water level gauge (4) is installed on the sewage tank (1). The bottom of the sewage tank (1) is connected to a drain pipe (13), and a solenoid valve (14) is installed on the drain pipe (13). The solenoid valve (14) and the visual water level gauge (4) are electrically connected to a preset control system. When the water level detected by the visual water level gauge (4) reaches the preset value, the control system controls the solenoid valve (14) to open and realize drainage. When the water level reaches 0, the control system controls the solenoid valve (14) to close.

2. The automatic drainage device for a dryer according to claim 1, characterized in that, The connecting pipe (21) has a groove (22) at the end away from the hose (2), and a sealing ring is fixed in the groove (22); The connector (3) includes a collar (31), on which several bolts (32) are vertically mounted. The ends of the bolts (32) are rotatably provided with pads (33) for protecting the drain outlet (10). One end of the collar (31) is rotatably provided with a drive ring (34), which is threadedly connected to the connecting pipe (21).

3. The automatic drainage device for a dryer according to claim 2, characterized in that, An adjusting bracket (5) is connected between the connector (3) and the sewage tank (1).

4. The automatic drainage device for a dryer according to claim 3, characterized in that, The adjusting bracket (5) includes a first connecting strip (51) fixed on the sewage tank (1) and a second connecting strip (52) fixed on the collar (31). A screw (53) is fixed on the second connecting strip (52). An installation hole is provided on the first connecting strip (51). The screw (53) is fitted into the installation hole. A locking nut (54) is rotatably provided on the screw (53).

5. An automatic drainage device for a dryer according to claim 4, characterized in that, The sewage tank (1) includes a tank body (11), a cover (12) is installed on the top of the tank body (11), and a hose (2) is installed on the cover (12).

6. The automatic drainage device for a dryer according to claim 5, characterized in that, The upper inner wall of the barrel (11) is provided with symmetrically distributed slots (15). The sewage barrel (1) also includes a strip-shaped water receiving groove (16). The two ends of the water receiving groove (16) are respectively locked in the two slots (15). The water receiving groove (16) is located directly below the outlet of the hose (2).

7. An automatic drainage device for a dryer according to claim 6, characterized in that, A filter plate (17) is installed inside the barrel (11).

8. An automatic drainage device for a dryer according to claim 7, characterized in that, The filter plate (17) has an inverted V-shaped cross section, and the highest point of the filter plate (17) is located directly below the water receiving tank (16).

9. An automatic drainage device for a dryer according to claim 8, characterized in that, The barrel (11) is fixed with several support blocks (18) for supporting the filter plate (17).

10. An automatic drainage device for a dryer according to claim 9, characterized in that, The visible water level gauge (4) is an electromagnetic flap level gauge.

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