Wastewater discharge device of refrigeration dryer

Abstract

The invention relates to the technical field of refrigeration dryers, and discloses a refrigeration dryer wastewater discharge device which comprises a machine body, a condensation assembly, a cooling circulation assembly and a temporary storage tank are fixedly installed in the machine body, and the condensation assembly communicates with a refrigerant inlet pipe and a refrigerant outlet pipe. When the water level in the temporary storage tank reaches a threshold value set by the water level monitoring assembly, the rotating rod rotates and drives the cleaning rod to rotate synchronously, then the waste water in the temporary storage tank is stirred, precipitates in the water can be mixed into the waste water again in the stirring process, and the waste water is recycled. The cleaning rod is attached to the bottom plate of the temporary storage tank, so that sediments on the bottom plate of the temporary storage tank can be scraped off by the cleaning rod, the purpose of cleaning the bottom plate is achieved, the sediments are mixed into the wastewater again and discharged together, and the wastewater and impurities can be ensured to be completely discharged out of the temporary storage tank.

Description

Technical Field

[0001] The present invention relates to the technical field of cold dryers, and particularly relates to a waste water discharge device for a cold dryer. Background Art

[0002] A cold dryer uses a main evaporator to cool and dewater compressed air. The whole system includes a refrigeration compressor, a condenser, and a throttling expansion unit as a refrigeration cycle to provide refrigeration capacity for the evaporator. After the compressed air passes through the evaporator, the temperature drops to nearly 2°C, and the gaseous water in the compressed air is converted into liquid water for separation and drainage, so as to obtain dry and low-temperature compressed air.

[0003] The separated liquid water will accumulate at the bottom of the gas-water separator to form waste water. To prevent the waste water from mixing back into the compressed air and increasing the humidity of the compressed air, it is necessary to drain the waste water in time. An automatic drain is installed at the bottom of the gas-water separator of the cold dryer. It uses principles such as a float ball and electronic induction to detect the water level. When the water level reaches a certain height, the automatic drain will automatically open the drain port to drain the waste water. After the water level drops to a certain extent, the drain port will automatically close.

[0004] However, when the waste water is concentrated at the bottom of the container, the sundries and dirt mixed in the waste water will precipitate to the bottom of the container due to gravity. During the process of the automatic drain discharging the waste water, usually only the upper-layer liquid water can be discharged, and the sundries and dirt deposited at the bottom of the container cannot be effectively taken away. Over time, the impurities at the bottom of the container will accumulate more and more. These continuously accumulating impurities will not only affect the normal use of the container, such as reducing the separation efficiency of the gas-water separator, but also block the drainage pipe, resulting in poor drainage or even inability to drain, ultimately affecting the overall operating performance of the cold dryer and shortening the service life of the equipment. Based on this, the present invention purposefully provides a waste water discharge device for a cold dryer that can take away the sundries and dirt at the bottom of the container when draining water. Summary of the Invention

[0005] The purpose of the present invention is to provide a waste water discharge device for a cold dryer to solve the technical problems in the prior art in view of the deficiencies of the prior art.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A waste water discharge device for a cold dryer includes:

[0008] The body, inside which a condensation component, a cooling circulation component and a storage tank are fixedly installed. A refrigerant inlet pipe and a refrigerant outlet pipe are communicated with the condensation component. The refrigerant inlet pipe is communicated with the outlet of the cooling circulation component, and the refrigerant outlet pipe is communicated with the inlet of the cooling circulation component. An air inlet pipe and an air outlet pipe are communicated with the condensation component. The air inlet pipe introduces humid air into the condensation component for condensation, and the air outlet pipe discharges compressed air from the condensation component. The bottom end of the condensation component is communicated with the storage tank through an input pipe, and the input pipe introduces condensed water into the storage tank. A drain pipe is communicated with the bottom end of the storage tank. A driving component and a water level monitoring component are arranged inside the storage tank, and the driving component is connected with the water level monitoring component;

[0009] A rotating rod, which is rotatably installed inside the storage tank. A cleaning rod is fixedly installed at the bottom end of the rotating rod, and the cleaning rod is attached to the bottom plate of the storage tank. When the water level monitoring component monitors that the water level inside the storage tank exceeds the threshold value, it drives the rotating rod to rotate through the driving component.

[0010] As a further scheme of the present invention: The water level monitoring component includes a fixed pipe, a communicating pipe, a floating plate, a floating bladder, a thimble and a controller switch. The fixed pipe is fixedly installed inside the body, and a first chamber and a second chamber are opened inside it. The bottom ends of the first chamber and the second chamber are communicated with each other. The second chamber is communicated with the drain pipe through an emptying pipe. The storage tank is communicated with the first chamber through the communicating pipe. The floating plate is slidably installed inside the second chamber. The floating bladder is arranged at the bottom end of the floating plate. The thimble is fixedly installed on the floating plate. The controller switch is fixedly installed on the top plate of the second chamber. The controller switch is connected with the driving component. When the thimble abuts against the controller switch, the controller switch drives the rotating rod to rotate through the driving component.

[0011] As a further scheme of the present invention: The water level monitoring component further includes a spring. One end of the spring is fixedly connected with the top plate of the second chamber, and the other end of the spring is fixedly connected with the floating plate. The pre-tightening force of the spring makes the floating plate away from the controller switch.

[0012] As a further scheme of the present invention: The driving component includes a fixed cap, a round rod, a turntable, a vertical rod and a lifting block. A lifting block is arranged inside the storage tank. The rotating rod is rotatably installed on the lifting block. The fixed cap is coaxially fixedly installed at the top end of the rotating rod. Two round rods are fixedly installed on the outer circular surface of the fixed cap, and the two round rods are symmetrically arranged. The turntable is rotatably installed on the top plate of the storage tank, and the turntable is coaxially arranged with the fixed cap. The turntable is driven to rotate by a first output source arranged inside the storage tank. The first output source is connected with the controller switch. Two vertical rods are fixedly installed at the bottom of the turntable, and the two vertical rods are symmetrically arranged. There is a round rod between the two vertical rods, and the length of the round rod is not less than the radius of the turntable.

[0013] As a further solution of the present invention: The driving assembly further includes a fixed frame, a threaded rod, and a circular ring. The circular ring is sleeved on the outer surface of the rotating rod and fixedly connected to it. The circular ring is rotatably installed in the lifting block. The fixed frame is fixedly installed on the top plate of the temporary storage tank. The lifting block is slidably installed on the fixed frame. The threaded rod is rotatably installed in the fixed frame, and the threaded rod is threadedly connected to the lifting block. The threaded rod is driven to rotate by a second output source built in the fixed frame, and the second output source is connected to the controller switch.

[0014] As a further solution of the present invention: A detachable filter screen is installed in the connecting pipe.

[0015] As a further solution of the present invention: The horizontal height of the connection between the input pipe and the temporary storage tank is not higher than the horizontal height of the connection between the connecting pipe and the temporary storage tank.

[0016] As a further solution of the present invention: When the thimble abuts against the controller switch, the horizontal height of the floating plate is not higher than the horizontal height of the fixed frame.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. In the present invention, during the operation of the condensation assembly, the generated wastewater will gather in the temporary storage tank. When the water level in the temporary storage tank reaches the threshold set by the water level monitoring assembly, the rotating rod will drive the cleaning rod to rotate synchronously while rotating, thereby stirring the wastewater in the temporary storage tank. This stirring process can remix the sediment in the water into the wastewater. And because the cleaning rod is in contact with the bottom plate of the temporary storage tank, the cleaning rod can also scrape the sediment on the bottom plate of the temporary storage tank to achieve the purpose of cleaning the bottom plate. In this way, remixing the sediment into the wastewater and discharging it together can ensure that the wastewater and impurities are completely discharged from the temporary storage tank;

[0019] 2. In the present invention, the wastewater entering the input pipe will cause the liquid levels of the temporary storage tank, the first chamber, and the second chamber to rise simultaneously. Until the thimble abuts against the controller switch, the controller switch will drive the rotating rod to rotate through the driving assembly, thereby stirring and mixing the sediment in the water of the temporary storage tank into the wastewater, and then being uniformly discharged from the drain pipe. Such a design ensures that the wastewater will be injected from the bottom of the second chamber through the connection of the first chamber and the second chamber. And the second chamber is located outside the temporary storage tank. When the rotating rod stirs the wastewater, with the buffering of the first chamber, the fluctuation and change of the wastewater liquid level in the temporary storage tank will not affect the heights of the floating plate and the floating bladder, ensuring that the thimble and the controller switch are always in contact, so that the rotating rod and the cleaning rod can fully stir the wastewater in the temporary storage tank;

[0020] 3. In the present invention, through the design that the rotating rod can be lifted, the rotating rod can be raised, so that the cleaning rod is away from the bottom plate of the temporary storage tank. At this time, the wastewater in the temporary storage tank is discharged through the drain pipe, avoiding the problem that the cleaning rod is close to the bottom plate of the temporary storage tank and blocking the drain port. And at this time, the rotation of the rotating rod can make the wastewater in the temporary storage tank generate a vortex, achieving the effect of accelerating drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic diagram of the sectional structure of the body in the present invention;

[0024] Figure 3 is a schematic diagram of the sectional structure of the temporary storage tank in the present invention;

[0025] Figure 4 is in the present invention Figure 3 is an enlarged schematic diagram of part A;

[0026] Figure 5 is a schematic diagram of the sectional structure of the lifting block in the present invention;

[0027] Figure 6 is in the present invention Figure 3 is a schematic diagram of a front view;

[0028] Figure 7 is a schematic diagram of the lifting block rising in the present invention.

[0029] In the figure: 1. Body; 2. Condensation component; 201. Intake pipe; 202. Exhaust pipe; 203. Refrigerant inlet pipe; 204. Refrigerant outlet pipe; 3. Cooling circulation component; 4. Temporary storage tank; 401. Input pipe; 402. Connecting pipe; 403. Drain pipe; 5. Fixed pipe; 501. First chamber; 502. Second chamber; 503. Drain pipe; 6. Rotating rod; 601. Cleaning rod; 7. Fixed cap; 8. Round rod; 9. Turntable; 10. Vertical rod; 11. Fixed frame; 12. Lifting block; 13. Ring; 14. Threaded rod; 15. Floating plate; 16. Floating bladder; 17. Thimble; 18. Spring; 19. Controller switch; 20. Filter screen. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0031] Please refer to Figures 1-7 As shown, the present invention is a waste water discharge device for a cold dryer, including:

[0032] A machine body 1, in which a condensation component 2, a cooling circulation component 3 and a temporary storage tank 4 are fixedly installed. A refrigerant inlet pipe 203 and a refrigerant outlet pipe 204 are communicated with the condensation component 2. The refrigerant inlet pipe 203 is communicated with the outlet of the cooling circulation component 3, and the refrigerant outlet pipe 204 is communicated with the inlet of the cooling circulation component 3. An air inlet pipe 201 and an air outlet pipe 202 are communicated with the condensation component 2. The air inlet pipe 201 introduces humid air into the condensation component 2 for condensation, and the air outlet pipe 202 discharges compressed air from the condensation component 2. The bottom end of the condensation component 2 is communicated with the temporary storage tank 4 through an input pipe 401, and the input pipe 401 introduces condensed water into the temporary storage tank 4. A drain pipe 403 is communicated with the bottom end of the temporary storage tank 4. A driving component and a water level monitoring component are arranged in the temporary storage tank 4, and the driving component is connected with the water level monitoring component;

[0033] A rotating rod 6 is rotatably installed in the temporary storage tank 4. A cleaning rod 601 is fixedly installed at the bottom end of the rotating rod 6, and the cleaning rod 601 is attached to the bottom plate of the temporary storage tank 4. When the water level monitoring component monitors that the water level in the temporary storage tank 4 exceeds the threshold, it drives the rotating rod 6 to rotate through the driving component.

[0034] In one case of this embodiment, it should be noted that the condensation component 2 of the present invention includes a refrigeration compressor, a heat exchanger, a cooling fan, etc., and the cooling circulation component 3 includes a condenser, a throttling expansion unit, etc. The above components are all prior arts, and the present invention has not improved them. Therefore, it is not necessary to disclose their specific mechanical structures and circuit structures, which does not affect the integrity of the present invention.

[0035] The working principle of the present invention: The humid air is introduced into the condensation component 2 through the air inlet pipe 201. After cooling, heat exchange, and gas-liquid separation, the compressed and dry gas is discharged through the air outlet pipe 202. The heat exchange of the humid air is mainly achieved by injecting the refrigerant medium into the refrigerant inlet pipe 203 through the cooling circulation component 3, and then performing heat exchange with the gas to be compressed and dried in the condensation component 2. Then, the heated refrigerant medium circulates from the refrigerant outlet pipe 204 to the cooling circulation component 3, and after cyclic cooling, it is injected into the refrigerant inlet pipe 203 again for circulation;

[0036] The liquid separated from the gas-liquid mixture then flows from the input pipe 401 at the bottom of the condensation assembly 2 into the temporary storage tank 4. As the condensation assembly 2 operates, more and more wastewater flows into the temporary storage tank 4 through the input pipe 401, and the water level in the temporary storage tank 4 gradually rises. When the water level exceeds the threshold of the water level monitoring assembly, the water level monitoring assembly drives the rotating rod 6 to rotate through the driving assembly. The rotating rod 6 will drive the cleaning rod 601 to rotate synchronously, thereby agitating the wastewater in the temporary storage tank 4, remixing the sediment in the water back into the wastewater, and the cleaning rod 601 is in contact with the bottom plate of the temporary storage tank 4. In this way, the cleaning rod 601 will also scrape off the sediment on the bottom plate of the temporary storage tank 4 for cleaning purposes. After the rotating rod 6 rotates for a preset time to ensure that the sediment is fully mixed into the wastewater, the drain pipe 403 is then opened to discharge the wastewater and impurities together, avoiding the problem of impurities settling in the temporary storage tank 4.

[0037] As Figures 1-6 shown, as a preferred embodiment of the present invention, the water level monitoring assembly includes a fixed pipe 5, a connecting pipe 402, a floating plate 15, a floating bladder 16, a thimble 17, and a controller switch 19. The fixed pipe 5 is fixedly installed in the machine body 1, and a first chamber 501 and a second chamber 502 are formed therein. The bottom ends of the first chamber 501 and the second chamber 502 are communicated. The second chamber 502 is communicated with the drain pipe 403 through an emptying pipe 503. The temporary storage tank 4 is communicated with the first chamber 501 through the connecting pipe 402. The floating plate 15 is slidably installed in the second chamber 502. The floating bladder 16 is arranged at the bottom end of the floating plate 15. The thimble 17 is fixedly installed on the floating plate 15. The controller switch 19 is fixedly installed on the top plate of the second chamber 502. The controller switch 19 is connected to the driving assembly. When the thimble 17 abuts against the controller switch 19, the controller switch 19 drives the rotating rod 6 to rotate through the driving assembly.

[0038] In actual application of this embodiment, as the condensation component 2 operates, more and more wastewater flows into the temporary storage tank 4 through the input pipe 401, and the water level in the temporary storage tank 4 gradually rises to the connection point between the communication pipe 402 and the temporary storage tank 4. After that, the wastewater will enter the first chamber 501 through the communication pipe 402. The first chamber 501 communicates with the bottom of the second chamber 502, so that the first chamber 501 and the second chamber 502 form a "U"-shaped communicating vessel, and the liquid levels of the first chamber 501 and the second chamber 502 are always kept flat. As the liquid level in the second chamber 502 rises, the buoyancy of the water causes the floating bladder 16 and the floating plate 15 to move upward, so that the ejector pin 17 gradually approaches the controller switch 19. When the liquid levels in the first chamber 501 and the second chamber 502 also reach the liquid level height in the temporary storage tank 4, the temporary storage tank 4 and the second chamber 502 can also be regarded as a "U"-shaped communicating vessel. At this time, the wastewater entering through the input pipe 401 will cause the liquid levels of the temporary storage tank 4, the first chamber 501 and the second chamber 502 to rise simultaneously. Until the ejector pin 17 abuts against the controller switch 19, the controller switch 19 will drive the rotating rod 6 to rotate through the driving component, so as to stir and mix the sediment in the water of the temporary storage tank 4 into the wastewater, and then it will be discharged uniformly from the drain pipe 403. Such a design ensures that the wastewater will be injected from the bottom of the second chamber 502 through the connection between the first chamber 501 and the second chamber 502, and the second chamber 502 is located outside the temporary storage tank 4. When the rotating rod 6 stirs the wastewater, plus the buffering of the first chamber 501, the fluctuations and changes of the wastewater liquid level in the temporary storage tank 4 will not affect the heights of the floating plate 15 and the floating bladder 16, ensuring that the ejector pin 17 and the controller switch 19 are always in contact, so that the rotating rod 6 and the cleaning rod 601 can fully stir the wastewater in the temporary storage tank 4.

[0039] As Figures 1-6 shown, as a preferred embodiment of the present invention, the water level monitoring component further includes a spring 18. One end of the spring 18 is fixedly connected to the top plate of the second chamber 502, and the other end of the spring 18 is fixedly connected to the floating plate 15. The pre-tightening force of the spring 18 causes the floating plate 15 to be away from the controller switch 19.

[0040] In actual application of this embodiment, through the setting of the spring 18, when the operation of discharging wastewater is carried out, once the water level in the second chamber 502 drops, then the spring 18 will restore its elasticity, ensuring that the floating plate 15 can drop, so that the spring 18 is away from the controller switch 19, avoiding the problem that the spring 18 always abuts against the controller switch 19.

[0041] As Figures 1-7As shown, as a preferred embodiment of the present invention, the driving assembly includes a fixing cap 7, a round rod 8, a turntable 9, a vertical rod 10, and a lifting block 12. The lifting block 12 is arranged in the temporary storage tank 4. The rotating rod 6 is rotatably installed on the lifting block 12. The fixing cap 7 is coaxially and fixedly installed at the top end of the rotating rod 6. Both round rods 8 are fixedly installed on the outer cylindrical surface of the fixing cap 7, and the two round rods 8 are symmetrically arranged. The turntable 9 is rotatably installed on the top plate of the temporary storage tank 4, and the turntable 9 is coaxially arranged with the fixing cap 7. The turntable 9 is driven to rotate by a first output source built in the temporary storage tank 4. The first output source is connected to the controller switch 19. Both vertical rods 10 are fixedly installed at the bottom of the turntable 9, and the two vertical rods 10 are symmetrically arranged. There is a round rod 8 between the two vertical rods 10, and the length of the round rod 8 is not less than the radius of the turntable 9.

[0042] In one case of this embodiment, the first output source can be selected from components such as a servo motor and a servo motor, and other mechanisms capable of realizing rotational motion can also be selected. This embodiment does not specifically limit this here.

[0043] In the actual application of this embodiment, when the ejector pin 17 abuts against the controller switch 19, the controller switch 19 drives the turntable 9 to rotate through the first output source. The turntable 9 drives the vertical rod 10 to rotate. The length of the round rod 8 is not less than the radius of the turntable 9, and there is a round rod 8 between the two vertical rods 10. This means that the vertical rod 10 will definitely abut against the round rod 8 when rotating, so that the round rod 8 can be driven to rotate synchronously, thereby causing the fixing cap 7 and the rotating rod 6 to rotate. The rotation of the rotating rod 6 will drive the cleaning rod 601 to rotate, thereby stirring the wastewater in the temporary storage tank 4. The cleaning rod 601 is attached to the bottom plate of the temporary storage tank 4, and then the sediment deposited on the bottom plate of the temporary storage tank 4 is scraped off and dissolved into the wastewater, and then discharged together through the drain pipe 403.

[0044] As Figures 1-7 As shown, as a preferred embodiment of the present invention, the driving assembly further includes a fixing frame 11, a threaded rod 14, and a ring 13. The ring 13 is sleeved on the outer cylindrical surface of the rotating rod 6 and is fixedly connected to it. The ring 13 is rotatably installed in the lifting block 12. The fixing frame 11 is fixedly installed on the top plate of the temporary storage tank 4. The lifting block 12 is slidably installed on the fixing frame 11. The threaded rod 14 is rotatably installed in the fixing frame 11, and the threaded rod 14 is threadedly connected to the lifting block 12. The threaded rod 14 is driven to rotate by a second output source built in the fixing frame 11. The second output source is connected to the controller switch 19.

[0045] In one case of this embodiment, the second output source can be selected from components such as a servo motor and a servo motor, and other mechanisms capable of realizing rotational motion can also be selected. This embodiment does not specifically limit this here.

[0046] In actual application of this embodiment, the threaded rod 14 is driven to rotate by the second output source. The threaded rod 14 drives the lifting block 12 to lift, thereby driving the rotating rod 6 to lift. When the rotating rod 6 rises, the round rod 8 on the fixed cap 7 also changes its position on the vertical rod 10, but the contact relationship between the round rod 8 and the vertical rod 10 remains unchanged. In this way, the rotating rod 6 can be lifted, so that the cleaning rod 601 is away from the bottom plate of the temporary storage tank 4. At this time, the wastewater in the temporary storage tank 4 is discharged through the drain pipe 403, avoiding the problem that the cleaning rod 601 is close to the bottom plate of the temporary storage tank 4 and blocking the drain opening. And at this time, the rotation of the rotating rod 6 can make the wastewater in the temporary storage tank 4 generate a vortex, achieving the effect of accelerating drainage.

[0047] As Figures 1-6 shown, as a preferred embodiment of the present invention, a detachable filter net 20 is installed in the connecting pipe 402.

[0048] In actual application of this embodiment, by setting the filter net 20, it can prevent impurities from entering the first chamber 501, avoiding the problem that there are sediments in the fixed pipe 5 when discharging the wastewater from the first chamber 501 and the second chamber 502 later. And the detachable setting can ensure the filtering effect of the filter net 20.

[0049] As Figures 1-6 shown, as a preferred embodiment of the present invention, the horizontal height of the connection between the input pipe 401 and the temporary storage tank 4 is not higher than the horizontal height of the connection between the connecting pipe 402 and the temporary storage tank 4.

[0050] In actual application of this embodiment, when the water level in the temporary storage tank 4 rises to the position connected to the connecting pipe 402, the water will flow into the first chamber 501 from the connecting pipe 402. The horizontal height of the connection between the input pipe 401 and the temporary storage tank 4 is lower than or equal to the horizontal height of the connection between the connecting pipe 402 and the temporary storage tank 4. In this way, the water is injected below the original water level, which can avoid the situation of water splashing and water flow being disturbed due to the water inlet being higher than the liquid level, and further prevent the impurities in the water from being stirred up and entering the connecting pipe 402.

[0051] As Figures 1-6 shown, as a preferred embodiment of the present invention, when the thimble 17 abuts against the controller switch 19, the horizontal height of the floating plate 15 is not higher than the horizontal height of the fixed frame 11.

[0052] In actual application of this embodiment, as Figure 6Taking the shown example, at this time, the rising water level causes the floating bladder 16 and the floating plate 15 to float, so that the thimble 17 abuts against the controller switch 19, thereby opening the drainage. At this time, the floating plate 15 is the highest water level, and the horizontal height of the floating plate 15 is not higher than the horizontal height of the fixed frame 11. This means that the water in the temporary storage tank 4 will not submerge components such as the fixed frame 11, the lifting block 12, the fixed cap 7, the round rod 8, and the vertical rod 10, so that the above components will not be wetted by water, extending the service life of the components.

[0053] The above has described in detail an embodiment of the present invention, but the described content is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equal changes and improvements made according to the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. A cold dryer wastewater discharge device, characterized in that: include: A machine body (1), wherein a condensing assembly (2), a cooling circulation assembly (3) and a temporary storage tank (4) are fixedly installed in the machine body (1); a refrigerant inlet pipe (203) and a refrigerant outlet pipe (204) are connected to the condensing assembly (2); the refrigerant inlet pipe (203) and the outlet of the cooling circulation assembly (3) are connected; the refrigerant outlet pipe (204) and the inlet of the cooling circulation assembly (3) are connected; an air inlet pipe (201) and an air outlet pipe (202) are connected to the condensing assembly (2); The air pipe (201) introduces moist air into the condensation component (2) for condensation, and the air outlet pipe (202) discharges compressed air out of the condensation component (2). The bottom end of the condensation component (2) is connected to the temporary storage tank (4) through the input pipe (401). The input pipe (401) introduces condensed water into the temporary storage tank (4). The bottom end of the temporary storage tank (4) is connected to a drain pipe (403). A drive component and a water level monitoring component are arranged in the temporary storage tank (4), and the drive component is connected to the water level monitoring component. A rotating rod (6) is rotatably mounted in the temporary storage tank (4); a cleaning rod (601) is fixedly mounted at the bottom end of the rotating rod (6); the cleaning rod (601) is in contact with the bottom plate of the temporary storage tank (4); when the water level monitoring component detects that the water level in the temporary storage tank (4) exceeds a threshold value, the driving component drives the rotating rod (6) to rotate.

2. A cold dryer wastewater discharge device according to claim 1, characterized in that: The water level monitoring assembly comprises a fixed pipe (5), a connecting pipe (402), a floating plate (15), a floating bag (16), a pin (17) and a controller switch (19); the fixed pipe (5) is fixedly installed in the body (1) and has a first chamber (501) and a second chamber (502) therein; the first chamber (501) and the second chamber (502) are connected at their bottom ends; the second chamber (502) is connected to the drain pipe (403) through the drain pipe (503); the temporary storage tank (4) is connected to the drain pipe (403) through the connecting pipe (402) is connected to the first chamber (501), the floating plate (15) is slidably installed in the second chamber (502), the floating bag (16) is arranged at the bottom end of the floating plate (15), the ejector pin (17) is fixedly installed on the floating plate (15), the controller switch (19) is fixedly installed on the top plate of the second chamber (502), and the controller switch (19) is connected to the driving component. When the ejector pin (17) abuts against the controller switch (19), the controller switch (19) drives the rotating rod (6) to rotate through the driving component.

3. A cold dryer wastewater discharge device according to claim 2, characterized in that: The water level monitoring assembly also includes a spring (18), one end of the spring (18) is fixedly connected to the top plate of the second chamber (502), and the other end of the spring (18) is fixedly connected to the floating plate (15), and the pre-tightening force of the spring (18) causes the floating plate (15) to be away from the controller switch (19).

4. A cold dryer wastewater discharge device according to claim 2, characterized in that: The driving assembly comprises a fixing cap (7), a round rod (8), a rotating disk (9), a vertical rod (10) and a lifting block (12). The temporary storage tank (4) is provided with a lifting block (12). The rotating rod (6) is rotatably mounted on the lifting block (12). The fixing cap (7) is coaxially fixedly mounted on the top of the rotating rod (6). The two round rods (8) are both fixedly mounted on the outer circumferential surface of the fixing cap (7), and the two round rods (8) are symmetrically arranged. The rotating disk (9) is rotatably mounted on the top plate of the temporary storage tank (4), and the rotating disk (9) and the fixing cap (7) are coaxially arranged. The rotating disk (9) is driven to rotate by a first output source built into the temporary storage tank (4), and the first output source is connected to a controller switch (19). The two vertical rods (10) are both fixedly mounted on the bottom of the rotating disk (9), and the two vertical rods (10) are symmetrically arranged. There is a round rod (8) between the two vertical rods (10), and the length of the round rod (8) is not less than the radius of the rotating disk (9).

5. A cold dryer wastewater discharge device according to claim 4, characterized in that: The driving assembly further comprises a fixed frame (11), a threaded rod (14) and a ring (13); the ring (13) is sleeved on the outer circumferential surface of the rotating rod (6), and the two are fixedly connected; the ring (13) is rotatably mounted in the lifting block (12); the fixed frame (11) is fixedly mounted on the top plate of the temporary storage tank (4); the lifting block (12) is slidably mounted on the fixed frame (11); the threaded rod (14) is rotatably mounted in the fixed frame (11); the threaded rod (14) is threadably connected to the lifting block (12); the threaded rod (14) is driven to rotate by a second output source built into the fixed frame (11); and the second output source is connected to a controller switch (19).

6. A cold dryer wastewater discharge device according to claim 2, characterized in that: A detachable filter screen (20) is installed in the connecting pipe (402).

7. A cold dryer wastewater discharge device according to claim 2, characterized in that: The horizontal height of the connection point between the input pipe (401) and the temporary storage tank (4) is not higher than the horizontal height of the connection point between the connecting pipe (402) and the temporary storage tank (4).

8. A cold dryer wastewater discharge device according to claim 2, characterized in that: When the ejector pin (17) abuts against the controller switch (19), the level of the floating plate (15) is not higher than the level of the fixed frame (11).

Images