Moisture removal pipeline system

Abstract

The utility model provides a moisture removal pipeline system which comprises a moisture removal pipeline and a cleaning mechanism. The moisture removal pipeline comprises a conveying pipe, a moisture removal cover and a water drainage pipe, and the conveying pipe is provided with a cleaning opening; the cleaning mechanism comprises an air inlet pipeline connected with a steam source during use and a liquid inlet pipeline connected with a water source during use, the air inlet pipeline and the liquid inlet pipeline are arranged in parallel and are connected into a mixing pipeline together, the mixing pipeline is connected with a spraying pipeline, the end of the spraying pipeline is connected with a nozzle assembly, and the nozzle assembly is in butt joint with the cleaning opening; and the air inlet pipeline, the liquid inlet pipeline and the spraying pipeline are respectively provided with an air inlet valve, a liquid inlet valve and a spraying valve. High-temperature steam is used for heating clean water, the flushing effect is improved, the high-temperature steam can be directly led from heating waste gas of other process modules in the tobacco processing workshop, no extra heater needs to be arranged, and maximum utilization of resources is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco processing, and particularly relates to a moisture exhaust pipeline system. Background Art

[0002] In the tobacco leaf conditioning process, hot steam is required to process the tobacco leaves, and the waste gas is discharged through the moisture exhaust pipeline. In actual production, the waste gas often carries solid impurities such as dust and fragments from the tobacco leaves. When passing through the moisture exhaust pipeline, the condensed water vapor is likely to mix with the solid impurities and adhere and deposit on the inner wall of the pipeline, reducing the moisture exhaust effect, resulting in large fluctuations in temperature and moisture in the conditioning equipment, and even causing the generation of wet lumps and water-stained tobacco, seriously affecting the quality of the tobacco leaves. In order to maintain the moisture exhaust effect, it is usually necessary to regularly clean the moisture exhaust pipeline. The conventional pipeline cleaning method is to disassemble the pipeline section by section for cleaning. This method is time-consuming and laborious, and generally, tobacco processing equipment is large in volume and dense in structure, and the disassembly and assembly of the moisture exhaust pipeline installed above the processing equipment are rather troublesome.

[0003] The patent document with the application number CN201921158015.5 discloses a cleaning device for the moisture exhaust pipeline of a tobacco processing line drum type, which includes an air source station, a pressure pump, a first moisture exhaust pipeline and a second moisture exhaust pipeline. The air source station is connected to the first moisture exhaust pipeline and the second moisture exhaust pipeline through air pipes, and the pressure pump is connected to the first moisture exhaust pipeline and the second moisture exhaust pipeline through water pipes. When cleaning the pipeline, first flush the inner wall of the moisture exhaust pipeline through the water pipe, and then blow dry the residual water on the inner wall of the pipeline through the air pipe, without disassembling the pipeline, improving the cleaning efficiency and the automation degree of the equipment, but there are still problems of poor cleaning effect in specific applications. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a moisture exhaust pipeline system, which can remove the scale on the inner wall of the moisture exhaust pipeline through a cleaning mechanism, with good cleaning effect and more compact structural design.

[0005] A moisture exhaust pipeline system includes a moisture exhaust pipeline and a cleaning mechanism; the moisture exhaust pipeline includes a conveying pipe, a moisture exhaust hood connected to the first end of the conveying pipe, and a drain pipe connected to the second end of the conveying pipe body. The conveying pipe is provided with a cleaning port; the cleaning mechanism includes an intake pipeline connected to a steam source during use and a liquid inlet pipeline connected to a water source during use. The intake pipeline and the liquid inlet pipeline are arranged in parallel and are jointly connected to a mixing pipeline. The mixing pipeline is connected with a spray pipeline, and the end of the spray pipeline is connected with a nozzle assembly, and the nozzle assembly is docked with the cleaning port; the intake pipeline, the liquid inlet pipeline and the spray pipeline are respectively provided with an intake valve, a liquid inlet valve and a spray valve.

[0006] The utility model is provided with a parallel intake pipeline and a liquid intake pipeline. The intake pipeline is used to input high-temperature steam, and the liquid intake pipeline is used to input clean water. The steam and the clean water are simultaneously input into a mixing pipeline, where the high-temperature steam and the tap water are fused in the mixing pipeline to obtain a heat flow. The heat flow is ejected from a nozzle assembly into the interior of the moisture exhaust pipeline and impacts the pipe wall to achieve a cleaning effect. The sewage generated after cleaning is discharged and collected through a moisture exhaust hood and a drain pipe. The relative flow rates of the intake pipeline and the liquid intake pipeline can be adjusted through an intake valve and a liquid intake valve to obtain the best cleaning effect. The utility model utilizes high-temperature steam to heat the clean water to improve the flushing effect, and the high-temperature steam can be directly introduced from the heating waste gas of other process modules in a tobacco processing workshop without the need to additionally set up a heater, realizing the maximum utilization of resources. Since the intake valve and the liquid intake valve can adjust the relative flow rates of gas and liquid, the utility model can access heating waste gas with different flow rates and temperatures, and has strong versatility.

[0007] Further, the mixing pipeline is connected with a plurality of nozzle assemblies, and each nozzle assembly corresponds to a cleaning port.

[0008] Further, the conveying pipe is also provided with an observation window, and the observation window is arranged on the side of the cleaning port.

[0009] The observation window can be used to observe the deposition state of solid debris in the pipeline, judge the opening time of the cleaning mechanism, and can also be used to observe the working state of the nozzle assembly to facilitate the maintenance of the nozzle assembly.

[0010] Further, the cleaning port is provided with a movable door, the nozzle assembly is connected with a power device that can control the nozzle to move between both sides of the movable door, and the nozzle assembly is connected with the mixing pipeline through a movable pipe.

[0011] The settings of the movable door and the power device enable the nozzle assembly to be in different positions in the working state and the non-working state. In the non-working state, the movable door closes the cleaning port, and the nozzle assembly is located outside the movable door, thereby avoiding the deposition of solid debris on the nozzle during the moisture exhaust process, reducing the corrosion loss and blockage probability of the nozzle, and reducing the maintenance procedures; in the working state, the movable door opens, and the nozzle assembly penetrates through the cleaning port and extends into the interior of the moisture exhaust pipeline under the control of the power device to start the cleaning work.

[0012] Further, the movable door includes two movable blocks, and the movable blocks can abut against each other or separate to close or open the movable door.

[0013] Further, the movable door is also provided with a reset mechanism that can keep the two movable blocks abutting against each other.

[0014] Further, the reset mechanism is composed of a spring or a cylinder.

[0015] Furthermore, the movable block is provided with a guide portion, the guide portion has a guide slope, and the nozzle is provided with a push block that can abut against the guide slope and separate the two movable blocks.

[0016] When the power device controls the nozzle assembly to enter the dehumidification pipe, the push block abuts against the guide part and causes the movable block to move and separate in both directions, so that the cleaning port is gradually opened, and the nozzle assembly can smoothly enter the dehumidification pipe. When the power device controls the nozzle assembly to exit the dehumidification pipe, the push block separates from the guide block, and the two movable blocks abut against each other under the action of the reset mechanism, so that the cleaning port is restored to a closed state, ensuring the smooth progress of the subsequent dehumidification process. The above technical solution can realize the state switching of the dehumidification pipe system only through a set of power devices connected to the nozzle assembly, without the need to set up another set of power devices to control the opening and closing of the cleaning port, thereby controlling the equipment cost and achieving a faster state switching speed.

[0017] Furthermore, the nozzle assembly comprises a sealing portion of an annular structure which can be sealed with the outer end of the cleaning port.

[0018] When the nozzle assembly is extended into the moisture discharge pipe, the air outlet portion is sealed with the outer end of the cleaning port to prevent liquid from splashing through the gap between the nozzle assembly and the cleaning port.

[0019] Furthermore, a rubber gasket is provided on the side of the sealing portion facing the cleaning port.

[0020] In summary, the application of the utility model can achieve the following beneficial effects:

[0021] 1. The utility model utilizes high-temperature steam to heat clean water to improve the flushing effect, and the high-temperature steam can be directly drawn from the heating exhaust gas of other process modules in the tobacco processing workshop, without the need to set up an additional heater, thereby maximizing the utilization of resources.

[0022] 2. The air inlet valve and the liquid inlet valve in the utility model can adjust the relative flow of gas and liquid, so that heating exhaust gas with different flow rates and temperatures can be connected, and the utility model has strong versatility.

[0023] 3. In some embodiments, the cleaning port provided in the utility model is provided with a movable door, and the nozzle assembly is connected to a power device. The movable door closes the cleaning port in a non-working state, and the nozzle assembly is located outside the movable door, thereby preventing solid debris from being deposited on the nozzle during moisture discharge, reducing corrosion loss and clogging probability of the nozzle, and reducing maintenance procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the moisture discharge pipe system in the embodiment;

[0025] Figure 2 for Figure 1Schematic structural diagram of area A in

[0026] In the figure, 1 is the moisture exhaust pipe, 11 is the conveying pipe, 111 is the cleaning port, 112 is the observation window, 113 is the movable block, 1131 is the guiding part, 114 is the reset mechanism, 12 is the moisture exhaust hood, 13 is the drain pipe, 2 is the cleaning mechanism, 21 is the steam source, 22 is the water source, 23 is the air inlet pipe, 231 is the air inlet valve, 24 is the liquid inlet pipe, 241 is the liquid inlet valve, 25 is the mixing pipe, 26 is the spray pipe, 261 is the spray valve, 27 is the nozzle assembly, 271 is the nozzle, 272 is the pushing block, 273 is the sealing part, and 2731 is the rubber gasket. Detailed implementation manners

[0027] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0028] Referring to Figure 1 , this embodiment provides a moisture exhaust pipe system, which includes a moisture exhaust pipe 1 and a cleaning mechanism 2. The moisture exhaust pipe 1 includes a horizontally arranged conveying pipe 11 during use, a moisture exhaust hood connected to the first end of the conveying pipe for introducing the waste gas generated by the moisture return device, and a drain pipe 13 connected to the second end of the conveying pipe for facilitating the discharge of the wastewater generated after cleaning. A plurality of cleaning ports 111 are arranged in sequence on the conveying pipe, and an observation window 112 is provided on the side of each cleaning port. The cleaning mechanism 2 includes an air inlet pipe 23 connected to the steam source 21 and a liquid inlet pipe 24 connected to the water source 22. The air inlet pipe and the liquid inlet pipe are arranged in parallel and are jointly connected to the mixing pipe 25. The mixing pipe is connected with a plurality of spray pipes 26, and the end of each spray pipe is connected with a nozzle assembly 26. The nozzle assembly is in one-to-one correspondence with the cleaning port. An air inlet valve 231, a liquid inlet valve 241, and a spray valve 261 are respectively arranged on the air inlet pipe 23, the liquid inlet pipe 24, and the spray pipe 26. The air inlet valve, the liquid inlet valve, and the spray valve are controlled by a PLC, and the opening and closing states of the pipes and the flow rates in the pipes can be changed. When cleaning the pipes, first open the spray valve 261, and then synchronously open the air inlet valve 231 and the liquid inlet valve 241, so that the high-temperature water vapor and the cleaning water are fused in the mixing pipe to form a heat flow. The heat flow is ejected from the nozzle assembly to wash the inner wall of the moisture exhaust pipe, and the wastewater generated by the washing is discharged from both ends of the conveying pipe.

[0029] In some embodiments, a temperature sensor is provided on the mixing pipeline or the spraying pipeline. The data of the temperature sensor is transmitted to the PLC to regulate the states of the air inlet valve and the liquid inlet valve, control the flow rate ratio of the cleaning water and the high-temperature steam within a suitable range, improve the cleaning effect, and protect the service life of the equipment.

[0030] In some solutions, in order to prevent solid debris from depositing on the nozzle assembly extending into the moisture exhaust pipeline during tobacco processing, a movable door can be provided at the cleaning port, and the nozzle assembly is connected to a power device. During tobacco processing, the movable door is closed, and the nozzle assembly is located outside the movable door. During pipeline cleaning, the movable door is opened, and the nozzle assembly extends into the moisture exhaust pipeline for flushing. Figure 2 A further embodiment of the above solution is further illustrated. Specifically, the movable door is composed of two movable blocks 113 arranged symmetrically. When the two movable blocks are in contact with each other, the movable door is in the closed state. When the two movable blocks are separated, the movable door is in the open state. A high-temperature resistant rubber pad is provided at the inner ends of the movable blocks in contact with each other to improve the airtightness of the movable door in the closed state. The outer ends of the movable blocks are connected to a reset mechanism 114. The reset mechanism can apply pressure to make the two movable blocks contact each other or form a tendency to contact each other, which is used to improve the airtightness of the movable door in the closed state and facilitate the automatic closing of the movable door after cleaning. More specifically, the reset mechanism has a guide rod, and a reset spring is provided on the guide rod. A part of the outer end of the movable block is movably sleeved on the guide rod and is subjected to the pressure of the spring. The two movable blocks in the separated state will automatically contact each other under the action of the spring after losing restraint; in a further embodiment, a guiding portion 1131 is formed on a part of the movable block located inside the cleaning port. The guiding portion has a guiding inclined surface. The nozzle assembly includes a nozzle 271 and a pushing block 272 arranged on the side of the nozzle. When the nozzle assembly moves into the moisture exhaust pipeline under the action of the power device, the pushing block abuts against the guiding inclined surface of the guiding portion and pushes the movable block to both sides as the nozzle assembly moves, thereby automatically opening the movable door. When the nozzle assembly moves out of the moisture exhaust pipeline, the movable door automatically closes under the action of the reset mechanism without the need to additionally equip a controller to regulate the opening and closing of the movable door; in a further embodiment, the nozzle assembly further includes a sealing portion 273 in a ring structure. A rubber gasket 2731 is provided on the side of the sealing portion facing the cleaning port. When the nozzle assembly moves into the moisture exhaust pipeline, the sealing portion is in sealing contact with the outer edge of the cleaning port through the rubber gasket, thereby preventing liquid from splashing from the cleaning port during the cleaning process.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A moisture drainage pipe system, characterized in that: It comprises a dehumidification pipe and a cleaning mechanism; the dehumidification pipe comprises a delivery pipe, a dehumidification hood connected to the first end of the delivery pipe and a drain pipe connected to the second end of the delivery pipe body, and the delivery pipe is provided with a cleaning port; the cleaning mechanism comprises an air intake pipe connected to a steam source when in use and a liquid intake pipe connected to a water source when in use, the air intake pipe and the liquid intake pipe are arranged in parallel and connected to a mixing pipe together, the mixing pipe is connected to a spray pipe, the end of the spray pipe is connected to a nozzle assembly, and the nozzle assembly is connected to the cleaning port; the air intake pipe, the liquid intake pipe and the spray pipe are respectively provided with an air intake valve, a liquid intake valve and a spray valve.

2. A moisture removal pipe system according to claim 1, characterized in that: The mixing pipeline is connected with a plurality of nozzle assemblies, and each nozzle assembly corresponds to a cleaning port.

3. A moisture removal pipe system according to claim 1, characterized in that: The delivery pipe is also provided with an observation window, and the observation window is arranged on the side of the cleaning port.

4. A moisture removal pipe system according to claim 1, characterized in that: The cleaning port is provided with a movable door, the nozzle assembly is connected with a power device which can control the nozzle to move between two sides of the movable door, and the nozzle assembly is connected with the mixing pipeline through a movable pipe.

5. A moisture removal pipe system according to claim 4, characterized in that: The movable door comprises two movable blocks, and the movable blocks can abut against or separate from each other to close or open the movable door.

6. A moisture removal pipe system according to claim 5, characterized in that: The movable door is also provided with a reset mechanism which can keep the two movable blocks in contact with each other.

7. A moisture removal pipe system according to claim 6, characterized in that: The reset mechanism is composed of a spring or a cylinder.

8. A moisture removal pipe system according to claim 5, characterized in that: The movable block is provided with a guide portion having a guide slope, and the nozzle is provided with a push block which can abut against the guide slope and separate the two movable blocks.

9. A moisture removal pipe system according to claim 4, characterized in that: The nozzle assembly comprises a sealing portion of an annular structure which can be sealed with the outer end of the cleaning port.

10. A moisture removal pipe system according to claim 9, characterized in that: A rubber gasket is provided on one side of the sealing portion facing the cleaning port.

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