Automatic cleaning device for surface air cooler of combined process air conditioner

Abstract

The utility model discloses an automatic cleaning device for a combined process air conditioner surface air cooler, which belongs to the technical field of surface air cooler cleaning and comprises a gas-water dual-purpose pipeline connected with a lead screw nut mechanism, and the lead screw nut mechanism drives the gas-water dual-purpose pipeline to move up and down. The gas-water dual-purpose pipeline is communicated with a PVC pipe, the PVC pipe is provided with a three-way valve which is communicated with a water pipe and a gas pipe respectively, the water pipe and the gas pipe are provided with electric valves, and the electric valves are connected with a controller.

Description

Technical Field

[0001] The utility model belongs to the technical field of surface cooler cleaning, and in particular relates to an automatic cleaning device for a combined process air conditioner surface cooler. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] In the tobacco production industry, industrial combined process air conditioning systems are used for air treatment in production areas. Common combined process air conditioning systems are generally divided into filter section, surface cooling section, heating section, humidification section, and air supply section. Because there may be impurities in the air in the production area, such as the tobacco silk production area, although most of the impurities can be captured by the filter barrel or filter net of the combined process air conditioning filter section, there are still a small number of air impurities that pass through the filter section to reach the surface cooling section surface cooler, which is a chilled water main with a dense fin structure. As the running time of the combined process air conditioner accumulates, the accumulated impurities on the surface of the surface cooler fins will further increase, which will not only greatly reduce the operating efficiency of the surface cooler, but also block the surface cooler in severe cases, causing the air supply section fan to evacuate the inside of the combined process air conditioner body, forming negative pressure, and then causing deformation and damage to the body.

[0004] For a long time, the cleaning of the cooler has been done manually, but due to the limitation of the combined process air conditioner operation cycle, it is impossible to clean it in time. At the same time, the cooler fins are extremely thin, and manual misoperation or excessive water pressure will cause the cooler fins to deform, reduce the operating efficiency of the cooler, and increase the degree of blockage of the cooler. In addition, even if manual cleaning is done without misoperation and the water pressure is reasonable, it is difficult to achieve 100% coverage of the cooler surface due to objective conditions such as size. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an automatic cleaning device for a combined process air conditioner cooler, which can automatically clean the cooler, thereby improving efficiency and causing less damage to the cooler fins.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] In the first aspect, the utility model provides an automatic cleaning device for a combined process air conditioner surface cooler, comprising an air-water dual-purpose pipe, which is connected to a screw-nut mechanism and driven up and down by the screw-nut mechanism; the air-water dual-purpose pipe is connected to a PVC pipe, which is provided with a three-way valve connected to a water pipe and an air pipe respectively, and both the water pipe and the air pipe are provided with electric valves, which are connected to a controller.

[0008] As a further technical solution, the air-water dual-purpose pipeline is horizontally arranged, and a plurality of air-water dual-purpose nozzles are arranged along the axial direction of the air-water dual-purpose pipeline.

[0009] As a further technical solution, the screw and nut mechanism includes a vertically arranged screw, the screw is connected to the nut, and the nut can move up and down along the screw, and the nut is fixedly connected to the air-water dual-purpose pipeline.

[0010] As a further technical solution, the top of the lead screw is fixedly connected to the stepper motor, and the stepper motor is connected to the controller.

[0011] As a further technical solution, the controller is also connected to a differential pressure gauge, which is used to collect the air pressure difference between the air inlet side and the leeward side of the condenser.

[0012] As a further technical solution, a screw fixing end is provided at the bottom of the screw.

[0013] As a further technical solution, sliders are provided at both ends of the gas-water dual-purpose pipeline, guide rails are provided on both sides of the gas-water dual-purpose pipeline, the guide rails are vertically arranged, and the sliders are slidably connected to the guide rails.

[0014] As a further technical solution, limiters are provided at both upper and lower ends of the guide rail, and the limiters are connected to the controller.

[0015] As a further technical solution, two PVC pipes are provided, the two PVC pipes are connected to both ends of the gas-water dual-purpose pipeline, and the PVC pipes are extended vertically upward.

[0016] As a further technical solution, a protective drag chain is arranged outside the vertical section of the PVC pipe.

[0017] The beneficial effects of the above utility model are as follows:

[0018] The automatic cleaning device for the surface cooler of the utility model drives the air-water dual-purpose pipe to move up and down through a screw nut mechanism. During the movement, the PVC pipe provides water or air to the air-water dual-purpose pipe. The surface cooler can be automatically cleaned and blown to dry it after cleaning. The cleaning efficiency of the combined process air-conditioning surface cooler can be improved. Compared with traditional manual cleaning, the damage to the fins of the surface cooler is less.

[0019] The automatic cleaning device for the surface cooler of the utility model can cover the length of the surface cooler by setting the length of the air-water dual-purpose pipe, and can cover the length of the surface cooler by arranging the air-water dual-purpose nozzle, so that the water flow coverage of the surface cooler can reach 100%, the cleaning coverage is higher, and the cleaning efficiency is higher. In addition, since the device only needs to arrange the air-water dual-purpose pipe and the matching structure that move up and down, its overall projection area is smaller, and it will not occupy the normal working space and working environment of the surface cooler, and can realize the non-stop cleaning of the combined air-conditioning surface cooler.

[0020] The automatic cleaning device for the surface cooler of the utility model can realize monitoring and cleaning closed-loop management through the settings of the controller, differential pressure gauge, limit switch, etc., and collect the differential pressure information of the surface cooler. The controller automatically controls the start and stop of the stepping motor and the electric valve, so that the screw nut mechanism drives the air-water dual-purpose pipe to move up and down for cleaning. The action of the corresponding mechanism is automatically controlled in the process, truly realizing full automation, thereby greatly reducing the maintenance workload and working time of the equipment.

[0021] In the automatic cleaning device for a surface cooler of the utility model, a protective drag chain is arranged outside the vertical section of the PVC pipe, so as to protect the PVC pipe and prevent the PVC pipe from being damaged when the air-water dual-purpose pipe makes up-and-down reciprocating motion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] Figure 1 It is a structural schematic diagram of a combined process air conditioner surface cooler automatic cleaning device according to one or more embodiments of the utility model;

[0024] Figure 2 It is a schematic diagram of the upward movement of the air-water dual-purpose pipeline of the combined process air conditioner surface cooler automatic cleaning device according to one or more embodiments of the utility model;

[0025] Figure 3 It is a schematic diagram of the downward movement of the air-water dual-purpose pipeline of the combined process air conditioner surface cooler automatic cleaning device according to one or more embodiments of the utility model;

[0026] In the figure: 1. Air-water dual-purpose nozzle, 2. Air-water dual-purpose pipeline, 3. Screw, 4. Control circuit, 5. Limiter, 6. Control circuit, 7. Bracket, 8. Stepper motor, 9. Surface cooler, 10. Upper end of surface cooler, 11. Three-way valve, 12. Electric valve, 13. PVC pipe, 14. Screw nut mechanism, 15. Screw fixed end, 16. Differential pressure gauge, 17. Nut, 18. Water pipe, 19. Air pipe, 20. Slider, 21. Guide rail, 22. Protective drag chain.

[0027] In order to show the positions of various parts, the distances or sizes between them are exaggerated and the schematic diagram is for reference only. DETAILED DESCRIPTION

[0028] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or their combinations;

[0030] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0031] Terminology explanation section: If the terms "install", "connect", "connect", "fixed" and so on appear in the present invention, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0032] In a typical implementation of the present invention, Figure 1 As shown, a combined process air conditioning surface cooler automatic cleaning device is proposed, which includes an air-water dual-purpose pipeline 2, the air-water dual-purpose pipeline 2 is connected to a screw nut mechanism 14, the air-water dual-purpose pipeline 2 is connected to a PVC pipe 13, the PVC pipe provides cleaning water for the air-water dual-purpose pipeline, and the screw nut mechanism can drive the air-water dual-purpose pipeline to move up and down.

[0033] The air-water dual-purpose pipeline 2 is arranged horizontally, and a plurality of air-water dual-purpose nozzles 1 are arranged along the axial direction of the air-water dual-purpose pipeline 2, and the air-water dual-purpose nozzles spray water to clean the surface cooler 9. The air-water dual-purpose nozzles 1 can be fan-shaped spray heads. The length of the air-water dual-purpose pipeline 2 can cover the length of the surface cooler, ensuring that the surface of the surface cooler is fully covered and cleaned.

[0034] The screw and nut mechanism 14 includes a vertically arranged screw 3, which is connected to a nut 17 and can move up and down along the screw. The nut 17 is fixedly connected to the air-water dual-purpose pipeline 2, thereby driving the air-water dual-purpose pipeline 2 to move up and down.

[0035] The bottom of the lead screw 3 is provided with a lead screw fixed end 15 to prevent the nut from falling out; the top of the lead screw 3 is fixedly connected to the stepper motor 8, which provides power to the lead screw. The stepper motor 8 is connected to the controller through the control circuit 6, and the controller controls its operation.

[0036] Furthermore, the stepper motor 8 is fixed to the bracket 7, and the bracket provides supporting force for it.

[0037] In an optional embodiment, two PVC pipes 13 are provided, the two PVC pipes 13 are connected to both ends of the gas-water dual-purpose pipe 2, the PVC pipes 13 are extended vertically upward, and some sections of the PVC pipes are fixed to the bracket and extend outward.

[0038] In a preferred embodiment, a protective drag chain 22 is disposed outside the vertical section of the PVC pipe 13 to protect the PVC pipe and prevent damage to the PVC pipe when the gas-water dual-purpose pipe makes up-and-down reciprocating motions.

[0039] The PVC pipe 13 is provided with a three-way valve 11 which is connected to the water pipe 18 and the air pipe 19 respectively. The water pipe 18 and the air pipe 19 are provided with an electric valve 12, which controls the on and off of the water pipe and the air pipe. The water pipe is connected to a water source, and the air pipe is connected to an air source. The air source can be compressed air. The water pipe can provide water to the air-water dual-purpose pipeline through the PVC pipe to clean the surface cooler, and then the air pipe can provide air to the air-water dual-purpose pipeline through the PVC pipe to dry the surface cooler. The electric valves of the water pipe and the air pipe are connected to the controller.

[0040] In a further embodiment, sliders 20 are provided at both ends of the gas-water dual-purpose pipeline 2, guide rails 21 are provided on both sides of the gas-water dual-purpose pipeline 2, the guide rails 21 are vertically arranged, the sliders 20 are slidably connected to the guide rails 21, and the sliders can move up and down along the guide rails.

[0041] Preferably, limiters 5 are provided at both upper and lower ends of the guide rail 21, and the limiters 5 are connected to the controller via a control circuit 4. When the slider contacts the limiter, the limiter sends a signal to the controller, and the controller controls the operation of the stepper motor.

[0042] The controller is also connected to a differential pressure gauge 16, which is used to collect the air pressure difference between the air inlet side and the leeward side of the cooler. The controller controls the corresponding operation of the stepper motor according to the pressure difference data.

[0043] The cleaning device has a simple structure, is easy to manufacture and install. At the same time, the volume and structural dimensions can be flexibly adjusted according to the actual space requirements of the equipment, providing a precise, safe, non-destructive, automatic and efficient cleaning device for many types of combined process air conditioners on the market.

[0044] The use process of the cleaning device is as follows:

[0045] The differential pressure gauge periodically transmits the collected air pressure difference between the air inlet side and the leeward side of the cooler to the controller. When the air pressure difference between the air inlet side and the leeward side of the cooler reaches a specific value, the controller sends a forward signal to the stepper motor, and the nut of the screw nut mechanism moves upward relative to the screw, and the nut is fixedly connected to the air-water dual-purpose pipe; at the same time, the electric valve of the water pipe connected to the PVC pipe is opened, and the water flows through the air-water dual-purpose pipe and the air-water dual-purpose nozzle to spray onto the surface of the cooler;

[0046] When the slider reaches a specific position of the guide rail, triggering the upper end limiter of the guide rail to move, the air-water dual-purpose pipeline runs to the upper end 10 of the surface cooler, and the action signal is transmitted to the controller, which sends a reverse signal to the stepper motor, and the nut of the screw nut mechanism moves downward relative to the screw, driving the air-water dual-purpose pipeline to move downward. When the slider reaches a specific position of the guide rail, triggering the lower end limiter of the guide rail to move, the action signal is transmitted to the controller, which sends a forward signal to the stepper motor, and reciprocates;

[0047] When the screw nut mechanism moves to the limiter trigger position three times, the electric valve of the water pipe is closed, the electric valve of the air pipe is opened, and the screw nut mechanism drives the air-water dual-purpose pipe to move as described above, and sprays air to dry the surface cooler;

[0048] When the air pressure difference between the air inlet side and the leeward side of the surface cooler collected by the controller is less than a specific value, the electric valves of the water pipe and the air pipe are immediately closed, and the slider moves to the trigger position of the limiter at the lower end of the guide rail.

[0049] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A combined process air conditioner surface cooler automatic cleaning device, characterized in that: It comprises a dual-purpose gas-water pipeline, which is connected with a screw nut mechanism and driven by the screw nut mechanism to move up and down; the dual-purpose gas-water pipeline is connected with a PVC pipe, and a three-way valve is arranged on the PVC pipe to be connected with a water pipe and a gas pipe respectively, and both the water pipe and the gas pipe are provided with electric valves, which are connected with a controller.

2. The automatic cleaning device for the combined process air conditioner surface cooler according to claim 1, characterized in that: The air-water dual-purpose pipeline is arranged horizontally, and a plurality of air-water dual-purpose nozzles are arranged along the axial direction of the air-water dual-purpose pipeline.

3. The automatic cleaning device for the combined process air conditioner surface cooler according to claim 1 is characterized in that: The screw and nut mechanism includes a vertically arranged screw, the screw is connected to a nut, and the nut can move up and down along the screw, and the nut is fixedly connected to a gas-water dual-purpose pipeline.

4. The automatic cleaning device for the combined process air conditioner surface cooler according to claim 3 is characterized in that: The top of the lead screw is fixedly connected to the stepper motor, and the stepper motor is connected to the controller.

5. The automatic cleaning device for the combined process air conditioner surface cooler according to claim 4 is characterized in that: The controller is also connected to a differential pressure gauge, which is used to collect the difference in air pressure between the air inlet side and the leeward side of the surface cooler.

6. The automatic cleaning device for the combined process air conditioner surface cooler according to claim 3, characterized in that: A screw fixing end is arranged at the bottom of the screw.

7. The automatic cleaning device for the combined process air conditioner surface cooler according to claim 1, characterized in that: Slide blocks are arranged at both ends of the gas-water dual-purpose pipeline, guide rails are arranged on both sides of the gas-water dual-purpose pipeline, the guide rails are arranged vertically, and the slide blocks are slidably connected with the guide rails.

8. The automatic cleaning device for the combined process air conditioner surface cooler according to claim 7, characterized in that: Limiters are arranged at both upper and lower ends of the guide rail, and the limiters are connected to the controller.

9. The automatic cleaning device for the combined process air conditioner surface cooler according to claim 1, characterized in that: Two PVC pipes are provided, the two PVC pipes are connected to two ends of the gas-water dual-purpose pipeline, and the PVC pipes are extended vertically upward.

10. The automatic cleaning device for the combined process air conditioner surface cooler according to claim 9, characterized in that: A protective drag chain is arranged outside the vertical section of the PVC pipe.

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