Automatic cleaning device and method for surface air cooler of central air conditioning unit of cigarette factory

Abstract

The invention discloses an automatic cleaning device and method for a surface air cooler of a central air conditioning unit of a cigarette factory, and the automatic cleaning device comprises a supporting frame, a left lifting part is arranged at the left part of the supporting frame, a right lifting part is arranged at the right part of the supporting frame, a transverse moving part is arranged between the left lifting part and the right lifting part, and a nozzle support is arranged on the transverse moving part; the nozzle support is provided with a plurality of nozzles used for spraying water to wash a surface air cooler of the central air conditioning unit of the cigarette factory. The left lifting component and the right lifting component synchronously ascend and descend and are used for driving the transverse moving component to ascend and descend and driving the nozzle support to ascend and descend, the transverse moving component is further used for driving the nozzle support to transversely move, and the multiple nozzles ascend and descend or transversely move along with the nozzle support and are used for spraying water to wash the surface air cooler. The surface air cooler of the central air conditioning unit of the cigarette factory can be automatically cleaned, the cleaning quality is improved, and therefore stable operation of the central air conditioning unit of the cigarette factory is guaranteed, operation energy consumption is reduced, and the service life of the surface air cooler can be prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of cleaning surface coolers of central air-conditioning units in tobacco factories, and in particular relates to an automatic cleaning device and method for surface coolers of central air-conditioning units in tobacco factories. Background Art

[0002] In a cigarette factory, temperature and humidity changes are important factors affecting the quality of cigarette rolling, and the temperature and humidity environment of each production work area of ​​the cigarette factory needs to be directly controlled by a central air-conditioning unit. The surface cooler of the central air-conditioning unit is used to control and adjust the temperature and humidity, and is the main component of the central air-conditioning unit. The central air-conditioning unit uses the surface cooler to perform heat exchange between air and chilled water or hot water to achieve the purpose of cooling or heating the air, thereby achieving stable control of the temperature and humidity on site.

[0003] The surface cooler adopts a coil fin structure. When the central air-conditioning unit is working, the fine tobacco dust generated during the production process of the tobacco factory's rolling and packaging and silk-making workshop is brought into the central air-conditioning unit through air circulation. The air containing tobacco dust is filtered and dust-removed, but the attachments of tobacco leaves in the tobacco dust, such as fluff and short fibers of the filter tip, are not easy to be completely filtered out. The remaining extremely fine particles pass through the surface cooler with the return air and adhere to the fins and copper fins of the surface cooler, seriously affecting the heat exchange efficiency of the surface cooler and increasing the wind resistance of the windward side of the surface cooler. At the same time, since tobacco dust contains tobacco oil and nicotine, the deposition over a long period of time will also cause corrosion to the fins and copper fins of the surface cooler, shortening the service life of the surface cooler. When the dust accumulation on the surface of the surface cooler reaches more than 3mm, the heat exchange rate of the surface cooler will drop by 15-20%, the energy consumption of the host will increase by more than 8-10%, and it will have a certain impact on the temperature and humidity control of the cooling or heating area. The performance of the decline in heat exchange rate is also quite different due to different dust densities.

[0004] In order to solve the dust accumulation problem of the surface cooler, in actual operation, the surface cooler is manually flushed during the weekly factory break to clean the tobacco dust on the surface of the fins and copper fin tubes of the surface cooler. However, due to the small internal space of the central air-conditioning unit and the small space of the functional maintenance section behind the surface cooler, the surface is slippery, and the manual flushing requires standing on the ground. The height of the surface cooler is 3.3 meters, and the fin spacing is 12 mm. In this way, the use of high-pressure water guns for flushing cannot guarantee the precise control of the flushing pressure and flushing angle on each working surface of the surface cooler, which can easily cause the fins to be distorted or damaged and affect the heat exchange. In addition, for the surface coolers with a height of more than 2 meters, the surface coolers should be flushed manually. For the upper part, due to the large flushing angle, the cleaning quality of the upper part of the surface cooler is inferior to that of the lower part. Dead corners will be left on the upper part of the surface cooler, and the water consumption for manual flushing is uneven, wasting water resources. In short, the moist tobacco dust attached to the surface of the surface cooler has strong viscosity, and the fins of the surface cooler are densely spaced. It is difficult for ordinary manual water spray flushing to penetrate the fins of the surface cooler and thoroughly clean the tobacco dust, which leads to the service life of the surface cooler being less than the design standard. In the working environment of areas with serious dust accumulation in the tobacco factory, such as the silk storage room, the replacement cycle of the surface cooler is an average of 1 to 1.5 years. Summary of the invention

[0005] In view of the above-mentioned defects of the prior art, the present invention provides an automatic cleaning device and method for the surface cooler of the central air-conditioning unit of the tobacco factory, which can automatically clean the surface cooler of the central air-conditioning unit of the tobacco factory and improve the cleaning quality, thereby ensuring the stable operation of the central air-conditioning unit of the tobacco factory, reducing operating energy consumption, and extending the service life of the surface cooler.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] An automatic cleaning device for a surface cooler of a central air-conditioning unit in a tobacco factory comprises a support frame, a left lifting component is provided at the left portion of the support frame, a right lifting component is provided at the right portion and is lifted synchronously with the left lifting component, a transverse moving component is provided between the left lifting component and the right lifting component, a nozzle bracket is provided on the transverse moving component, and a plurality of nozzles for spraying water and flushing the surface cooler of the central air-conditioning unit in the tobacco factory are provided on the nozzle bracket; the left lifting component and the right lifting component are lifted synchronously to drive the transverse moving component to lift and lower, and drive the nozzle bracket to lift and lower, and the transverse moving component is also used to drive the nozzle bracket to move laterally, and the plurality of nozzles are lifted and lowered or moved laterally along with the nozzle bracket to spray water and flush the surface cooler.

[0008] Furthermore, the left lifting component includes a vertical left lifting screw, and vertical left limiting rods are respectively provided on the front and rear sides of the left lifting screw. A left lifting slider is screwed on the left lifting screw, and the left limiting rods on the front and rear sides both penetrate the left lifting slider and are slidably connected to the left lifting slider; the right lifting component and the left lifting component are arranged symmetrically on the left and right, and the right lifting component includes a right lifting screw, a right limiting rod and a right lifting slider; the left lifting screw and the right lifting screw are driven by a power assembly to rotate synchronously and in the same direction; the lateral moving component is arranged between the left lifting slider and the right lifting slider.

[0009] Furthermore, the power assembly includes a double-output shaft three-phase asynchronous motor, the left output shaft of the double-output shaft three-phase asynchronous motor is connected to the fast shaft of the left reducer through a left cross-axis universal coupling, the slow shaft of the left reducer is connected to the top of the left lifting screw, and the right output shaft of the double-output shaft three-phase asynchronous motor is connected to the fast shaft of the right reducer through a right cross-axis universal coupling, and the slow shaft of the right reducer is connected to the top of the right lifting screw.

[0010] Furthermore, the transverse moving component includes a transverse moving screw horizontally arranged in the left and right directions, and the upper and lower sides of the transverse moving screw are provided with transverse limiting light rods parallel to the transverse moving screw, the left end of the transverse moving screw is rotatably connected to the left lifting slider, and the right end is rotatably connected to the right lifting slider, and a transverse moving slider is screwed on the transverse moving screw, and the transverse limiting light rods on the upper and lower sides both penetrate the transverse moving slider and are slidably connected to the transverse moving slider, the nozzle bracket is fixed on the transverse moving slider, and the transverse moving screw is also provided with a position near the left lifting slider. A ratchet is sleeved and fixed, an upper pawl is provided at the upper left part of the support frame and a lower pawl is provided at the lower left part, the transverse screw rises a certain distance and makes the ratchet touch the upper pawl, the upper pawl is used to push the ratchet to rotate a certain angle so that the transverse screw rotates a certain angle and the transverse slider moves laterally a certain distance, the transverse screw descends a certain distance and makes the ratchet touch the lower pawl, the lower pawl is used to push the ratchet to rotate a certain angle so that the transverse screw rotates a certain angle and the transverse slider moves laterally a certain distance.

[0011] Furthermore, a water inlet adapter pipe and an air inlet adapter pipe are fixed between the left lifting slider and the right lifting slider. The water inlet end of the water inlet adapter pipe is connected to the high-pressure water pump placed in the water tank through a water inlet main pipe, and the water outlet end of the water inlet adapter pipe is connected to the water inlet end of each nozzle through a water inlet branch pipe. The air inlet end of the air inlet adapter pipe is connected to the air pump through the air inlet main pipe, and the exhaust end of the air inlet adapter pipe is connected to the air inlet end of each nozzle through an air inlet branch pipe.

[0012] Furthermore, each of the water inlet branch pipes is provided with a first flow meter, a first flow regulating valve, a first pressure gauge and a first pressure regulating valve, and each of the air inlet branch pipes is provided with a second flow meter, a second flow regulating valve, a second pressure gauge and a second pressure regulating valve. Each of the first flow meters, each first pressure gauge, each second flow meter and each second pressure gauge is connected to the signal input end of the controller, and the signal output end of the controller is connected to each first flow regulating valve, each first pressure regulating valve, each second flow regulating valve and each second pressure regulating valve.

[0013] Furthermore, the water inlet adapter pipe and the air inlet adapter pipe are both metal pipes, the water inlet main pipe, each water inlet branch pipe, the air inlet main pipe and each air inlet branch pipe are all hoses, and each water inlet branch pipe and each air inlet branch pipe are tied to the nozzle bracket.

[0014] Furthermore, each of the first flow meters, each of the first flow regulating valves, each of the first pressure gauges, each of the first pressure regulating valves, each of the second flow meters, each of the second flow regulating valves, each of the second pressure gauges and each of the second pressure regulating valves are all fixed on the nozzle bracket.

[0015] Furthermore, the lower end of the support frame is fixed on the support base; the air pump is an air compression pump; and the plurality of nozzles are evenly distributed on the nozzle bracket.

[0016] An automatic cleaning method for a surface cooler of a central air-conditioning unit in a tobacco factory, using the automatic cleaning device for a surface cooler of a central air-conditioning unit in a tobacco factory for cleaning, comprises the following steps:

[0017] S1, control the left lifting component and the right lifting component to rise and fall synchronously, so as to drive the transverse moving component to rise and fall, the nozzle bracket to rise and fall together with the transverse moving component, and the plurality of nozzles to rise and fall together with the nozzle bracket and spray water to the surface cooler of the central air conditioning unit of the tobacco factory during the lifting process;

[0018] S2. Control the lateral moving component to move lateraly to drive the nozzle bracket to move lateraly. The plurality of nozzles move lateraly together with the nozzle bracket and spray water to the surface cooler during the lateral movement.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The automatic cleaning device for the surface cooler of the central air-conditioning unit of a tobacco factory of the present invention controls the synchronous lifting of the left lifting component and the right lifting component to drive the lifting of the lateral moving component, the nozzle bracket is lifted together with the lateral moving component, and multiple nozzles are lifted together with the nozzle bracket and spray water to the surface cooler of the central air-conditioning unit of the tobacco factory during the lifting process, and controls the lateral movement of the lateral moving component to drive the lateral movement of the nozzle bracket, and multiple nozzles are moved together with the nozzle bracket and spray water to the surface cooler during the lateral movement. In this way, multiple nozzles can be lifted and lowered and moved laterally, and then the surface cooler of the central air-conditioning unit of the tobacco factory can be automatically cleaned in a full-coverage manner to improve the cleaning quality, thereby ensuring the stable operation of the central air-conditioning unit of the tobacco factory, reducing the operating energy consumption, and extending the service life of the surface cooler.

[0021] In the present invention, the transverse moving component includes a transverse moving screw horizontally arranged along the left and right directions, and transverse limiting light rods parallel to the transverse moving screw are provided on the upper and lower sides of the transverse moving screw. The left end of the transverse moving screw is rotatably connected to the left lifting slider and the right end is rotatably connected to the right lifting slider. The transverse moving screw is screwed with a transverse moving slider, and the upper and lower transverse limiting light rods both penetrate the transverse moving slider and are slidably connected to the transverse moving slider. The nozzle bracket is fixed on the transverse moving slider, and a ratchet is also sleeved and fixed on the transverse moving screw at a position close to the left lifting slider. An upper ratchet is provided at the upper left portion of the support frame and a lower ratchet is provided at the lower left portion. When the left and right lifting slide blocks drive the transverse screw to rise a certain distance and the ratchet touches the upper pawl, the upper pawl pushes the ratchet to rotate a certain angle, so that the transverse screw rotates a certain angle relative to the left and right lifting slide blocks, and the transverse slide blocks move laterally a certain distance, so that the nozzle holder can move laterally a certain distance along with the transverse slide block, and when the left and right lifting slide blocks drive the transverse screw to fall a certain distance and the ratchet touches the lower pawl, the lower pawl pushes the ratchet to rotate a certain angle, so that the transverse screw rotates a certain angle relative to the left and right lifting slide blocks, and the transverse slide blocks move laterally a certain distance, so that the nozzle holder can also move laterally a certain distance along with the transverse slide block. Therefore, through the setting of the upper pawl, the lower pawl and the ratchet, there is no need to set up an additional power source to drive the transverse screw to rotate, so that the transverse screw can be rotated a certain angle after rising and falling into place, thereby realizing the lateral movement of the transverse slide block, thereby realizing the lateral movement of the nozzle holder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the automatic cleaning device for the surface cooler of the central air-conditioning unit of a tobacco factory in the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure after the nozzle bracket and multiple nozzles are hidden;

[0024] Figure 3for Figure 1 A schematic diagram of the structure of a nozzle support and multiple nozzles;

[0025] Figure 4 for Figure 1 A schematic diagram of the structure viewed from above after the power components are hidden;

[0026] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of one of the nozzles;

[0027] Figure 6 It is the control principle diagram of the present invention.

[0028] Explanation of the reference numerals in the figure: 1. support frame, 2. nozzle bracket, 3. nozzle, 401. left lifting screw, 402. left limiting rod, 403. left lifting slider, 501. right lifting screw, 502. right limiting rod, 503. right lifting slider, 601. double-output shaft three-phase asynchronous motor, 602. left cross-axis universal coupling, 603. left reducer, 604. right cross-axis universal coupling, 605. right reducer, 701. transverse screw, 702. transverse limiting rod, 703. transverse slider, 704. ratchet, 705. upper ratchet, 706. lower ratchet, 8. water inlet transfer pipe, 9. air inlet transfer pipe, 10. support base. DETAILED DESCRIPTION

[0029] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, but not to limit the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0033] like Figure 1-5 As shown, an automatic cleaning device for a surface cooler of a central air-conditioning unit in a tobacco factory comprises a support frame 1, a left lifting component is provided at the left portion of the support frame 1, a right lifting component which is lifted and lowered synchronously with the left lifting component is provided at the right portion, a transverse moving component is provided between the left lifting component and the right lifting component, a nozzle bracket 2 is provided on the transverse moving component, and a plurality of nozzles 3 for spraying water and flushing the surface cooler of the central air-conditioning unit in the tobacco factory are provided on the nozzle bracket 2; the left lifting component and the right lifting component are lifted and lowered synchronously to drive the transverse moving component to lift and lower, and drive the nozzle bracket 2 to lift and lower, and the transverse moving component is also used to drive the nozzle bracket 2 to move laterally, and the plurality of nozzles 3 are lifted and lowered or moved laterally along with the nozzle bracket 2 to spray water and flush the surface cooler.

[0034] In this way, by controlling the left lifting component and the right lifting component to rise and fall synchronously, the lateral moving component is driven to rise and fall, the nozzle bracket 2 is lifted and lowered together with the lateral moving component, and the multiple nozzles 3 are lifted and lowered together with the nozzle bracket 2 and spray water to the surface cooler of the central air-conditioning unit of the tobacco factory during the lifting process. By controlling the lateral movement of the lateral moving component to move horizontally, the nozzle bracket 2 is driven to move horizontally, and the multiple nozzles 3 are lifted and lowered together with the nozzle bracket 2 and spray water to the surface cooler during the lateral movement. Therefore, the multiple nozzles 3 can be lifted and lowered and moved horizontally, and then the surface cooler of the central air-conditioning unit of the tobacco factory can be automatically cleaned in a full-coverage manner to improve the cleaning quality and ensure the normal heat exchange efficiency of the surface cooler, thereby ensuring the stable operation of the central air-conditioning unit of the tobacco factory, reducing the operating energy consumption, and extending the service life of the surface cooler and reducing the maintenance cost.

[0035] In one embodiment,

[0036] like Figure 1 , 2As shown in Figure 4, the left lifting component includes a vertical left lifting screw 401, and vertical left limit rods 402 are respectively provided on the front and rear sides of the left lifting screw 401. A left lifting slider 403 is screwed on the left lifting screw 401, and the left limit rods 402 on the front and rear sides both penetrate the left lifting slider 403 and are slidably connected to the left lifting slider 403; the right lifting component is symmetrically arranged with the left lifting component, and the right lifting component includes a right lifting screw 501, a right limit rod 502 and a right lifting slider 503; the left lifting screw 401 and the right lifting screw 501 are driven by a power component to rotate synchronously and in the same direction; the lateral moving component is arranged between the left lifting slider 403 and the right lifting slider 503; as shown in Figure 4, the left lifting screw 401 and the right lifting screw 501 are driven by a power component to rotate synchronously and in the same direction; the horizontal moving component is arranged between the left lifting slider 403 and the right lifting slider 503; Figure 1 As shown, the power assembly includes a double-output shaft three-phase asynchronous motor 601, the left output shaft of the double-output shaft three-phase asynchronous motor 601 is connected to the fast shaft of the left reducer 603 through the left cross shaft universal coupling 602, the slow shaft of the left reducer 603 is connected to the top of the left lifting screw 401, the right output shaft of the double-output shaft three-phase asynchronous motor 601 is connected to the fast shaft of the right reducer 605 through the right cross shaft universal coupling 604, and the slow shaft of the right reducer 605 is connected to the top of the right lifting screw 501. The double-output shaft three-phase asynchronous motor 601, the left reducer 603 and the right reducer 605 are all fixed at the top of the support frame 1, the left lifting screw 401 and the right lifting screw 501 are both rotatably connected to the support frame 1, the left limit light rod 402 on both sides of the front and rear are both fixedly connected to the support frame 1, and the right limit light rod 502 on both sides of the front and rear are both fixedly connected to the support frame 1.

[0037] After the double-output shaft three-phase asynchronous motor 601 is started in this way, the left output shaft and the right output shaft of the double-output shaft three-phase asynchronous motor 601 rotate synchronously and in the same direction, and the left output shaft of the double-output shaft three-phase asynchronous motor 601 drives the left lifting screw 401 to rotate relative to the support frame 1 through the left cross-axis universal coupling 602 and the left reducer 603, and the right output shaft of the double-output shaft three-phase asynchronous motor 601 drives the right lifting screw 501 to rotate relative to the support frame 1 through the right cross-axis universal coupling 604 and the right reducer 605, and the left lifting screw 401 and the right lifting screw 501 rotate synchronously and in the same direction, so that the left lifting slider 403 and the right lifting slider 503 rise or fall synchronously, thereby causing the transverse moving component to rise or fall.

[0038] like Figure 1 , 2As shown in Figure 4, the transverse moving component includes a transverse moving screw 701 horizontally arranged along the left and right directions, and the upper and lower sides of the transverse moving screw 701 are provided with transverse limiting light rods 702 parallel to the transverse moving screw 701. The left end of the transverse moving screw 701 is rotatably connected to the left lifting slider 403 and the right end is rotatably connected to the right lifting slider 503. The transverse moving slider 703 is screwed on the transverse moving screw 701, and the upper and lower transverse limiting light rods 702 both penetrate the transverse moving slider 703 and are slidably connected to the transverse moving slider 703. The nozzle bracket 2 is fixed on the transverse moving slider 703, and a fixed rod 702 is also sleeved on the transverse moving slider 701 at a position close to the left lifting slider 403. A ratchet 704 is fixed, an upper pawl 705 is provided at the upper left part of the support frame 1, and a lower pawl 706 is provided at the lower left part, the traverse screw 701 rises a certain distance and causes the ratchet 704 to touch the upper pawl 705, the upper pawl 705 is used to push the ratchet 704 to rotate a certain angle so that the traverse screw 701 rotates a certain angle, and the traverse slider 703 moves a certain distance laterally, the traverse screw 701 drops a certain distance and causes the ratchet 704 to touch the lower pawl 706, the lower pawl 706 is used to push the ratchet 704 to rotate a certain angle so that the traverse screw 701 rotates a certain angle, and the traverse slider 703 moves a certain distance laterally. The left end of the traverse limit light rod 702 is fixedly connected to the left lifting slider 403, and the right end is fixedly connected to the right lifting slider 503.

[0039] In this way, when the left lifting slider 403 and the right lifting slider 503 drive the transverse screw 701 to rise a certain distance and make the ratchet 704 touch the upper pawl 705, the upper pawl 705 pushes the ratchet 704 to rotate a certain angle, so that the transverse screw 701 rotates a certain angle relative to the left lifting slider 403 and the right lifting slider 503, and the transverse slider 703 moves a certain distance laterally, so that the nozzle bracket 2 can move a certain distance laterally along with the transverse slider 703, and when the left lifting slider 403 and the right lifting slider 503 drive the transverse screw 701 to descend a certain distance and make the ratchet 704 touch the lower pawl 706, the lower pawl 706 pushes the ratchet 704 to rotate a certain angle, so that the transverse screw 701 rotates a certain angle relative to the left lifting slider 403 and the right lifting slider 503, and the transverse slider 703 moves laterally a certain distance, so that the nozzle bracket 2 can also move laterally a certain distance along with the transverse slider 703. Therefore, through the setting of the upper pawl 705, the lower pawl 706 and the ratchet 704, there is no need to set up an additional power source to drive the transverse screw 701 to rotate, and the transverse screw 701 can be rotated a certain angle after rising and falling into place, thereby realizing the lateral movement of the transverse slider 703, thereby realizing the lateral movement of the nozzle bracket 2.

[0040] In one embodiment,

[0041] like Figure 4As shown, a water inlet adapter pipe 8 and an air inlet adapter pipe 9 are also fixed between the left lifting slider 403 and the right lifting slider 503. The water inlet end of the water inlet adapter pipe 8 is connected to the high-pressure water pump placed in the water tank through a water inlet main pipe, and the water outlet end of the water inlet adapter pipe 8 is connected to the water inlet end of each nozzle 3 through a water inlet branch pipe, the air inlet end of the air inlet adapter pipe 9 is connected to the air pump through the air inlet main pipe, and the exhaust end of the air inlet adapter pipe 9 is connected to the air inlet end of each nozzle 3 through an air inlet branch pipe.

[0042] Each water inlet pipeline is provided with a first flow meter, a first flow regulating valve, a first pressure gauge and a first pressure regulating valve, and each air inlet pipeline is provided with a second flow meter, a second flow regulating valve, a second pressure gauge and a second pressure regulating valve. Each first flow meter, each first pressure gauge, each second flow meter and each second pressure gauge are connected to the signal input end of the controller, and the signal output end of the controller is connected to each first flow regulating valve, each first pressure regulating valve, each second flow regulating valve and each second pressure regulating valve. Figure 6 .

[0043] In this way, the first flow meter monitors the water flow in the corresponding water inlet pipe in real time, and transmits the monitored water flow data to the controller, the controller analyzes the received water flow data, and adjusts the water flow in the corresponding water inlet pipe through the corresponding first flow regulating valve, thereby adjusting the water flow entering the corresponding nozzle 3, and the first pressure gauge monitors the water pressure in the corresponding water inlet pipe in real time, and transmits the monitored water pressure data to the controller, the controller analyzes the received water pressure data, and adjusts the water pressure in the corresponding water inlet pipe through the corresponding first pressure regulating valve, thereby adjusting the water pressure entering the corresponding nozzle 3, and the second flow meter monitors the gas flow in the corresponding air intake pipe in real time, and transmits the monitored gas flow data to the controller, the controller analyzes the received gas flow data, and adjusts the corresponding second flow regulating valve through the corresponding The valve adjusts the gas flow in the corresponding air intake branch pipe, and then adjusts the gas flow entering the corresponding nozzle 3, and the second pressure gauge monitors the gas pressure in the corresponding air intake branch pipe in real time, and transmits the monitored gas pressure data to the controller, the controller analyzes the received gas pressure data, and adjusts the gas pressure in the corresponding air intake branch pipe through the corresponding second pressure regulating valve, and then adjusts the gas pressure entering the corresponding nozzle 3; and water with a certain flow rate and a certain pressure and gas with a certain flow rate and a certain pressure entering the corresponding nozzle 3 are mixed and sprayed from the injection end of the nozzle 3, and by adjusting the flow rate and pressure of the water entering the nozzle 3 and the flow rate and pressure of the gas, the flow rate, pressure and injection angle of the spray water flow sprayed from the injection end of the nozzle 3 can be adjusted, so as to spray and flush the surface cooler more scientifically and accurately, and ensure the flushing effect.

[0044] In one embodiment,

[0045] The water inlet adapter pipe 8 and the air inlet adapter pipe 9 are both metal pipes, the water inlet main pipe, each water inlet pipe, the air inlet main pipe and each air inlet branch pipe are all hoses, and each water inlet pipe and each air inlet branch pipe are tied to the nozzle bracket 2.

[0046] Each first flow meter, each first flow regulating valve, each first pressure gauge, each first pressure regulating valve, each second flow meter, each second flow regulating valve, each second pressure gauge and each second pressure regulating valve are all fixed on the nozzle bracket 2.

[0047] The lower end of the support frame 1 is fixed on the support base 10. Figure 1 The air pump is an air compression pump; multiple nozzles 3 are evenly distributed on the nozzle bracket 2, so that the multiple nozzles 3 evenly distributed on the nozzle bracket 2 can spray water to wash different parts of the cooler at the same time, and the washing efficiency is high. Integrating multiple nozzles 3 on one nozzle bracket 2 can reduce the volume of the automatic cleaning device to meet the condition of a small space in the functional maintenance section after the cooler. Preferably, there are sixteen nozzles 3.

[0048] An automatic cleaning method for a surface cooler of a central air-conditioning unit in a tobacco factory is provided, wherein the automatic cleaning device for the surface cooler of a central air-conditioning unit in a tobacco factory is used for cleaning, specifically:

[0049] After the double-output shaft three-phase asynchronous motor 601 is started, the left output shaft and the right output shaft of the double-output shaft three-phase asynchronous motor 601 rotate synchronously and in the same direction, the left output shaft of the double-output shaft three-phase asynchronous motor 601 drives the left lifting screw 401 to rotate relative to the support frame 1 through the left cross shaft universal coupling 602 and the left reducer 603, the right output shaft of the double-output shaft three-phase asynchronous motor 601 drives the right lifting screw 501 to rotate relative to the support frame 1 through the right cross shaft universal coupling 604 and the right reducer 605, and the left lifting screw 401 and the right lifting screw 501 rotate synchronously and in the same direction, so that the left lifting slider 403 and the right lifting slider 503 are synchronously raised or lowered, thereby raising or lowering the transverse moving part, the nozzle bracket 2 is raised and lowered together with the transverse moving part, and the plurality of nozzles 3 are raised and lowered together with the nozzle bracket 2 and spray water to the surface cooler of the central air-conditioning unit of the tobacco factory during the lifting process;

[0050] When the left lifting slider 403 and the right lifting slider 503 drive the lateral movement screw 701 to rise a certain distance and make the ratchet 704 touch the upper pawl 705, the upper pawl 705 pushes the ratchet 704 to rotate a certain angle, so that the lateral movement screw 701 rotates a certain angle relative to the left lifting slider 403 and the right lifting slider 503, and the lateral movement screw 703 moves a certain distance laterally, so that the nozzle bracket 2 moves a certain distance laterally along with the lateral movement screw 703, and when the left lifting slider 403 and the right lifting slider 503 drive the lateral movement screw 701 When it descends a certain distance and makes the ratchet 704 touch the lower pawl 706, the lower pawl 706 pushes the ratchet 704 to rotate a certain angle, so that the transverse screw 701 rotates a certain angle relative to the left lifting slider 403 and the right lifting slider 503, and the transverse slider 703 moves laterally a certain distance, so that the nozzle bracket 2 also moves laterally a certain distance along with the transverse slider 703, and the multiple nozzles 3 move laterally along with the nozzle bracket 2 and spray water to the surface cooler during the lateral movement to remove dust accumulated on the surface of the fins and copper rib tubes of the surface cooler.

[0051] The support frame 1, left lifting screw 401, left limit rod 402, left lifting slide block 403, right lifting screw 501, right limit rod 502, right lifting slide block 503, nozzle bracket 2, and nozzle 3 in the automatic cleaning device are all made of stainless steel, and the double-shaft three-phase asynchronous motor 601 is waterproofed, which can meet the use requirements of the humid environment of the functional maintenance section after the surface cooler, ensuring the durability of the automatic cleaning device and the reliability of long-term operation.

[0052] Compared with the average replacement period of the surface cooler caused by traditional manual flushing, which is about one to one and a half years, the replacement period of the surface cooler is extended to three years after using the automatic cleaning device. A central air-conditioning unit includes 2-4 surface coolers, and the replacement cost is about 120,000 yuan. After the replacement period of the surface cooler is doubled, each central air-conditioning unit can save about 120,000 yuan every three years; and the heat exchange rate of the surface cooler is improved after using the automatic cleaning device, thereby further reducing the consumption of chilled water; in addition, the traditional manual method of using a high-pressure water gun to clean the surface cooler consumes a lot of water. After using the automatic cleaning device, the flow rate, pressure and spray angle of the spray water flow sprayed from the spray end of the nozzle 3 can be adjusted, thereby relatively reducing the amount of cleaning water.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic cleaning device for the surface cooler of a central air-conditioning unit in a tobacco factory, characterized in that: The invention comprises a support frame (1), wherein a left lifting component is provided at the left part of the support frame (1), and a right lifting component is provided at the right part thereof and is lifted synchronously with the left lifting component. A transverse moving component is provided between the left lifting component and the right lifting component, and a nozzle bracket (2) is provided on the transverse moving component. The nozzle bracket (2) is provided with a plurality of nozzles (3) for spraying water on the surface cooler of the central air-conditioning unit of the tobacco factory. The left lifting component and the right lifting component are lifted synchronously to drive the transverse moving component to lift and lower, and drive the nozzle bracket (2) to lift and lower, and the transverse moving component is also used to drive the nozzle bracket (2) to move laterally, and the plurality of nozzles (3) are lifted or lowered or moved laterally together with the nozzle bracket (2) to spray water on the surface cooler.

2. The automatic cleaning device for the surface cooler of the central air conditioning unit of a tobacco factory according to claim 1 is characterized by: The left lifting component comprises a vertical left lifting screw (401), and vertical left limit rods (402) are respectively arranged on the front and rear sides of the left lifting screw (401); a left lifting slider (403) is screwed onto the left lifting screw (401), and the left limit rods (402) on the front and rear sides both penetrate the left lifting slider (403) and are slidably connected to the left lifting slider (403); the right lifting component is symmetrically arranged with the left lifting component, and the right lifting component comprises a right lifting screw (501), a right limit rod (502) and a right lifting slider (503); the left lifting screw (401) and the right lifting screw (501) are driven by a power assembly to rotate synchronously and in the same direction; the transverse moving component is arranged between the left lifting slider (403) and the right lifting slider (503).

3. The automatic cleaning device for the surface cooler of the central air conditioning unit of a tobacco factory according to claim 2 is characterized by: The power assembly comprises a double-output shaft three-phase asynchronous motor (601), the left output shaft of the double-output shaft three-phase asynchronous motor (601) is connected to the fast shaft of the left reducer (603) through a left cross-axis universal coupling (602), the slow shaft of the left reducer (603) is connected to the top of the left lifting screw (401), the right output shaft of the double-output shaft three-phase asynchronous motor (601) is connected to the fast shaft of the right reducer (605) through a right cross-axis universal coupling (604), and the slow shaft of the right reducer (605) is connected to the top of the right lifting screw (501).

4. The automatic cleaning device for the surface cooler of the central air conditioning unit of a tobacco factory according to claim 2 is characterized by: The transverse moving component includes a transverse moving screw (701) arranged horizontally along the left-right direction, and the upper and lower sides of the transverse moving screw (701) are provided with transverse limiting light rods (702) parallel to the transverse moving screw (701), the left end of the transverse moving screw (701) is rotationally connected to the left lifting slider (403), and the right end is rotationally connected to the right lifting slider (503), the transverse moving screw (701) is screwed with a transverse moving slider (703), the transverse limiting light rods (702) on the upper and lower sides both penetrate the transverse moving slider (703) and are slidably connected to the transverse moving slider (703), the nozzle bracket (2) is fixed on the transverse moving slider (703), and a ratchet is also sleeved and fixed on the transverse moving screw (701) at a position close to the left lifting slider (403). (704), an upper pawl (705) is provided at the upper left part of the support frame (1) and a lower pawl (706) is provided at the lower left part, the transverse screw (701) rises a certain distance and causes the ratchet (704) to touch the upper pawl (705), the upper pawl (705) is used to push the ratchet (704) to rotate a certain angle so that the transverse screw (701) rotates a certain angle and causes the transverse slider (703) to move laterally a certain distance, the transverse screw (701) descends a certain distance and causes the ratchet (704) to touch the lower pawl (706), the lower pawl (706) is used to push the ratchet (704) to rotate a certain angle so that the transverse screw (701) rotates a certain angle and causes the transverse slider (703) to move laterally a certain distance.

5. The automatic cleaning device for the surface cooler of the central air conditioning unit of a tobacco factory according to claim 2 is characterized by: A water inlet adapter pipe (8) and an air inlet adapter pipe (9) are also fixed between the left lifting slider (403) and the right lifting slider (503); the water inlet end of the water inlet adapter pipe (8) is connected to a high-pressure water pump disposed in a water tank via a water inlet main pipe; the water outlet end of the water inlet adapter pipe (8) is connected to the water inlet end of each nozzle (3) via a water inlet branch pipe; the air inlet end of the air inlet adapter pipe (9) is connected to an air pump via an air inlet main pipe; and the air outlet end of the air inlet adapter pipe (9) is connected to the air inlet end of each nozzle (3) via an air inlet branch pipe.

6. The automatic cleaning device for the surface cooler of the central air conditioning unit of a tobacco factory according to claim 5 is characterized by: Each of the water inlet branch pipes is provided with a first flow meter, a first flow regulating valve, a first pressure gauge and a first pressure regulating valve, and each of the air intake branch pipes is provided with a second flow meter, a second flow regulating valve, a second pressure gauge and a second pressure regulating valve. Each of the first flow meters, each first pressure gauge, each second flow meter and each second pressure gauge is connected to the signal input end of the controller, and the signal output end of the controller is connected to each first flow regulating valve, each first pressure regulating valve, each second flow regulating valve and each second pressure regulating valve.

7. The automatic cleaning device for the surface cooler of the central air conditioning unit of a tobacco factory according to claim 5 is characterized by: The water inlet switching pipe (8) and the air inlet switching pipe (9) are both metal pipes, the water inlet main pipe, each water inlet branch pipe, the air inlet main pipe and each air inlet branch pipe are all hoses, and each water inlet branch pipe and each air inlet branch pipe are tied to the nozzle bracket (2).

8. The automatic cleaning device for the surface cooler of the central air conditioning unit of a tobacco factory according to claim 6 is characterized by: Each of the first flow meters, each of the first flow regulating valves, each of the first pressure gauges, each of the first pressure regulating valves, each of the second flow meters, each of the second flow regulating valves, each of the second pressure gauges and each of the second pressure regulating valves are fixed on the nozzle bracket (2).

9. The automatic cleaning device for the surface cooler of the central air conditioning unit of a tobacco factory according to claim 5, characterized in that: The lower end of the support frame (1) is fixed on the support base (10); the air pump is an air compression pump; and the plurality of nozzles (3) are evenly distributed on the nozzle bracket (2).

10. An automatic cleaning method for a surface cooler of a central air conditioning unit in a tobacco factory, using the automatic cleaning device for a surface cooler of a central air conditioning unit in a tobacco factory as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, controlling the left lifting component and the right lifting component to rise and fall synchronously, so as to drive the transverse moving component to rise and fall, the nozzle bracket (2) to rise and fall together with the transverse moving component, and the plurality of nozzles (3) to rise and fall together with the nozzle bracket (2) and spray water to wash the surface cooler of the central air conditioning unit of the tobacco factory during the lifting process; S2. Control the lateral movement of the lateral moving component to drive the nozzle bracket (2) to move lateral, and the plurality of nozzles (3) move lateral along with the nozzle bracket (2) and spray water to the surface cooler during the lateral movement.

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