Dust removal self-cleaning device suitable for civil engineering air duct

Abstract

The utility model relates to the field of cleaning dust removal, in particular to a dust removal self-cleaning device suitable for civil engineering air flues, which comprises a fixing frame, a transmission module, a PLC (programmable logic controller) control cabinet, a water supply module and a spray rod, the spraying rod is fixedly arranged on the transmission module and is perpendicular to the belt assembly, the belt assembly drives the spraying rod to move on the part fixing frame, one or more spraying parts are arranged on the outer wall of the spraying rod, and the water supply module is connected to the PLC control cabinet. The self-cleaning device has the capability of automatically and uniformly spraying and cleaning the electrostatic filter element, and structurally, the self-cleaning device has the adaptability of being flexibly matched with air ducts of various sizes. The high-pressure water pump is matched with the fan-shaped nozzle, so that the electrostatic dust collector is automatically moved and cleaned according to the dirt condition of the electrostatic dust collector, excessive waste of water resources is avoided, the cleaning water consumption is saved, meanwhile, it is ensured that the electrostatic ion core can be thoroughly cleaned, and efficient operation and the air purification effect of a ventilation system are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of cleaning and dust removal, in particular to a dust removal and self-cleaning device suitable for civil engineering air ducts. Background Art

[0002] In some underground passages and underground rail transit hubs, the air quality of ventilation becomes particularly important. In order to ensure air quality, the air purification effect needs to be guaranteed. At the front end of the air conditioning unit, the installation of primary and medium efficiency filters and electrostatic dust removal filters is the key to ensuring air quality. However, long-term operation will cause these filters to collect too much dust on the surface area. If they are not cleaned in time, the filtration efficiency of the filters will be reduced, the effect of the filters will be affected, and even secondary pollution of the air may occur, making the air quality entering the air handling unit unguaranteed, causing dust accumulation on the surface of the surface cooling section, affecting the heat exchange effect of the surface cooling section, and increasing the air circulation resistance. This will affect the increase in energy consumption of the ventilation system. This not only affects the air quality of the environment, increases the operating cost of the system, but also increases the burden of energy consumption.

[0003] The traditional cleaning method is manual regular cleaning, but such places often have a large air intake and air flow area, and it is very difficult to manually check the degree of filter dirtiness and disassemble and clean the dirty filters. Even with auxiliary equipment, there are still many shortcomings in solving the problem of filter dust collection. First of all, this manual dust cleaning method is time-consuming and labor-intensive, and requires specialized personnel to clean it regularly. In addition, the current high labor costs make the cost of manual filter cleaning very high. Secondly, due to the special working principle and the specific conditions of the installation location, the electrostatic dust removal filters in some projects may not be able to be effectively cleaned and maintained at all. These factors will seriously affect the normal operation of the ventilation system and reduce the reliability and stability of the system.

[0004] Although the self-cleaning technology can realize automatic cleaning of the filter, save human resources, and ensure the effective cleaning and long-term stable operation of the filter, there are many water spray and air drying devices on the market, but there are also many problems. For example, some water spray and air drying devices have uneven spraying, resulting in incomplete cleaning of some areas; in addition, for places with large wind areas, the operation stability of the self-cleaning device is not enough, resulting in unsatisfactory cleaning effect. Summary of the invention

[0005] In response to the above-mentioned technical problems, the utility model provides a dust removal and self-cleaning device suitable for civil engineering air ducts, comprising a fixed frame, a transmission module, a PLC control cabinet, a water supply module and a spray rod, wherein the transmission module is fixedly arranged on the fixed frame, the transmission module comprises one or more belt assemblies, the spray rod is fixedly arranged on the transmission module and is perpendicular to the belt assembly, the belt assembly drives the spray rod to move on the fixing frame, the outer wall of the spray rod is provided with one or more spray parts, and the water supply module is connected to the PLC control cabinet.

[0006] Beneficial Effects

[0007] The utility model has the ability to automatically and evenly spray and clean the electrostatic ion core. In terms of structure, the self-cleaning device has the adaptability to flexibly match air ducts of various sizes. Through the high-pressure water pump and the fan-shaped nozzle, it automatically moves and cleans according to the dirtiness of the electrostatic precipitator, avoiding excessive waste of water resources and saving water for cleaning. At the same time, it ensures that the electrostatic ion core can be thoroughly cleaned, ensuring the efficient operation of the ventilation system and the air purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0009] Figure 1 It is a partial schematic diagram of the fixing frame of the utility model;

[0010] Figure 2 A partial schematic diagram of the transmission module of the utility model Figure 1 ;

[0011] Figure 3 A partial schematic diagram of the transmission module of the utility model Figure 2 ;

[0012] Figure 4 It is a partial schematic diagram of the vertical rod of the utility model;

[0013] Figure 5 It is a partial schematic diagram of the spraying part of the utility model;

[0014] Figure 6 It is a partial schematic diagram of the water supply module of the utility model;

[0015] Figure 7 This is a cleaning map for the utility model.

[0016] Reference numerals:

[0017] 1 fixed frame; 11 vertical rod; 111 locking piece; 12 horizontal rod; 13 fixing fixture; 2 transmission module; 21 belt assembly; 211 transmission buckle; 212 limiter; 213 driving mechanism; 22 fixing piece; 221 fixing buckle; 3 PLC control cabinet; 4 water supply module; 41 water inlet hose; 42 booster pump; 43 electric solenoid valve; 44 filter; 45 check valve; 5 spray rod; 51 spray piece; 551 spray valve; 552 nozzle. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0019] In the description of the present invention, the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0020] In the description of the present invention, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0021] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected or indirectly connected through an intermediate medium, and it can make the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0022] like Figure 1-Figure 4 The dust removal self-cleaning device shown is suitable for civil engineering air ducts, comprising a fixing frame 1, a transmission module 2, a PLC control cabinet 3, a water supply module 4 and a spray rod 5;

[0023] Furthermore, the transmission module 2 is fixedly arranged on the fixing frame 1;

[0024] Further, the transmission module 2 includes one or more belt assemblies 21;

[0025] Furthermore, the spray bar 5 is fixedly arranged on the transmission module 2 and is perpendicular to the belt assembly 21;

[0026] Furthermore, the belt assembly 21 drives the spray bar 5 to move on the fastener frame 1;

[0027] Furthermore, the outer wall of the spray bar 5 is provided with one or more spray members 51;

[0028] Furthermore, the water supply module 4 is connected to the PLC control cabinet 3;

[0029] Among them, the PLC control cabinet 3 can be started on-site by the staff, or it can be connected to a mobile terminal for remote start to operate the opening and closing states of the device;

[0030] When the device is used in a scene with a larger cleaning cross-section, the length of the spray bar 5 can be increased as needed. At this time, in order to ensure the stability of the equipment, the height of the fixed frame 1 is also increased as needed. The number of belt assemblies 21 is adjusted according to the length of the spray bar 5 and appropriately increased to ensure that the spray bar 5 remains stable when moving. Figure 1 As shown, three belt assemblies 21 are provided;

[0031] At the same time, the number of the spraying elements 51 can be increased or decreased according to the length of the spraying rod 5 .

[0032] In some embodiments, the fixing frame 1 includes a plurality of vertical rods 11 and a plurality of horizontal rods 12;

[0033] Furthermore, a locking member 111 is provided at the end of the vertical rod 11, which is used to fix the device body to the wall of the air duct;

[0034] Furthermore, the vertical rod 11 is evenly provided with a plurality of fixing clamps 13, and the transmission module 2 is horizontally fixed to the fixing frame 1 through the fixing clamps 13;

[0035] Among them, the locking member 121 can be matched with fixing members such as angle irons and angle steels to form a fixing fixture for the air duct wall to ensure the stability of the device during the cleaning process;

[0036] At the same time, since the spray boom 5 may be as long as 7 to 10 meters, when the spray boom 5 moves left and right, in order to maintain the balance of the spray boom 5 and avoid shaking, the horizontal rods 12 can be increased or decreased according to the length to enhance the stability of the spray boom 5 during movement.

[0037] In some embodiments, the transmission module 2 further includes a fixing member 22;

[0038] Furthermore, the belt assembly 21 is fixedly provided with a transmission buckle 211;

[0039] Furthermore, the transmission buckle 211 is used to fix the fixing member 22 to the belt assembly 21. The fixing member 22 and the belt assembly 21 are perpendicular to each other. When the belt assembly 21 reciprocates, it drives the fixing member 22 to move in the horizontal direction.

[0040] In some embodiments, a plurality of fixing buckles 221 are provided on the fixing member 22 , and the spray rod 5 is fixedly connected to the fixing member 22 via the fixing buckles 221 .

[0041] In some embodiments, a check valve is provided between the water supply module 4 and the spray rod 5. Specifically, the check valve is provided at the water inlet end of the spray rod 5 and is rigidly connected to the spray rod 5.

[0042] Furthermore, when the water supply module 4 is started, the check valve prevents clean water from flowing back into the booster water pump 42 , thereby ensuring the safe operation of the booster water pump 42 .

[0043] In some embodiments, the spray member 51 includes a spray valve 551 and a spray head 552;

[0044] The water inlet of the spray valve 551 is fixedly arranged on the spray rod 5, and the spray head 552 is fixedly connected to the water outlet of the spray valve 551;

[0045] Further, the nozzle 552 is an adjustable fan-shaped nozzle;

[0046] Furthermore, the adjustable spray angle is between 60 degrees and 120 degrees, and the spray angle is adjusted specifically by adjusting the water pressure of the booster water pump 42. The greater the water pressure, the greater the spray angle.

[0047] The valve core inside the spray valve 551 can increase the flow rate of the water passing through, thereby increasing the pressure.

[0048] In some embodiments, the spray head 552 and the spray bar 5 are made of stainless steel;

[0049] For example, high-hardness 304 stainless steel is used to prevent corrosion, resist aging, and have a longer service life. In addition, a smooth flow channel can be set inside the spray rod 5, or a flow stabilizer can be added to ensure that the water flow during the spraying process is more stable and the smooth use of the spray part 51 is guaranteed.

[0050] In some embodiments, a stopper 212 is provided at each end of the belt assembly 21;

[0051] Further, when the spray bar 5 moves to the stopper 212, the belt assembly 21 starts to move in the opposite direction;

[0052] Further, the belt assembly 21 also includes a driving mechanism 213;

[0053] Further, the driving mechanism 213 is disposed at one end of the belt assembly to control the movement of the belt assembly 21;

[0054] Furthermore, when multiple belt assemblies 21 are provided, the driving mechanism 213 can also ensure that the movement speeds of the multiple belt assemblies 21 are the same.

[0055] In some embodiments, the water supply module 4 includes a water inlet hose 41, a booster pump 42, an electric solenoid valve 43, a filter 44 and a check valve 45;

[0056] Furthermore, one end of the water inlet hose 41 is fixedly connected to the water inlet of the spray bar 5, and the other end is fixedly connected to the water outlet of the booster water pump 42;

[0057] Furthermore, a check valve 45 is provided at the water outlet of the booster water pump 42 to prevent the clean water remaining in the spray bar 5 from flowing back into the booster water pump 42 through the hose 41 after the booster water pump 42 stops operating, thereby preventing the booster water pump 42 from being damaged.

[0058] Furthermore, the electric solenoid valve 42 is arranged between the water supply port and the water inlet of the booster water pump 42 to ensure continuous water inlet of the booster water pump 42 and avoid the booster water pump 42 from burning out.

[0059] Furthermore, the filter 44 is disposed between the booster pump 42 and the electric solenoid valve 43 to prevent impurities in the water from entering the spray bar 5 and clogging the spray head 552;

[0060] The water inlet hose 41 ensures that clean water can continuously enter the spray rod 5 during its movement, and the booster pump 42 provides sufficient water pressure for the spray head 552 to achieve the required lift.

[0061] In some embodiments, the PLC control cabinet 3 is also provided with a power supply monitor for monitoring voltage and current anomalies on the equipment to be cleaned;

[0062] like Figure 5As shown, a cleaning map is established, and the vertically arranged electrostatic ion cores are mapped in the direction of the X-axis, and the monitoring objects are grouped in a vertical column, where the electrostatic ion cores in a vertical column are uniformly powered. When the power monitor detects a certain area, such as S1, whose voltage and current abnormal feedback reaches a certain threshold range, the spray rod 5 moves to the corresponding area for cleaning. The cleaning time can be set by the PLC control cabinet 3. A fixed cleaning time can be set. For example, after detecting that a local cleaning is needed, the local spraying is stopped after 1 minute. Cleanliness judgment can also be used. For example, after detecting that a local cleaning is needed, the cleaning is stopped when the current abnormal feedback in the area is lower than the set threshold. Since a cleaning map is set, when there is no need for comprehensive cleaning, targeted cleaning of specific areas can effectively save water resources and avoid excessive waste of water resources.

[0063] For example, the device is started through the switch of the PLC control cabinet 3. The start-up can be divided into remote start-up and local start-up. After the staff sets the cleaning parameters in advance, the device is turned on and can run according to the time cycle. When the motor starts to operate, the booster pump 42 starts. After a delay of 2-5 seconds, clean water is sent to the spray rod 5 through the booster pump 42 and sprayed out by the spray part 51. The cleaning procedure begins and the device to be cleaned is sprayed and cleaned. The spray angle and water pressure of the spray part 51 can be adjusted synchronously in the PLC control cabinet as needed. At this time, as needed, the belt module 21 starts to move, driving the spray rod 5 to go back and forth. When the spray rod 5 reaches the right limiter 22 of the belt module 21, the belt module 21 starts to move in the opposite direction until it reaches the left limiter 22 of the belt module 21, and circulates in sequence. When the water spraying is finished, the booster pump 42 stops working, and the spray rod 5 is reset in front of the left limiter 22 of the belt module 21. The motor is turned off to complete the cleaning work.

[0064] Example 1 in practical application: When the device is used for an air duct with a smaller ventilation cross-section, such as 3200mm*2400mm, it is equipped with 9*4 ion boxes. At this time, 6 spray parts 51 can be provided, the water pressure is set to 0.3-1MPa, and a water receiving tray is set at the bottom of the air duct. The bottom of the water receiving tray is connected to a drain pipe to discharge the cleaned sewage into the sewage pipe system.

[0065] In the application example, example 2 is given: when the device is used for an air duct with a larger ventilation cross-section, such as 4800mm*4000mm, the purification section is equipped with 14*8 ion boxes. At this time, the cleaning cross-section height is higher, and 8 spray parts 51 can be configured. The water pressure is set to 0.3-1MPa. The water pressure increases with the number of spray parts 51 set.

[0066] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. A dust removal self-cleaning device suitable for civil engineering air ducts, comprising a fixing frame (1), a transmission module (2), a PLC control cabinet (3), a water supply module (4) and a spray rod (5), characterized in that: The transmission module (2) is fixedly arranged on the fixing frame (1); The transmission module (2) includes one or more belt assemblies (21); The spray rod (5) is fixedly mounted on the transmission module (2) and is perpendicular to the belt assembly (21); The belt assembly (21) drives the spray rod (5) to move on the fixed frame (1); One or more spraying parts (51) are arranged on the outer wall of the spraying bar (5); The water supply module (4) is connected to the PLC control cabinet (3); The fixing frame (1) comprises a plurality of vertical rods (11) and a plurality of horizontal rods (12); The end of the vertical rod (11) is provided with a locking piece (111) for fixing the device body to the wall of the air duct; The vertical rod (11) is also evenly provided with a plurality of fixing clamps (13), and the transmission module (2) is horizontally fixed to the fixing frame (1) via the fixing clamps (13); The transmission module (2) also includes a fixing member (22); The belt assembly (21) is fixedly provided with a transmission buckle (211); The transmission buckle (211) is used to fix the fixing member (22) to the belt assembly (21); the fixing member (22) and the belt assembly (21) are perpendicular to each other; when the belt assembly (21) reciprocates, it drives the fixing member (22) to move in a horizontal direction.

2. A dust removal self-cleaning device suitable for civil engineering air ducts according to claim 1, characterized in that: The fixing member (22) is provided with a plurality of fixing buckles (221), and the spray rod (5) is fixedly connected to the fixing member (22) via the fixing buckles (221).

3. A dust removal self-cleaning device suitable for civil engineering air ducts according to claim 1, characterized in that: A check valve is provided between the water supply module (4) and the spray rod (5); When the water supply module (4) is started, the check valve prevents clean water from flowing back into the booster pump (42).

4. A dust removal self-cleaning device suitable for civil engineering air ducts according to claim 1, characterized in that: The spraying member (51) comprises a spraying valve (551) and a spray head (552); The water inlet of the spray valve (551) is fixedly arranged on the spray rod (5), and the spray head (552) is fixedly connected to the water outlet of the spray valve (551); The nozzle (552) is an adjustable fan-shaped nozzle; The adjustable spray angle is between 60 and 120 degrees.

5. A dust removal self-cleaning device suitable for civil engineering air ducts according to claim 4, characterized in that: The spray head (552) and the spray rod (5) are made of stainless steel.

6. A dust removal self-cleaning device suitable for civil engineering air ducts according to claim 1, characterized in that: A stopper (212) is provided at each end of the belt assembly (21); When the spray bar (5) moves to the stopper (212), the belt assembly (21) starts to move in the opposite direction; The belt assembly (21) further includes a driving mechanism (213); The driving mechanism (213) is arranged at one end of the belt assembly to control the movement of the belt assembly (21); When multiple belt assemblies (21) are provided, the driving mechanism (213) can also ensure that the movement speeds of the multiple belt assemblies (21) are the same.

7. A dust removal self-cleaning device suitable for civil engineering air ducts according to any one of claims 1 to 6, characterized in that: The water supply module (4) comprises a water inlet hose (41), a booster pump (42), an electric solenoid valve (43), a filter (44) and a check valve (45); One end of the water inlet hose (41) is fixedly connected to the water inlet of the spray bar (5), and the other end is fixedly connected to the water outlet of the booster water pump (42); The water outlet of the booster water pump (42) is also provided with a check valve (45) to prevent clean water from flowing back into the booster water pump (42); The electric solenoid valve (43) is arranged between the water supply port and the water inlet of the booster water pump (42) to ensure continuous water inlet to the booster water pump (42) and avoid the booster water pump (42) from burning out. The filter (44) is arranged between the booster water pump (42) and the electric solenoid valve (43) to prevent impurities in the water from clogging the nozzle (552).

8. A dust removal self-cleaning device suitable for civil engineering air ducts according to claim 7, characterized in that: The PLC control cabinet (3) is also provided with a power supply monitor for monitoring voltage and current anomalies on the equipment to be cleaned.

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