Protective device

Abstract

Relates to the field of thermal control of a thermal power plant, and discloses a protective device which comprises a protective box for protecting a thermal control element, a filter screen and a ventilation opening formed in the protective box, the ventilation hood is detachably fixed to the protection box and located on the outer side of the filter screen; the cleaning unit is arranged on the ventilation hood, the cleaning unit comprises a connecting rod arranged on the ventilation hood, a cleaning roller arranged on the connecting rod, a pull rod arranged on the connecting rod and a bottom plate fixed to the lower end of the pull rod, and the bottom plate is fixedly connected with the ventilation hood through bolts; the cleaning unit is adjusted to move on the filter screen, dirt such as dust and impurities attached to the inner walls of the meshes is effectively brushed away, smoothness of the filter screen is guaranteed, thermal control elements are protected against pollution, and the heat dissipation efficiency of the thermal control elements in the protection box can be kept.

Description

Technical Field

[0001] This utility model relates to the field of thermal control technology in thermal power plants, specifically a protective device. Background Technology

[0002] Thermal control devices mainly include: pressure gauges; pressure transmitters; differential pressure transmitters; pressure calibrators; thermal signal calibrators; local thermometers; resistance temperature detectors (RTDs); thermocouples; level transmitters; temperature transmitters; pressure sensors; level transmitters, level gauges; intelligent digital displays; flashing alarms; paperless recorders; flow meters; pressure calibration devices; temperature calibration devices, etc. Common protective devices for thermal control are generally protected by protective cabinets, with the thermal control devices installed in the middle of the cabinet and cooled by cooling fans.

[0003] The existing equipment has the following disadvantages: Since the heat dissipation vents are generally equipped with filters, after a long period of use, a large amount of impurities will be adsorbed on the surface of the filters, which will easily clog the pores of the filters and reduce the heat dissipation efficiency of the device.

[0004] Therefore, this application proposes a protective device to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a protective device to solve the problem that after prolonged use, the surface of the filter screen will adsorb a large amount of impurities, causing the pores of the filter screen to be easily blocked, thus reducing the heat dissipation efficiency of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective device, comprising a protective box for protecting thermal control components, and further comprising:

[0007] A filter screen is installed at the ventilation opening of the protective box to filter impurities in the air;

[0008] A ventilation hood is detachably fixed to the protective box and located outside the filter screen;

[0009] A cleaning unit, installed on the ventilation hood, is used to clean the filter screen.

[0010] The cleaning unit includes a connecting rod on the ventilation hood, a cleaning roller on the connecting rod, a pull rod on the connecting rod, and a base plate fixed to the lower end of the pull rod. The base plate is fixedly connected to the ventilation hood by bolts, and the base plate has fixing holes for installing bolts. A handle is fixed to the lower end of the base plate.

[0011] The cleaning roller is provided with cleaning brushes at intervals, and the cleaning brushes extend into the mesh of the filter screen.

[0012] The connecting rod is provided with a slider at the position where it connects to the ventilation hood, and the ventilation hood has a groove at the corresponding position of the slider for the slider to move.

[0013] The upper end of the pull rod is fixed with a mounting ring, and the connecting rod passes through the mounting ring.

[0014] The connecting rod is equipped with a transmission component, which includes a gear sleeved on the connecting rod and a rack fixed on the protective box. The gear and the rack are meshed together.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model adjusts the cleaning unit, allowing it to move on the filter screen to effectively brush away dust, impurities, and other contaminants adhering to the inner wall of the mesh, ensuring the filter screen's unobstructed flow, protecting the thermal control components from contamination, and maintaining the heat dissipation efficiency of the thermal control components inside the protective box. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure in one embodiment of the present invention;

[0018] Figure 2 This is a side view of the structure in one embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of one embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the connection between the cleaning unit and the ventilation hood in one embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the protective box in one embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the cleaning unit in one embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the ventilation hood in one embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the transmission component in one embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the connection between the cleaning unit and the filter screen in one embodiment of the present invention.

[0026] In the diagram: 1. Protective box; 11. Box door; 12. Thermal control element; 13. Cooling fan; 2. Ventilation hood; 201. Slide rail; 3. Cleaning unit; 31. Connecting rod; 311. Sliding block; 32. Cleaning roller; 321. Cleaning brush; 33. Transmission component; 331. Gear; 332. Rack; 34. Pull rod; 341. Mounting ring; 35. Base plate; 3501. Fixing hole; 36. Handle; 4. Filter screen. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-9 This utility model provides a technical solution: a protective device, including a protective box 1 for protecting the thermal control element 12, and further including:

[0029] Filter 4 is installed at the ventilation opening of the protective box 1 to filter impurities in the air;

[0030] Ventilation hood 2 is detachably fixed to protective box 1 and located outside filter screen 4;

[0031] The cleaning unit 3 is installed on the ventilation hood 2 and is used to clean the filter screen 4;

[0032] A cooling fan 13 is installed on the ventilation opening of the protective box 1, and a box door 11 is connected to the protective box 1.

[0033] It should be noted that during operation, the door 11 is opened, the thermal control element 12 is installed inside the protective box 1, and the cooling fan 13 is turned on to ventilate and dissipate heat inside the protective box 1. The ventilation cover 2 can prevent rainwater from entering the protective box 1. After the equipment has been used for a period of time, the filter screen 4 needs to be cleaned. The cleaning unit 3 is adjusted to move on the filter screen 4, effectively brushing away dust, impurities and other dirt attached to the inner wall of the mesh, ensuring the unobstructed flow of the filter screen 4, protecting the thermal control element 12 from contamination, and maintaining the heat dissipation efficiency of the thermal control element 12 inside the protective box 1, improving its working stability and service life. The cleaning unit 3 is set on the ventilation cover 2, and the filter screen 4 can be cleaned through simple operation without disassembling the filter screen 4, which greatly improves the cleaning efficiency and convenience.

[0034] In one embodiment, the cleaning unit 3 includes a connecting rod 31 disposed on the ventilation hood 2, a cleaning roller 32 disposed on the connecting rod 31, a pull rod 34 disposed on the connecting rod 31, and a base plate 35 fixed to the lower end of the pull rod 34. The base plate 35 is fixedly connected to the ventilation hood 2 by bolts. The base plate 35 has a fixing hole 3501 for mounting bolts, and a handle 36 is fixed to the lower end of the base plate 35.

[0035] This design is for reference. Figure 4-9 The cleaning unit 3 is mounted on the ventilation hood 2 via a connecting rod 31. This design makes the cleaning unit 3 and the ventilation hood 2 a single unit, facilitating installation and disassembly while ensuring stability during the cleaning process. The cleaning roller 32 is mounted on the connecting rod 31 and can roll as the connecting rod 31 moves, effectively cleaning the filter screen 4 and improving cleaning efficiency. The base plate 35 is fixedly connected to the ventilation hood 2 by bolts, and the base plate 35 has fixing holes 3501 for mounting bolts. This detachable design makes the cleaning unit 3 easy to maintain and replace. A handle 36 is fixed to the lower end of the base plate 35. The operator can pull the base plate 35 down by holding the handle 36, which causes the pull rod 34 to move the connecting rod 31 down, allowing the cleaning roller 32 to clean the impurities on the filter screen 4, improving the comfort and convenience of operation.

[0036] In one embodiment, cleaning brushes 321 are spaced apart on the cleaning roller 32, and the cleaning brushes 321 extend into the mesh of the filter screen 4.

[0037] This design is for reference. Figure 4 ,as well as Figure 9 The cleaning brush 321 can penetrate deep into the mesh of the filter screen 4 to effectively remove dust, impurities and other dirt attached to the inner wall of the mesh, ensuring the unobstructed flow of the filter screen 4. The spaced cleaning brushes 321 can cover the entire surface of the filter screen 4, avoiding any missed cleaning areas and improving the comprehensiveness and thoroughness of cleaning. The cleaned filter screen 4 can restore its original filtration efficiency, effectively blocking impurities in the air from entering the protective box 1 and protecting the thermal control element 12 from contamination. Regular cleaning and maintenance can extend the service life of the filter screen 4, reduce the frequency of replacement due to clogging, and reduce maintenance costs.

[0038] In one embodiment, a slider 311 is provided at the position where the connecting rod 31 is connected to the ventilation hood 2, and a groove 201 for the slider 311 to move is provided at the corresponding position of the ventilation hood 2, and the connecting rod 31 and the slider 311 are rotatably connected.

[0039] This design is for reference. Figure 6The design of the slider 311 and the groove 201 provides stable support and accurate guidance for the movement of the connecting rod 31 on the ventilation hood 2. This design ensures that the cleaning unit 3 will not deviate from the predetermined track during the movement, maintaining the accuracy and consistency of the cleaning operation.

[0040] In one embodiment, the upper end of the pull rod 34 is fixed with a mounting ring 341, and the connecting rod 31 passes through the mounting ring 341.

[0041] This design is for reference. Figure 6 ,as well as Figure 8 The mounting ring 341 provides an additional support point for the connecting rod 31. The connecting rod 31 is rotatably sleeved in the mounting ring 341, which enhances the connection strength between the connecting rod 31 and the pull rod 34. This design makes the cleaning unit 3 more stable during movement and reduces the risk of failure caused by loose or broken connections.

[0042] In one embodiment, a transmission component 33 is provided on the connecting rod 31. The transmission component 33 includes a gear 331 sleeved on the connecting rod 31 and a rack 332 fixed on the protective box 1. The gear 331 and the rack 332 are meshed and connected.

[0043] This design is for reference. Figure 6 ,as well as Figure 8 When the pull rod 34 drives the connecting rod 31 to move down, the gear 331 and the rack 332 mesh together, which can drive the connecting rod 31 to rotate in the mounting ring 341, thereby driving the cleaning brush 321 to rotate and brush the filter screen 4, further improving the cleaning efficiency of the filter screen 4.

Claims

1. A protection device comprising a protection box (1) for protecting a thermal control element (12), characterized in that, Also includes: A filter screen (4) is installed at the ventilation opening of the protective box (1) to filter impurities in the air; Ventilation hood (2) is detachably fixed to the protective box (1) and located outside the filter screen (4); A cleaning unit (3) is installed on the ventilation hood (2) for cleaning the filter screen (4).

2. A guard according to claim 1, characterised in that: The cleaning unit (3) includes a connecting rod (31) on the ventilation hood (2), a cleaning roller (32) on the connecting rod (31), a pull rod (34) on the connecting rod (31), and a base plate (35) fixed to the lower end of the pull rod (34). The base plate (35) is fixedly connected to the ventilation hood (2) by bolts. The base plate (35) has fixing holes (3501) for installing bolts. A handle (36) is fixed to the lower end of the base plate (35).

3. A guard according to claim 2, wherein: The cleaning roller (32) is provided with cleaning brushes (321) spaced apart, and the cleaning brushes (321) extend into the mesh of the filter screen (4).

4. A protective device according to claim 2, characterized in that: A slider (311) is provided at the position where the connecting rod (31) connects to the ventilation hood (2), and the ventilation hood (2) is provided with a groove (201) at the position corresponding to the slider (311) for the slider (311) to move.

5. The guard of claim 2, wherein: The upper end of the pull rod (34) is fixed with an installation ring (341), and the connecting rod (31) passes through the installation ring (341).

6. A guard according to claim 2, wherein: The connecting rod (31) is provided with a transmission component (33), which includes a gear (331) sleeved on the connecting rod (31) and a rack (332) fixed on the protective box (1). The gear (331) and the rack (332) are meshed and connected.

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