Rectifier protection structure of oxidation equipment

Abstract

The utility model discloses a rectifier protection structure of oxidation equipment, which is characterized in that a cross beam is transversely arranged, a vertical beam is vertically arranged, and the cross beam and the vertical beam are fixedly connected with each other and enclose a square frame structure; the box door is arranged on the front side of the frame structure and hinged to the vertical beam on one side, and the bottom plate is fixedly connected to the rear side of the frame structure. The line bank is arranged on the bottom plate in the frame structure, is provided with a three-core phase line and a one-core zero line, and is connected with the power distribution cabinet through a cable; an exhaust nozzle is arranged at the top of the frame structure, a wire inlet nozzle and an air inlet nozzle are arranged at the bottom of the frame structure, and the air inlet nozzle is connected with an air inlet device through an air inlet pipe. The design of the line bank ensures the safe connection of the cable and the power distribution cabinet, and the reasonably configured phase line and zero line make the circuit more stable, so that the rectifier is separated from the power distribution cabinet, the rectifier is conveniently configured near the oxidation equipment, and the smooth transmission of the current is maintained.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment equipment, in particular to a rectifier protection structure of oxidation equipment. Background Art

[0002] In the field of wastewater treatment, oxidation equipment refers to equipment used to remove organic matter, ammonia nitrogen, and other pollutants from wastewater through oxidation reactions. Common oxidation equipment includes aeration tanks, biological oxidation ponds, oxidation ditches, photoelectrocatalytic reactors, and membrane bioreactors. These oxidation devices play a vital role in the wastewater treatment process, effectively reducing pollutant concentrations and improving effluent quality.

[0003] The sewage photoelectrocatalytic ultraviolet lamp is powered by mains electricity that passes through a rectifier to generate a high-frequency current to light the UV lamp. The conventional configuration of this structure in the field of industrial explosion protection is to place the rectifier in a centralized cabinet in the power distribution room and then transmit power to the UV lamp through a cable. The increased distance makes the high-frequency current transmission difficult and increases the rectifier power, resulting in major defects in its use.

[0004] Patent publication number CN118108357A discloses an intelligent, integrated domestic sewage treatment device and process. This device and method utilize a variety of novel operating condition and water quality monitoring instruments to establish a comprehensive remote control platform for the sewage resource treatment system. The UV lamps in this device utilize rectifiers, which are also configured using conventional methods. This leads to problems such as poor high-frequency current transmission and increased rectifier power. Utility Model Content

[0005] The purpose of this utility model is to provide a rectifier protection structure for oxidation equipment to solve the following technical problems raised in the background technology:

[0006] The conventional configuration method in the field of industrial explosion protection is to place the rectifier in the centralized cabinet of the distribution room and then transmit power to the ultraviolet lamp through cables. The increased distance makes the high-frequency current transmission difficult and increases the rectifier power, which has major defects in use.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A rectifier protection structure for oxidation equipment includes an explosion-proof box and a terminal block; wherein the explosion-proof box includes a horizontal beam, a vertical beam, a box door, and a bottom plate;

[0009] The horizontal beams are arranged horizontally, and the vertical beams are arranged vertically. The horizontal beams and the vertical beams are fixedly connected to each other to form a square frame structure. The box door is arranged on the front side of the frame structure and is hinged to the vertical beam on one side. The bottom plate is fixed to the rear side of the frame structure.

[0010] The terminal block is arranged on the bottom plate within the frame structure. The terminal block is provided with three-core phase lines and one-core neutral line, and the terminal block is connected to the power distribution cabinet through a cable; an exhaust nozzle is arranged at the top of the frame structure, and an inlet nozzle and an air inlet nozzle are arranged at the bottom of the frame structure. Among them, the air inlet nozzle is connected to the air inlet device through an air inlet pipe.

[0011] Further, a hinge is fixedly connected to the vertical beam on the left side of the frame structure, the box door is connected to the hinge, and the box door is hinged to the frame structure through the hinge.

[0012] Further, the bottom plate and the frame structure are connected by bolts.

[0013] Further, at most 32 rectifiers are arranged in the frame structure. The live wires of the rectifiers are rounded up and evenly divided into three groups, and at most 11 live wires are connected to each phase of the terminal block.

[0014] Further, the live wires of each group are pressed well with copper lugs and connected to the terminal block; the neutral wires of the left and right rectifiers are pressed well with copper lugs and connected to the terminal block.

[0015] Further, the rectifiers are evenly spaced on the bottom plate and distributed on both sides of the bottom plate.

[0016] Further, two exhaust nozzles are connected to the cross beam at the top of the frame structure.

[0017] Further, a muffler is connected to the end of the exhaust nozzle.

[0018] Further, four inlet nozzles are connected to the cross beam at the bottom of the frame structure, and explosion-proof hoses are arranged on the inlet nozzles.

[0019] Further, a throttle valve is connected to the air inlet nozzle.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The square frame structure of the utility model is formed by fixedly connecting cross beams and vertical beams, which greatly improves the strength and stability of the explosion-proof box. This structure can withstand external impacts and gravity, and extends the service life of the equipment. The connected box door is arranged at the front side, which is convenient for operators to open for internal inspection and maintenance. The design of the terminal block ensures the safe connection between the cable and the power distribution cabinet. The reasonably configured phase lines and neutral lines make the circuit more stable. At the same time, the rectifier can be separated from the distribution box, which is convenient to configure the rectifier near the oxidation equipment and maintain the smooth transmission of current. The exhaust nozzle at the top of the frame can timely discharge the hot air generated inside the equipment, preventing the temperature inside the explosion-proof box from being too high. The air inlet nozzle designed at the bottom is connected to the air inlet device, which can provide fresh air, ensure a suitable internal environment, and improve the heat dissipation effect of the equipment. Description of the Drawings

[0022] Figure 1This is the front view of the present utility model;

[0023] Figure 2 This is the top view of the present utility model;

[0024] Figure 3 This is the wiring schematic diagram of the rectifier of the present utility model;

[0025] Figure 4 This is the internal structure schematic diagram of the present utility model.

[0026] Markings in the figure: 1 - box door, 2 - hinge, 3 - exhaust nozzle, 4 - cross beam, 5 - frame structure, 6 - vertical beam, 7 - intake nozzle, 8 - inlet nozzle, 9 - bottom plate, 10 - wiring board, 11 - rectifier. Specific embodiments

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

[0028] Embodiment:

[0029] An oxidation equipment rectifier protection structure, as Figure 1 shown, includes an explosion-proof box and a wiring row 10; wherein, the explosion-proof box includes a cross beam 4, a vertical beam 6, a box door 1 and a bottom plate 9; the rectifier 11 is arranged inside the explosion-proof box, and the ultraviolet lamp tube is connected to the rectifier 11.

[0030] As Figure 1 shown, the cross beam 4 is arranged horizontally, the vertical beam 6 is arranged vertically, the cross beam 4 and the vertical beam 6 are fixedly connected to form a square frame structure 5; the frame structure 5 can improve the strength and stability of the explosion-proof box. The box door 1 is arranged on the front side of the frame structure 5 and is hinged to one side of the vertical beam 6, and the bottom plate 9 is fixedly connected to the rear side of the frame structure 5. The hinged box door 1 is convenient to open and close, and allows the internal rectifier 11 to be maintained and inspected.

[0031] As Figure 3 and Figure 4As shown, the terminal block 10 is arranged on the bottom plate 9 within the frame structure 5. The terminal block 10 is provided with three-phase phase lines and one neutral line, and the terminal block 10 is connected to the power distribution cabinet through a cable; an exhaust nozzle 3 is arranged at the top of the frame structure 5, and an inlet nozzle 8 and an air intake nozzle 7 are arranged at the bottom of the frame structure 5. Among them, the air intake nozzle 7 is connected to the air intake device through an air inlet pipe. The design of the terminal block 10 ensures the safe connection between the cable and the power distribution cabinet. The reasonably configured phase lines and neutral line make the circuit more stable. At the same time, the rectifier 11 can be separated from the distribution box, which is convenient to configure the rectifier 11 near the oxidation equipment and maintain the smooth transmission of current. The exhaust nozzle 3 located at the top of the frame helps to discharge the internal hot air and harmful gases, preventing internal overheating or the accumulation of dangerous gases. The inlet nozzle 8 designed at the bottom is used for the cable to enter the box body, while the air intake nozzle 7 is connected to the air intake device through an air inlet pipe to provide fresh air and ensure the equipment operates under safe conditions. The air intake device is used to supply air into the explosion-proof box. Specifically, the air intake device includes an air intake fan and an air intake pipe, and the air intake fan is connected to the explosion-proof box through the air intake pipe. The air intake fan introduces the fresh air from the outside into the explosion-proof box through the air intake pipe, thereby cooling the explosion-proof box.

[0032] In a preferred embodiment, as Figure 1 shown, a hinge 2 is fixedly connected to the vertical beam 6 on the left side of the frame structure 5. The cabinet door 1 is connected to the hinge 2, and the cabinet door 1 is hinged to the frame structure 5 through the hinge 2. The design of the hinge 2 enables the cabinet door 1 not to occupy too much space when it is opened, improving the convenience of inspection, maintenance or troubleshooting. The reasonably installed hinge 2 ensures good sealing between the cabinet door 1 and the frame, preventing dust and sundries from entering the box, thereby optimizing the internal environment and protecting the rectifier 11 and other electronic devices. Supported by the hinge 2, the cabinet door 1 can be firmly closed to prevent external environment from interfering with the internal equipment.

[0033] In a preferred embodiment, the bottom plate 9 and the frame structure 5 are connected by bolts. Using bolt connection, the installation and disassembly of the bottom plate 9 are relatively simple, which is convenient for the maintenance and replacement of the bottom plate 9. At the same time, using bolt connection can ensure the stability of the connection and reduce the safety hazards caused by the loosening of the bottom plate 9 and the frame.

[0034] In a preferred embodiment, the frame structure 5 is provided with at most 32 rectifiers 11. The live wires of the rectifiers 11 are rounded up and evenly divided into three groups. Each phase of the wiring row 10 is connected to at most 11 live wires. Dividing the live wires of the rectifiers 11 into three groups can effectively achieve the balanced distribution of the current load, reduce the burden on a single group of live wires, and reduce the risk of possible overheating or equipment damage, thereby extending the service life of the rectifiers 11. The design of connecting at most 11 live wires to each phase makes the wiring process more standardized, reduces problems such as short circuits or poor contacts that may be caused by messy wiring, and helps improve the overall efficiency and reliability of the system. Through reasonable grouping and wiring arrangements, the risks of short circuits and overloads can be reduced, ensuring the stable operation of the system during operation.

[0035] In a preferred embodiment, the live wires of each group are crimped with copper lugs and connected to the wiring row 10; the neutral wires of the left and right rectifiers 11 are crimped with copper lugs and connected to the wiring row 10. The use of copper lugs ensures a tight connection between the live wires and the neutral wires and the wiring row 10, reduces poor contacts caused by factors such as vibration or thermal expansion, and thus reduces the risk of electrical faults. Under high-load conditions, the copper lug connection helps evenly disperse the load, avoid single-point overload, and thus ensure the stable operation of the equipment and extend its service life.

[0036] In a preferred embodiment, as Figure 4 shown, the rectifiers 11 are evenly spaced and distributed on both sides of the bottom plate 9. The evenly distributed rectifiers 11 are conducive to the air circulation inside the explosion-proof box, thereby improving the heat dissipation effect.

[0037] In a preferred embodiment, as Figure 2 shown, two exhaust nozzles 3 are connected to the cross beam 4 at the top of the frame structure 5. The setting of the exhaust nozzles 3 enables hot air to be quickly discharged, prevents hot air from accumulating inside the equipment, ensures the normal operation of the system, and avoids damage or failures caused by the retention of hot air. A good exhaust design helps maintain the optimal working temperature and air flow conditions of the equipment, thereby improving the overall operating efficiency of the system and reducing energy loss.

[0038] In a preferred embodiment, a muffler is connected to the end of the exhaust nozzle 3. The setting of the muffler can reduce the noise generated during exhaust gas emission and improve the quietness of the equipment.

[0039] In a preferred embodiment, as Figure 1As shown, four inlet nozzles 8 are connected to the crossbeam 4 at the bottom of the frame structure 5. The inlet nozzles 8 are provided with explosion-proof hoses. The design of the inlet nozzles 8 enables power and other lines to safely enter and exit the equipment, preventing damage to the lines caused by external pressure or impact, thereby maintaining the normal operation of the equipment. The explosion-proof hoses have good wear and corrosion resistance characteristics, enabling the equipment to operate stably in various harsh environments and extending its service life. The good protection design ensures the stability and reliability of the power lines, avoiding the shutdown of the overall system caused by line failures and improving the working efficiency of the equipment.

[0040] In a preferred embodiment, the air inlet nozzle 7 is connected with a throttle valve. The throttle valve can flexibly adjust the opening degree of the air inlet nozzle 7, thereby precisely controlling the gas flow rate. This enables the equipment to automatically adjust the gas supply according to different working conditions and requirements, improving the flexibility of the system operation. By adjusting the gas inflow, the throttle valve can effectively maintain the pressure stability inside the system, avoiding the adverse effects caused by air pressure fluctuations on the equipment operation and ensuring the stability and safety of the equipment. When the system load changes, the throttle valve can respond quickly and timely adjust the gas inflow, improving the adaptability and response speed of the system to load changes and making the operation more flexible and precise.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. are based on the orientation or positional relationships shown in the 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 should not be construed as a limitation to the present invention.

[0042] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "set", "connected", "fixed", "swivelly connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective structure for a rectifier of an oxidation device, characterized in that: It includes an explosion-proof box and a terminal block (10); among them, the explosion-proof box includes a cross beam (4), a vertical beam (6), a box door (1) and a bottom plate (9); The cross beam (4) is arranged horizontally, the vertical beam (6) is arranged vertically, the cross beam (4) and the vertical beam (6) are fixedly connected to form a square frame structure (5); the box door (1) is arranged on the front side of the frame structure (5) and is hinged to one side of the vertical beam (6), and the bottom plate (9) is fixedly connected to the rear side of the frame structure (5); The terminal block (10) is arranged on the bottom plate (9) inside the frame structure (5). The terminal block (10) is provided with three-core phase lines and one-core neutral line. The terminal block (10) is connected to the power distribution cabinet through a cable; an exhaust nozzle (3) is arranged at the top of the frame structure (5), and an inlet nozzle (8) and an air inlet nozzle (7) are arranged at the bottom of the frame structure (5). Among them, the air inlet nozzle (7) is connected to an air inlet device through an air inlet pipe; the air inlet device includes an air inlet fan and an air inlet pipe, and the air inlet fan is connected to the explosion-proof box through the air inlet pipe.

2. The protective structure of a rectifier for an oxidation device according to claim 1, characterized in that: A hinge (2) is fixedly connected to the vertical beam (6) on the left side of the frame structure (5), the box door (1) is connected to the hinge (2), and the box door (1) is hinged to the frame structure (5) through the hinge (2).

3. The protective structure of a rectifier for an oxidation device according to claim 1, characterized in that: The bottom plate (9) and the frame structure (5) are connected by bolts.

4. The protection structure of a rectifier for an oxidation device according to claim 1, characterized in that: At most 32 rectifiers (11) are arranged in the frame structure (5). The live wires of the rectifiers (11) are rounded up and evenly divided into three groups, and at most 11 live wires are connected to each phase of the terminal block (10).

5. The protective structure of a rectifier for an oxidation device according to claim 4, characterized in that: The live wires of each group are pressed with copper lugs and connected to the terminal block (10); the neutral wires of the left and right rectifiers (11) are pressed with copper lugs and connected to the terminal block (10).

6. The protective structure of a rectifier for an oxidation device according to claim 4, characterized in that: The rectifiers (11) are evenly spaced on the bottom plate (9) and distributed on both sides of the bottom plate (9).

7. The protective structure of a rectifier for an oxidation device according to claim 1, characterized in that: Two exhaust nozzles (3) are connected to the cross beam (4) at the top of the frame structure (5).

8. The protection structure of a rectifier for an oxidation device according to claim 1, characterized in that: A muffler is connected to the end of the exhaust nozzle (3).

9. The protection structure of a rectifier for an oxidation device according to claim 1, characterized in that: Four inlet nozzles (8) are connected to the cross beam (4) at the bottom of the frame structure (5), and explosion-proof hoses are arranged on the inlet nozzles (8).

10. The protection structure of a rectifier for an oxidation device according to claim 1, characterized in that: A throttle valve is connected to the air inlet nozzle (7).

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