Sand filter integrated electrical and gas circuit control cabinet

Abstract

The utility model relates to an integrated electric and gas circuit control cabinet for a sand filter. The technical problem that an existing control cabinet is high in failure rate is mainly solved. The integrated electrical and gas circuit control cabinet is divided into two layers by a partition plate, the upper layer is provided with an upper door for installing electrical elements, the lower layer is provided with a lower door for installing 10 gas circuit control elements, the upper door is provided with two indicating lamps, the indicating lamps are provided with waterproof covers, the lower door is provided with an observation window, and sealing strips and drainage grooves are arranged in door frames of the upper door and the lower door. The upper layer is provided with a plurality of clamping rails, the clamping rails are provided with wiring terminals and electrical elements, the side face of the upper layer cabinet body is provided with two sealing Greenland joints used for sealing laying of electrical incoming and outgoing lines, and the partition plate is also provided with sealing Greenland joints used for sealing laying of gas circuit signal lines. One air inlet valve and ten air outlet valves are installed at the bottom of the cabinet body, the air inlet valve is connected with a filtering pressure reducing valve through a pipeline, the filtering pressure reducing valve is connected with an air distribution block through a pipeline, and the ten air outlet pipelines are all provided with rotor flow meters.

Description

An integrated electrical and pneumatic control cabinet for sand filters Technical Field

[0001] This utility model relates to electrical and pneumatic control cabinets, and in particular to an integrated electrical and pneumatic control cabinet for sand filters. Background Technology

[0002] Existing cabinets used in the environmental protection industry for controlling sand filter ponds employ two methods: one is to separate the electrical and pneumatic circuits into two separate cabinets, which is not conducive to local installation and communication between them; the other is to combine the electrical cabinet and the pneumatic circuit cabinet together, but the electrical components and pneumatic components are installed in the same space. Although the pneumatic circuit has an oil-water filter, this device has a high failure rate. Once it fails, water vapor enters the space of the electrical components, causing corrosion and short circuit failures. Summary of the Invention

[0003] The purpose of this utility model is to provide an integrated electrical and pneumatic control cabinet for sand filters, which mainly solves the technical problem of high failure rate of existing control cabinets.

[0004] The technical solution of this utility model is as follows: An integrated electrical and pneumatic control cabinet for sand filters, comprising a cabinet structure divided into two layers by a partition. The upper layer houses electrical components, and the lower layer houses 10 pneumatic control components. The upper layer has an upper door, and the lower layer has a lower door. The upper door has two indicator lights with waterproof covers, and the lower door has an observation window. Sealing strips and drainage channels are installed inside the door frames of both the upper and lower doors. Multiple mounting rails are installed on the upper layer, with terminals and electrical components mounted on them. Two sealed Green's joints are installed on the side of the upper cabinet for sealing electrical incoming and outgoing lines. Sealed Green's joints are also installed on the partition for sealing pneumatic signal lines. One inlet valve and ten outlet valves are installed at the bottom of the cabinet. The inlet valve is a stainless steel shut-off valve, and the outlet valves are quick-connect ball valves. The inlet valve is connected to a filter pressure reducing valve via a pipeline, and the filter pressure reducing valve is connected to a gas distribution block via a pipeline. Each of the ten outlet pipelines is equipped with a rotor flow meter. A rain cover is installed on the top of the cabinet, and hanging lugs are provided at the upper and lower ends of the back panel of the cabinet.

[0005] The advantages of this utility model are: The cabinet has a compact structure, facilitating wall mounting and making it suitable for environments with limited space. The cabinet structure is designed with upper and lower layers, achieving physical isolation between the electrical and pneumatic circuits, avoiding the danger of operators working with live electrical circuits. Sealing strips and drainage channels are installed on the upper and lower layers to prevent moisture ingress. The lower layer's pneumatic control components are equipped with filter pressure reducing elements and a rotor flow meter to ensure stable operation of the pneumatic system. A rain cover is provided on the top of the cabinet, further enhancing its protective performance. This cabinet fulfills its original functions while achieving both electrical and pneumatic circuit isolation, yet remaining integrated, making it easy for installers to understand and operate; the compact design of the pneumatic circuit facilitates debugging and maintenance. Attached Figure Description

[0006] Figure 1 is a front view of the internal structure of this utility model.

[0007] Figure 2 is a left view of this utility model.

[0008] Figure 3 is a front view of this utility model.

[0009] Figure 4 is a bottom view of the cabinet bottom opening of this utility model.

[0010] In the diagram: 1-Upper door, 2-Lower door, 3-Waterproof cover, 4-Partition, 5-Observation window, 6-Rail, 7-Terminal, 8-Electrical component, 9-Sealed Greenland head, 10-Sealing strip and drain groove, 11-Inlet valve, 12-Outlet valve, 13-Filter pressure reducing valve, 14-Gas distribution block, 15-Rotameter, 16-Rainproof cover, 17-Lifting lug, 18-Indicator light. Detailed Implementation

[0011] Referring to Figures 1-4, the control cabinet of this utility model is divided into two layers. The upper layer has dimensions of 400 (height) x 700 (width) x 250 (depth) mm; the lower layer is equipped with 10 pneumatic control components, with dimensions of 800 (height) x 700 (width) x 250 (depth) mm; the total height of the two is 1200 mm, which is convenient for wall mounting. Specific Structure: An integrated electrical and pneumatic control cabinet for sand filters is a cabinet structure divided into two layers by a partition 4. The upper layer houses electrical components, and the lower layer houses 10 pneumatic control components. The upper layer has an upper door 1, and the lower layer has a lower door 2. The upper door has two indicator lights 18, each with a waterproof cover 3. The lower door has an observation window 5. The door frames of the upper door 1 and lower door 2 are equipped with sealing strips and drainage channels 10. The upper layer has multiple rails 6, which are fitted with wiring terminals 7 and electrical components 8. The sides of the upper cabinet are equipped with two G20 sealed Greenland joints 9 for sealing electrical incoming and outgoing lines. G20 sealed Greenland joints 9 are also installed on the partition for sealing pneumatic signal lines. The bottom of the cabinet has one inlet valve 11 and ten outlet valves 12, meeting the pneumatic control requirements of most sand filtration projects. The inlet valve 11 is a stainless steel shut-off valve, and the outlet valve 12 is a quick-connect ball valve. The inlet valve 11 is connected to the filter pressure reducing valve 13 via a pipeline, and the filter pressure reducing valve 13 is connected to the air distribution block 14 via a pipeline. All 10 outlet pipelines are equipped with rotor flow meters 15. A rain cover 16 is provided on the top of the cabinet, and lifting lugs 17 are provided at the upper and lower ends of the cabinet back panel.

[0012] This utility model features simple installation, avoidance of mutual interference and corrosion, durability, and can prevent gas circuit operators from performing dangerous operations with live electricity.

[0013] Once the cabinet is installed, it can be connected to the incoming power cable and network communication cable. Inside the cabinet, a pressure switch signal is connected to the filter pressure reducing valve 13. When the pressure is low, it outputs a switching signal, which is connected to the built-in PLC (S7-200SMART) via the sealed gland 9 on the partition. Both the inlet and outlet air can be connected to the inlet valve 11 and outlet valve 12 at the bottom of the cabinet. The outlet air volume can be adjusted using the knob on the rotor flow meter 15 to meet the air volume requirements of the sand filter. The electrical system collects signals from the equipment, including low-pressure signals, and transmits them to the plant's central control system via network cable for easy recording and operation by operators.

Claims

1. A sand filter tank integrated electrical and gas path control cabinet, which is a cabinet structure, characterized in that, Divided into two layers by a partition, the upper layer houses electrical components, and the lower layer houses 10 gas circuit control components. The upper layer has an upper door, and the lower layer has a lower door. The upper door is equipped with two indicator lights, each with a waterproof cover. The lower door has an observation window. The upper layer is equipped with multiple rails, on which are mounted wiring terminals and electrical components. The side of the upper cabinet is equipped with two sealed Greenland joints for sealing electrical incoming and outgoing lines. Sealed Greenland joints are also mounted on the partition for sealing gas circuit signal lines. At the bottom of the cabinet, there is one inlet valve and ten outlet valves. The inlet valve is connected to a filter pressure reducing valve via a pipeline, and the filter pressure reducing valve is connected to a gas distribution block via a pipeline. All ten outlet pipelines are equipped with rotor flow meters.

2. The sand filter tank integrated electrical and gas circuit control cabinet according to claim 1, characterized in that, The upper and lower door frames are equipped with sealing strips and drainage channels.

3. The sand filter tank integrated electrical and gas circuit control cabinet according to claim 1, characterized in that, The air intake valve is a stainless steel shut-off valve.

4. The integrated electrical and pneumatic control cabinet for sand filters according to claim 1, characterized in that, The vent valve is a quick-connect ball valve.

5. The integrated electrical and pneumatic control cabinet for sand filters according to claim 1, characterized in that, A rain cover is installed on the top of the cabinet.

6. The integrated electrical and pneumatic control cabinet for sand filters according to claim 1, characterized in that, Hanging lugs are provided at the upper and lower ends of the cabinet back panel.

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