Explosion-proof and intrinsic safety type control substation for pump station

Abstract

The utility model discloses an explosion-proof and intrinsic safety type control substation for a pump station, and belongs to the technical field of control boxes. Comprising an explosion-proof shell and an intrinsic safety shell arranged on one side of the explosion-proof shell, and the explosion-proof shell and the intrinsic safety shell are connected through a cavity penetrating terminal; the data acquisition module has 8-path PT100 temperature detection, 16-path switching value output, 16-path switching value input, 4-path voltage detection and 8-path current detection; the swan core board comprises at least one processor for executing commands and a memory in which a main control system is stored; a detection port is integrated on the data acquisition module; the communication port supports a CAN (Controller Area Network) protocol and a TCP / IP (Transmission Control Protocol / Internet Protocol); a power port; the whole control master station shell further comprises an operation unit, a display unit and an NFC electronic tag. According to the explosion-proof and intrinsic safety type control substation for the pump station provided by the utility model, the WiFi + CAN dual-bus redundancy is arranged, and a red-mine ecosystem is matched, so that interconnection with a control master station and a pilot operation box is facilitated, and data exchange is carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of control boxes, and more specifically, to an explosion-proof and intrinsically safe control substation for a pumping station. Background Technique

[0002] The substation control boxes currently applied in the control systems of coal mine underground pumping stations are mainly used to control the start and stop of spray pumps, emulsion pumps and liquid tanks, and are used to collect and control data information such as temperature, liquid level, pressure, and emulsion concentration supporting the spray pumps, emulsion pumps and liquid tanks. However, the current control substations have the following deficiencies:

[0003] 1) The existing equipment is connected to the detection main station and detection terminal through a wired network. Due to the large number and mess of cables, the operation difficulty is large. Especially for the data acquisition module, it needs to comprehensively cover the sensor signals of single sets of emulsion pumps, spray pumps, water tanks, liquid tanks and other equipment and the near-control and remote-control requirements. If a disconnection occurs, it is difficult to monitor the detection terminal.

[0004] 2) Using a PLC as the main controller, the PLC needs to be installed inside the explosion-proof shell, and it is impossible to make the volume of the explosion-proof cavity small, resulting in a large product volume; at the same time, using a PLC as the main controller has high power consumption and high cost, and a variety of explosion-proof and intrinsically safe signal conversion devices for intrinsically safe and non-intrinsically safe use need to be supported.

[0005] 3) The existing pumping station control system is not equipped with the Mine Harmony operating system and cannot be connected to the existing Mine Harmony ecosystem of coal mines. Content of the Utility Model

[0006] The utility model provides an explosion-proof and intrinsically safe control substation for a pumping station to overcome the technical problems proposed in the above background.

[0007] To solve the above technical problems, the technical solution of the utility model is as follows:

[0008] An explosion-proof and intrinsically safe control substation for a pumping station includes an explosion-proof shell and an intrinsically safe shell arranged on one side of the explosion-proof shell. The explosion-proof shell and the intrinsically safe shell are connected through through-chamber terminals. The bottom of the explosion-proof shell is provided with explosion-proof low-voltage wiring terminals; the bottom of the intrinsically safe shell is provided with a metal outlet nozzle; inside the explosion-proof shell, there are a Harmony core board, a data acquisition module for data exchange with the Harmony core board, and a power module; inside the intrinsically safe shell, there are a WiFi module and a terminal block connected to the data acquisition module. Among them,

[0009] The data acquisition module has 8 channels of PT100 temperature detection, 16 channels of switch quantity output, 16 channels of switch quantity input, 4 channels of voltage detection, and 8 channels of current detection;

[0010] The HarmonyOS core board includes at least one processor for executing commands and a memory storing a main control system; a detection port is integrated on the data acquisition module; a communication port that supports the CAN protocol and the TCP / IP protocol; a power port that is connected to a power module;

[0011] The overall control master station housing further includes an operation unit, a display unit, and an NFC electronic tag.

[0012] Preferably, the detection port, communication port, and power port can withstand an electromagnetic group pulse interference peak pulse interference voltage exceeding AC3500V.

[0013] Preferably, the overall dimensions of the flameproof enclosure and the intrinsically safe enclosure are 51 cm in length and 27 cm in width.

[0014] Preferably, a Mine Harmony ecosystem is installed on the memory.

[0015] Preferably, the WiFi module includes a WiFi6 control main board and a communication conversion module, and a WiFi antenna port connected to the WiFi6 control main board is provided outside the intrinsically safe enclosure;

[0016] More preferably, the HarmonyOS core board and the data acquisition module are fixed inside the flameproof enclosure through a buffer bracket; the WiFi6 control main board and the terminal block are both fixed inside the intrinsically safe enclosure through a buffer bracket.

[0017] Preferably, the operation unit includes a switch assembly provided outside the intrinsically safe enclosure, and the switch assembly includes an emergency stop switch, a start and stop button, and a universal changeover switch.

[0018] Preferably, the display unit includes a lamp board assembly provided outside the intrinsically safe enclosure and an observation display panel provided outside the flameproof enclosure, and the display states of the lamp board assembly include but are not limited to communication state, loading state, unloading state, power state, and emergency stop state.

[0019] Preferably, a switch door is provided on one side of the flameproof enclosure and one side of the intrinsically safe enclosure.

[0020] Compared with the prior art, the beneficial effects of the technical solution of the present utility model are:

[0021] The present utility model provides an explosion-proof and intrinsically safe control substation for a pumping station, having the following advantages:

[0022] 1) The signal output has dual - bus redundancy of WiFi + CAN, facilitating data exchange with control sub - stations and detection terminals. Meanwhile, it can collect data from the pilot control box and sub - stations and control the pumping station. In particular, for equipment, it is necessary to comprehensively cover the sensor signal detection and near - control and remote - control requirements of single - set emulsion pumps, spray pumps, water tanks, liquid tanks, etc. Compared with the single wired communication between the main station and each sub - station and the pilot operation box, the main station has the function of wireless AP networking. Users can set the AP format according to the underground use requirements to achieve wireless data upload from the sub - stations, without worrying about communication interruption caused by disconnection.

[0023] 2) Use an explosion - proof box to isolate the corresponding electronic components to prevent external explosion; use an intrinsically safe box to limit energy to prevent explosion, making the control main station safer.

[0024] 3) Use the HarmonyOS core board as the main controller to replace the PLC. The control main station can be made smaller, without the need to support a variety of explosion - proof and intrinsically safe signal conversion devices for intrinsically safe and non - intrinsically safe signals. At the same time, the energy consumption is lower, which can reduce costs. The HarmonyOS core board, as the main controller, cooperates with the MineHong ecosystem to connect with multiple sub - stations and the pilot control box underground for data sharing and exchange. Through the standard protocol framework, compared with the original mine pumping station system, it can form a standard for the Internet of Things and data of all things in coal mines, and can summarize the annotation of multiple protocol data. At the same time, coal mine equipment enterprises can also use the MineHong ecosystem to more conveniently achieve intelligent upgrading, realize synchronization and collaboration between devices, data interconnection, intelligent development, application release, etc.

[0025] 4) It has the NFC function. When a mobile control unit such as a mobile phone touches the NFC electronic tag, it can unlock and enter the pumping station system APP. Users can timely obtain the current data information of the control main station and the current state of the pumping station control system, and users can quickly operate the equipment to improve the maintenance and management efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following - described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 It is a schematic internal front - view structure diagram of the present invention;

[0028] Figure 2 It is a schematic three - dimensional structure diagram of the present invention;

[0029] Figure 3This is the front view structural schematic diagram of the present utility model;

[0030] Figure 4 This is the side view internal structural schematic diagram of the present utility model;

[0031] Figure 5 This is the connection structural schematic diagram of the main control station, control sub-station and pilot operation box of the mine system of the present utility model;

[0032] Figure 6 This is the internal electronic component connection structural schematic diagram of the present utility model.

[0033] Explanation of the marks in the figure: 1. Flameproof enclosure; 2. Intrinsic safety enclosure; 3. HarmonyOS core board; 4. Data acquisition module; 5. Power module; 6. WiFi module; 7. Operation unit; 8. Terminal block; 9. Through-chamber terminal; 10. Flameproof low-voltage terminal; 11. Metal cable gland; 12. Observation and display panel; 13. NFC electronic tag; 14. Lamp board assembly. Detailed implementation manners

[0034] In order to better understand the purpose, structure and function of the present utility model, the technical solutions of the present utility model will be further described in detail below with reference to the drawings and specific preferred embodiments.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "left side", "right side", "upper part", "lower part", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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. "First", "second", etc. do not represent the importance of components, so they cannot be understood as limitations to the present utility model. The specific dimensions adopted in the embodiments are only for illustrating the technical solutions by way of example, and do not limit the protection scope of the present utility model. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0036] Unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", 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 can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0037] Embodiment 1:

[0038] Please refer to Figure 1-6, this application provides an explosion-proof and intrinsically safe control sub-station for a pumping station, which includes an explosion-proof enclosure 1 and an intrinsically safe enclosure 2. One end of the explosion-proof enclosure 1 is connected to one end of the intrinsically safe enclosure 2 to form an overall sub-station enclosure.

[0039] More specifically, the explosion-proof enclosure 1 and the intrinsically safe enclosure 2 are connected by a through-chamber terminal 9, and the through-chamber terminal 9 can connect the electronic components inside the two enclosures.

[0040] An explosion-proof low-voltage terminal 10 is provided at the bottom of the explosion-proof enclosure 1; a metal cable outlet 11 is provided at the bottom of the intrinsically safe enclosure 2, which is used to connect to the main station of the entire mine pumping station system and the pilot pumping station detection terminal.

[0041] To solve the problem that the existing mine pumping station control box is connected to the detection sub-station and the pumping station pilot detection terminal through a wired network. Due to the large number and mess of cables, the operation difficulty is great. As Figure 6 shown, this application is provided with a HarmonyOS core board 3, a data acquisition module 4 for data exchange with the HarmonyOS core board 3, and a power module 5 inside the explosion-proof enclosure 1; a WiFi module 6 and a terminal block 8 connected to the data acquisition module 4 are provided inside the intrinsically safe enclosure 2. The control main station has CAN communication ability and TCP / IP communication ability. At the same time, the main station also has a wireless AP networking function, allowing users to select the communication method according to the actual needs underground. At the same time, users can set the AP format according to the underground use requirements to realize the wireless data upload of the sub-station without worrying about communication interruption caused by disconnection.

[0042] The data acquisition module 4 is integrated with detection ports. The data acquisition module 4 has 8-channel PT100 temperature detection, 16-channel switch output, 16-channel switch input, 4-channel voltage detection, and 8-channel current detection. Among them, the voltage and current detection functions can be exchanged through software extension, and the maximum supports 12-channel current detection or 12-channel voltage detection interfaces, which can comprehensively cover the sensor signal detection and near-control and remote-control requirements of equipment such as single-unit emulsion pumps, spray pumps, water tanks, and liquid tanks.

[0043] The communication ports on the data acquisition module 4 support CAN protocol and TCP / IP protocol, and have independent MAC addresses and IP addresses.

[0044] The power supply port of the data acquisition module 4, and the power supply port is connected to the power module 5.

[0045] More specifically, all ports of the data acquisition module 4 can withstand the peak pulse interference voltage of electromagnetic group pulse interference above AC3500V, and have strong EMC anti-interference ability.

[0046] In order to solve the problem that when the existing mine underground pump station control substation uses PLC as the main control unit, the control box is large in size and needs to be equipped with a variety of explosion-proof and intrinsically safe intrinsically safe and non-safety signal conversion equipment, resulting in excessive energy consumption and cost, the present application uses Hongmeng core board 3 as the main control unit. Hongmeng core board 3 includes at least one processor for executing commands and a memory for storing the main control system. The control substation equipped with Hongmeng core board 3 can be 51cm in length and 27cm in width. Compared with the existing mine underground pump station substation control box, the size is greatly reduced, and there is no need to match a variety of explosion-proof and intrinsically safe intrinsically safe and non-safety signal conversion equipment, which can reduce energy consumption and cost.

[0047] More specifically, the Hongmeng ecosystem on the storage device enables data exchange between the Hongmeng core board 3 of the branch station and the data acquisition module 4 for the pump station. At the same time, the branch station can communicate data with the pilot pump station control box and the main station, and can effectively process and collect data from the pilot control box and control the pump station. The use of Hongmeng core board 3 to realize real-time online data collection and synchronization with equipment and system data will bring coal mines into the era of the Internet of Everything and lay a solid foundation for the intelligent construction of coal mines.

[0048] The control substation housing as a whole also includes an operating unit 7, a display unit and an NFC electronic tag 13. The NFC electronic tag 13 supports the mobile phone APP touch function. When a user approaches with a mobile terminal such as a mining mobile phone, it can unlock and enter the pump station system APP. The user can obtain the current data information of the control substation in real time and operate the equipment, such as communication status, loading status, unloading status, power status, emergency stop status, etc.

[0049] More specifically, the WiFi module 6 includes a WiFi6 control mainboard and a communication conversion module. A WiFi antenna port connected to the WiFi6 control mainboard is arranged outside the intrinsically safe shell. The WIFI6 antenna is led out through the WIFI antenna port on the intrinsically safe cavity shell, allowing the substation to exchange wireless data with the pilot pump station detection terminal and the main station.

[0050] More specifically, the Hongmeng core board 3 and the data acquisition module 4 are fixed inside the explosion-proof casing 1 through a buffer bracket; the WiFi6 control mainboard and the terminal block 8 are both fixed inside the intrinsically safe casing 2 through a buffer bracket. The buffer bracket includes a mounting plate directly connected to each mainboard, and a buffer tube arranged with the mounting plate facing the inner wall of the shell. A buffer spring is installed in the buffer tube to cope with some vibrations and protect the electronic components inside the control main station.

[0051] The operating unit 7 includes a switch assembly arranged outside the intrinsically safe housing 2, and the switch assembly includes an emergency stop switch, a start and stop button, and a universal conversion switch. Each switch is respectively for emergency stop, start / stop, and adjustment of remote control, local control, and locking status of the device.

[0052] The display unit includes a lamp board assembly 14 disposed outside the intrinsically safe housing and an observation display panel 12 disposed outside the flameproof housing. The display states of the lamp board assembly 14 include but are not limited to communication state, loading state, unloading state, power state, and emergency stop state.

[0053] One side of the flameproof housing 1 and one side of the intrinsically safe housing 2 are both provided with switch doors, which are not opened during use to ensure the internal airtightness.

[0054] The flameproof and intrinsically safe type control substation provided by this application is equipped with the MineHong ecosystem. Data interaction is carried out between the built-in HarmonyOS core board 3 and the data acquisition module 4 for the pump station. At the same time, the substation can communicate with the pilot control box and the main station, effectively process and collect the data of the pilot control box and control the pump station; it supports the CAN protocol and the TCP / IP protocol, has an independent MAC address and IP address, and also has wireless communication capabilities. Users can select appropriate communication methods according to the underground situation to exchange data and control the terminal state with the supporting pilot box and the main station.

[0055] As Figure 5 shown, the substation can effectively process and collect the data of the pump station and control the pump station. The substation can be arbitrarily configured, can work independently or in a complete set, and can be configured according to the actual working conditions for parameters such as temperature, liquid level, emulsion concentration, pressure of seven pumps and three tanks, and temperature, liquid level, pressure of five pumps and three tanks of emulsion. The data acquisition module 4 of the substation can share data with the data acquisition module 4 of the main station. Or users can also support the "touch and go" function of the mobile phone APP through the NFC electronic tag 13. When the user approaches with a mobile terminal such as a mine mobile phone, they can unlock and enter the pump station system APP, and users can obtain the current real-time data information of the control substation and the pump station it monitors in real time.

[0056] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. An explosion-proof and intrinsically safe control substation for a pumping station, characterized in that: It includes an explosion-proof enclosure (1) and an intrinsically safe enclosure (2) arranged on one side of the explosion-proof enclosure (1). The explosion-proof enclosure (1) and the intrinsically safe enclosure (2) are connected by a through-chamber terminal (9). An explosion-proof low-voltage terminal (10) is arranged at the bottom of the explosion-proof enclosure (1); a metal cable gland (11) is arranged at the bottom of the intrinsically safe enclosure (2); a HarmonyOS core board (3), a data acquisition module (4) for data exchange with the HarmonyOS core board (3), and a power module (5) are arranged inside the explosion-proof enclosure (1); a WiFi module (6) and a terminal block (8) connected to the data acquisition module (4) are arranged inside the intrinsically safe enclosure (2). Among them, the data acquisition module (4) is equipped with 8-channel PT100 temperature detection, 16-channel digital output, 16-channel digital input, 4-channel voltage detection, and 8-channel current detection; the HarmonyOS core board (3) includes at least one processor for executing commands and a memory storing a main control system; detection ports are integrated on the data acquisition module (4); communication ports that support CAN protocol and TCP / IP protocol; power ports that are connected to the power module (5); the overall control master station enclosure further includes an operation unit (7), a display unit, and an NFC electronic tag (13).

2. The explosion-proof and intrinsically safe control substation for a pumping station according to claim 1, wherein The detection ports, communication ports, and power ports can withstand an electromagnetic group pulse interference peak pulse interference voltage exceeding AC3500V.

3. The explosion-proof and intrinsically safe control substation for pumping stations according to claim 1, characterized in that, The overall dimensions of the explosion-proof enclosure (1) and the intrinsically safe enclosure (2) are 51 cm in length and 27 cm in width.

4. The explosion-proof and intrinsically safe control substation for pumping stations according to claim 1, characterized in that, The mine Hong ecosystem is carried on the memory.

5. The explosion-proof and intrinsically safe control substation for pumping stations according to claim 1, characterized in that, The WiFi module (6) includes a WiFi6 control main board and a communication conversion module. A WiFi antenna port connected to the WiFi6 control main board is arranged outside the intrinsically safe enclosure.

6. The explosion-proof and intrinsically safe control substation for pump stations according to claim 5, wherein, The HarmonyOS core board (3) and the data acquisition module (4) are fixed inside the explosion-proof enclosure (1) through buffer brackets; the WiFi6 control main board and the terminal block (8) are both fixed inside the intrinsically safe enclosure (2) through buffer brackets.

7. The explosion-proof and intrinsically safe control substation for pumping stations according to claim 1, characterized in that, The operation unit (7) includes a switch assembly arranged outside the intrinsically safe enclosure (2). The switch assembly includes an emergency stop switch, start and stop buttons, and a universal change-over switch.

8. The explosion-proof and intrinsically safe control substation for pumping stations according to claim 1, characterized in that, The display unit includes a lamp board assembly (14) arranged outside the intrinsically safe enclosure and an observation display panel (12) arranged outside the explosion-proof enclosure. The display states of the lamp board assembly (14) include but are not limited to communication state, loading state, unloading state, power state, and emergency stop state.

9. The explosion-proof and intrinsically safe control sub-station for pumping stations according to any one of claims 1-8, characterized in that, Switch doors are arranged on one side of the explosion-proof enclosure (1) and one side of the intrinsically safe enclosure (2).

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