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

Abstract

The utility model discloses an explosion-proof and intrinsic safety type control master station 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, the explosion-proof shell and the intrinsic safety shell are connected through a cavity-penetrating terminal, and an explosion-proof low-voltage wiring terminal is arranged at the bottom of the explosion-proof shell; a swan-gap core board, a data acquisition module and a power supply module are arranged in the explosion-proof shell; the data acquisition module exchanges data with the swan-gap core board; a communication port is integrated on the data acquisition module and supports a CAN protocol and a TCP / IP protocol; the audio port is connected with the audio output module; the power supply port is connected with the power supply module; the whole control master station shell further comprises an operation unit, a display unit and an NFC electronic tag. The utility model provides an explosion-proof and intrinsic safety type control master station for a pump station, which is convenient to interconnect with a control substation and a pilot operation box for data exchange by arranging WiFi + CAN dual-bus redundancy and cooperating with a red-mine ecosystem.

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 master station for a pumping station. Background Art

[0002] The 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, emulsion concentration, etc. supported by spray pumps, emulsion pumps and liquid tanks. However, the current control master stations have the following deficiencies:

[0003] 1) The master station 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 large.

[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-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.

[0006] 4) The master station control system and other control systems are independent of each other, and it is impossible to achieve business collaborative linkage and data fusion, making it difficult to support the subsequent construction of intelligent mines. Summary of the Utility Model

[0007] The utility model provides an explosion-proof and intrinsically safe control master station for a pumping station to overcome the problems raised in the above background.

[0008] To solve the above technical problems, the technical solution of the utility model is as follows:

[0009] An explosion-proof and intrinsically safe control master station 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 a through-chamber terminal. The bottom of the explosion-proof shell is provided with an explosion-proof low-voltage wiring terminal; the bottom of the intrinsically safe shell is provided with a metal cable 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 an audio output module, a WiFi module and a terminal block connected to the data acquisition module. Among them,

[0010] The HarmonyOS core board includes at least one processor for executing commands and a memory storing a main control system; a communication port is integrated on the data acquisition module, and the communication port supports the CAN protocol and the TCP / IP protocol; an audio port, and the audio port is connected to an audio output module; a power port, and the power port 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 overall dimensions of the flameproof housing and the intrinsically safe housing are 69 cm in length and 45 cm in width.

[0013] Preferably, the mine Hong ecosystem is carried on the memory.

[0014] 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 housing.

[0015] Preferably, the HarmonyOS core board and the data acquisition module are fixed inside the flameproof housing through a buffer bracket; the WiFi6 control main board and the terminal block are both fixed inside the intrinsically safe housing through a buffer bracket;

[0016] Preferably, the operation unit includes a switch assembly and an intrinsically safe keyboard provided outside the intrinsically safe housing, and the switch assembly includes an emergency stop switch, a start and stop button, and a universal changeover switch.

[0017] Preferably, the display unit includes a lamp board assembly provided outside the intrinsically safe housing and an observation display panel provided outside the flameproof housing, 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.

[0018] Preferably, a switch door is provided on one side of the flameproof housing and one side of the intrinsically safe housing.

[0019] Compared with the prior art, the beneficial effects of the technical solution of the present utility model are:

[0020] The present utility model provides an explosion-proof and intrinsically safe control master station for a pumping station, having the following advantages:

[0021] 1) The signal output has dual-bus redundancy of WiFi + CAN, which is convenient for interconnecting with control sub-stations and pilot operation boxes for data exchange. At the same time, it can collect data from the pilot control box and sub-stations and control the pumping station. Compared with using wired communication solely between the master station and each sub-station and pilot operation box, the master station has a wireless AP networking function. 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 wire breakage.

[0022] 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 master station safer.

[0023] 3) Use the HarmonyOS core board as the main controller to replace the PLC. This can make the control master station smaller, eliminating the need for a variety of explosion-proof and intrinsically safe signal conversion devices for both intrinsically safe and non-intrinsically safe applications. At the same time, the energy consumption is lower, reducing costs. The HarmonyOS core board, as the main controller, works with the MineHong ecosystem, connecting to multiple underground sub-stations and the pilot control box 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 in coal mines, aggregating various protocol data annotations. At the same time, coal mine equipment enterprises can also use the MineHong ecosystem to more conveniently achieve intelligent upgrades, device synchronization and collaboration, data interconnection, intelligent development, application publishing, etc.

[0024] 4) It has 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 master station and the current status of the pumping station control system, and quickly operate the equipment, improving the maintenance and management efficiency.

[0025] 5) It has an audio output function. When the pumping station system starts, stops, or alarms, the master station will send alarm information according to the configuration. At the same time, the audio signal can be connected to the centralized control system to achieve voice broadcast alarms along the working face and the equipment train. 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 in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also 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 3 It is a schematic front view structure diagram of the present invention;

[0030] Figure 4 It is a schematic side view structure diagram of the present invention;

[0031] Figure 5It is a schematic top-down internal structure diagram of the present utility model;

[0032] Figure 6 It is a schematic connection structure diagram of the main control station, control sub-station and pilot operation box of the mine system of the present utility model;

[0033] Figure 7 It is a schematic connection structure diagram of the internal electronic components of the present utility model.

[0034] Explanation of the markings 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. Audio output module; 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; 15. Operation unit. Specific embodiments

[0035] 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.

[0036] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by terms such as "left side", "right side", "upper part", "lower part", etc. are based on the orientation or positional relationships shown in the drawings, and are 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 the components, so they cannot be understood as limitations on 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.

[0037] 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 it can be the internal communication of two components or the interaction relationship between two components. 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 circumstances.

[0038] Embodiment 1:

[0039] As Figure 1-7As shown in the figure, the utility model provides a technical solution: an explosion-proof and intrinsically safe control master station for a pumping station, which includes an explosion-proof housing 1 and an intrinsically safe housing 2. One end of the explosion-proof housing 1 is connected to one end of the intrinsically safe housing 2 to form the overall master station housing.

[0040] Specifically, the explosion-proof housing 1 and the intrinsically safe housing 2 are connected by a through-chamber terminal 9, and the through-chamber terminal 9 can connect the electronic components inside the two housings.

[0041] Refer to Figure 1 , an explosion-proof low-voltage wiring terminal 10 is provided at the bottom of the explosion-proof housing 1, and a metal outlet nozzle 11 is provided at the bottom of the intrinsically safe housing 2, which is used to connect to each sub-station and the pilot pumping station detection terminal of the entire mine pumping station system.

[0042] 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. 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 installed inside the explosion-proof housing 1; an audio output module 7, a WiFi module 6, and a terminal block 8 connected to the data acquisition module 4 are provided inside the intrinsically safe housing 2. The data acquisition module 4 is integrated with a communication port, the communication port supports the CAN protocol and the TCP / IP protocol, and has an independent MAC address and IP address; an audio port, the audio port is connected to the audio output module 7; a power port, the power port is connected to the power module 5. The control master station has CAN communication ability and TCP / IP communication ability. At the same time, the master station also has a wireless AP networking function, allowing users to choose 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.

[0043] The control master station has an audio output function. When the pumping station system starts, stops, or alarms, the master station will send alarm information according to the configuration. At the same time, the audio signal can be connected to the centralized control system to realize voice broadcast alarm along the working face and the equipment train.

[0044] The data acquisition module 4 has 22 switch output channels, 10 switch input channels, communication ports (CAN, TCP / IP), intrinsically safe power output ports, audio ports, etc. All ports adopt an isolation design scheme, can withstand a higher-level electromagnetic group pulse interference test, and can exchange information with each sub-station and the pilot pumping station detection terminal at the same time, and collect parameters such as the temperature, liquid level, emulsion concentration, pressure of the emulsion, and the temperature, liquid level, pressure of the liquid tank.

[0045] In order to solve the problem that when the existing mine underground pump station control master station adopts 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 master station equipped with Hongmeng core board 3 can be 69cm in length and 45cm in width. Compared with the existing mine underground pump station 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.

[0046] More specifically, the Hongmeng ecosystem on the storage device enables data exchange between the Hongmeng core board 3 and the data acquisition module 4 for the pump station. At the same time, the main station can communicate data with the pilot control box and the substation, and can effectively process and collect data from the pilot control box and the substation and control the pump station. The use of the Hongmeng core board 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.

[0047] See also Figures 2-3 The control main station housing as a whole also includes an operating unit 15, 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 main station in real time and operate the equipment, such as parameter setting, sensor alarm, release, emergency stop value setting and enable control. At the same time, the user can set the parameters of the main station through the operating unit 15 on the intrinsically safe chamber, and view the status after configuration through the display unit.

[0048] Furthermore, 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 housing 2. The WIFI6 antenna is led out through the WIFI antenna port on the intrinsically safe cavity housing to realize wireless data exchange with each substation and the pilot pump station detection terminal.

[0049] Furthermore, 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.

[0050] The operating unit 15 includes a switch assembly and an intrinsically safe keyboard 16 disposed outside the intrinsically safe enclosure 2. The intrinsically safe keyboard 16 can set parameters for the master station. The switch assembly includes an emergency stop switch, start and stop buttons, and a universal changeover switch. Each switch is respectively for the emergency stop, start / stop of the device, and adjustment of remote control, local control, and locking states.

[0051] The display unit includes a lamp board assembly 14 disposed outside the intrinsically safe enclosure 2 and an observation display panel 12 disposed outside the flameproof enclosure 1. The display states of the lamp board assembly 14 include but are not limited to communication state, loading state, unloading state, power supply state, and emergency stop state.

[0052] Switch doors are provided on one side of the flameproof enclosure 1 and one side of the intrinsically safe enclosure 2. The switch doors are not opened during use to ensure the internal airtightness.

[0053] The flameproof and intrinsically safe type control master station for the pumping station provided by this application adopts the interface configuration technology to make the display screen more beautiful, and can display the start / stop state of the pumping station on the display panel 12; it is equipped with the MineHong ecosystem, and data interaction is carried out between the HarmonyOS core board 3 and the data acquisition module 4 for the pumping station. At the same time, the master station can communicate with the pilot control box and the substation, and can effectively process and collect the data of the pilot control box and the substation and control the pumping station; it supports the CAN protocol and the TCP / IP protocol, has an independent MAC address and IP address, and at the same time has wireless communication capabilities. Users can select a suitable communication method according to the underground situation to exchange data and control the terminal state with the supporting pilot box and substation.

[0054] As Figure 6 shown, the substation can be configured arbitrarily. According to the actual working conditions, it can be configured with seven pumps and three tanks, and the parameters of the temperature, liquid level, emulsion concentration, and pressure of the five pumps and three tanks of emulsion, as well as the temperature, liquid level, and pressure of the liquid tank. The data acquisition module 4 of the master station can share data with the data acquisition module 4 of the substation. The master station can automatically unload the emulsion pump, automatically proportion the emulsion, automatically control the liquid level of the liquid tank, and monitor and protect the equipment parameters such as the lubricating oil temperature, liquid level, pressure of the pumping station, liquid level of the liquid tank, and emulsion concentration. Users can also support the "touch and touch" 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, it can unlock and enter the pumping station system APP, and the user can obtain the current data information of the control master station and the real-time information of each substation and each pumping station in real time.

[0055] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. 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 implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. An explosion-proof and intrinsically safe control master station for a pumping station, characterized in that: It includes an explosion-proof enclosure (1) and an intrinsically safe enclosure (2) provided 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 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); inside the explosion-proof enclosure (1), there are 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 intrinsically safe enclosure (2), there are an audio output module (7), a WiFi module (6), and a terminal block (8) connected to the data acquisition module (4). Among them, the HarmonyOS core board (3) includes at least one processor for executing commands and a memory storing a main control system; the data acquisition module (4) is integrated with a communication port that supports the CAN protocol and the TCP / IP protocol; an audio port connected to the audio output module (7); a power port connected to the power module (5); the overall control master station enclosure further includes an operation unit (15), a display unit, and an NFC electronic tag (13).

2. The explosion-proof and intrinsically safe control master station for a pumping station according to claim 1, wherein The overall dimensions of the explosion-proof enclosure (1) and the intrinsically safe enclosure (2) are 69 cm in length and 45 cm in width.

3. The explosion-proof and intrinsically safe control main station for a pumping station according to claim 1, characterized in that The memory is equipped with a MineHong ecosystem.

4. The explosion-proof and intrinsically safe control master station 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 provided outside the intrinsically safe enclosure (2).

5. The explosion-proof and intrinsically safe control master station for a pumping station according to claim 4, characterized in that, 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.

6. The explosion-proof and intrinsically safe control master station for a pumping station according to claim 1, wherein The operation unit (15) includes a switch assembly and an intrinsically safe keyboard (16) provided outside the intrinsically safe enclosure (2). The switch assembly includes an emergency stop switch, a start and stop button, and a universal changeover switch.

7. The explosion-proof and intrinsically safe control master station for a pumping station according to claim 1, characterized in that, The display unit includes a lamp board assembly (14) provided outside the intrinsically safe enclosure (2) and an observation display panel (12) provided outside the explosion-proof enclosure (1). 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.

8. The explosion-proof and intrinsically safe control main station for a pumping station according to any one of claims 1-7, characterized in that, Switch doors are provided on one side of both the explosion-proof enclosure (1) and the intrinsically safe enclosure (2).

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