Explosion-proof and intrinsic safety type operation box for pump station

Abstract

The utility model discloses an explosion-proof and intrinsic safety type operation box 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 a swan core board and a power module are arranged in the explosion-proof shell; an on-off input and output module connected with the swan core board, a WiFi module connected with the on-off input and output module and an audio output module are arranged in the intrinsic safety shell, and a communication port is integrated on the on-off input and output module; 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 and an NFC electronic tag. According to the explosion-proof and intrinsic safety type operation box for the pump station, wireless and wired dual-bus redundancy is arranged, and a red-mine ecosystem is matched, so that interconnection with a control master station and a substation 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 operation box for a pumping station. Background Art

[0002] The explosion-proof and intrinsically safe operation box for a pumping station is used in the control system of a coal mine underground pumping station, and is mainly directly used for remotely controlling the start and stop operations of a spray pump, an emulsion pump and a liquid tank in the pumping station. The existing operation boxes have the following deficiencies:

[0003] 1) The communication method is single. When any operation box or controller in the bus fails, the communication of the whole system will be interrupted, and the reliability is not high enough;

[0004] 2) The pumping station belongs to a high-frequency vibration area. The existing operation boxes have weak anti-vibration ability, and the accessories inside the operation boxes are easily damaged;

[0005] 3) Using a PLC as the control core unit, the PLC can only be installed inside the explosion-proof shell, and the volume of the explosion-proof cavity cannot be made small. The product is heavy in volume. Especially in a high-frequency vibration area, the operation box with the existing PLC as the control unit is prone to high-frequency vibration and damage to the internal electronic components;

[0006] 4) There is no MineHong system and it cannot be connected to the existing MineHong ecosystem of coal mines. Content of the Utility Model

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

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

[0009] An explosion-proof and intrinsically safe operation box 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. A quick-connect cable connector is arranged at the bottom of the explosion-proof shell; a metal cable outlet is arranged at the bottom of the intrinsically safe shell; a HarmonyOS core board and a power module are arranged inside the explosion-proof shell; a digital input / output module connected to the HarmonyOS core board, a WiFi module connected to the digital input / output module, and an audio output module are arranged inside the intrinsically safe shell. Among them,

[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 digital input / output module; a communication port that supports the CAN protocol; an audio port that is connected to the audio output module; a power port that is connected to the power module;

[0011] The overall control master station housing also includes an operation unit and an NFC electronic tag.

[0012] Preferably, the overall dimensions of the flameproof housing and the intrinsically safe housing are 59 cm in length and 23 cm in width.

[0013] Preferably, the quick-connect cable connector includes a type A1 or type A3 quick-connect rectangular connector.

[0014] Preferably, the mine Hong ecosystem is carried on the memory.

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

[0016] Preferably, the HarmonyOS core board is fixed inside the flameproof housing through a buffer bracket; the digital input / output module and the WiFi module are both fixed inside the intrinsically safe housing through buffer brackets.

[0017] Preferably, the communication port supports the RS485 protocol.

[0018] Preferably, the wireless communication of the WiFi module can be replaced by one or more of the wireless communications of the ZigBee protocol, 3G protocol, and 4G protocol.

[0019] Preferably, the power module is an intrinsically safe 12V power supply or a non-intrinsically safe 18V power supply.

[0020] Preferably, switch doors are provided on one side of the flameproof housing and one side of the intrinsically safe housing.

[0021] Compared with the prior art, the beneficial effects of the technical solution of the present utility model are:

[0022] The present utility model provides an explosion-proof and intrinsically safe operation box for a pumping station, which has the following advantages:

[0023] 1) The operation box goes deep into the mine to directly collect and control the data of the pumping station. Its signal output has WiFi+CAN dual-bus redundancy or WiFi+RS485 dual lines, which is convenient for wired and wireless data interconnection with the control master station and control sub-stations for data exchange. Compared with the single wired communication between the master station and each sub-station and the pilot operation box, through the AP networking function, users can set the AP format according to the underground use requirements to realize wireless data upload between the operation box and the sub-station and the master station, without worrying about communication interruption caused by wire breakage;

[0024] 2) The corresponding electronic components are isolated by an explosion-proof box to prevent external explosion; the intrinsically safe box is used to limit energy to prevent explosion, making the pilot pumping station operation box safer;

[0025] 3) Using the HarmonyOS core board as the main controller to replace the PLC can make the operation box smaller. There is no need to support a variety of explosion-proof and intrinsically safe signal conversion devices for intrinsically safe and non-intrinsically safe use. 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 underground substations and the control master station for data sharing and exchange. Through the standard protocol framework, compared with the original mine pumping station system, a set of standards for coal mine Internet of Everything and data can be formed, and various protocol data annotations can be summarized. 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.;

[0026] 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 data information of the current operation box and the current state of the pumping station control system, and users can quickly operate the equipment to improve the maintenance management efficiency;

[0027] 5) It has an audio output function. Multiple operation boxes for controlling the front-end pumping stations can be set along the line. When the pumping station at this location starts, stops, or alarms, it alarms along the line through the audio output function. At the same time, the master station and each substation can also collect information. The master station will send out 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; BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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 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 be obtained based on these drawings.

[0029] Figure 1 It is a front view internal structure schematic diagram of the present invention;

[0030] Figure 2 It is a three-dimensional structure schematic diagram of the present invention;

[0031] Figure 3 It is a front view structure schematic diagram of the present invention;

[0032] Figure 4 It is a side view structure schematic diagram of the present invention;

[0033] Figure 5 It is a structure schematic diagram of the mine system control master station, control substation, and pilot operation box of the present invention;

[0034] Figure 6 This is a schematic diagram of the internal electronic component connection structure of the present utility model.

[0035] Explanation of the markings in the figure: 1. Flameproof enclosure; 2. Intrinsic safety enclosure; 3. HarmonyOS core board; 4. Digital input / output module; 5. Power module; 6. WiFi module; 7. Audio output module; 8. Metal cable outlet; 9. Through-chamber terminal; 10. Quick-connect cable connector; 11. NFC electronic tag; 12. Operation unit. Specific embodiments

[0036] 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 accompanying drawings and specific preferred embodiments.

[0037] 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 accompanying drawings. It 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 the components, so they cannot be understood as limitations to the present utility model. The specific dimensions used 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.

[0038] Unless otherwise clearly specified and defined, 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.

[0039] Embodiment 1:

[0040] Please refer to Figure 1-6 , this application provides a flameproof and intrinsically safe operation box for a pumping station, including a flameproof enclosure 1 and an intrinsically safe enclosure 2 provided on one side of the flameproof enclosure 1. One end of the flameproof enclosure 1 is connected to one end of the intrinsically safe enclosure 2 to form the overall operation box enclosure.

[0041] More specifically, the flameproof 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.

[0042] A quick - plug cable connector 10 is provided at the bottom of the flame - proof enclosure 1; a metal cable outlet nozzle 8 is provided at the bottom of the intrinsically - safe enclosure 2.

[0043] More specifically, the quick - plug cable connector 10 includes a type - A1 or type - A3 quick - plug rectangular connector.

[0044] To solve the problem that when the pilot operation box of the existing pumping station communicates with the pumping station, the main station and the sub - stations, the communication method is single. When any operation box or controller in the bus fails, the communication of the whole system will be interrupted and the reliability is not high. As Figure 6 shown, a HarmonyOS core board 3 and a power module 5 are arranged inside the flame - proof enclosure 1; inside the intrinsically - safe enclosure 2, there are a digital input / output module 4 connected to the HarmonyOS core board 3, a WiFi module 6 connected to the digital input / output module 4, and an audio output module 7. The operation box has dual - bus redundancy of CAN + WiFi or RS485+WiFi. Both communication methods can ensure that users can set wired or wireless communication according to their needs. When using wireless communication, wireless APs can be set up for networking at each pilot operation box, each control sub - station and the main station along the underground railway. Users can set the AP format according to the underground usage requirements to realize wireless data upload of the sub - stations without worrying about communication interruption caused by disconnection.

[0045] The digital input / output module 4 is integrated with detection ports. By connecting with the detection module of the pumping station, parameters such as the temperature, liquid level, emulsion concentration, pressure of the emulsion liquid, and the temperature, liquid level, pressure of the liquid tank can be collected.

[0046] The communication ports on the digital input / output module 4 support the CAN protocol or the RS485 protocol and have independent MAC addresses.

[0047] The audio ports on the digital input / output module 4 are connected to the audio output module 7. Multiple operation boxes for controlling the front - end pumping stations can be set along the line. When the pumping station at this location starts up, shuts down, or alarms, it alarms along the line through the audio output function. At the same time, the main station and each sub - station can also collect information. The main station will send out 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.

[0048] The power ports on the digital input / output module 4 are connected to the power module 5. The power module 5 is an intrinsically - safe 12V power supply or a non - intrinsically - safe 18V power supply.

[0049] In order to solve the problem of large control box size when the existing mine underground pump station control substation adopts PLC as the main control unit, this 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 59cm in length and 23cm in width. Compared with the existing mine underground pump station pilot operation 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.

[0050] More specifically, the Hongmeng ecosystem on the memory is equipped with a mining ecosystem, and data is exchanged between the Hongmeng core board 3 of the pump station operation box and the switch input and output module 4, which can effectively process and collect underground pump station data and control the pump station. The use of the 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 Things and lay a solid foundation for the intelligent construction of coal mines.

[0051] The overall shell of the control main station also includes an operating unit 12 and an NFC electronic tag 11. The NFC electronic tag 11 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 pump station controlled by the operation box in real time and operate the pump station equipment, such as communication status, loading status, unloading status, power status, emergency stop status, etc.

[0052] More specifically, the WiFi module 6 includes a WiFi6 control mainboard and a communication conversion module. A WiFi antenna interface connected to the WiFi6 control mainboard is provided on the outside of the intrinsically safe housing 2. The WiFi6 antenna is led out through the WiFi6 antenna port on the intrinsically safe cavity housing, allowing the operation box to exchange wireless data with the main station and branch station.

[0053] More specifically, the Hongmeng core board 3 is fixed inside the explosion-proof casing 1 through a buffer bracket; the switch input and output module 4 and the WiFi module 6 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 operating box.

[0054] More specifically, wireless communication includes but is not limited to WiFi6 protocol, ZigBee protocol, 3G protocol, and 4G protocol.

[0055] More specifically, Figure 2 and Figure 3As shown in the figure, the operation unit 12 includes 14 groups of knob switches, with 28 state control functions. The controllable states include remote control and forced start of 2 groups of milk increasing, remote control and forced start of 4 groups of emulsifying pumps, remote control and forced start of 2 groups of additional spraying, remote control and forced start of 3 groups of spraying pumps, and remote control and forced start of 3 groups of spares.

[0056] More specifically, switch doors are provided on one side of the explosion-proof enclosure 1 and one side of the intrinsically safe enclosure 2. The switch doors are not opened during use to ensure the internal airtightness.

[0057] The explosion-proof and intrinsically safe operation box for the pumping station provided by this application can work in a complete set. It can be used to remotely start and stop the pumping station in the coal mine after being matched with other controllers, avoiding personnel from operating the start and stop of the pumping station on the pumping station equipment, providing personal safety for the operators, and improving the efficiency of workers through synchronous remote control; it is equipped with wired and wireless communication modes, eliminating the complicated wiring problems between the underground control box and the pumping station, and avoiding communication interruption caused by a single communication line break.

[0058] As Figure 5 shown in the figure, the pilot operation box of the pumping station is mainly directly connected to the pumping station underground, and can control the start and stop of the pumping station and monitor various data of the pumping station. For a complete set of operation boxes, such as seven-pump three-box and five-pump three-box, parameters such as the temperature, liquid level, emulsification concentration, pressure of the emulsion liquid in the pumping station, and the temperature, liquid level, pressure of the liquid tank can be uploaded to the substation through wireless communication. The data acquisition module of the substation can share data with the data acquisition module of the main station. Or the user 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, the pumping station system APP can be unlocked and entered. The user can obtain the real-time information of the pumping station currently controlled by the current operation box in real time.

[0059] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting 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 list 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 operation box 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). One end of the explosion-proof enclosure (1) is connected to one end of the intrinsically safe enclosure (2) to form the overall operation box enclosure; a quick-insert cable connector (10) is arranged at the bottom of the explosion-proof enclosure (1); a metal outgoing cable nozzle (8) is arranged at the bottom of the intrinsically safe enclosure (2); a HarmonyOS core board (3) and a power module (5) are arranged inside the explosion-proof enclosure (1); an on-off quantity input / output module (4) connected to the HarmonyOS core board (3), a WiFi module (6) connected to the on-off quantity input / output module (4), and an audio output module (7) are arranged inside the intrinsically safe enclosure (2). Among them, the HarmonyOS core board (3) includes at least one processor for executing commands and a memory storing a main control system; the on-off quantity input / output module (4) is integrated with a detection port; a communication port that supports the CAN protocol; an audio port connected to the audio output module (7); and a power port connected to the power module (5). The overall operation box enclosure further includes an operation unit (12) and an NFC electronic tag (11).

2. The flameproof and intrinsically safe operation box for pump stations according to claim 1, characterized in that, The overall dimensions of the explosion-proof enclosure (1) and the intrinsically safe enclosure (2) are 59 cm in length and 23 cm in width.

3. The flameproof and intrinsically safe operating box for a pumping station according to claim 1, characterized in that, The quick-insert cable connector (10) includes an A1-type or A3-type quick-insert rectangular connector.

4. The flameproof and intrinsically safe operation box for pump stations according to claim 1, wherein The mine Hong ecosystem is carried on the memory.

5. The flameproof and intrinsically safe operation box 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 interface connected to the WiFi6 control main board is arranged outside the intrinsically safe enclosure (2).

6. The flameproof and intrinsically safe operating box for a pumping station according to claim 5, characterized in that, The HarmonyOS core board (3) is fixed inside the explosion-proof enclosure (1) through a buffer bracket; both the on-off quantity input / output module (4) and the WiFi module (6) are fixed inside the intrinsically safe enclosure (2) through buffer brackets.

7. The flameproof and intrinsically safe operation box for the pumping station according to claim 1, characterized in that, The communication port supports the RS485 protocol.

8. The flameproof and intrinsically safe operation box for a pumping station according to claim 1, characterized in that, The wireless communication of the WiFi module (6) can be replaced by one or more of the wireless communications of the ZigBee protocol, 3G protocol, and 4G protocol.

9. The explosion-proof and intrinsically safe operation box for pump stations according to claim 1, wherein The power module (5) is an intrinsically safe 12V power supply or a non-intrinsically safe 18V power supply.

10. The flameproof and intrinsically safe operation box for a pumping station according to any one of claims 1-9, characterized in that, Switch doors are arranged on one side of both the explosion-proof enclosure (1) and the intrinsically safe enclosure (2).

Images