Electric control device for mining explosion-proof electronic injection diesel engine protection system
By integrating sensors such as water temperature sensors and speed sensors, along with components such as fuel injection solenoid valves, into the explosion-proof diesel engine, real-time monitoring and control of the diesel engine can be achieved. This solves the problem of inaccurate diesel engine temperature detection in coal mine roadways, improving safety and transportation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN KALIGE MASCH CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-26
AI Technical Summary
In coal mine tunnels, the temperature and pressure detection of explosion-proof diesel engines is not accurate enough, which makes it impossible to control them in time and easily leads to the risk of explosion.
The system employs a water temperature sensor, speed sensor, fuel injection solenoid valve, intake air temperature and pressure sensor, flow control valve, pressure sensor, and throttle position sensor connected to the main unit to monitor and control the diesel engine's operating status in real time, ensuring safety.
It improved the transportation efficiency of diesel engines, reduced nitrogen oxide emissions, and extended the service life of diesel engines.
Smart Images
Figure CN224282783U_ABST
Abstract
Description
Technical Field
[0001] This utility model discloses an electronic control device, belonging to the technical field of explosion-proof electronic fuel injection diesel engine protection system, specifically relating to an electronic control device for a mining explosion-proof electronic fuel injection diesel engine protection system. Background Technology
[0002] In the process of tunneling, mining, and transportation in coal mine roadways, various special vehicles for coal mines are required. Diesel engines, with their high power and low operating costs, are widely used in these vehicles. However, due to the presence of a large amount of explosive gas in the special production environment of coal mine roadways, if the heat generated by the diesel engine during operation exceeds the specified value, causing the temperature to rise above the ignition point of the aforementioned explosive gas, it can lead to catastrophic consequences such as an explosion in the coal mine. Therefore, the diesel engines used in coal mine production must be explosion-proof. If any of the following indicators exceed the standard during the operation of the diesel engine: exhaust temperature, engine surface temperature, cooling water temperature, water level in the washing tank, or oil pressure, the diesel engine will alarm and automatically shut down, thereby preventing damage to the diesel engine and explosions of explosive gases in the mine.
[0003] Therefore, a protection system that effectively detects the above parameters and controls the diesel engine in a timely manner is a crucial component of explosion-proof diesel engines, and its performance directly affects the safety performance of the diesel engine. Utility Model Content
[0004] Purpose of this utility model: To provide an electronic control device for the protection system of an explosion-proof electronically controlled diesel engine used in mining, thereby solving the aforementioned problems.
[0005] Technical solution: An electronic control device for the protection system of an explosion-proof electronically controlled diesel engine for mining, the electronic control device comprising: a main unit; and a water temperature sensor, a speed sensor, a fuel injection solenoid valve, an intake air temperature and pressure sensor, a flow control valve, a pressure sensor and a throttle position sensor connected to the main unit.
[0006] In a further embodiment, each of the water temperature sensor, intake air temperature and pressure sensor, pressure sensor, and throttle position sensor is provided, and each of the speed sensors is provided.
[0007] The system has six fuel injection solenoid valves, and each fuel injection solenoid valve is connected to the water temperature sensor, the intake air temperature and pressure sensor, the pressure sensor, the throttle position sensor, and the two speed sensors.
[0008] In a further embodiment, the flow control valve is connected to the fuel injection solenoid valve and the pressure sensor.
[0009] In a further embodiment, the host receives the switching contact signal from each sensor and outputs a signal to control the fuel injection solenoid valve to stop operating.
[0010] Beneficial effects: The control device of this utility model is the control unit of the explosion-proof electronically controlled diesel engine for mining. This electronic control device provides the best working state for the electronically controlled diesel engine. The electronically controlled diesel engine using this electronic control device not only greatly improves transportation efficiency, but also improves the nitrogen and oxygen emission index of the diesel engine and extends the service life of the diesel engine. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is an electrical schematic diagram of the present invention.
[0013] Reference numerals: Main unit 8, Water temperature sensor 7, Speed sensor 6, Fuel injection solenoid valve 1, Intake air temperature and pressure sensor 5, Flow control valve 3, Pressure sensor 2, Throttle position sensor 4. Detailed Implementation
[0014] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0017] An electronic control device for a protection system of an explosion-proof electronically controlled diesel engine for mining includes: a main engine 8, a water temperature sensor 7, a speed sensor 6, a fuel injection solenoid valve 1, an intake air temperature and pressure sensor 5, a flow control valve 3, a pressure sensor 2, and a throttle position sensor 4.
[0018] In one embodiment, such as Figure 1 As shown, the water temperature sensor, speed sensor, fuel injection solenoid valve, intake air temperature and pressure sensor, flow control valve, pressure sensor and throttle position sensor connected to the host are connected to the host.
[0019] In one embodiment, such as Figure 1 As shown, each of the water temperature sensor, intake air temperature and pressure sensor, pressure sensor and throttle position sensor is provided, and each of the speed sensors is provided.
[0020] The system has six fuel injection solenoid valves, and each fuel injection solenoid valve is connected to the water temperature sensor, the intake air temperature and pressure sensor, the pressure sensor, the throttle position sensor, and the two speed sensors.
[0021] In one embodiment, such as Figure 1 As shown, the flow control valve is connected to the fuel injection solenoid valve and the pressure sensor.
[0022] In one embodiment, such as Figure 1 As shown, the host receives the switch contact signal from each sensor and outputs a signal to control the fuel injection solenoid valve to stop operating.
[0023] like Figure 1 and Figure 2 As shown, the working principle of this utility model is as follows:
[0024] a) When a switch contact signal is received, the main unit outputs a signal to control the fuel injection solenoid valve to stop operating;
[0025] b) Receive the position signal from the throttle position sensor, control the working state of the fuel injection solenoid valve, and the throttle position sensor outputs a voltage signal to the main unit;
[0026] c) Receive signals from two speed sensors (crankshaft signal, camshaft signal) and control the working state of the fuel injection solenoid valve (solenoid valve action sequence);
[0027] d) Receive a pressure sensor signal (oil circuit pressure) and control the working state of the injection solenoid valve (opening and closing time of the solenoid valve) through the flow control valve;
[0028] e) Receive a signal from an intake air temperature and pressure sensor to control the working status of the fuel injection solenoid valve;
[0029] f) Receive a temperature sensor signal (cooling water temperature) and control the working status of the fuel injection solenoid valve;
[0030] g) After collecting signals from each sensor, comparing them with the host computer's firmware, the optimal operating program is output to control the operation of the fuel injection solenoid valve.
[0031] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. An electronic control device for a protection system of an explosion-proof electronically controlled diesel engine used in mining, characterized in that, The electronic control device includes: a main unit; and a water temperature sensor, a speed sensor, a fuel injection solenoid valve, an intake air temperature and pressure sensor, a flow control valve, a pressure sensor, and a throttle position sensor connected to the main unit.
2. The electronic control device for a protection system of an explosion-proof electronically controlled diesel engine for mining, as described in claim 1, is characterized in that, Each of the following sensors is provided: water temperature sensor, intake air temperature and pressure sensor, pressure sensor, and throttle position sensor; and each of the following speed sensors is provided. The system has six fuel injection solenoid valves, and each fuel injection solenoid valve is connected to the water temperature sensor, the intake air temperature and pressure sensor, the pressure sensor, the throttle position sensor, and the two speed sensors.
3. The electronic control device for a protection system of an explosion-proof electronically controlled diesel engine for mining, as described in claim 1, is characterized in that... The flow control valve is connected to the fuel injection solenoid valve and the pressure sensor.
4. The electronic control device for a protection system of an explosion-proof electronically controlled diesel engine for mining, as described in claim 1, is characterized in that... The host receives the switch contact signal from each sensor and outputs a signal to control the fuel injection solenoid valve to stop operating.