KR20240027952A - Continuous track heater mount for inspection - Google Patents

Abstract

The present invention includes a burner assembly, a boiler assembly, a water temperature sensing control device, an AC 220V commercial power unit capable of inspecting the burner assembly and the boiler assembly, an AC/DC converter, a control panel, a control instrument panel, an emergency power cutoff device, a heater fixing band, and a heater fixation. This is an installation stand for inspecting track vehicle heaters, including the installation stand, coolant tank, fuel tank, coolant pump, fuel pump, smoke filter, cooling fan, and exhaust gas fan.

Description

Mounting stand for inspecting heaters for track vehicles {CONTINUOUS TRACK HEATER MOUNT FOR INSPECTION}

The present invention relates to test equipment that can be tested and applied to the tracked vehicle heater system installed and operated on military tracked vehicles such as the K1 tank series, K9 self-propelled gun series, K200A1 armored vehicle series, and K55 self-propelled artillery series.

As military tracked vehicle equipment ages, the need to replace each component mounted on the vehicle with a new product is increasing due to an increase in the failure rate. As a result, the cost of purchasing new products is incurred, and manpower is required for accurate quality inspection, so a plan to reduce these costs is needed.

In order to solve these various problems, the military is currently implementing component maintenance by removing failed components at the division-level maintenance battalion or general maintenance unit level through unification of unit reorganization.

The present invention has developed a heater inspection installation stand so that heaters mounted on different track vehicles can be inspected and malfunction ruled out by providing the same environmental conditions as the finished vehicle. Accordingly, maintenance work can be performed more conveniently. It seeks to improve maintenance reliability, and by regenerating heater components, the need for replacement of new products can be minimized, reducing the maintenance budget and shortening maintenance time.

The present invention develops an installation stand for inspecting heaters mounted on military tracked vehicles, which not only excludes heater failures but also provides the same environmental conditions as when installed on a finished vehicle, thereby improving maintenance reliability, reducing maintenance budgets, and shortening maintenance time.

If the heater breaks down, the unit maintenance personnel removes it from the equipment and stores it in the relevant maintenance unit. The maintenance unit personnel are equipped with the same environmental conditions as when the heater is installed on the equipment, so they can more efficiently inspect and rule out malfunctions.

We provide test equipment that can be applied to each different vehicle heater system, and provide test equipment for incoming repairs that enables quality inspection and detection of faulty repair parts.

In order to solve the above problems, the present invention provides a burner assembly, a boiler assembly, a water temperature sensing control device, an AC 220V commercial power supply unit that can inspect the burner assembly and the boiler assembly, an AC/DC converter, a control panel, a control instrument panel, and an emergency power cutoff device. , heater fixing band, heater fixing installation stand, coolant tank, fuel tank, coolant pump, fuel pump, smoke filter, cooling fan, and exhaust gas fan, and maintains the same environmental conditions as the heater mounted on a tracked vehicle, a military combat vehicle. Equipped with a heater, it is possible to inspect the heater and rule out malfunctions.

In order to solve the above problems, the present invention includes converting AC power to DC power using a converter, and the control panel includes a control unit that automatically/manually controls the heater, preventing unexpected risk exposure when inspecting the heater. It includes turning off the emergency power when it occurs, and includes a tank for storing fuel, a fuel supply pump, a tank for storing coolant, and a coolant supply pump. It also includes a cooling fan that cools the fuel and coolant, and a water temperature that measures the coolant temperature in real time. Includes sensors.

In addition, the type (size and fixable bracket) of the heater mounted on each track vehicle is different, so it includes a heater housing stand and a fixing band that are integrally fixed, and each includes an inspection cable identical to the purpose of the vehicle.

In addition, it includes a smoke filtering device that can filter smoke generated when inspecting the heater.

The heater operating function installed in the completed vehicle is

Step 1): If the temperature is below 0℃, place it in preheating mode for a certain period of time on the control switch panel and then put it into operation mode. If the temperature is above 0℃, it will immediately go into operation mode.

Step 2): Input power to the control unit to operate the coolant pump and drive motor.

Step 3): The coolant pump circulates the coolant inside the engine block toward the heater, and the drive motor rotates the combustion air fan and fuel pump to supply combustion air and fuel.

Step 4): When the coolant pump and drive motor operate, power is supplied to the ignition device and fuel cutoff valve after a certain period of time.

Step 5): At this time, the fuel is sprayed in an atomized state at a pressure above a certain level from the nozzle, and a high voltage is generated in the ignition device, causing ignition by the spark of the ignition electrode.

Step 6): At the moment of ignition, the flame detector detects the flame light and short-circuits the input voltage of the ignition device.

Step 7): When the process from step 1) to step 6) is completed, ignition continues and the coolant begins to heat.

Step 8): When the coolant temperature rises to 75℃, the water temperature detection device detects this and short-circuits the fuel valve power in the control unit to stop fuel injection.

Step 9): Fuel is not injected and air is supplied for a certain period of time to burn the remaining fuel.

Step 10): When the coolant temperature drops to 65℃, the water temperature control detection device detects this, and the drive motor operates again and ignition occurs.

A test method including the above steps is provided.

The present invention is a test equipment for heater storage and repair costs, and has the same environmental conditions as when installed on the equipment, so it can dramatically reduce the national defense budget by improving maintenance reliability and maintaining it with remanufactured products by extending its lifespan.

Additionally, the present invention can inspect all heater systems attached to various types of vehicles. Accordingly, the present invention is for heater maintenance purposes and includes accurate quality inspection as well as a safety device, so maintenance can be performed more efficiently.

1 is an overall flow chart of the present invention.
Figure 2 is a flow chart of the heater inspection installation stand of the present invention.
Figure 3 shows the basic components of the heater installation stand of the present invention.
Figure 4 is a control instrument panel of the heater installation stand of the present invention.

The present invention includes a heater inspection installation stand, heater installation base basic components, and a heater installation stand control instrument panel.

The basic configuration of the installation stand for inspecting the heater of a tracked vehicle according to the present invention is as follows.

① Coolant pump: Transfers coolant stored in the coolant tank to the heater and cooling fan.

② Cooling fan: If the temperature of the coolant warmed by the heater is above 75℃, the cooling fan operates to cool the coolant.

③ Control instrument panel: Includes control modules required for various components and displays automatic mode, manual mode, etc. with LED when inspecting the heater.

④ Heater: Subject for testing purposes

⑤ Fuel tank: Stores 40 liters of diesel fuel

⑥ Coolant tank: Stores 40 liters of antifreeze

⑦ Exhaust gas fan: Forcefully discharges the exhaust fumes emitted when the heater is in operation to the outside.

⑧ Heater stand: A stand for installing different types of heaters.

⑨ Heater fixing band: Bands that secure heaters of different capacities (sizes) during inspection and operation (two left and right)

⑩ Smoke filter: Filters polluting particles when exhaust smoke is discharged to the outside through the exhaust fan.

⑪ Fuel pump: Supply fuel stored in the fuel tank to the heater.

⑫ Burner assembly: Includes a connector that transmits electrical input/output signals, a combustion device that mixes fuel and air, an ignition device, a drive motor, a fuel pump, a combustion air pressure fan, and a nozzle.

⑬ Boiler assembly: The burner assembly and electric cable are connected to detect any abnormalities in the heater.

⑭ Water temperature detection control device: Measures the temperature of the combustion chamber, two overheating temperature sensors, and coolant and operates the drive motor only below a certain temperature.

⑮ AC/DC converter: Converts commercial power AC220V to DC24V

16 Control panel: Controls the heaters installed on each track vehicle automatically/manually by matching electrical signals.

17 Emergency power cutoff device: Blocks all heater operations in case of emergency during automatic heater inspection.

It also includes an inspection cable that inputs/outputs electrical signals to each track vehicle and a fuel pressure gauge for inspection.

Below, the operation process of the heater installation stand control panel will be described.

Step 1] Place the heater to be inspected on the heater stand and secure the heater with the fixing band. At the connector connection, connect the inspection cable corresponding to the heater to be inspected (by equipment) and the overheating temperature switch cable. Install the coolant supply/return hose to the heater.

Step 2] Set the AC220V commercial power switch to ON. The voltage display is displayed on the voltmeter. At this time, the AC/DC converter converts AC voltage into DC voltage. When the main power switch of the DC24V power supply is turned on, the voltage is displayed on the voltmeter and the current is displayed on the ammeter at the same time. Press the LED on/off button on the manual operation switch to check whether the LED on the control instrument panel operates.

Step 3] When the automatic switch is placed in the DC 24V power supply, green LED 1, the main power light, is turned on by the main power relay contact, and the (+) power passing through the 15A fuse is input to the control unit (F) terminal, motor drive relay, and power standby state. .

Step 4] The operation method when automatically switching the heater is as follows. In cases below 0℃, turning on the preheating switch preheats the heater nozzle and when preheating is complete, the preheating light (LED3) turns on. After turning off the preheating switch, turn on the operation switch to activate the temperature switch, delay circuit, and low voltage circuit in the heater. At the same time, LED2, the heater operation light, turns on, the coolant circulation pump and heater motor operate sequentially, and ignition occurs at the same time as LED8 turns on. At this time, turn on the exhaust gas fan switch and the smoke filter switch.

Step 5] LED4 is a battery operation light that turns on after operation, LED5 is a coolant circulation pump operation light, and LED6 is a flame detector that detects a flame and lights up when ignition occurs. The voltage is displaced depending on the size of the flame, and the brightness of the LED light fluctuates slightly.

Step 6] LED7 turns off when the coolant temperature reaches 75℃ due to detection by the coolant temperature control sensor. Additionally, the control unit short-circuits the solenoid valve power supply to stop fuel injection. A melody is played through the speaker so that the inspector can recognize this.

Step 7] When the coolant temperature drops to 65℃, it is detected by the temperature control sensor, the drive motor operates again, and when ignition is established, LED7 lights up.

Step 8] When the operation switch is turned OFF, the ignition stops and only the motor operates to cool the inside of the heater. When the overheating temperature detector operates, the power through terminal A of the connector connection is cut off and LED9 turns off. Temperature control detector and overheating temperature detector are bimetallic and turn on and off depending on temperature. In this way, when inspecting an automatically controlled heater, it is possible to inspect individual items and the control unit inside the heater by turning the LED on and off.

Step 9] If an emergency situation such as coolant leak or fuel leak occurs during automatic heater inspection, operate the emergency cutoff switch to cut off all power.

The flow chart can be organized with reference to Figure 2. The heater control instrument panel and control unit are interconnected with electrical signals. It is supplied from the coolant tank to the heater through the pump and cooling fan, and the heated coolant returns to the coolant tank. When the coolant temperature reaches 75℃, the cooling fan automatically starts to cool the coolant and circulates repeatedly.

Below we will explain how to detect and inspect malfunctions when manually controlling the heater.

In this case, the control unit or internal parts of the heater have failed.

Step 1] Place the heater to be inspected on the heater stand and secure the heater with the fixing band. Connect the inspection cable corresponding to the heater to be inspected and the overheating temperature switch cable.

Step 2] Set the AC220V commercial power switch to ON. The voltage display is displayed on the voltmeter. At this time, the AC/DC converter converts AC voltage into DC voltage.

Step 3] When the manual switch is placed in the DC24V power supply, (+) power is input to each heater unit S/W through the test point A terminal. When the preheating switch is turned on, the heater nozzle is preheated, and when preheating is completed, LED10, which is a preheating light, turns on. Lights up.

Step 4] Check the motor inside the heater. When the motor switch on the control panel is turned on, the motor operates through the B terminal. It is possible to check whether the motor is running and check through rotation noise.

Step 5] Check the igniter inside the heater. When the ignition switch on the control panel is turned on, the ignition is activated through the J terminal.

Step 6] Check the fuel valve inside the heater. When you turn on the fuel valve switch on the control panel, the valve opens. While performing [step 4] to step 6 above, wait for power to the E(-) terminal. If you turn on the switch in order at each stage, it ignites and operates through the D terminal (fuel valve power). At this time, turn on the exhaust gas fan switch and the smoke filter switch.

Step 7] After checking ignition, turn off the ignition switch to prevent current consumption. Next, check whether the external temperature control function of the heater is normal. When the heater is turned on and the inside of the combustion chamber reaches 75℃, the temperature control contact falls off. When you first turn on the temperature control sensor switch on the control instrument panel, LED12 lights up and turns off when it reaches 75℃. The temperature control switch can set the temperature value using a bimetal method.

Step 8] Check the flame detector inside the heater. When ignited, the flame detector detects the flame, the power is connected, and LED11 lights up. When the flame detector light on the control instrument panel is turned on, the flame detector light turns on. The voltage fluctuates depending on the size of the flame. You can use a tester to measure the voltage at the test point F terminal and E terminal.

Step 9] Check the overheating temperature switch inside the heater. When the heater is activated and the temperature exceeds 75℃, the fuel valve power must be cut off to stop fuel injection. When the above device operates, the power through the connector A terminal is cut off to turn off LED14. The overheating temperature switch is installed to be pressed on the outside of the heater. When overheating, the contact falls off and the button must be pressed manually to reset. The overheating temperature switch can set the temperature using a bimetal method.

Step 10] After checking the temperature control sensor and overheating temperature sensor, cool the heater combustion chamber. By turning off all components except the main power source and motor, external air is sucked into the heater as the motor rotates, and cooling is achieved. The cooling time is until the temperature control sensor connects the contact point, and you can check it on the control panel by turning on the temperature control sensor and turning on the motor until the temperature control sensor lights up.

Step 11] If an emergency situation such as coolant leak or fuel leak occurs during manual inspection of the heater, operate the emergency cutoff switch to cut off all power.

In this way, in the manual control heating inspection, it is possible to inspect each individual item inside the heater while excluding the control unit. When a component inside the heater broke down, it was manufactured so that a final inspection could be performed in automatic mode after repair measures were completed.

Claims (1)

Burner assembly, boiler assembly, water temperature sensing control device, AC 220V commercial power unit that can inspect the burner assembly and boiler assembly, AC/DC converter, control panel, control instrument panel, emergency power cut-off device, heater fixing band, heater fixing installation stand, coolant Includes tank, fuel tank, coolant pump, fuel pump, smoke filter, cooling fan, and exhaust gas fan.
The burner assembly includes a connector for transmitting electrical input/output signals, a combustion device for mixing fuel and air, an ignition device, a drive motor, a fuel pump, a combustion air pressure fan, and a nozzle,
It includes a boiler assembly to which the burner assembly and an electric cable are connected to detect whether there is an abnormality in the heater,
The boiler assembly includes a combustion chamber, two overheating temperature sensors, and a water temperature detection control device that measures the coolant temperature and operates the drive motor only below a certain temperature,
It includes an AC/DC converter that converts the commercial power AC220V to DC24V,
A control panel that can inspect and rule out malfunctions in various types of heaters, including the burner assembly and boiler assembly, and can automatically/manually control the heaters mounted on each track vehicle by synchronizing electrical signals in detail. Includes.
It includes a control instrument panel that can convert the coolant temperature into a digital signal and check it when the heater is in operation,
The automatic inspection of the heater includes an emergency power cut-off device that can block all heater operations in the event of an emergency.
It includes a heater fixing mount that secures the heater with two heater fixing bands,
An installation stand for inspecting a heater for a tracked vehicle including a cooling fan that cools the coolant heated when the heater is operated by circulating it through a cooling fan and a storage tank.