Located in the northwestern corner of the motherland, Xinjiang lives in the center of the hinterland of the Asian continent. It is far away from the sea and surrounded by tall mountains, blocking the entry of warm and humid ocean currents and forming a dry continental climate in Xinjiang. This climate is characterized by dry, rainy and sandy weather, hot summer and cold in summer, large temperature difference between day and night. Xinjiang is located in the southwestern part of the cold high pressure and is controlled by the powerful cold high pressure of Mongolia. The northeast and northeast winds are near the ground. Xinjiang is a shallow ridge of high pressure control, polar cold air Changshun northwest airflow south, causing rapid cooling, accompanied by snowfall. Therefore, Xinjiang is cold and long in winter.
Into the winter, fire pump water pump antifreeze, has been plagued our district fire brigade a major problem, at present, our district firefighting vehicles equipped with fire pump mainly bs30 pump, low pressure pump and high pressure pump, for the home or post Pump. Usually in the pump and the suction pipe filled with water in the water, the vehicle fire extinguishing in winter or long hours of field work, such as not to water, water pumps and suction pipe inlet pipe can easily be frozen, ranging from not water, heavy then Pump body and pipe are cracked. These phenomena will bring irreparable damage to the fire and rescue forces.
The solution:
First, set the pump double circuit superheater.
The driver knows that the radiator in the engine during operation, the temperature is about 80-90 degrees, the full use of this heat, can ensure that the fire pump or pipe in a cold climate is not frozen.
installation method:
(1) First of all, a length of 15 meters, 10mm diameter copper tube bent into a spiral, slightly longer than the length of the suction pipe inlet pipe short 10-15cm.
(2) Place the spiral copper pipe into the water inlet pipe of the water suction pipe, drill a 10mm hole on both sides of the water inlet pipe of the water suction pipe, and weld the two ends of the copper pipe to the holes in the water inlet pipe of the water suction pipe Airtight), respectively, in the suction pipe on both sides of the water left a length of about 5cm joints for external recycling pipes.
(3) One end of a rubber tube about 4m in length and 10mm in inner diameter is connected to the water outlet of the heater of the fire engine, and the other end is connected to the water inlet pipe of the suction pipe.
(4) Connect a rubber hose of 4 m in length and 10 mm in inner diameter to the radiator return pipe of the fire truck and the other end to the suction pipe inlet pipe.
Experimental results:
(1) the external temperature of 2 degrees, the engine radiator 80 degrees, 70 degrees suction pipe inlet pipe, water pump pump body 45 degrees.
(2) the external temperature of -17 degrees, the engine radiator 80 degrees, suction pipe inlet pipe 60 degrees, 25 degrees outside the pump body.
Expenditure: 130m 15m copper pipe, 8m40 rubber hose, labor cost 100 yuan, total 270 yuan
Second, set the pump double loop heater
This method is relatively simple, outside the pump body in an appropriate position, the installation of a heater, the outlet aligned with the pump, the heater inlet, outlet and the engine radiator connection, the power cord and the heater cable connected to the car, Switch sharing, turn on the power switch, you can hot air blow to the fire pump water pump body. The disadvantage is: the vehicle in the process of walking, the accelerated convection, the airtightness of the toolbox, resulting in heat loss, the heating effect is not very good (parking, the effect is good.)
Expenditure: Heater 180 yuan, rubber tube 12 meters 60 yuan, total 240 yuan.
Third, set the pump heater
This method mainly uses the exhaust gas in the exhaust pipe of the engine to heat the water pump (some of the fire engines are shipped from the factory).
Installation method: (1) install a small radiator at the appropriate place in the lower part of the pump body, and also arrange the "50" thin iron pipe at the bottom of the pump in "U" shape, the air inlet is connected with the engine exhaust pipe, the exhaust port is set At the bottom of the car.
(2) Install a "three-way" on the engine exhaust pipe to set the switch for winter and summer use.
Disadvantages: the installation of airtight hole is not strict, when driving, heat loss easily, exhaust without muffler, noise, prolonged use of increased engine wear.
The antifreeze work of fire pump is related to the success of fire extinguishing and rescue work in winter. Therefore, in daily work, we should intensify the inspection and supervise the operators to do the work of maintenance and repair, and work attitude of "nuance" And work style to ensure the complete and easy use of fire-fighting vehicles so as to practice the grand image of the important thinking of the 'Three Represents', tree fire brigade civil division and mighty division with their own practical actions so as to make new contributions to the resident people.
MPCV-03W Series Direction Valves
Mpcv-03W Series Direction Valves,Superimposed Hydraulic Control Check Valve,Superimposed Directional Control Check Valve,Superimposed Direction Control Check Valve
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