RU2062741C1 - Truck tank for transportation of volatile aggressive liquids - Google Patents

Abstract

FIELD: motor transport engineering; transportation of aggressive liquids. SUBSTANCE: compartment for vapor-gas phase is located in end face portion of tank body opposite to compartment with charging pipeline and shutoff valves, compartment being separated by partition. Fitted in tank body partitions are pipeline to let pass condensate and gaseous medium from compartment for volatile aggressive liquid. Tank has safety device secured in shutoff valves compartment on pipeline for passage of gaseous medium. EFFECT: enhanced safety in transportation of aggressive liquids.

Description

 The invention relates to motor vehicles and can be used in all sectors of the economy for the transport of liquids with increased evaporation and aggressive properties in transport tanks installed on a car chassis.

 Known transport tanks intended for the transport of liquids, with a primitive filling of the internal volume with a liquid of 85% and leaving 15% of the volume for a vapor-gas medium. The complete lack of automation and control leads to violations and abuses, to accidents, especially with ice.

 Known transport tanks intended for the transport of liquids with the device of additional containers / cm. certificate of authorship 1671540, USSR, B 65 D 88/12 1991

 The well-known tank complicates the manufacture of the tank, does not automatically fill the internal volume of the tank with aggressive liquid and negligently releases at first poorly evaporated liquid into the atmosphere through the breather, then aggressive liquid. This circumstance eliminates the accident-free filling of the liquid and requires increased control.

 The aim of the present invention is to ensure guaranteed with automation of the process of full filling of the tank, eliminating evaporation losses, eliminating the possibility of static electricity and dynamic inertial loads.

 This goal is achieved by the fact that the internal volume of the tank is divided by airtight baffles into three sections — an extreme combined-cycle one with a volume of 15%; an average liquid one with a volume of 85% and an instrument compartment for installing shut-off and control devices that communicate with each other by an internal piping system to perform work; external liquid and combined-gas systems, filling the middle section with liquid, communication between the liquid and combined-gas sections for the interaction of 100% of the internal volume of the tank and bypass tsevanie paragazovyh pipelines after locking devices with the installation of the safety device in the instrument compartment.

 The tank truck consists of a casing 1, divided by airtight partitions 2 and 3 into three sections — an extreme combined-cycle gas 4 with a volume of 15% of the total 100% of the sealed volume, the middle liquid section 5, which has the remaining 85% of the sealed volume of the tank and the instrument compartment 6 for the installation of shut-off and control devices . In the lower part of the tank through the baffle 2 a pipe 7 is passed and sealed into the middle chamber 5. At the other end of the pipe 7 there is a locking device 8 connected by a fitting 9 to an external liquid system. An external steam-gas tank truck is connected with a locking device 10, a pipe 11 and a pipe-branch 12, the open end of the pipe 12 is brought to the top of their section 5. The pipe-branch 13 is connected to a blocking device 14, the pipe 15 passing through the partitions 2 and 3, sealed in places of passage, in the combined-cycle section 4. In the instrument compartment 6, a safety device 16 is installed between the pipes 11 and 12, a discharge hole and a pipe 17 connected to the pipe 15 between the partition 2 and the fermentation device 14.

 In a static position, the locking devices 8 and 10 are closed, the valve 14 is open. After connecting external systems to valves 8 and 10, valve 14 closes, valves 8 and 10 open. The liquid through the valve 8 and the pipe 7 fills the section 5 completely, displacing the gas medium through the pipe 12, the safety device 16, the valve 8 into the external combined-gas system until the liquid outlet is fixed. Gates 8 and 10 are locked, external systems are turned off and disconnected. The valve 14 opens, and both inner sections 4 and 5 interact with each other according to the principle of communicating vessels through pipes 12, 11, 13, valve 14, pipe 15 and safety device 16. In the event of an emergency situation and the interaction of sections 4 and 5 ceases to interact with each other , excessive vapor pressure through the pipe 12 acts on the safety device 16, which operates and passes the vapor-gas medium or part of the increased volume of liquid through the pipes 12, 17, 15 into the combined-gas section 4. Drain the liquid into the consumer system oizvoditsya the following sequence. External systems are connected, liquid to valve 8, combined-cycle gas to valve 10. Through the pipe 7 and the open valve 8, the pressure from the section 5 is forced out by the pressure of internal vapors into the consumer system. If necessary, through the valve 10, the pipe 11, the safety device 16 and the pipe 12, the vapor-gas medium is pumped from the external system into the upper zone of section 5. At the end of the fluid drain, valve 8 closes and vapor pressure is removed from section 4 through pipe 15, open valve 14 of pipe 13, 11 and valve 10. From section 5, pairs are removed through pipe 12, safety device 16, pipe 11, and open valve 10. After at the end of work, valves 8 and 10 are locked, valve 14 remains in the open position.

 The invention completely eliminates the emission of gas-vapor mixture into the atmosphere, eliminates the explosiveness of the surrounding space, completely eliminates the dynamic inertial loads and improves driving, especially in winter.

Claims (1)

 An automobile tank for transporting volatile aggressive liquids, including a housing mounted on the chassis with a tank for volatile aggressive liquids and a compartment with loading piping and shut-off valves installed in it, and a tank for gas-vapor phase, characterized in that the tank for gas-vapor phase is placed at the end the case, opposite the compartment with the loading pipe and valves, is separated from the tank for volatile aggressive fluid by means of an airtight partition and made in such a way that its volume is 15% of the volume of the tank for easily volatile aggressive liquids, while the tank is equipped with a safety device and pipelines installed in the body in the partitions for the passage of condensate from the tank for the vapor-gas phase and the passage of the gas medium from the tank for volatile aggressive fluid when it is filled, interconnected by means of valves, and the safety device is installed in CCEE for shut-off gate valves on the pipe for the passage of the gas medium from the container for a volatile and corrosive liquid connected to the conduit for passage of the condensate.