RU2078012C1 - Reservoir for storage of petroleum products - Google Patents

Abstract

FIELD: pipe line transport; operation of petroleum product pipe lines. SUBSTANCE: reservoir has housing, cover with breathing valves fitted on it, petroleum product supply pipe line, gas discharge pipe line provided with check valve connected to reservoir cover and jet pump whose inlets are connected with gas discharge pipe line and petroleum product supply pipe line; outlet of this pump is connected with auxiliary pipe line provided with blank; auxiliary pipe line is brought in communication with interior of housing by means of filling branch pipe. Reducer fitted in auxiliary pipe line between jet pump and damper is used to reduce losses due to evaporation and power requirements. Housing of reservoir is provided with air escape pipe line with air breathing valve fitted at its upper end, air receiving funnel being fitted at its lower end; air receiving funnel is located above end of filling branch pipe. EFFECT: reduced losses due to evaporation, low power requirements. 2 dwg

Description

 The invention relates to techniques for pipeline transport and can be used, first of all, in the operation of trunk oil pipelines.

 A known tank for storing petroleum products, comprising a housing, a roof and a main and additional breathing valves mounted on it and a device for reducing losses of petroleum products, consisting of a compressor and a refrigeration machine, which carry out the condensation of petroleum vapor (UK patent N 2217767, CL. E 04 H 7 / 02, 1980). Such tanks during operation require significant energy consumption to drive the compressor of the refrigeration machine.

 The closest in technical essence and the achieved result is an installation for storing oil and oil products, containing a tank, a vertical pipe (condensate collector), a gas pipeline, a pipeline for supplying oil products, an ejector, the inlet of which is connected to a gas pipeline, and the outlet through a bypass pipeline for supplying oil products with a vertical pipe, breathing valve provided for emergency situations. The vertical pipe is installed with a gap relative to the bottom of the tank, and the cross section of the section located above the maximum filling level is less than the section of the pipe located below the specified level and is a chimney. The upper part of the pipe is brought out of the tank, and the lower part with the purpose of releasing oil vapor from the liquid shell is made with teeth / ed. St. USSR N 874496, class B 65 D 88/08, 1981 /.

 A disadvantage of the known installation is a rather complex design (the presence of a condensate pipe) and the associated higher capital costs.

 The objective of the invention is to simplify the design of the tank for storing petroleum products.

 The problem is solved by the proposed reservoir for storing petroleum products, including a housing, a cover with breathing valves installed on it, a pipeline for supplying petroleum products, a gas outlet pipe with a check valve connected to the roof of the tank and a jet pump whose inlets are connected to a gas outlet pipe and a pipeline for supplying oil products and the outlet to the process pipeline with a valve communicating with the cavity of the housing by means of a filling pipe, which according to the invention eniyu provided with a gear mounted on the process piping between the jet pump and the valve, and installed in the housing the vent conduit having at its upper end breathing valve, and the lower vozduhosbornuyu funnel placed over the end of the filling nozzle.

 In FIG. 1 shows a general view of a tank for storing petroleum products; in FIG. 2 jet pump.

 The housing 1 (Fig. 1) is provided with a roof 2, on which there is a main (mechanical) 3 and additional (hydraulic) breathing valves 4. The gas exhaust pipe 5 with a check valve 6 is connected at one end to the roof 2 and the other end to the jet pump 7. One the end of the jet pump 7 is connected to the branch pipe 8, through which the oil flows from the main oil pipe 9 to the tank 1. The jet pump 7 is connected to the tank body 1 using a process pipe 10, a pressure reducer 11 and a valve 12. the container is filled with petroleum product 13 and a pair of petroleum products 14 separated by a section surface 15. A filling nozzle 16 is attached to the gate valve 12, above which there is an air collecting funnel 17 connected by an air outlet pipe 18 to an air breathing valve 19. The jet pump consists of a housing 20 (FIG. 2), a rarefaction chamber 21 and a diffuser 2, a pipe for supplying oil vapor 23, a pipe for supplying oil 24 and a pipe for discharging oil 25.

 The operation of the tank is as follows.

 The oil product from the main high pressure oil product pipeline 9 enters through the branch pipe 8 and the jet pump 7 into the tank body 1, the pressure of which is significantly lower. When the tank is filled with oil product 13, the interface 15 rises, the vapor of the oil product 14 is forced into the gas outlet pipe 5 and enters the pipe for oil vapor 23, then into the vacuum chamber 21. The oil from the pipe-outlet 8 enters the pipe 24 and into the vacuum chamber 21, where there is a suction of oil vapor. Using a diffuser 22, intensive mixing of the oil product and the vapor is carried out, which provides an increase in the degree of condensation of the oil vapor.

 Upon exiting the rarefaction chamber 21 and the diffuser 22 due to the presence of increased pressure in the process pipe 10, condensation of oil vapor occurs. The pressure reducer 11 also ensures the flow of oil into the tank 1 under an acceptable safe pressure, which usually does not exceed 1 2 atm. Air bubbles entering the reservoir along with the oil product through the filling pipe 16 are captured by an air collection funnel 17 and are discharged from the tank through an air exhaust pipe 18 with an air breathing valve 19. The removal of air eliminates its circulation in the device to reduce oil vapor and increase the efficiency of their condensation.

 To stop the injection of oil through the process pipe 10 into the tank 1, the valve 12 is closed, while the check valve 6 is activated, preventing the flow of oil into the gas pipe 5 and tank 1.

 An engine and an additional energy source are not required for the operation of a jet pump and condensation of oil vapor, since the energy of the oil pressure in the main oil pipeline, which was previously uselessly throttled when filling the tank, is used.

 The operation of the reservoir is characterized by a high degree of condensation of oil vapor and thereby reducing oil loss.

 Using the tank allows you to reduce capital and operating costs by simplifying its design.

Claims (1)

 A tank for storing petroleum products, including a housing, a roof with breathing valves installed on it, a pipeline for supplying petroleum products, a gas outlet pipe with a non-return valve connected to the roof of the tank, and a jet pump whose inlets are connected to the gas outlet and a pipeline for supplying oil products with a process pipeline with a valve communicating with the body cavity by means of a filling pipe, characterized in that it is equipped with a gearbox mounted on the process piping between the jet pump and the gate valve, and an exhaust pipe installed in the housing, having a breathing valve at its upper end and an air collection funnel at the lower end located above the end of the filling nozzle.

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