Flammable and explosive liquid transportation system and method and application thereof

Abstract

The present disclosure discloses a flammable and explosive liquid transportation system and a method and an application thereof. The system includes a gas inlet pipe and a liquid transportation pipeline; a first valve and a second valve are sequentially disposed on the gas inlet pipe; two ends of the liquid transportation pipeline respectively communicate with the raw material barrel and a reaction vessel, a third valve, a fifth valve, and a seventh valve are sequentially disposed on the liquid transportation pipeline; the gas inlet pipe and the liquid transportation pipeline communicate with each other, and a fourth valve is disposed on the connecting pipe; a bypass pipe is disposed on the liquid transportation pipeline, and a sixth valve is disposed on the bypass pipe. The present disclosure resolves problems of a high risk and poor environmental protection caused by an existing flammable and explosive liquid transfer manner.

Claims

1. A flammable and explosive liquid transportation system, comprising a gas inlet pipe (1) and a liquid transportation pipeline (10), wherein one end of the gas inlet pipe (1) communicates with a raw material barrel (6), the other end of the gas inlet pipe (1) communicates with an inert gas source, a first valve group is disposed on the gas inlet pipe (1), and the first valve group sequentially comprises a first valve (2) and a second valve (4) along a gas flow direction; two ends (18) of the liquid transportation pipeline (10) respectively communicate with the raw material barrel (6) and a reaction vessel (15), a second valve group is disposed on the liquid transportation pipeline (10), the second valve group sequentially comprises a third valve (7), a fifth valve (9), and a seventh valve (14), the third valve (7) is disposed near the raw material barrel (6), a one-way valve is disposed on the liquid transportation pipeline (10), the one-way valve is disposed in parallel with the fifth valve (9), and the one-way valve only allows a liquid or a gas to enter the reaction vessel (15) from the raw material barrel (6); the gas inlet pipe (1) and the liquid transportation pipeline (10) communicate with each other through a connecting pipe (5), a fourth valve (8) is disposed on the connecting pipe (5), a joint between the connecting pipe (5) and the gas inlet pipe (1) is disposed at a front end of the second valve (4), and a joint between the connecting pipe (5) and the liquid transportation pipeline (10) is disposed at a rear end of the third valve (7) when a liquid is transported from the raw material barrel (6) to the reaction vessel (15); and a bypass pipe (11) is disposed on the liquid transportation pipeline (10), one end of the bypass pipe (11) communicates with the liquid transportation pipeline (10), the other end of the bypass pipe (11) communicates with a water storage container (13), and a sixth valve (12) is disposed on the bypass pipe (11).

2. The flammable and explosive liquid transportation system according to claim 1, wherein a view mirror (17) is disposed on the liquid transportation pipeline (10), and the view mirror (17) is made of transparent material.

3. The flammable and explosive liquid transportation system according to claim 2, wherein the view mirror (17) is disposed between the third valve (7) and the fifth valve (9).

4. The flammable and explosive liquid transportation system according to claim 1, wherein a pressure gauge (3) and a safety valve are disposed on the gas inlet pipe (1).

5. The flammable and explosive liquid transportation system according to claim 1, wherein one end of the liquid transportation pipeline (10) is inserted into a bottom of the reaction vessel (15).

6. The flammable and explosive liquid transportation system according to claim 1, wherein the water storage container (13) is of a funnel structure, and a bottom of the funnel structure communicates with the bypass pipe (11).

7. The flammable and explosive liquid transportation system according to claim 1, wherein a weighting module (16) is disposed at a bottom of the raw material barrel (6).

8. A liquid transfer method based on the flammable and explosive liquid transportation system according to claim 1, used to transport a liquid forward in a normal state, and comprising the following steps: S1: determining that all valves are in a closed state, opening the first valve (2), the fourth valve (8), and the seventh valve (14), introducing an inert gas into the reaction vessel (15) for inerting, and closing the fourth valve (8) after sufficient inerting; S2: opening the third valve (7) and the second valve (4), introducing an inert gas into the raw material barrel (6) for pressurization, and when a liquid enters the reaction vessel (15) through the liquid transportation pipeline (10), maintaining opening of the first valve (2), and transporting the liquid to the reaction vessel (15); and S3: after the transportation of the liquid is completed, closing the third valve (7), opening the fourth valve (8), closing the second valve (4), and transporting a remaining liquid in the liquid transportation pipeline (10) to the reaction vessel (15) by using an inert gas.

9. The liquid transfer method claim 8, wherein the liquid transfer method is used to reversely transport a liquid in an emergency disposal state, and comprises the following steps: step 1: determining that all valves are in a closed state, opening the second valve (4), slowly opening the first valve (2), and introducing an inert gas into the raw material barrel (6) for sufficient inerting; step 2: opening the fifth valve (9) and the sixth valve (12), and filling the liquid transportation pipeline (10) with water by using the water storage container (13); and step 3: closing the sixth valve (12), opening the third valve (7) and the seventh valve (14), and transferring the liquid in a reaction vessel (15) to the raw material barrel (6) through siphoning.

10. A method of using the flammable and explosive liquid transportation system according to claim 1 for flammable or explosive liquid transfer, wherein the flammable or explosive liquid transfer comprises: obtaining the flammable and explosive liquid transportation system of claim 1; transferring liquid from the raw material barrel (6) to the reaction vessel (15); and transferring liquid from the reaction vessel (15) to the raw material barrel (6).

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) The accompanying drawings illustrated herein are provided to provide a further understanding of embodiments of the present disclosure, and constitute a part of this application but are not construed as limiting embodiments of the present disclosure. In the drawings:

(2) FIG. 1 is a schematic diagram of a structure of a system according to the present disclosure.

DETAILED DESCRIPTION

(3) To make the objectives, technical solutions, and advantages of the present disclosure clearer, the present disclosure will be further described in detail with reference to embodiments and drawings. Exemplary implementations of the present disclosure together with description thereof are intended to explain the present disclosure, and are not to be construed as limiting the present disclosure.

Example

(4) FIG. 1 shows a flammable and explosive liquid transportation system. The system includes a gas inlet pipe 1 and a liquid transportation pipeline 10; one end of the gas inlet pipe 1 communicates with a raw material barrel 6, the other end of the gas inlet pipe 1 communicates with an inert gas source, and a first valve 2 and a second valve 4 are sequentially disposed on the gas inlet pipe 1 along a gas flow direction; two ends (18) of the liquid transportation pipeline 10 respectively communicate with the raw material barrel 6 and a reaction vessel 15, one end of the liquid transportation pipeline 10 is inserted into the bottom of the reaction vessel 15, a third valve 7, a fifth valve 9, and a seventh valve 14 are sequentially disposed on the liquid transportation pipeline 10, and the third valve 7 is disposed near the raw material barrel 6; the gas inlet pipe 1 and the liquid transportation pipeline 10 communicate with each other through a connecting pipe 5, a fourth valve 8 is disposed on the connecting pipe 5, a joint between the connecting pipe 5 and the gas inlet pipe 1 is disposed at a front end of the second valve 4, and a joint between the connecting pipe 5 and the liquid transportation pipeline 10 is disposed at a rear end of the third valve 7 when a liquid is transported from the raw material barrel 6 to the reaction vessel 15. A one-way valve is disposed on the liquid transportation pipeline 10, the one-way valve is disposed in parallel with the fifth valve 9, and the one-way valve only allows a liquid or a gas to enter the reaction vessel 15 from the raw material barrel 6. The one-way valve can inhibit a liquid in the liquid transportation pipeline 10 from flowing back due to sudden interruption of an inert gas; a bypass pipe 11 is disposed on the liquid transportation pipeline 10, one end of the bypass pipe 11 communicates with the liquid transportation pipeline 10, the other end of the bypass pipe 11 communicates with a water storage container 13, and a sixth valve 12 is disposed on the bypass pipe 11.

(5) In this example, a view mirror 17 is disposed on the liquid transportation pipeline 10, and the view mirror 17 is made of a transparent material. The view mirror 17 is disposed between the third valve 7 and the fifth valve 9. A ground cable is disposed between the view mirror 17 and the third valve 7.

(6) In this example, a pressure gauge 3 and a safety valve are disposed on the gas inlet pipe 1. The water storage container 13 is of a funnel structure, and the bottom of the funnel structure communicates with the bypass pipe 11.

(7) In this example, a weighting module 16 is disposed at the bottom of the raw material barrel 6.

(8) The system in this embodiment can implement both transfer of a liquid from the raw material barrel 6 to the reaction vessel 15 and transfer of a liquid from the reaction vessel 15 to the raw material barrel 6.

(9) When the system is used to transport a liquid forward in a normal state (from the raw material barrel 6 to the reaction vessel 15), the following steps are included: S1: determining that all valves are in a closed state, opening the first valve 2, adjusting the first valve 2 to required pressure based on the pressure gauge 3, opening the fourth valve 8 and the seventh valve 14, introducing an inert gas into the reaction vessel 15 for inerting, and closing the fourth valve 8 after sufficient inerting; S2: opening the third valve 7 and the second valve 4, introducing an inert gas into the raw material barrel 6 for pressurization, and when a liquid enters the reaction vessel 15 through the liquid transportation pipeline 10, maintaining opening of the first valve 2, and transporting the liquid to the reaction vessel 15; and S3: after the transportation of the liquid is completed, closing the third valve 7, opening the fourth valve 8, closing the second valve 4, transporting a remaining liquid in the liquid transportation pipeline 10 to the reaction vessel 15 by using an inert gas, and closing all the valves after it is determined, based on the weighting module 16, that a required mass of the transported liquid is reached.

(10) When the system is used to reversely transport a liquid in an emergency disposal state (to transfer the liquid from the reaction vessel 15 to the raw material barrel 6), the following steps are included: step 1: determining that all valves are in a closed state, opening the second valve 4, slowly opening the first valve 2 based on the pressure gauge 3, and introducing an inert gas into the raw material barrel 6 for sufficient inerting; step 2: opening the fifth valve 9 and the sixth valve 12, and filling the liquid transportation pipeline 10 with water by using the water storage container 13; and step 3: closing the sixth valve 12, opening the third valve 7 and the seventh valve 14, transferring a liquid in the reaction vessel 15 to the raw material barrel 6 through siphoning, and closing all the valves after the step ends.

(11) In the foregoing specific implementations, the objective, technical solutions, and benefits of the present disclosure are further described in detail. It should be understood that the descriptions are merely specific implementations of the present disclosure, but are not intended to limit the protection scope of the present disclosure. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present disclosure should fall within the protection scope of the present disclosure.