Control method for multi-direction natural gas conveying

Abstract

The invention provides a control method for multi-direction natural gas conveying. The control method comprises the steps that firstly, the input end of a first pipeline, the input end of a second pipeline and the input end of a third pipeline are connected with supply source equipment through switching valves, the valves are opened at the same time, at the time, a blocking mechanism located in the first pipeline is switched into the conduction state from the seal state under the action of fluid pressure, a first connector is blocked, and first source equipment supplies high-pressure fluid toreceiving consumption equipment; then, when the high-pressure fluid stored in the first source equipment is used up, blockage of the first connector is released, at the time, a blocking mechanism located in the second pipeline is switched into the conduction state from the seal state under the action of fluid pressure, a second connector is blocked, and second source equipment supplies high-pressure fluid to the receiving consumption equipment; and finally, when the high-pressure fluid stored in the second source equipment is used up, blockage of the second connector is released, and at the time, third source equipment supplies high-pressure fluid to the receiving consumption equipment.

Description

technical field [0001] The invention relates to a valve, in particular to a control method for multidirectional natural gas transportation. Background technique [0002] In real life or in the chemical industry, it is often necessary to supply high-pressure fluid to equipment, including high-pressure gas and high-pressure liquid, which are divided into three categories according to the number of supply source equipment and receiving and consuming equipment. The equipment transports high-pressure fluid, the second category, one supply source equipment transmits high-pressure fluid to multiple receiving and consuming equipment, the third category, multiple supply source equipment transmits high-pressure fluid to one receiving and consuming equipment, for the third category, especially When the consumption rate of the receiving and consuming equipment is high, multiple supply source equipment is required to deliver high-pressure fluid to one receiving and consuming equipment at...

AI Technical Summary

Problems solved by technology

[0002] In real life or in the chemical industry, it is often necessary to supply high-pressure fluid to equipment, including high-pressure gas and high-pressure liquid, which are divided into three categories according to the number of supply source equipment and receiving and consuming equipment. The equipment transports high-pressure fluid, the second category, one supply source equipment transmits high-pressure fluid to multiple receiving and consuming equipment, the third category, multiple supply source equipment delivers high-pressure fluid to one receiving and consuming equipment, and for the third category, especially When the consumption rate of the receiving and consuming equipment is high, multiple supply source equipment is required to deliver high-pressure fluid to one receiving and consuming equipment at the same time, and the supply source equipment is connected to the receiving and consuming equipment in turn. For example, in a large restaurant, the gas tank is connected to the stove When the stove is supplying liquefied gas, multiple gas tanks are connected to the stove at the same time and the gas tanks supply liquefied gas to the stove in turn. , to reduce the frequency of changing gas tanks, for this reason, for the connection between multiple supply source equipment and one receiving consumption equipment, the inventor designed a parallel safety equipment with ingenious structure, simple principle, automatic triggering, and convenient operation and use. Valve's Automatic Shutoff and Source Replacement Method

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