RU181975U1 - Pumping and distribution system for toxic liquids or gases - Google Patents

Abstract

The system for pumping and distributing toxic liquids or gases makes it possible to safely use existing pipelines in systems for pumping and distributing toxic liquids for gases, contains a carrier pipe for pumping liquids or gases, and the carrier pipe is laid inside the pressure hose with a higher working pressure than the carrier pipe moreover, the pressure hose is connected through an injection pump to the subsystem for neutralizing toxic liquids or gases, and in the pressure hose are installed leak detection sensors configured to enable the neutralization subsystem when detecting liquids or gases in a pressure hose.

Description

Technical field

The system can be used both in in-shop and in-shop systems of technological pipelines and is designed for the safe distribution of chemically hazardous toxic liquids or gases (such as nitric acid, ammonia, hydrochloric acid, chlorine), which are used in factories.

State of the art

From RF patent No. 2367506, IPC B01D 53/18, published September 20, 2009, there is a known method for neutralizing accidental emissions of gaseous chlorine, including supplying a chlorine-air mixture to a neutralizing alkaline liquid, circulating a neutralizing liquid by a pump, characterized in that the mixing and interaction of the two media occurs in the ejection process during vacuum absorption of a chlorine-air mixture into a stream of neutralizing liquid. This method is designed to neutralize toxic liquids and gases in a room where toxic materials are pumped or stored and where a leak has occurred. The disadvantage of the system is the decrease in the safety of people in the room, as hazardous toxic wildness and gases enter the air of the working area of these rooms.

Technical problem

The pipelines used in the systems for pumping and distributing toxic liquids and gases have very stringent requirements, namely: pipelines should be made of materials that are resistant to the environment (for example, corrosion), the design pressure for pressure pipelines should be taken in accordance with the design, but not lower than 5 MPa. At the same time, the pipeline used in intra-shop or inter-shop joints has a minimum length and should have a minimum number of collapsible joints.

The technical problem is that the inner walls of pipelines are gradually thinning, as a result of which leakage of chemically hazardous toxic liquid or gases occurs.

Another technical problem is that it is impossible to quickly and accurately determine the place of a leak in the pipeline, i.e. with minimal leakage, repair and / or replacement of the entire carrier pipeline is necessary.

Thus, the characteristics of pipelines used in the pumping and distribution systems of toxic liquids and gases are critical with respect to the safety of the operation of the entire pumping and distribution system.

Utility Model Essence

The proposed utility model is aimed at solving the technical problems described above, namely, it allows the safe use of existing pipelines in systems for pumping and distributing toxic liquids and gases.

The solution to technical problems is achieved by the fact that in a system for pumping and distributing toxic liquids or gases containing a carrier pipe for pumping liquids or gases, the carrier pipe is laid inside the pressure hose with a higher working pressure than the carrier pipe, and the pressure hose is connected through an injection pump with a subsystem for neutralizing toxic liquids or gases, moreover, leak detection sensors are installed in the pressure hose, which are capable of turning on the subsystem neutralization when detecting liquids or gases in a pressure head.

Brief Description of the Drawings

The utility model is illustrated by the attached figure 1, which schematically shows the following elements of a system for pumping and distributing toxic liquids or gases:

1 - carrier pipe with toxic liquid or gas.

2 - pressure head sleeve.

3 - leak detection sensors.

4 - gas analyzer.

5 - capacity for neutralizing liquid.

6 - injection pump.

7 - control unit of the neutralization subsystem.

Utility Model Implementation

The operation of the utility model will be explained with reference to the positions of figure 1.

Toxic liquid or gas is pumped through the carrier pipe 1 with a maximum working pressure of not more than 5 MPa. The pressure hose 2, inside which the carrier pipe 1 is located, is designed for a pressure of at least 20 MPa, which ensures reliable operation in the distribution of hazardous liquids and gases under conditions of relatively high working pressure of these media. When a leak occurs in the carrier pipe 1, toxic liquid or gas enters the pressure hose 2, where it is detected by leak detection sensors 3, the signal from which goes to the gas detector 4, which detects the presence of toxic liquid or gas in the pressure hose 1 and turns on via the control unit 7 subsystem of neutralization of toxic liquid. The injection pump 6 is turned on, which feeds the neutralizing liquid in a closed circuit and when pumping neutralizing liquid 5 from the tank, a vacuum is created in the injector, so that toxic liquid or gas is sucked directly from the pressure hose 1 into the tank with neutralizing liquid 5 and is neutralized. Contact of a toxic liquid or gas with a neutralizing liquid triggers a chemical reaction that completely neutralizes the toxic liquid or gas. The arrow in figure 1 shows how the purified air is transferred from the neutralization subsystem back to the atmosphere.

Thus, the proposed system can be used both in intra-shop and in-shop systems of technological pipelines and provides a safe distribution of chemically hazardous toxic liquids or gases that are used in production.

At the same time, toxic liquids and gases do not enter the working area of the premises in which the pumping system is located.

The use of a pressure hose with a working pressure several times greater than the working pressure of the carrier pipe allows the use of a plurality of collapsible joints on the latter, without restrictions on the length of the pipeline. In this case, even if the carrier pipe breaks under the influence of the pressure of the distributed liquid or gas, the leak will not occur in the space of the working zone, but in the pressure hose.

This ensures a safe distribution of chemically hazardous toxic liquids or gases.

Claims (2)

1. A system for pumping and distributing toxic liquids or gases, comprising a carrier pipe for pumping liquids or gases, characterized in that the carrier pipe is laid inside the pressure hose with a higher working pressure than the carrier pipe, and the pressure hose is connected through an injection a pump with a subsystem for neutralizing toxic liquids or gases, moreover, leak detection sensors are installed in the pressure hose, which are capable of turning on the neutralization subsystem when it is detected liquids or gases in the pressure sleeve. 2. The system according to claim 1, characterized in that the maximum working pressure of the carrier pipe is not more than 5 MPa, and the maximum working pressure of the pressure hose is at least 20 MPa.

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