Novel positive pressure discharge method after gas detection

Abstract

The invention discloses a novel positive pressure discharge method after coal gas detection, and relates to the technical field of coal gas detection, equipment used in the novel positive pressure discharge method after coal gas detection comprises a coal gas analyzer, a sucking pump and a coal gas pipeline used for conveying coal gas, the gas inlet end of the coal gas analyzer is connected with a gas inlet pipe, and the gas inlet pipe is connected with a gas outlet pipe; the gas inlet pipe is communicated and connected with the gas pipeline, a gas inlet stop valve is arranged on the gas inlet pipe, the gas outlet end of the gas analyzer is connected with the gas inlet end of the sucking pump, the gas outlet end of the sucking pump is connected with a gas outlet pipe, the gas outlet pipe is communicated and connected with the gas pipeline, and a gas outlet stop valve is arranged on the gas outlet pipe; according to the invention, the analyzed gas is discharged into the original pipeline under positive pressure, so that environmental pollution and safety accidents can be effectively prevented, the safety of production and personnel in a workshop is ensured, and the method is very necessary for daily safe operation of enterprises.

Description

Technical Field

[0001] The invention relates to the technical field of gas detection, in particular to a novel positive pressure discharge method after gas detection. Background Art

[0002] As an important energy source and raw material, coal gas plays a key role in modern industrial production. Accurate measurement of parameters such as coal gas composition, concentration and calorific value is of great value for process control, safety monitoring and combustion optimization. By analyzing coal gas, the concentration of toxic and harmful gases in the gas can be detected and warned in time to ensure the safety of the production environment.

[0003] If the gas is discharged directly without effective treatment, it will not only cause serious pollution and harm to the environment, including contamination of water and soil, and harm to human health, but also cause energy waste when the gas is discharged. In addition, direct gas discharge may also be dangerous. The concentration of gas discharged instantly is very high, and there are many electrical equipment in the workshop, which is prone to explosion. Once an explosion occurs, the consequences are disastrous.

[0004] Therefore, as more and more emphasis is placed on personnel and production safety today, it is very important to design a new positive pressure discharge method after gas detection. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides a novel positive pressure discharge method after gas detection, which discharges the analyzed gas into the original pipeline at positive pressure, can effectively prevent environmental pollution and safety accidents, ensure the safety of production and personnel in the workshop, and is very necessary for the daily safe operation of the enterprise.

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: a new type of positive pressure discharge method after gas detection, the equipment used in the new type of positive pressure discharge method after gas detection includes a gas analyzer, an air extraction pump and a gas pipeline for gas transmission, the air inlet end of the gas analyzer is connected with an air inlet pipe, the air inlet pipe is connected to the gas pipeline, and an air inlet stop valve is arranged on the air inlet pipe, the air outlet end of the gas analyzer is connected to the air inlet end of the air extraction pump, the air outlet end of the air extraction pump is connected with an air outlet pipe, the air outlet pipe is connected to the gas pipeline, and an air outlet stop valve is arranged on the air outlet pipe; The steps of the new positive pressure discharge method after gas detection are as follows: S01: First, personnel check and determine the installation positions of the gas analyzer and the vacuum pump, and ensure that the vacuum pump is installed behind the gas analyzer and the air tightness of the entire equipment; S02: When measuring gas, open the gas inlet stop valve and the gas outlet stop valve, and then start the gas analyzer and the gas pump; S03: After the gas flow or gas pressure reaches the detection standard of the gas analyzer, the gas analyzer starts to detect; the gas being detected passes through the gas inlet pipe, the gas analyzer, the air pump, the gas outlet pipe in sequence and is discharged into the gas pipeline at positive pressure; S04: extract and collect detection data of gas analyzer in real time; During maintenance, close the air inlet and outlet stop valves as well as the gas analyzer and vacuum pump.

[0007] Preferably, the gas analyzer includes an air pressure sensor and a control module. The air pressure sensor is set within a range suitable for the gas analyzer to detect gas and is connected through the control module. The vacuum pump is a variable frequency vacuum pump and is controlled by the control module of the gas analyzer.

[0008] The present invention provides a novel positive pressure discharge method after gas detection, which has the following beneficial effects: 1. The present invention discharges the analyzed gas into the original pipeline at positive pressure, which can effectively prevent environmental pollution and safety accidents, ensure the safety of production and personnel in the workshop, and is very necessary for the daily safe operation of the enterprise; 2. The vacuum pump used in the present invention can be frequency-controlled by a gas analyzer to avoid inaccurate detection by the gas analyzer due to excessive rotation speed of the vacuum pump, thereby ensuring the stability and reliability of gas analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of a novel positive pressure discharge method after gas detection according to the present invention.

[0010] In the figure: 1. Air outlet stop valve; 2. Gas analyzer; 3. Air pump; 4. Gas pipeline; 5. Air outlet pipe; 6. Air inlet pipe; 7. Air inlet stop valve. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] like Figure 1As shown, a new type of positive pressure discharge method after gas detection, the equipment used in the new type of positive pressure discharge method after gas detection includes a gas analyzer 2, an air suction pump 3 and a gas pipeline 4 for gas transmission, the air inlet end of the gas analyzer 2 is connected with an air inlet pipe 6, the air inlet pipe 6 is connected to the gas pipeline 4, and an air inlet stop valve 7 is arranged on the air inlet pipe 6, the air outlet end of the gas analyzer 2 is connected to the air inlet end of the air suction pump 3, the air outlet end of the air suction pump 3 is connected with an air outlet pipe 5, the air outlet pipe 5 is connected to the gas pipeline 4, and an air outlet stop valve 1 is arranged on the air outlet pipe 5; the gas analyzer 2 includes an air pressure sensor and a control module, the air pressure sensor is set to a range suitable for the gas analyzer 2 to detect gas, and is connected through the control module, the air suction pump 3 is a variable frequency air suction pump 3, and is controlled by the control module of the gas analyzer 2.

[0013] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows: According to the instruction manual Figure 1 It can be known that when installing the present invention, the air inlet pipe 6, the gas analyzer 2, the air pump 3, and the air outlet pipe 5 are connected in sequence, and the air inlet pipe 6 and the air outlet pipe 5 are connected to the gas pipeline 4 respectively. During operation, the personnel first check and determine the installation positions of the gas analyzer 2 and the air pump 3, and ensure that the air pump 3 is installed behind the gas analyzer 2 and the air tightness of the whole set of equipment, so as to ensure that the detection work can be carried out smoothly and normally; when measuring the gas, open the air inlet stop valve 7 and the air outlet stop valve 1, and then start the gas analyzer 2 and the air pump 3; after the gas flow or air pressure reaches the detection standard of the gas analyzer 2, the standard here can be obtained through experiments, the gas analyzer 2 starts to detect; the gas under detection passes through the air inlet pipe 6, the gas analyzer 2, the air pump 3, the air outlet pipe 5 in turn and is discharged into the gas pipeline 4 under positive pressure; the detection data of the gas analyzer 2 is extracted and collected in real time; during the whole process, the gas does not need to be discharged to the outside, and the gas after detection by the present invention still returns to the original gas pipeline 4, which will not waste energy, can effectively prevent environmental pollution and safety accidents, and ensure the safety of production and personnel in the workshop, which is very necessary for the daily safe operation of the enterprise. During maintenance, close the air inlet stop valve 7, the air outlet stop valve 1, the gas analyzer 2 and the air pump 3.

[0014] Among them, the gas analyzer 2 includes an air pressure sensor and a control module. The air pressure sensor is set to a range suitable for the gas analyzer 2 to detect gas and is connected through the control module. The vacuum pump 3 is a variable frequency vacuum pump 3 and is controlled by the control module of the gas analyzer 2 to ensure that it can detect gas normally. It can also discharge the detected gas into the gas pipeline 4 under positive pressure through the variable frequency vacuum pump 3, with a high degree of automation.

[0015] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel positive pressure discharge method after gas detection, characterized in that: The equipment used in the novel positive pressure discharge method after coal gas detection comprises a coal gas analyzer (2), an air extraction pump (3) and a coal gas pipeline (4) for coal gas transmission, wherein the air inlet end of the coal gas analyzer (2) is connected to an air inlet pipe (6), the air inlet pipe (6) is connected to the coal gas pipeline (4), and an air inlet stop valve (7) is arranged on the air inlet pipe (6); the air outlet end of the coal gas analyzer (2) is connected to the air inlet end of the air extraction pump (3), the air outlet end of the air extraction pump (3) is connected to an air outlet pipe (5), the air outlet pipe (5) is connected to the coal gas pipeline (4), and an air outlet stop valve (1) is arranged on the air outlet pipe (5); The steps of the new positive pressure discharge method after gas detection are as follows: S01: First, the personnel check and determine the installation positions of the gas analyzer (2) and the air pump (3), and ensure that the air pump (3) is installed behind the gas analyzer (2) and the air tightness of the entire equipment; S02: When measuring gas, open the gas inlet stop valve (7) and the gas outlet stop valve (1), and then start the gas analyzer (2) and the gas extraction pump (3); S03: After the gas flow or gas pressure reaches the detection standard of the gas analyzer (2), the gas analyzer (2) starts detection; the gas being detected passes through the gas inlet pipe (6), the gas analyzer (2), the air pump (3), the gas outlet pipe (5) in sequence and is discharged into the gas pipeline (4) under positive pressure; S04: extracting and collecting the detection data of the gas analyzer (2) in real time.

2. A novel positive pressure discharge method after gas detection according to claim 1, characterized in that: The gas analyzer (2) comprises a pressure sensor and a control module. The pressure sensor is set within a range suitable for the gas analyzer (2) to detect gas and is connected via the control module. The air pump (3) is a variable frequency air pump (3) and is controlled via the control module of the gas analyzer (2).

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