Solid-containing chemical gas discharging device

Abstract

The utility model discloses a solid-containing chemical gas discharging device which comprises an exhaust pipe and a flame arrester, wherein the front end of the exhaust pipe is connected with a reactor, and the flame arrester is arranged in the exhaust pipe; the device is characterized in that a spraying head is arranged in the exhaust pipe on the front side of the flame arrester, a cleaning liquid conveying pipe penetrates through the exhaust pipe to be connected with the spraying head, and more than one liquid inlet control valve is arranged on the cleaning liquid conveying pipe; a gas purging pipe penetrates through the exhaust pipe, more than one gas inlet control valve is arranged on the gas purging pipe, and a gas conveying pipe is positioned at the tail end in the exhaust pipe and is arranged on the front side of the flame arrester; according to the utility model, the risk of overpressure caused by pipeline blockage can be prevented, accidents such as fire blast can be avoided, continuous and stable discharge can be realized, and the efficiency and safety of chemical production can be improved.

Description

Technical Field

[0001] The utility model relates to a chemical gas discharge device, in particular to a chemical gas discharge device containing solid and hydrogen. Background Art

[0002] At present, the safe discharge of chemical gases in the fields of medicine, petrochemicals, etc., especially organic chemical waste gas containing hydrogen, has been a problem that has been plaguing the entire industry. The explosion limit range of hydrogen is very wide, and it must be discharged directly into the air. If the discharge process is too fast or encounters an ignition source, it is easy to cause the risk of combustion and explosion, which will trigger the reaction system and cause major safety accidents such as explosions. For safety reasons, existing chemical gas discharge devices often use flame arresters in the discharge pipe and then discharge directly. However, when the gas contains solid powder, the flame arrester will be blocked during the discharge process, resulting in safety hazards such as the reaction system being unable to vent normally and overpressure explosion. Summary of the Invention

[0003] The purpose of this utility model is to address the above-mentioned shortcomings of the existing technology and provide a solidified industrial gas discharge device, which can not only prevent the risk of overpressure caused by pipeline blockage and avoid the occurrence of accidents such as explosion, but also achieve continuous and stable discharge, thereby improving the efficiency and safety of chemical production.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a solid-containing process gas exhaust device, comprising an exhaust pipe whose front end is connected to a reactor and a flame arrester arranged in the exhaust pipe; the characteristics are: a spray head is provided in the exhaust pipe on the front side of the flame arrester, a cleaning liquid delivery pipe passes through the exhaust pipe and is connected to the spray head, and one or more liquid inlet control valves are provided on the cleaning liquid delivery pipe; a gas purge pipe passes through the exhaust pipe, and one or more gas purge control valves are provided on the gas purge pipe, and the end of the gas delivery pipe located in the exhaust pipe is placed on the front side of the flame arrester.

[0005] When the utility model is used, solid-containing gas is discharged to a safe place through the exhaust pipe and the flame arrester; the solids remaining in the exhaust pipe and the flame arrester are purged by regularly opening the air inlet control valve and introducing inert gas to prevent accumulation and blockage; then the liquid inlet control valve is opened to evenly clean the flame arrester with cleaning liquid through the spray head to clean the residual solids; then the inert gas is introduced again to clean the residual cleaning liquid; the utility model can not only prevent the risk of overpressure caused by pipeline blockage and avoid the occurrence of accidents such as explosion, but also achieve continuous and stable discharge, thereby improving the efficiency and safety of chemical production;

[0006] As a further improvement of the present invention, the cleaning liquid delivery pipe is provided with two liquid inlet control valves connected in series; the gas purge pipe is provided with two air inlet control valves connected in series; the use of double control valves can prevent the internal leakage of one valve from affecting the reactor, thereby improving safety;

[0007] As a further improvement of the present invention, flow meters are provided on the cleaning liquid delivery pipe and the gas purge pipe; the amount of cleaning liquid and inert gas introduced can be accurately controlled;

[0008] As a further improvement of the present invention, part of the exhaust pipe with a built-in flame arrester is arranged in an inclined manner with the front higher and the back lower; this can prevent the vaporized liquid in the exhaust gas from condensing and flowing back into the reactor, thereby ensuring the normal progress of the reaction;

[0009] In summary, the present invention can not only prevent the risk of overpressure caused by pipeline blockage and avoid accidents such as explosion, but also achieve continuous and stable discharge, thereby improving the efficiency and safety of chemical production. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the front view of the embodiment of the present utility model. DETAILED DESCRIPTION

[0011] The present invention will be further described in detail below with reference to the accompanying drawings.

[0012] like Figure 1 As shown, this embodiment is a solidified process gas exhaust device, comprising an exhaust pipe 1 connected to a reactor 9 at the front end, a flame arrester 2 arranged in the exhaust pipe, and a portion of the exhaust pipe 1 with the flame arrester 2 arranged therein is inclined with the front higher and the rear lower; a spray head 3 is provided in the exhaust pipe 1 in front of the flame arrester 2, a cleaning liquid delivery pipe 4 passes through the exhaust pipe 1 and is connected to the spray head 3, and two liquid inlet control valves 5 connected in series are provided on the cleaning liquid delivery pipe 4; a gas purge pipe 6 passes through the exhaust pipe 1, and two air inlet control valves 7 connected in series are provided on the gas purge pipe 6, and the end of the gas delivery pipe 6 located in the exhaust pipe is placed in front of the flame arrester 2; a flow meter 8 is provided on both the cleaning liquid delivery pipe 4 and the gas purge pipe 6.

[0013] When the utility model is used, solid-containing gas is discharged to a safe place through the exhaust pipe 1 and the flame arrester 2; by regularly opening the two air inlet control valves 7 and introducing inert gas, the solid powder remaining in the exhaust pipe 1 and the flame arrester 2 is purged to prevent accumulation and blockage; then the liquid inlet control valve 5 is opened, and the cleaning liquid is passed through the spray head 3 to evenly clean the flame arrester 2 and clean the residual solids; then the inert gas is introduced again to purge the residual cleaning liquid; the utility model can not only prevent the risk of overpressure caused by pipeline blockage and avoid the occurrence of accidents such as combustion and explosion, but also achieve continuous and stable discharge, thereby improving the efficiency and safety of chemical production;

[0014] Both the cleaning liquid delivery pipe 4 and the gas purge pipe 6 use dual control valves to prevent one valve from affecting the reactor due to internal leakage, further improving safety. The flow meter 8 can accurately control the amount of cleaning liquid and inert gas introduced, reducing the impact on the reaction system. The flame arrester 2 and part of the exhaust pipe 1 are arranged in an inclined manner with the front higher and the back lower, which can prevent the vaporized liquid in the exhaust gas from condensing and flowing back into the reactor 9, ensuring the normal progress of the reaction.

[0015] The above embodiments have been used for illustration, but it should be understood that the above embodiments are only used for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments.

Claims

1. A solidified gas exhaust device comprising an exhaust pipe connected to a reactor at the front end and a flame arrester disposed in the exhaust pipe; characterized in that: A spray head is provided in the exhaust pipe on the front side of the flame arrester, a cleaning liquid delivery pipe passes through the exhaust pipe and is connected to the spray head, and one or more liquid inlet control valves are provided on the cleaning liquid delivery pipe; a gas purge pipe passes through the exhaust pipe, and one or more gas inlet control valves are provided on the gas purge pipe, and the end of the gas delivery pipe located in the exhaust pipe is placed on the front side of the flame arrester.

2. The solidified gas discharge device according to claim 1, characterized in that: The cleaning liquid delivery pipe is provided with two liquid inlet control valves connected in series; the gas purge pipe is provided with two gas inlet control valves connected in series.

3. The solidified gas exhaust device according to claim 1 or 2, characterized in that: Flow meters are provided on the cleaning liquid delivery pipe and the gas purge pipe.

4. The device for discharging solidified process gas according to claim 3, characterized in that: The exhaust pipes with built-in flame arresters are arranged at an angle with the front higher and the back lower.

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