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CN-224228919-U - Protection device for air separation liquid ammonia pump

CN224228919UCN 224228919 UCN224228919 UCN 224228919UCN-224228919-U

Abstract

The utility model discloses a protection device for an air separation liquid ammonia pump, which relates to the technical field of air separation liquid ammonia pumps and comprises a base, wherein the top of the base is fixedly connected with a placement frame, the top of the placement frame is provided with a liquid ammonia pump, the bottom of the base is communicated with a liquid tank, the top of the base is fixedly connected with a vertical plate, the right side of the liquid tank is communicated with a first conveying pipe, the left side of the first conveying pipe is rotatably connected with a spray pipe, the first conveying pipe is communicated with the spray pipe, in the emergency treatment process of liquid ammonia leakage, dilute acid solution is sprayed through the spray pipe, the concentration of ammonia gas is reduced, the concentration of harmful gas is reduced, the dynamic adjustment of a spraying angle is realized through a swinging mechanism, the spray pipe sprays the dilute acid solution to a leakage area in a mist form, the dilute acid solution and ammonia gas in air are subjected to neutralization reaction, harmless or low-harmful salt substances are generated, the concentration of ammonia gas is effectively reduced, and the stimulation to human body and the corrosion to equipment are reduced.

Inventors

  • GUO MAN
  • FAN SHUHONG
  • JIAO LEILEI
  • LIU ZHIQIN
  • JIANG TIANYI
  • LU WEICAI

Assignees

  • 山西高义钢铁有限公司

Dates

Publication Date
20260512
Application Date
20250721

Claims (7)

  1. 1. The protection device for the air separation liquid ammonia pump comprises a base (1) and is characterized in that a placement frame (2) is fixedly connected to the top of the base (1), a liquid ammonia pump (3) is arranged at the top of the placement frame (2), a liquid tank (4) is arranged at the bottom of the base (1) in a communicating manner, a vertical plate (5) is fixedly connected to the top of the base (1), a first conveying pipe (6) is arranged at the right side of the liquid tank (4) in a communicating manner, a spray pipe (7) is connected to the left side of the first conveying pipe (6) in a rotating manner, and the first conveying pipe (6) is communicated with the spray pipe (7).
  2. 2. The protection device for the air separation liquid ammonia pump according to claim 1, wherein a swing mechanism (8) is arranged on the left side of the vertical plate (5), the swing mechanism (8) comprises a motor (811), the motor (811) is fixedly connected to the right side of the vertical plate (5), the output end of the motor (811) is fixedly connected with a first rotating rod (812) through a coupler, and the first rotating rod (812) movably penetrates through the vertical plate (5) and extends to the left side of the vertical plate.
  3. 3. The protection device for the air separation liquid ammonia pump according to claim 2, wherein a connecting plate (813) is fixedly connected to the left side of the first rotating rod (812), and a fixing rod (814) is fixedly connected to the left side of the connecting plate (813).
  4. 4. The protection device for the air separation liquid ammonia pump according to claim 3, wherein a second rotating rod (815) movably penetrates through the inside of the vertical plate (5) and extends towards the left side and the right side of the vertical plate, the second rotating rod (815) is fixedly connected with the spray pipe (7), an arc plate (816) is fixedly connected to the left side of the second rotating rod (815), a connecting hole (817) is formed in the inside of the arc plate (816), and the connecting hole (817) is sleeved on the outer wall of the fixed rod (814).
  5. 5. The protection device for an air separation liquid ammonia pump according to claim 4, wherein a screening mechanism (9) is arranged in the liquid tank (4), the screening mechanism (9) comprises a chute (911), the chute (911) is formed in the inner wall of the liquid tank (4), a slide block (912) is slidably connected in the chute (911), and a spring (913) is fixedly connected between the slide block (912) and the inner wall of the chute (911).
  6. 6. The protection device for an air separation liquid ammonia pump according to claim 5, wherein a screen plate (914) is fixedly connected to the left side of the slider (912), a vertical hole (915) is formed in the left side of the liquid tank (4), a T-shaped plate (916) is fixedly connected to the left side of the screen plate (914), and the T-shaped plate (916) extends leftwards through the vertical hole (915).
  7. 7. The protective device for an air separation liquid ammonia pump according to claim 6, wherein an abutting rod (917) is fixedly connected to the bottom of the arc-shaped plate (816), and the abutting rod (917) is arranged at the top of the T-shaped plate (916).

Description

Protection device for air separation liquid ammonia pump Technical Field The utility model relates to the field of air separation liquid ammonia pumps, in particular to a protective device for an air separation liquid ammonia pump. Background Liquid ammonia, also known as anhydrous ammonia, is a colorless liquid with a strong pungent odor, a relative density of 0.77 (liquid), a melting point of-77.7 ℃, and a boiling point of-33.5 ℃. Ammonia is an important chemical raw material, and for convenience in transportation and storage, gaseous ammonia is usually pressurized or cooled to obtain liquid ammonia. The liquid ammonia is easy to dissolve in water, ammonium ions NH4 < + > and hydroxyl ions OH < - >, the solution is alkaline, and can not coexist with substances such as acetaldehyde, acrolein, boron and the like, and the solution is decomposed into ammonia and hydrogen at high temperature. The liquid ammonia is widely applied in industry, has corrosiveness and is easy to volatilize, so that the occurrence rate of chemical accidents is very high. The liquid ammonia is conveyed in a low-temperature and sealed environment, so that the liquid ammonia is conveyed with high requirements on a pump, a pump which is specially used for conveying the liquid ammonia, namely a liquid ammonia pump, is basically selected from a magnetic conveying pump, and has the remarkable characteristics that the pump has no shaft sealing part, namely no dynamic sealing leakage point. The magnetic transmission pump comprises a pump body, a magnetic transmission device and a motor. When the liquid ammonia pump leaks, the liquid ammonia pump volatilizes into the air, and the concentration is too high to cause great damage, so that leaked gas needs to be treated in time to reduce the concentration of the leaked gas, and the damage to people is reduced. Disclosure of Invention Aiming at the defects of the prior art, the utility model provides a protective device for an air separation liquid ammonia pump, which solves the problems of the background art. The protection device for the air separation liquid ammonia pump comprises a base, wherein the top of the base is fixedly connected with a placement frame, the top of the placement frame is provided with the liquid ammonia pump, the bottom of the base is communicated with a liquid tank, the top of the base is fixedly connected with a vertical plate, the right side of the liquid tank is communicated with a first conveying pipe, the left side of the first conveying pipe is rotatably connected with a spray pipe, and the first conveying pipe is communicated with the spray pipe. As a further technical scheme of the utility model, the left side of the vertical plate is provided with the swing mechanism, the swing mechanism comprises a motor, the motor is fixedly connected to the right side of the vertical plate, the output end of the motor is fixedly connected with a first rotating rod through a coupler, and the first rotating rod movably penetrates through the vertical plate and extends to the left side of the vertical plate. As a further technical scheme of the utility model, the left side of the first rotating rod is fixedly connected with a connecting plate, and the left side of the connecting plate is fixedly connected with a fixing rod. As a further technical scheme of the utility model, the inside of the vertical plate is movably penetrated with a second rotating rod and extends towards the left side and the right side of the vertical plate, the second rotating rod is fixedly connected with the spray pipe, the left side of the second rotating rod is fixedly connected with an arc plate, the inside of the arc plate is provided with a connecting hole, the connecting hole is sleeved on the outer wall of the fixing rod, when a liquid ammonia pump leaks, ammonia gas rapidly diffuses into surrounding air, the device starts an emergency treatment program, a dilute acid solution in a liquid tank is conveyed to the spray pipe through a first conveying pipe and is ready for spraying and neutralizing treatment, the motor is started, the first rotating rod is driven to rotate through a coupler, the connecting plate and the fixing rod are driven to do circular motion, the fixing rod slides in a connecting hole of the arc plate, the arc plate and the second rotating rod are driven to reciprocate within a certain angle range, and the second rotating rod is fixedly connected with the spray pipe, so that the spray pipe synchronously swings along with the second rotating rod, the dilute acid solution is uniformly sprayed to a leakage area in a mist form, the dilute acid solution is fully contacted with ammonia gas in air and is subjected to neutralization reaction, harmless or low-harmful salt substances are generated, the concentration of ammonia gas is effectively reduced, and the irritation to human body and the corrosion to equipment is reduced. As a further technical scheme of the utility model, a screen