CN210504081U

CN210504081U - Pollution-free formula acidizing fluid replacement storage device

Info

Publication number: CN210504081U
Application number: CN201920627801.9U
Authority: CN
Inventors: 魏学; 韩振录; 李彩妍; 赵兴国; 唐龑惕; 杨建平; 黄维凤; 范彦斌
Original assignee: Ningxia Yingfu Jinhe Technology Co ltd
Current assignee: Ningxia Yingfu Jinhe Technology Co ltd
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-05-12
Anticipated expiration: 2029-05-05

Abstract

A pollution-free acid liquor replacement and storage device, which comprises an acid tank, a replacement part, a spray tower and a buffer tank, the replacement part comprises an air inlet pipe, a first air exhaust pipe and a second air exhaust pipe, in the utility model, the air exhaust pipes are arranged in an empty tank after acid liquor is discharged, one side of the acid tank ejects the gas in the acid tank by introducing compressed air to accelerate gas replacement, the other side of the acid tank adopts the air exhaust pipes to exhaust the gas from the top cover to accelerate discharge, a replacement passage is formed, therefore, the gas replacement speed and the gas replacement thoroughness in the acid tank can be accelerated, the gas pumped out by the gas pumping pipe mainly comprises hydrogen and sulfur trioxide, in letting in to spray column, absorb by the shower water, remaining hydrogen is discharged from the dashpot in the gas after the absorption, and sulfur trioxide is mostly absorbed by water and is dissolved, forms sulphuric acid and gets into the dashpot, is beaten back to spray column by the liquid phase entry and recycles.

Description

Pollution-free formula acidizing fluid replacement storage device

Technical Field

The utility model relates to a sulphuric acid is stored and is transported technical field, especially relates to a pollution-free formula acidizing fluid replacement storage device.

Background

Concentrated sulfuric acid is widely used as important chemical industry principle, and concentrated sulfuric acid adopts acid tank usually when storing, and acid tank inner wall is corrosion-resistant layer, and acid tank top sets up the top cap, sets up the manhole on the top cap, when concentrated sulfuric acid to in the acid tank discharges the back or transports, has the inside combustible gas that remains of acid tank, directly releases, can the polluted environment, perhaps causes the harm to human health.

Disclosure of Invention

There is a need for a contamination-free acid solution storage device.

The utility model provides a pollution-free formula acidizing fluid replacement storage device, includes acid tank, replacement part, spray column, dashpot, the acid tank is the closed tank body, offers row's sour mouth in the lateral wall lower part of acid tank, covers the top cap at the top of acid tank, offers the manhole on the top cap, the replacement part includes intake pipe, first exhaust tube, second exhaust tube, and the intake pipe is connected with the row's sour mouth of acid tank to let in compressed air, the one end of first exhaust tube, the one end of second exhaust tube stretch into inside the acid tank body, and the other end is connected with the tower cauldron gaseous phase entry of spray column, and the tip of first exhaust tube stretches into the inside position that is close to the top cap of acid tank body, and the tip of second exhaust tube stretches into the inside position that is close to the bottom of acid tank body, the spray column is packed column, and spray column sets up the gaseous phase entry of tower cauldron, the gaseous phase export on the top of tower, the liquid phase export that is close, Be close to the liquid phase entry on the top of the tower, the dashpot is for sealing the cell body, holds cooling water in the dashpot inside, moisturizing mouth, gas vent are seted up at the top of dashpot, still set up the backward flow mouth at one side lateral wall of dashpot, set up the influent stream mouth on the opposite side lateral wall, set up the gas distribution coil pipe in the dashpot inside, set up the aperture of giving vent to anger on the lateral wall of gas distribution coil pipe, the gaseous phase export of spray tower passes through the pipeline and is connected with the inside gas distribution coil pipe of dashpot to inside letting in unabsorbed gas to the dashpot, the liquid phase export of spray tower passes through the pipeline and is connected with the influent stream mouth of dashpot, and the liquid phase entry passes through the pipeline and.

Preferably, the replacement part further comprises a first gas detector and a second gas detector, wherein the first gas detector is hung inside the acid tank through a flexible string, the first gas detector stretches into the position, close to the top cover, inside the acid tank pipe body to detect the hydrogen content in the tank body, the second gas detector is hung inside the acid tank through the flexible string, and the second gas detector stretches into the position, close to the bottom, inside the acid tank pipe body to detect the content of sulfur trioxide in the tank body.

Preferably, still set up the basin at the dashpot top, the inside water that holds of basin, the open-top of basin, the gas vent at dashpot top lets in to the basin inside through the pipeline to get into the exhaust gas again in the basin and absorbed once by water.

The utility model discloses in, arrange the exhaust tube in the empty can after the acidizing fluid is discharged, one side of sour jar adopts the mode that lets in compressed air ejecting with the gas in the sour jar, gas replacement with higher speed, the opposite side adopts exhaust tube bar gas to take out with higher speed from the top cap and discharges, form the replacement route, so can accelerate the inside gas replacement speed and the thoroughness of sour jar, mainly be hydrogen and sulfur trioxide in the gas that the exhaust tube was taken out, let in to the spray column, absorb by the shower water, remaining hydrogen is discharged from the dashpot in the gas after the absorption, sulfur trioxide is mostly dissolved by water absorption, form sulphuric acid and get into the dashpot, it recycles to return the spray column by the liquid phase entry again.

The utility model discloses a remaining combustible gas in the replacement empty jar reduces the combustible gas content in the empty jar. The replacement process is also provided with a gas detection step, so that the content of the gas detected by a scientific method is less than a certain safety value, and the explosion danger caused by spark or high temperature during welding is avoided.

Of course, the utility model is also suitable for the processing when carrying out welding maintenance to the damage of other any position of acid tank.

Drawings

Fig. 1 is a schematic structural diagram of the pollution-free acid solution replacement storage device.

FIG. 2 is a schematic view of a gas detector.

In the figure: the acid tank 11, the acid discharge port 111, the top cover 112, the gas inlet pipe 21, the first extraction pipe 22, the second extraction pipe 23, the first gas detector 24, the second gas detector 25, the spray tower 31, the gas phase inlet 311, the gas phase outlet 312, the liquid phase outlet 313, the liquid phase inlet 314, the fan 315, the buffer tank 41, the water replenishment port 411, the exhaust port 412, the return port 413, the flow inlet 414, the gas distribution coil 415 and the water tank 51.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1 and 2, an embodiment of the present invention provides a pollution-free acid solution replacement storage device, including an acid tank 11, a replacement component, a spray tower 31 and a buffer tank 41, where the acid tank 11 is a closed tank, an acid discharge port 111 is formed in a lower portion of a sidewall of the acid tank 11, a top cover 112 is covered on a top portion of the acid tank 11, a manhole is formed on the top cover 112, the replacement component includes an air inlet pipe 21, a first air exhaust pipe 22 and a second air exhaust pipe 23, the air inlet pipe 21 is connected to the acid discharge port 111 of the acid tank 11 to introduce compressed air, one end of the first air exhaust pipe 22 and one end of the second air exhaust pipe 23 extend into a pipe body of the acid tank 11, the other end of the first air exhaust pipe 22 is connected to a tower bottom gas phase inlet 311 of the spray tower 31, an end of the first air exhaust pipe 22 extends into a position close to the top cover 112 inside the pipe body of the acid tank 11, an end of the second air exhaust pipe 23 extends into a, the spray tower 31 is a packed tower, the spray tower 31 is provided with a gas phase inlet 311 at the tower bottom, a gas phase outlet 312 at the tower top, a liquid phase outlet 313 close to the tower bottom and a liquid phase inlet 314 close to the tower top, the buffer tank 41 is a closed tank body, cooling water is contained in the buffer tank 41, a water replenishing port 411 and an exhaust port 412 are arranged at the top of the buffer tank 41, a reflux port 413 is arranged on the side wall of one side of the buffer tank 41, a flow inlet 414 is arranged on the side wall of the other side of the buffer tank 41, a gas distribution coil 415 is arranged in the buffer tank 41, small gas outlet holes are arranged on the side wall of the gas distribution coil 415, the gas phase outlet 312 of the spray tower 31 is connected with the gas distribution coil 415 in the buffer tank 41 through a pipeline, a fan 315 is arranged on the pipeline connected with the gas phase outlet 312, and the fan 315 also forms power for sucking and exhausting gas in the acid tank 11 so as to introduce unabsorbed gas into, a three-way valve is further provided in the discharge pipe of the blower 315 to connect the discharge pipe to the atmosphere or to the buffer tank 41, the liquid phase outlet 313 of the spray tower 31 is connected to the inflow port 414 of the buffer tank 41 through a pipe, and the liquid phase inlet 314 is connected to the return port 413 of the buffer tank 41 through a pipe.

The utility model discloses in, arrange the exhaust tube in the empty can after the acidizing fluid is discharged, the mode that lets in compressed air is adopted to one side of acid tank 11 is ejecting with the gas in acid tank 11, gaseous replacement with higher speed, the opposite side adopts exhaust tube bar gas to take out with higher speed from top cap 112 and discharges, form the replacement route, so can accelerate the inside gaseous replacement speed and the thoroughness of acid tank 11, mainly be hydrogen and sulfur trioxide in the gas that the exhaust tube was taken out, in letting in to spray column 31, absorb by the shower water, remaining hydrogen is discharged from buffer tank 41 in the gas after the absorption, the sulfur trioxide is absorbed by water for the most part, form sulphuric acid and get into buffer tank 41, it recycles to spray column 31 to be beaten back by liquid phase entry 314 again.

Further, the replacement part still includes first gas detector 24, second gas detector 25, first gas detector 24 hangs inside acid tank 11 through flexible string, and first gas detector 24 stretches into the inside position that is close to top cap 112 of acid tank 11 body to detect the internal hydrogen content of jar, and second gas detector 25 hangs inside acid tank 11 through flexible string, and the second gas detects stretches into the inside position that is close to the bottom of acid tank 11 body to detect the internal sulfur trioxide's of jar content.

Because the main component of remaining combustible gas is hydrogen and sulfur trioxide, and the proportion of hydrogen is less than compressed air's proportion, so hydrogen upwards rises to near top cap 112 automatically, is discharged by the suction of first exhaust tube 22, and sulfur trioxide's proportion is greater than compressed air's proportion, deposits in the jar body bottom very easily, so sets up the position that second exhaust tube 23 is close to the bottom, is more close with sulfur trioxide, is sucked more easily. Meanwhile, in order to accurately detect the gas content, the positions of the first gas detector 24 and the second gas detector 25 are also corresponding to the positions of the first gas exhaust pipe 22 and the second gas exhaust pipe 23.

Furthermore, a water tank 51 is further disposed on the top of the buffer tank 41, water is contained in the water tank 51, the top of the water tank 51 is open, and an exhaust port 412 on the top of the buffer tank 41 is introduced into the water tank 51 through a pipeline, so that the exhausted gas enters the water tank 51 again and is absorbed by the water.

The spray tower 31 absorbs the residual gas in the acid tank 11 as primary water, and the buffer tank 41 absorbs the residual gas as secondary water, but the hydrogen gas is light and is easily discharged upwards, but the sulfur trioxide gas is entrained in the discharged hydrogen gas, so that the water tank 51 is arranged to absorb the residual gas for three times.

The embodiment of the utility model provides a module or unit in the device can merge, divide and delete according to actual need.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A pollution-free formula acidizing fluid replacement storage device which characterized in that: the acid tank is a closed tank body, an acid discharge port is formed in the lower portion of the side wall of the acid tank, a top cover covers the top of the acid tank, a manhole is formed in the top cover, the replacement part comprises an air inlet pipe, a first air exhaust pipe and a second air exhaust pipe, the air inlet pipe is connected with the acid discharge port of the acid tank to allow compressed air to enter, one end of the first air exhaust pipe and one end of the second air exhaust pipe extend into the acid tank body, the other end of the first air exhaust pipe is connected with a tower kettle gas phase inlet of the spray tower, the end of the first air exhaust pipe extends into the position close to the top cover inside the acid tank body, the end of the second air exhaust pipe extends into the position close to the bottom inside the acid tank body, the spray tower is a packed tower, the spray tower is provided with a gas phase inlet of the tower kettle, a gas phase outlet of the tower top, a liquid phase outlet of the tower kettle and a liquid phase inlet close to the tower top, the buffer tank, the cooling water is placed in the buffer tank, the water replenishing port and the air exhaust port are formed in the top of the buffer tank, the backflow port is formed in one side wall of the buffer tank, the inflow port is formed in the other side wall of the buffer tank, the air distribution coil pipe is arranged in the buffer tank, the air outlet small hole is formed in the side wall of the air distribution coil pipe, the gas phase outlet of the spray tower is connected with the air distribution coil pipe in the buffer tank through a pipeline, unabsorbed gas is introduced into the buffer tank, the liquid phase outlet of the spray tower is connected with the inflow port of the buffer tank through a pipeline, and the liquid phase inlet is connected with the backflow port of the buffer tank through a pipeline.

2. The contamination-free acid storage device of claim 1, wherein: the replacement part further comprises a first gas detector and a second gas detector, the first gas detector is hung inside the acid tank through a flexible string, the first gas detector stretches into the position, close to the top cover, inside the acid tank pipe body to detect the hydrogen content in the tank body, the second gas detector is hung inside the acid tank through the flexible string, and the second gas detector stretches into the position, close to the bottom, inside the acid tank pipe body to detect the content of sulfur trioxide in the tank body.

3. The contamination-free acid storage device of claim 1, wherein: still set up the basin at the dashpot top, the inside water that contains of basin, the open-top of basin, the gas vent at dashpot top lets in to the basin inside through the pipeline to get into the combustion gas once more in the basin by water absorption.