CN219023834U

CN219023834U - Glycol waste gas receiving tank

Info

Publication number: CN219023834U
Application number: CN202223156418.0U
Authority: CN
Inventors: 张威; 杨艳伟; 李金衡; 王胜斌
Original assignee: Henan Xinbang Chemical Technology Co ltd
Current assignee: Henan Xinbang Chemical Technology Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-05-16
Anticipated expiration: 2032-11-28

Abstract

The utility model provides an ethylene glycol waste gas receiving tank, wherein an air outlet pipe is arranged at the middle lower part of a tank body, one end of the air outlet pipe is connected with an air inlet pipe, the air inlet pipe is a waste gas inlet pipe, two sides of the air outlet pipe are respectively provided with a row of air outlets with uniform intervals, a spray pipe is arranged at the upper part of the tank body, a spray header is arranged on the spray pipe, mixed liquid containing absorbent is introduced into the spray pipe, a liquid outlet is arranged at the bottom of the tank body, the air outlets are positioned at the lower parts of two sides of the air outlet pipe, two air outlets are arranged in a staggered manner, a cooling pipe is arranged in the middle of the tank body, the cooling pipe is positioned above the air outlet pipe and below the spray pipe, and cooling liquid is introduced into the cooling pipe. The beneficial effects are that: the receiving tank can directly receive waste gas, and the content of smoke dust and methyl nitrite in the waste gas is reduced by utilizing a spraying mode, the air outlet of the air outlet pipe in the tank faces downwards, and the two sides of the air outlet pipe are used for exhausting air in the receiving tank, so that the upward speed of the waste gas can be reduced, the stay time of the waste gas in the receiving tank is shorter, and the spraying effect is improved.

Description

Glycol waste gas receiving tank

Technical Field

The utility model relates to the field of waste gas treatment generated in ethylene glycol production, in particular to an ethylene glycol waste gas receiving tank.

Background

Ethylene glycol can produce methyl nitrite gas in the in-process of preparation in tail gas, and its vapour can form explosive mixture with the air, receives sunshine and shines or be heated and all easily decompose, has the danger of explosion, and traditional exhaust treatment device for ethylene glycol production can't be purified waste gas completely, causes air pollution and explosion's threat easily, and the health and safety of workman can be threatened to poisonous gas in the waste gas simultaneously.

The waste gas of glycol is generally subjected to harmless treatment such as incineration or recycling, and when glycol is prepared, the waste gas is generally directly discharged into treatment equipment, but because the waste gas possibly contains smoke particles and a large amount of methyl nitrite gas, and the temperature of the waste gas is higher when the waste gas enters the treatment equipment, the air flow speed is unstable, and the treatment equipment is seriously influenced, so a buffer device is added before the waste gas enters the treatment equipment.

Disclosure of Invention

The utility model provides an ethylene glycol waste gas receiving tank based on at least one of the technical problems.

A glycol waste gas receiving tank comprising: the tank body, the top of the tank body has the blast pipe, be equipped with discharge valve on the blast pipe the well lower part of the tank body is equipped with the outlet duct, the one end and the intake-tube connection of outlet duct, the intake pipe is waste gas admission pipe the outlet duct both sides respectively are equipped with the gas outlet of a row of interval uniformity the upper portion in the tank body is equipped with the shower, be equipped with the shower on the shower, let in the mixed solution that contains the absorbent in the shower still be equipped with pressure sensor in the blast pipe the bottom of the tank body is equipped with the liquid outlet.

Further preferably, the air outlets are positioned at the lower parts of two sides of the air outlet pipe, and the two rows of air outlets are arranged in a staggered manner.

Further preferably, a cooling pipe is arranged in the middle of the tank body, the cooling pipe is positioned above the air outlet pipe and below the spray pipe, and cooling liquid is introduced into the cooling pipe.

Further preferably, the cooling tube is a coil.

Further preferably, the cooling pipe is a spiral coil pipe with gradually reduced diameter.

The beneficial effects are that:

1. the receiving tank can directly receive the waste gas and reduce the contents of smoke dust and methyl nitrite in the waste gas in a spraying mode;

2. the air outlet of the air outlet pipe in the receiving tank is downward, and the two sides are exhausted to the receiving tank, so that the upward speed of the waste gas can be reduced, the residence time of the waste gas in the receiving tank is shorter, and the spraying effect is improved.

Drawings

FIG. 1 shows a schematic structural view of the present utility model;

FIG. 2 shows a cross-sectional structural view of the outlet tube;

fig. 3 shows a schematic structural diagram of the second embodiment.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

The utility model discloses a glycol waste gas receiving tank as shown in fig. 1-3, the top of jar body 1 has blast pipe 2, be equipped with discharge valve 10 on the blast pipe 2, upper portion in jar body 1 is equipped with shower 6, be equipped with shower head 7 on the shower 6, let in the mixed solution that contains the absorbent in the shower 6, the absorbent can adopt the content at about 30% -40% ethanol, still be equipped with pressure sensor 8 in blast pipe 2, pressure sensor 8 can monitor the inside pressure of jar body, according to pressure feedback, adjust discharge valve 10's exhaust velocity and guarantee that waste gas discharges steadily, let in processing apparatus with the waste gas after the preliminary treatment, be equipped with drain pipe 9 in jar body 1's bottom.

The middle lower part at jar body 1 is equipped with outlet duct 4, and the one end and the intake pipe 3 of outlet duct 4 are connected, and intake pipe 3 is the waste gas admission pipe, respectively is equipped with a row of interval even gas outlet 5 in outlet duct 4 both sides, and gas outlet 5 is located the lower part of outlet duct 4 both sides, so in the waste gas can enter into jar body 1 with the decurrent gesture of slope when exhausting, in this way when waste gas enters into jar body 1 upper portion, its speed can reduce by a wide margin, increases the contact time with spray mixed solution, improves the absorbing effect that sprays.

The two exhaust ports 5 are arranged in a staggered way, and the staggered arrangement can lead the exhaust to be more uniform.

Example 1

As shown in fig. 2, a cooling pipe 11 is arranged in the middle of the tank body 1, the cooling pipe 11 is positioned above the air outlet pipe 4 and below the spray pipe 6, cooling liquid is introduced into the cooling pipe 11, and the cooling pipe 11 is arranged in the tank body 1, so that the temperature of waste gas can be reduced, the excessive temperature in the tank body 1 is avoided, and the tank body 1 is kept at a proper temperature.

Example two

As shown in fig. 3, the cooling pipe 11 is a coil pipe, and the cooling pipe 11 is a spiral coil pipe with gradually decreasing diameter, and the spiral coil pipe can keep cooling of the exhaust gas in the horizontal and vertical directions.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A glycol waste gas receiving tank, comprising: tank body (1), the top of tank body (1) has blast pipe (2), be equipped with discharge valve (10) on blast pipe (2) the well lower part of tank body (1) is equipped with outlet duct (4), the one end and the intake pipe (3) of outlet duct (4) are connected, intake pipe (3) are waste gas admission pipe outlet duct (4) both sides respectively are equipped with one row of gas outlet (5) of interval uniformity upper portion in tank body (1) is equipped with shower (6), be equipped with shower (7) on shower (6), let in the mixed solution that contains the absorbent in shower (6) still be equipped with pressure sensor (8) in blast pipe (2) the bottom of tank body (1) is equipped with drain pipe (9).

2. The glycol waste gas receiving tank according to claim 1, wherein the gas outlets (5) are positioned at the lower parts of two sides of the gas outlet pipe (4), and two rows of the gas outlets (5) are arranged in a staggered manner.

3. The glycol waste gas receiving tank according to claim 1, wherein a cooling pipe (11) is arranged in the middle of the tank body (1), the cooling pipe (11) is positioned above the air outlet pipe (4) and below the spraying pipe (6), and cooling liquid is introduced into the cooling pipe (11).

4. A glycol waste gas receiving tank according to claim 3, characterized in that the cooling tube (11) is a coil.

5. A glycol waste gas receiving tank according to claim 4, characterized in that the cooling tube (11) is a spiral coil of gradually decreasing diameter.