CN213650694U

CN213650694U - Formaldehyde holding vessel

Info

Publication number: CN213650694U
Application number: CN202022617801.6U
Authority: CN
Inventors: 张建强; 刘文刚
Original assignee: Heilongjiang Chinese Chemical Co ltd
Current assignee: Heilongjiang Chinese Chemical Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-07-09
Anticipated expiration: 2030-11-13

Abstract

The utility model belongs to the technical field of chemical production equipment, in particular to a formaldehyde storage tank, which comprises a storage tank for storing formaldehyde, wherein the top of the storage tank is provided with a ventilation transmission system, and the ventilation transmission system comprises a booster fan, a flame arrester, a breather valve and an air buffer tank; an air inlet pipe of the booster fan is communicated with an air outlet pipe of the flame arrester, the air outlet pipe of the booster fan is communicated with a recovery pipe of the recovery system, the air inlet pipe of the flame arrester is communicated with an air outlet pipe of the breather valve, the air inlet pipe of the breather valve is communicated with an air guide pipe at the lower part of the air buffer tank, and a ventilation pipe of the breather valve is communicated with the storage tank; the upper part of the air buffer tank is provided with an air inlet pipe, and the bottom of the air buffer tank is provided with a liquid discharge pipe for installing a ball valve. This formaldehyde holding vessel can carry the volatile formaldehyde in the jar to recovery unit or system in through the transmission system that takes a breath, reduces environmental pollution, has improved resource utilization, and is safe environmental protection.

Description

Formaldehyde holding vessel

The technical field is as follows:

the utility model belongs to the technical field of chemical production equipment, concretely relates to formaldehyde holding vessel.

Background art:

in the process of formaldehyde production in chemical enterprises, the formaldehyde storage tank is used for storing formaldehyde finished products, and formaldehyde in the formaldehyde storage tank is extremely easy to volatilize. The formaldehyde gas volatilized by the storage tank is discharged into the atmosphere through the breather valve, thereby not only polluting the environment, but also wasting resources. If the formaldehyde gas discharged from the top of the formaldehyde storage tank is recycled, the resource utilization rate can be improved, the environmental pollution is avoided, and the method is safe and environment-friendly. Thus, it is necessary to provide a ventilation system for transferring the volatile gas on the top of the formaldehyde storage tank. Therefore, it is necessary to design a formaldehyde storage tank with a ventilation and transmission system.

The utility model has the following contents:

the invention aims to provide a formaldehyde storage tank with an air exchange transmission system, which can convey formaldehyde volatilized in the tank to a recovery device or a system through the air exchange transmission system, reduce environmental pollution, improve the resource utilization rate, is safe and environment-friendly, has reasonable structural design, is economical and applicable, and is easy to popularize and use on a large scale.

The technical scheme adopted by the novel method is as follows: a formaldehyde storage tank comprises a storage tank for storing formaldehyde, wherein a ventilation transmission system is installed at the top of the storage tank and comprises a booster fan, a flame arrester, a breather valve and an air buffer tank; an air inlet pipe of the booster fan is communicated with an air outlet pipe of the flame arrester, the air outlet pipe of the booster fan is communicated with a recovery pipe of the recovery system, the air inlet pipe of the flame arrester is communicated with an air outlet pipe of the breather valve, the air inlet pipe of the breather valve is communicated with an air guide pipe at the lower part of the air buffer tank, and a ventilation pipe of the breather valve is communicated with the storage tank; the upper part of the air buffer tank is provided with an air inlet pipe, and the bottom of the air buffer tank is provided with a liquid discharge pipe for installing a ball valve.

Further, a bag type air filter is mounted on the air inlet pipe.

This neotype beneficial effect: the utility model provides a formaldehyde holding vessel that is equipped with transmission system of taking a breath, this formaldehyde holding vessel can carry the volatile formaldehyde in the jar to recovery unit or system through transmission system of taking a breath, reduces environmental pollution, has improved resource utilization, and safety ring protects, and structural design is reasonable, and economy is suitable for, easily promotes on a large scale and uses.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a schematic view of a ventilation delivery system according to an embodiment;

FIG. 3 is a schematic structural view of the second embodiment;

FIG. 4 is a schematic structural view of the third embodiment;

FIG. 5 is a schematic structural view of the fourth embodiment;

FIG. 6 is a schematic structural diagram of the fifth embodiment.

The specific implementation mode is as follows:

example one

Referring to fig. 1 and 2, a formaldehyde storage tank comprises a storage tank for storing formaldehyde, wherein a ventilation and transmission system 1 is installed at the top of the storage tank, and the ventilation and transmission system 1 comprises a booster fan 11, a flame arrester 12, a breather valve 13 and an air buffer tank 15; an air inlet pipe of the booster fan 11 is communicated with an air outlet pipe of the flame arrester 12, the air outlet pipe of the booster fan 11 is communicated with a recovery pipe of a recovery system, the air inlet pipe of the flame arrester 12 is communicated with an air outlet pipe of the breather valve 13, the air inlet pipe of the breather valve 13 is communicated with an air duct 14 at the lower part of the air buffer tank 15, and a ventilation pipe of the breather valve 13 is communicated with a storage tank; an air inlet pipe 16 is arranged at the upper part of the air buffer tank 15, and a liquid discharge pipe for mounting a ball valve is arranged at the bottom of the air buffer tank.

After formaldehyde in the formaldehyde holding vessel volatilizees, volatile formaldehyde takes a breath through the breather valve, and rethread breather valve takes a breath after the air gets into the buffering in the air buffer tank by the air intake pipe, can condense into the drop of water after moist air gets into the buffer tank, and the ponding after the buffering of condensing for a long time can be discharged through the fluid-discharge tube of its bottom. The volatilized formaldehyde is conveyed out to a recovery system or recovery equipment by a booster fan after passing through a flame arrester through an air outlet pipe of the breather valve. When equipment such as fan circuit trouble appears, the spark arrester can avoid the emergence of tempering, safe and reliable.

The breather valve is preferably a breather valve with an air inlet and an air outlet connecting port produced by Zhejiang san jing valves, Sichuan Ringda mechanical equipment, Zhejiang Taiou valves, Yongjia three-department valves, Shanghai Biang valves and Zhejiang Xuan valves. The booster fan is preferably a booster fan or a high-pressure fan produced by Shanghai full-wind environmental protection science and technology, Inc., Wilma electromechanical, Inc., Guangzhou, and Wankang environmental protection science and technology, Inc., Shanghai. The flame arrestors are preferably flame arrestors produced by Stannumless Tianou petrochemical plant manufacturing, Shanghai Zhenghe Pump valve manufacturing, Shanghai Gaohanshi petrochemical plant manufacturing, Nanjing Zhuozi petrochemical plant manufacturing, and Shanghai Nanhai Stone storage tank facility technology, Inc. The storage tank is preferably a formaldehyde storage tank produced by Shandong province Soviet Engineer installation Limited, Jining City Xingheng machinery Equipment Limited, Hebeihuiwei environmental protection Equipment Limited, Beijing Shingwei chemical engineering Limited, and Jining geodetic engineering installation Limited.

Example two

Referring to fig. 3, in addition to the first embodiment, a bag type air filter 19 is attached to the air intake pipe 16. Used for filtering and dedusting the air entering the air buffer tank. The bag type air dust removing filter is preferably an air dust removing filter produced by Ming blue industry Co., Ltd, Guan county Tai Tae filter manufacturing Co., Ltd, future filter system Co., Ltd, Haxing purification equipment Co., Ltd, Kunshan and Zike purification equipment Co., Ltd, Tex.

EXAMPLE III

Referring to fig. 4, on the basis of the technical scheme of the first embodiment, an air buffer tank 15 is arranged in a heat-preserving tank 18, and paraffin 17 is arranged in a ring cavity between the heat-preserving tank 18 and the air buffer tank 15. The heat preservation tank can heat up outside cold air and then enter the formaldehyde storage tank, and the heated replacement air can improve the continuity of ventilation and conveying.

Example four

Referring to fig. 5, on the basis of the third embodiment, the top of the thermal insulation can 18 is coated with a black paint layer 20, and a foam thermal insulation layer 21 is arranged outside the thermal insulation can. The black paint is convenient for absorb heat, and the foam heat-insulating layer can reduce the heat exchange between the heat-insulating tank and the outside.

EXAMPLE five

Referring to fig. 6, on the basis of the third embodiment, paraffin for phase change heat preservation is replaced by circulating hot tail gas, and the air is heated by injecting the circulating hot tail gas into the annular cavities of the heat preservation tank and the air buffer tank. The bottom and the opposite top of the heat preservation tank are respectively provided with a heat inlet pipe 24 and a heat outlet pipe 22, the ring cavities of the heat preservation tank and the air buffer tank are internally provided with 4 ring-shaped clapboards 23, and the ring-shaped clapboard at the bottommost layer opposite to the heat inlet pipe 24 is provided with an air hole 25, namely one side far away from the heat inlet pipe; the upper separator plate opposite to the air hole of the lowest separator plate is provided with another air hole 25, the upper separator plate opposite to the air hole of the separator plate is provided with an air hole, and the uppermost separator plate opposite to the air hole of the upper separator plate is provided with an air hole. The hot gas enters from the heat inlet pipe and is discharged from the heat outlet pipe, so that the heat exchange of the air in the air buffer tank is realized, and the hot tail gas can use the waste gas with heat generated in the system.

Claims

1. The utility model provides a formaldehyde holding vessel, includes the holding vessel that is used for storing formaldehyde, its characterized in that: the top of the storage tank is provided with a ventilation transmission system (1), and the ventilation transmission system (1) comprises a booster fan (11), a flame arrester (12), a breather valve (13) and an air buffer tank (15); an air inlet pipe of the booster fan (11) is communicated with an air outlet pipe of the flame arrester (12), the air outlet pipe of the booster fan (11) is communicated with a recovery pipe of a recovery system, the air inlet pipe of the flame arrester (12) is communicated with an air outlet pipe of the breather valve (13), the air inlet pipe of the breather valve (13) is communicated with an air guide pipe (14) at the lower part of the air buffer tank (15), and an air exchange pipe of the breather valve (13) is communicated with a storage tank; an air inlet pipe (16) is arranged at the upper part of the air buffer tank (15), and a liquid discharge pipe for mounting a ball valve is arranged at the bottom of the air buffer tank.

2. The formaldehyde storage tank of claim 1, wherein: and a bag type air filter (19) is arranged on the air inlet pipe (16).