CN-116440511-B - Evaporator pipe device

CN116440511BCN 116440511 BCN116440511 BCN 116440511BCN-116440511-B

Abstract

The invention discloses an evaporator pipeline device, which comprises a dehydration reflux input pipe and a light reflux input pipe, and further comprises an evaporator, wherein an inner treatment tank is arranged in the evaporator, the dehydration reflux input pipe and the light reflux input pipe are both communicated with the inner treatment tank of the evaporator, the bottom of the inner treatment tank of the evaporator is also communicated with a dehydration reflux output pipe and a light reflux output pipe, the dehydration reflux input pipe is used for inputting dehydration reflux substances, the light reflux output pipe is used for inputting light reflux substances, the light reflux output pipe is used for outputting the light reflux substances to a mother liquor pump and then returning to a reaction kettle, and the dehydration reflux output pipe is used for outputting the dehydration reflux substances to the mother liquor pump and then returning to the reaction kettle. The invention increases the pipelines for dewatering and refluxing to the evaporator and for dewatering and refluxing to the evaporator, and when the dilute acid pump fails, the dilute acid pump can be put into use at any time without affecting the production of acetic acid, thereby avoiding the great load reduction or stopping of the acetic acid device.

Inventors

LI GUANHUI
SUN YUDONG
LIU DUO
YAN XIAODONG
AN LIANG
ZHANG JUNLEI
JIA MINGLI

Assignees

河南顺达新能源科技有限公司

Dates

Publication Date: 20260512
Application Date: 20220107

Claims (1)

1. The evaporator pipeline device is characterized by comprising a dehydration reflux input pipe and a light reflux input pipe, and further comprising an evaporator, wherein an internal treatment tank is arranged in the evaporator, the dehydration reflux input pipe and the light reflux input pipe are both communicated with the internal treatment tank of the evaporator, a dehydration reflux output pipe and a light reflux output pipe are also communicated with the bottom of the internal treatment tank of the evaporator, the dehydration reflux input pipe is used for inputting dehydration reflux substances, the light reflux output pipe is used for inputting light reflux substances, the light reflux output pipe is used for outputting the light reflux substances to a mother liquor pump and then returning to the reaction kettle, the dehydration reflux output pipe is used for outputting the dehydration reflux substances to a mother liquor pump and then returning to the reaction kettle, the top of the evaporator is also provided with a steam reflux output pipe, a pipeline communicated with the steam reflux output pipe is also communicated with the side steam reflux input pipe of the evaporator, a pressurizing unit and a secondary heating unit are also arranged on the pipeline communicated with the steam reflux output pipe, the heat exchange unit is also arranged on the pipeline communicated with the dehydration reflux output pipe and comprises a second heat exchange cavity and a first heat exchange cavity, the dehydration reflux output pipe passes through the second heat exchange cavity and the heat exchange cavity passes through the second heat exchange cavity and the heat reflux output pipe and the light reflux output pipe and the heat exchange cavity passes through the heat exchange cavity and the heat exchange cavity; the bottom of the evaporator is communicated with a steam supplementing pipe, and the top of the evaporator is provided with an exhaust valve; the bottom of the evaporator is also provided with a decontamination pipe which is used for discharging sewage.

Description

Evaporator pipe device Technical Field The present invention relates to an evaporator tube apparatus. Background In the production process of dilute acid, materials are dehydrated and reflowed, and the light-phase materials of the layering device enter an inlet main pipe of a dilute acid pump, and the two materials are returned to the reaction kettle through the dilute acid pump, so that the effects of material circulation and system balance are achieved. When the material composition of the dehydration reflux and the layering device changes, the dilute acid pump can be caused to operate unstably to cause faults, the production is influenced, the acetic acid device can be stopped in a short period when the material composition is serious, personnel need to take a shift to repair after the faults occur, and the acetic acid device can be stopped if the faults occur. Disclosure of Invention In order to solve the technical problems, the evaporator pipeline device comprises a dehydration reflux input pipe and a light reflux input pipe, and further comprises an evaporator, wherein an internal treatment tank is arranged in the evaporator, the dehydration reflux input pipe and the light reflux input pipe are both communicated with the internal treatment tank of the evaporator, the bottom of the internal treatment tank of the evaporator is also communicated with a dehydration reflux output pipe and a light reflux output pipe, the dehydration reflux input pipe is used for inputting dehydration reflux substances, the light reflux input pipe is used for inputting light reflux substances, the light reflux output pipe is used for outputting light reflux substances to a mother liquor pump and then returning to the reaction kettle, and the dehydration reflux output pipe is used for outputting the dehydration reflux substances to the mother liquor pump and then returning to the reaction kettle. Preferably, the bottom of the evaporator is communicated with a steam supplementing pipe, and the top of the evaporator is provided with an exhaust valve. Preferably, the bottom of the evaporator is also provided with a decontamination pipe, and the decontamination pipe is used for pollution discharge. The top of the evaporator is also provided with a steam reflux output pipe, a pipeline communicated with the steam reflux output pipe is also communicated with a steam reflux input pipe at the side part of the evaporator, and a pressurizing unit and a secondary heating unit are also arranged on the pipeline communicated with the steam reflux output pipe. Preferably the pipeline that steam backward flow output tube communicates on still set up heat transfer unit, heat transfer unit including second heat transfer chamber and first heat transfer chamber, the second heat transfer chamber be used for passing the pipeline of steam backward flow output tube, first heat transfer chamber be used for passing dehydration backward flow output tube, the extension pipeline of light backward flow output tube, first heat transfer chamber and second heat transfer chamber outside still wrap up and set up heat preservation material. Compared with the prior art, the invention has the beneficial effects that the dehydration reflux material in the dehydration reflux input pipe is input, the light reflux material in the light reflux output pipe is output to the mother liquor pump and then returned to the reaction kettle, and the dehydration reflux material in the dehydration reflux output pipe is output to the mother liquor pump and then returned to the reaction kettle. The invention increases the pipelines for dewatering and refluxing to the evaporator and for dewatering and refluxing to the evaporator, and when the dilute acid pump fails, the dilute acid pump can be put into use at any time without affecting the production of acetic acid, thereby avoiding the great load reduction or stopping of the acetic acid device. The invention increases the pipelines from dehydration reflux to the evaporator and light dehydration reflux to the evaporator, and the dilute acid pump can be stopped for use in daily production, thereby prolonging the service cycle of the dilute acid pump and saving the maintenance cost. And in normal operation, the dilute acid pump is started to operate when the dilute acid pump is started and the pipeline is newly added for standby state. Drawings FIG. 1 is a schematic diagram of an embodiment of the present invention; Fig. 2 is a schematic diagram of the structure of an embodiment of the present invention. The evaporator 1, the internal treatment tank 2, the dehydration reflux input pipe 3, the light reflux output pipe 4, the exhaust valve 5, the dehydration reflux output pipe 6, the steam reflux output pipe 7, the pressurizing unit 8, the decontamination pipe 9, the secondary heating unit 10, the light reflux input pipe 11, the steam reflux input pipe 12, the steam supplementing pipe 13, the heat exchange unit 14, the first heat exchang