CN216591073U - Olefin separation methanol returning system - Google Patents
Olefin separation methanol returning system Download PDFInfo
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- CN216591073U CN216591073U CN202122680232.4U CN202122680232U CN216591073U CN 216591073 U CN216591073 U CN 216591073U CN 202122680232 U CN202122680232 U CN 202122680232U CN 216591073 U CN216591073 U CN 216591073U
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- heater
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 643
- 150000001336 alkenes Chemical class 0.000 title claims abstract description 32
- 238000000926 separation method Methods 0.000 title claims abstract description 32
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000005977 Ethylene Substances 0.000 claims abstract description 181
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 180
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 170
- 239000006200 vaporizer Substances 0.000 claims abstract description 112
- 238000002347 injection Methods 0.000 claims abstract description 50
- 239000007924 injection Substances 0.000 claims abstract description 50
- 238000004064 recycling Methods 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims description 17
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 79
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 238000007670 refining Methods 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses an olefin separation methanol returning system which comprises an ethylene accident vaporizer, an unqualified ethylene recycling heater, a cold torch heater and a methanol injection system, wherein the ethylene accident vaporizer is connected with a tank area refined methanol tank through a pipeline, the unqualified ethylene recycling heater is connected to a pipeline section between the ethylene accident vaporizer and the tank area refined methanol tank, the cold torch heater is connected to a pipeline section between the ethylene accident vaporizer and the tank area refined methanol tank through a pipeline, a nitrogen pouring port is connected to the ethylene accident vaporizer through a pipeline, and the methanol injection system is connected to a pipeline section between the ethylene accident vaporizer and the tank area refined methanol tank through a pipeline. The utility model not only ensures the heating effect of the cold torch when the vehicle is stopped, but also safely recovers all methanol in the device.
Description
Technical Field
The utility model relates to a methanol returning system for olefin separation, belonging to the technical field of chemical industry.
Background
The olefin separation device comprises a methanol injection system and three methanol heat exchangers, wherein the three methanol heat exchangers comprise an ethylene accident vaporizer, an unqualified ethylene recycle heater and a cold flame torch heater; under normal working conditions, the methanol injection system is not put into use, so that a large amount of methanol is always prepared in the methanol injection system; because the olefin separation device is not provided with a methanol return recovery pipeline, the methanol can only be loaded on site or burned by a torch for each overhaul, thereby causing the waste of methanol.
Disclosure of Invention
The utility model aims to provide a methanol separation and material returning system for olefin, which not only ensures the heating effect of a cold torch during parking, but also safely recovers all methanol in the device.
In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an alkene separation methyl alcohol material returned system, includes ethylene accident vaporizer, unqualified ethylene refining heater, cold flame torch heater and methyl alcohol injection system, ethylene accident vaporizer pipe connection has the smart methyl alcohol jar in jar district, unqualified ethylene refining heater pipe connection is on the pipeline section between ethylene accident vaporizer and the smart methyl alcohol jar in jar district, cold flame torch heater pipe connection is on the pipeline section between ethylene accident vaporizer and the smart methyl alcohol jar in jar district, and pipe connection has nitrogen gas to flow back and drenches the mouth on the ethylene accident vaporizer, methyl alcohol injection system pipe connection is on the pipeline section between ethylene accident vaporizer and the smart methyl alcohol jar in jar district.
According to the olefin separation methanol material returning system, the pipeline A is arranged on the pipeline section between the ethylene accident vaporizer and the nitrogen pouring and spraying port, the inlet end of the pipeline A is connected to the pipeline section between the ethylene accident vaporizer and the nitrogen pouring and spraying port, the outlet end of the pipeline A is connected with the torch system, and the pipeline A is provided with the safety valve.
According to the olefin separation methanol returning system, the pipeline on the unqualified ethylene recycling heater is connected with the nitrogen pouring port, the pipeline B is arranged on the pipeline section between the unqualified ethylene recycling heater and the nitrogen pouring port, the inlet end of the pipeline B is connected with the pipeline section between the unqualified ethylene recycling heater and the nitrogen pouring port, the outlet end of the pipeline B is connected with the torch system, and the pipeline B is provided with the safety valve.
According to the olefin separation methanol material returning system, the pipeline on the cold torch heater is connected with the nitrogen pouring and spraying port, the pipeline section between the cold torch heater and the nitrogen pouring and spraying port is provided with the C pipeline, the inlet end of the C pipeline is connected with the pipeline section between the cold torch heater and the nitrogen pouring and spraying port, the outlet end of the C pipeline is connected with the torch system, and the C pipeline is provided with the safety valve.
In the olefin separation methanol returning system, the pipe section between the ethylene accident vaporizer and the tank area fine methanol tank is a D pipeline, the D pipeline is sequentially provided with the valve A and the valve B, the C valve, methyl alcohol delivery pump and D valve, the one end that is close to ethylene accident vaporizer is arranged in to A valve, be provided with the E pipeline on the pipeline section between B valve and the C valve, the pipeline section between B valve and C valve is all connected at the both ends of E pipeline, be provided with the E valve on the E pipeline, be provided with the F pipeline on the pipeline section between C valve and the methyl alcohol delivery pump, the pipeline section between C valve and methyl alcohol delivery pump is all connected at the both ends of F pipeline, be provided with the F valve on the F pipeline, pipeline connection has the unqualified methyl alcohol jar in tank field underground on the methyl alcohol delivery pump, G valve and H valve have set gradually on the pipeline section between methyl alcohol delivery pump and the unqualified methyl alcohol jar in tank field underground.
The olefin separation methanol material returning system is characterized in that a G pipeline is connected to the unqualified ethylene recycling heater, one end of the G pipeline is connected with the unqualified ethylene recycling heater, the other end of the G pipeline is connected to a pipe section between the B valve and the E pipeline, an I valve and a J valve are arranged on the G pipeline, an H pipeline is connected to the cold flame torch heater, one end of the H pipeline is connected with the cold flame torch heater, the other end of the H pipeline is connected to the G pipeline, and a K valve and an L valve are arranged on the H pipeline.
The utility model provides an aforesaid olefin separation methyl alcohol material returned system, be provided with I pipeline and J pipeline on the methyl alcohol injection system, the one end and the methyl alcohol injection system of I pipeline are connected, and the other end of I pipeline is connected on the pipeline section between G pipeline and E pipeline, sets up the M valve on the I pipeline, has set gradually methyl alcohol filling pump and N valve on the J pipeline, and the exit end of J pipeline is provided with the methyl alcohol user.
According to the olefin separation methanol material returning system, the K pipeline is arranged between the H pipeline and the J pipeline, one end of the K pipeline is connected to the pipe section between the K valve and the L valve, and the other end of the K pipeline is connected to the pipe section between the methanol injection pump and the N valve.
Compared with the prior art, the connecting pipeline of the nitrogen back-pouring port is added, so that the nitrogen can reversely pressurize the ethylene accident vaporizer, the unqualified ethylene back-smelting heater and the cold torch heater conveniently, and methanol in the ethylene accident vaporizer, the unqualified ethylene back-smelting heater and the cold torch heater is all reversely pressed into an underground unqualified methanol tank in the tank area, so that the effect of closed recovery of methanol is realized; a K pipeline is additionally arranged between the methanol injection system and the cold torch heater, and a channel between the methanol injection system and the cold torch heater is opened, so that the heating effect of the cold torch heater during shutdown is ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Reference numerals: 1-ethylene accident vaporizer, 2-unqualified ethylene recycle heater, 3-cold torch heater, 4-methanol injection system, 5-tank area refined methanol tank, 6-nitrogen pouring port, 7-A pipeline, 8-torch system, 9-safety valve, 10-B pipeline, 11-C pipeline, 12-D pipeline, 13-A valve, 14-B valve, 15-C valve, 16-methanol feeding pump, 17-D valve, 18-E pipeline, 19-E valve, 20-F pipeline, 21-F valve, 22-tank area unqualified underground methanol tank, 23-G valve, 24-H valve, 25-G pipeline, 26-I valve, 27-J valve, 28-H pipeline, 29-K valve, 30-L valve, 31-I pipeline, 32-J pipeline, 33-M valve, 34-methanol injection pump, 35-N valve, 36-methanol user and 37-K pipeline.
The utility model is further described with reference to the following figures and detailed description.
Detailed Description
Example 1 of the utility model: the utility model provides an olefin separation methyl alcohol material returned system, includes ethylene accident vaporizer 1, unqualified ethylene refining heater 2, cold flame heater 3 and methyl alcohol injection system 4, 1 pipe connection of ethylene accident vaporizer has tank field smart methyl alcohol jar 5, 2 pipe connections of unqualified ethylene refining heater are on the pipeline section between ethylene accident vaporizer 1 and tank field smart methyl alcohol jar 5, 3 pipe connections of cold flame heater are on the pipeline section between ethylene accident vaporizer 1 and tank field smart methyl alcohol jar 5, and 1 pipe connection has nitrogen gas to drench mouthful 6 on the ethylene accident vaporizer, 4 pipe connections of methyl alcohol injection system are on the pipeline section between ethylene accident vaporizer 1 and tank field smart methyl alcohol jar 5.
Example 2 of the utility model: an olefin separation methanol return system comprises an ethylene accident vaporizer 1, an unqualified ethylene recycle heater 2, a cold flame heater 3 and a methanol injection system 4, wherein the ethylene accident vaporizer 1 is connected with a tank area refined methanol tank 5 through a pipeline, the unqualified ethylene recycle heater 2 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, the cold flame heater 3 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, a nitrogen pouring port 6 is connected to a pipeline section on the ethylene accident vaporizer 1, and the methanol injection system 4 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline; the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6 is provided with an A pipeline 7, the inlet end of the A pipeline 7 is connected with the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6, the outlet end of the A pipeline 7 is connected with a torch system 8, and the A pipeline 7 is provided with a safety valve 9.
Example 3 of the utility model: an olefin separation methanol return system comprises an ethylene accident vaporizer 1, an unqualified ethylene recycle heater 2, a cold flame heater 3 and a methanol injection system 4, wherein the ethylene accident vaporizer 1 is connected with a tank area refined methanol tank 5 through a pipeline, the unqualified ethylene recycle heater 2 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, the cold flame heater 3 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, a nitrogen pouring port 6 is connected to a pipeline section on the ethylene accident vaporizer 1, and the methanol injection system 4 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline; the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6 is provided with an A pipeline 7, the inlet end of the A pipeline 7 is connected with the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6, the outlet end of the A pipeline 7 is connected with a torch system 8, and the A pipeline 7 is provided with a safety valve 9; the pipeline on the unqualified ethylene recycling heater 2 is connected with a nitrogen pouring and sprinkling port 6, a B pipeline 10 is arranged on a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the inlet end of the B pipeline 10 is connected with a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the outlet end of the B pipeline 10 is connected with a torch system 8, and a safety valve 9 is arranged on the B pipeline 10.
Example 4 of the utility model: an olefin separation methanol return system comprises an ethylene accident vaporizer 1, an unqualified ethylene recycle heater 2, a cold flame heater 3 and a methanol injection system 4, wherein the ethylene accident vaporizer 1 is connected with a tank area refined methanol tank 5 through a pipeline, the unqualified ethylene recycle heater 2 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, the cold flame heater 3 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, a nitrogen pouring port 6 is connected to a pipeline section on the ethylene accident vaporizer 1, and the methanol injection system 4 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline; the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6 is provided with an A pipeline 7, the inlet end of the A pipeline 7 is connected with the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6, the outlet end of the A pipeline 7 is connected with a torch system 8, and the A pipeline 7 is provided with a safety valve 9; the pipeline on the unqualified ethylene recycling heater 2 is connected with a nitrogen pouring and sprinkling port 6, a pipeline B10 is arranged on a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the inlet end of the pipeline B10 is connected with a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the outlet end of the pipeline B10 is connected with a torch system 8, and the pipeline B10 is provided with a safety valve 9; the pipeline on the cold torch heater 3 is connected with a nitrogen pouring and sprinkling port 6, a C pipeline 11 is arranged on a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the inlet end of the C pipeline 11 is connected with a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the outlet end of the C pipeline 11 is connected with a torch system 8, and a safety valve 9 is arranged on the C pipeline 11.
Example 5 of the utility model: an olefin separation methanol return system comprises an ethylene accident vaporizer 1, an unqualified ethylene recycle heater 2, a cold flame heater 3 and a methanol injection system 4, wherein the ethylene accident vaporizer 1 is connected with a tank area refined methanol tank 5 through a pipeline, the unqualified ethylene recycle heater 2 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, the cold flame heater 3 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, a nitrogen pouring port 6 is connected to a pipeline section on the ethylene accident vaporizer 1, and the methanol injection system 4 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline; the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6 is provided with an A pipeline 7, the inlet end of the A pipeline 7 is connected with the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6, the outlet end of the A pipeline 7 is connected with a torch system 8, and the A pipeline 7 is provided with a safety valve 9; the pipeline on the unqualified ethylene recycling heater 2 is connected with a nitrogen pouring and sprinkling port 6, a pipeline B10 is arranged on a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the inlet end of the pipeline B10 is connected with a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the outlet end of the pipeline B10 is connected with a torch system 8, and the pipeline B10 is provided with a safety valve 9; the upper pipeline of the cold torch heater 3 is connected with a nitrogen pouring and sprinkling port 6, a C pipeline 11 is arranged on a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the inlet end of the C pipeline 11 is connected with a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the outlet end of the C pipeline 11 is connected with a torch system 8, and a safety valve 9 is arranged on the C pipeline 11; the pipe section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 is a D pipeline 12, the D pipeline 12 is sequentially provided with an A valve 13 and a B valve 14, the system comprises a C valve 15, a methanol feed pump 16 and a D valve 17, wherein a valve 13 is arranged at one end close to an ethylene accident vaporizer 1, a pipe section between the B valve 14 and the C valve 15 is provided with an E pipeline 18, two ends of the E pipeline 18 are connected with the pipe section between the B valve 14 and the C valve 15, the E pipeline 18 is provided with an E valve 19, a pipe section between the C valve 15 and the methanol feed pump 16 is provided with an F pipeline 20, two ends of the F pipeline 20 are connected with the pipe section between the C valve 15 and the methanol feed pump 16, the F pipeline 20 is provided with an F valve 21, a pipeline on the methanol feed pump 16 is connected with a tank area underground unqualified methanol tank 22, and a pipe section between the methanol feed pump 16 and the tank area underground unqualified methanol tank 22 is sequentially provided with a G valve 23 and an H valve 24.
Example 6 of the utility model: an olefin separation methanol return system comprises an ethylene accident vaporizer 1, an unqualified ethylene recycle heater 2, a cold flame heater 3 and a methanol injection system 4, wherein the ethylene accident vaporizer 1 is connected with a tank area refined methanol tank 5 through a pipeline, the unqualified ethylene recycle heater 2 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, the cold flame heater 3 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, a nitrogen pouring port 6 is connected to a pipeline section on the ethylene accident vaporizer 1, and the methanol injection system 4 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline; the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6 is provided with an A pipeline 7, the inlet end of the A pipeline 7 is connected with the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6, the outlet end of the A pipeline 7 is connected with a torch system 8, and the A pipeline 7 is provided with a safety valve 9; the pipeline on the unqualified ethylene recycling heater 2 is connected with a nitrogen pouring and sprinkling port 6, a pipeline B10 is arranged on a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the inlet end of the pipeline B10 is connected with a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the outlet end of the pipeline B10 is connected with a torch system 8, and the pipeline B10 is provided with a safety valve 9; the upper pipeline of the cold torch heater 3 is connected with a nitrogen pouring and sprinkling port 6, a C pipeline 11 is arranged on a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the inlet end of the C pipeline 11 is connected with a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the outlet end of the C pipeline 11 is connected with a torch system 8, and a safety valve 9 is arranged on the C pipeline 11; the pipe section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 is a D pipeline 12, the D pipeline 12 is sequentially provided with an A valve 13 and a B valve 14, the system comprises a C valve 15, a methanol feed pump 16 and a D valve 17, wherein a valve 13 is arranged at one end close to an ethylene accident vaporizer 1, a pipe section between the B valve 14 and the C valve 15 is provided with an E pipeline 18, two ends of the E pipeline 18 are connected with the pipe section between the B valve 14 and the C valve 15, the E pipeline 18 is provided with an E valve 19, a pipe section between the C valve 15 and the methanol feed pump 16 is provided with an F pipeline 20, two ends of the F pipeline 20 are connected with the pipe section between the C valve 15 and the methanol feed pump 16, the F pipeline 20 is provided with an F valve 21, a pipeline on the methanol feed pump 16 is connected with a tank area underground unqualified methanol tank 22, and a pipe section between the methanol feed pump 16 and the tank area underground unqualified methanol tank 22 is sequentially provided with a G valve 23 and an H valve 24; the off-specification ethylene recycling heater 2 is connected with a G pipeline 25, one end of the G pipeline 25 is connected with the off-specification ethylene recycling heater 2, the other end of the G pipeline 25 is connected to a pipe section between the B valve 14 and the E pipeline 18, the G pipeline 25 is provided with an I valve 26 and a J valve 27, the cold flame torch heater 3 is connected with an H pipeline 28, one end of the H pipeline 28 is connected with the cold flame torch heater 3, the other end of the H pipeline 28 is connected to the G pipeline 25, and the H pipeline 28 is provided with a K valve 29 and an L valve 30.
Example 7 of the utility model: an olefin separation methanol return system comprises an ethylene accident vaporizer 1, an unqualified ethylene recycle heater 2, a cold flame heater 3 and a methanol injection system 4, wherein the ethylene accident vaporizer 1 is connected with a tank area refined methanol tank 5 through a pipeline, the unqualified ethylene recycle heater 2 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, the cold flame heater 3 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, a nitrogen pouring port 6 is connected to a pipeline section on the ethylene accident vaporizer 1, and the methanol injection system 4 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline; the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6 is provided with an A pipeline 7, the inlet end of the A pipeline 7 is connected with the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6, the outlet end of the A pipeline 7 is connected with a torch system 8, and the A pipeline 7 is provided with a safety valve 9; the pipeline on the unqualified ethylene recycling heater 2 is connected with a nitrogen pouring and sprinkling port 6, a pipeline B10 is arranged on a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the inlet end of the pipeline B10 is connected with a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the outlet end of the pipeline B10 is connected with a torch system 8, and the pipeline B10 is provided with a safety valve 9; the upper pipeline of the cold torch heater 3 is connected with a nitrogen pouring and sprinkling port 6, a C pipeline 11 is arranged on a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the inlet end of the C pipeline 11 is connected with a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the outlet end of the C pipeline 11 is connected with a torch system 8, and a safety valve 9 is arranged on the C pipeline 11; the pipe section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 is a D pipeline 12, the D pipeline 12 is sequentially provided with an A valve 13 and a B valve 14, the system comprises a C valve 15, a methanol feed pump 16 and a D valve 17, wherein a valve 13 is arranged at one end close to an ethylene accident vaporizer 1, a pipe section between the B valve 14 and the C valve 15 is provided with an E pipeline 18, two ends of the E pipeline 18 are connected with the pipe section between the B valve 14 and the C valve 15, the E pipeline 18 is provided with an E valve 19, a pipe section between the C valve 15 and the methanol feed pump 16 is provided with an F pipeline 20, two ends of the F pipeline 20 are connected with the pipe section between the C valve 15 and the methanol feed pump 16, the F pipeline 20 is provided with an F valve 21, a pipeline on the methanol feed pump 16 is connected with a tank area underground unqualified methanol tank 22, and a pipe section between the methanol feed pump 16 and the tank area underground unqualified methanol tank 22 is sequentially provided with a G valve 23 and an H valve 24; the unqualified ethylene recycling heater 2 is connected with a G pipeline 25, one end of the G pipeline 25 is connected with the unqualified ethylene recycling heater 2, the other end of the G pipeline 25 is connected with a pipe section between the B valve 14 and the E pipeline 18, the G pipeline 25 is provided with an I valve 26 and a J valve 27, the cold flame torch heater 3 is connected with an H pipeline 28, one end of the H pipeline 28 is connected with the cold flame torch heater 3, the other end of the H pipeline 28 is connected with the G pipeline 25, and the H pipeline 28 is provided with a K valve 29 and an L valve 30; be provided with I pipeline 31 and J pipeline 32 on methyl alcohol injection system 4, the one end and the methyl alcohol injection system 4 of I pipeline 31 are connected, and the other end of I pipeline 31 is connected on the pipe section between G pipeline 25 and E pipeline 18, sets up M valve 33 on the I pipeline 31, has set gradually methyl alcohol filling pump 34 and N valve 35 on the J pipeline 32, and the exit end of J pipeline 32 is provided with methyl alcohol user 36.
Example 8 of the utility model: an olefin separation methanol return system comprises an ethylene accident vaporizer 1, an unqualified ethylene recycle heater 2, a cold flame heater 3 and a methanol injection system 4, wherein the ethylene accident vaporizer 1 is connected with a tank area refined methanol tank 5 through a pipeline, the unqualified ethylene recycle heater 2 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, the cold flame heater 3 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, a nitrogen pouring port 6 is connected to a pipeline section on the ethylene accident vaporizer 1, and the methanol injection system 4 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline; the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6 is provided with an A pipeline 7, the inlet end of the A pipeline 7 is connected with the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6, the outlet end of the A pipeline 7 is connected with a torch system 8, and the A pipeline 7 is provided with a safety valve 9; the pipeline on the unqualified ethylene recycling heater 2 is connected with a nitrogen pouring and sprinkling port 6, a pipeline B10 is arranged on a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the inlet end of the pipeline B10 is connected with a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the outlet end of the pipeline B10 is connected with a torch system 8, and the pipeline B10 is provided with a safety valve 9; the upper pipeline of the cold torch heater 3 is connected with a nitrogen pouring and sprinkling port 6, a C pipeline 11 is arranged on a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the inlet end of the C pipeline 11 is connected with a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the outlet end of the C pipeline 11 is connected with a torch system 8, and a safety valve 9 is arranged on the C pipeline 11; the pipe section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 is a D pipeline 12, the D pipeline 12 is sequentially provided with an A valve 13 and a B valve 14, the system comprises a C valve 15, a methanol feed pump 16 and a D valve 17, wherein a valve 13 is arranged at one end close to an ethylene accident vaporizer 1, a pipe section between the B valve 14 and the C valve 15 is provided with an E pipeline 18, two ends of the E pipeline 18 are connected with the pipe section between the B valve 14 and the C valve 15, the E pipeline 18 is provided with an E valve 19, a pipe section between the C valve 15 and the methanol feed pump 16 is provided with an F pipeline 20, two ends of the F pipeline 20 are connected with the pipe section between the C valve 15 and the methanol feed pump 16, the F pipeline 20 is provided with an F valve 21, a pipeline on the methanol feed pump 16 is connected with a tank area underground unqualified methanol tank 22, and a pipe section between the methanol feed pump 16 and the tank area underground unqualified methanol tank 22 is sequentially provided with a G valve 23 and an H valve 24; the unqualified ethylene recycling heater 2 is connected with a G pipeline 25, one end of the G pipeline 25 is connected with the unqualified ethylene recycling heater 2, the other end of the G pipeline 25 is connected with a pipe section between the B valve 14 and the E pipeline 18, the G pipeline 25 is provided with an I valve 26 and a J valve 27, the cold flame torch heater 3 is connected with an H pipeline 28, one end of the H pipeline 28 is connected with the cold flame torch heater 3, the other end of the H pipeline 28 is connected with the G pipeline 25, and the H pipeline 28 is provided with a K valve 29 and an L valve 30; the methanol injection system 4 is provided with an I pipeline 31 and a J pipeline 32, one end of the I pipeline 31 is connected with the methanol injection system 4, the other end of the I pipeline 31 is connected to a pipe section between the G pipeline 25 and the E pipeline 18, the I pipeline 31 is provided with an M valve 33, the J pipeline 32 is sequentially provided with a methanol injection pump 34 and an N valve 35, and the outlet end of the J pipeline 32 is provided with a methanol user 36; a K pipeline 37 is arranged between the H pipeline 28 and the J pipeline 32, one end of the K pipeline 37 is connected to a pipe section between the K valve 29 and the L valve 30, and the other end of the K pipeline 37 is connected to a pipe section between the methanol injection pump 34 and the N valve 35.
Example 9 of the utility model: an olefin separation methanol return system comprises an ethylene accident vaporizer 1, an unqualified ethylene recycle heater 2, a cold flame heater 3 and a methanol injection system 4, wherein the ethylene accident vaporizer 1 is connected with a tank area refined methanol tank 5 through a pipeline, the unqualified ethylene recycle heater 2 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, the cold flame heater 3 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline, a nitrogen pouring port 6 is connected to a pipeline section on the ethylene accident vaporizer 1, and the methanol injection system 4 is connected to a pipeline section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 through a pipeline; the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6 is provided with an A pipeline 7, the inlet end of the A pipeline 7 is connected with the pipeline section between the ethylene accident vaporizer 1 and the nitrogen pouring and sprinkling port 6, the outlet end of the A pipeline 7 is connected with a torch system 8, and the A pipeline 7 is provided with a safety valve 9; the pipeline on the unqualified ethylene recycling heater 2 is connected with a nitrogen pouring and sprinkling port 6, a pipeline B10 is arranged on a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the inlet end of the pipeline B10 is connected with a pipeline section between the unqualified ethylene recycling heater 2 and the nitrogen pouring and sprinkling port 6, the outlet end of the pipeline B10 is connected with a torch system 8, and the pipeline B10 is provided with a safety valve 9; the upper pipeline of the cold torch heater 3 is connected with a nitrogen pouring and sprinkling port 6, a C pipeline 11 is arranged on a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the inlet end of the C pipeline 11 is connected with a pipeline section between the cold torch heater 3 and the nitrogen pouring and sprinkling port 6, the outlet end of the C pipeline 11 is connected with a torch system 8, and a safety valve 9 is arranged on the C pipeline 11; the pipe section between the ethylene accident vaporizer 1 and the tank area refined methanol tank 5 is a D pipeline 12, the D pipeline 12 is sequentially provided with an A valve 13 and a B valve 14, the system comprises a C valve 15, a methanol feed pump 16 and a D valve 17, wherein a valve 13 is arranged at one end close to an ethylene accident vaporizer 1, a pipe section between the B valve 14 and the C valve 15 is provided with an E pipeline 18, two ends of the E pipeline 18 are connected with the pipe section between the B valve 14 and the C valve 15, the E pipeline 18 is provided with an E valve 19, a pipe section between the C valve 15 and the methanol feed pump 16 is provided with an F pipeline 20, two ends of the F pipeline 20 are connected with the pipe section between the C valve 15 and the methanol feed pump 16, the F pipeline 20 is provided with an F valve 21, a pipeline on the methanol feed pump 16 is connected with a tank area underground unqualified methanol tank 22, and a pipe section between the methanol feed pump 16 and the tank area underground unqualified methanol tank 22 is sequentially provided with a G valve 23 and an H valve 24; the unqualified ethylene recycling heater 2 is connected with a G pipeline 25, one end of the G pipeline 25 is connected with the unqualified ethylene recycling heater 2, the other end of the G pipeline 25 is connected with a pipe section between the B valve 14 and the E pipeline 18, the G pipeline 25 is provided with an I valve 26 and a J valve 27, the cold flame torch heater 3 is connected with an H pipeline 28, one end of the H pipeline 28 is connected with the cold flame torch heater 3, the other end of the H pipeline 28 is connected with the G pipeline 25, and the H pipeline 28 is provided with a K valve 29 and an L valve 30; the methanol injection system 4 is provided with an I pipeline 31 and a J pipeline 32, one end of the I pipeline 31 is connected with the methanol injection system 4, the other end of the I pipeline 31 is connected to a pipe section between the G pipeline 25 and the E pipeline 18, the I pipeline 31 is provided with an M valve 33, the J pipeline 32 is sequentially provided with a methanol injection pump 34 and an N valve 35, and the outlet end of the J pipeline 32 is provided with a methanol user 36; a K pipeline 37 is arranged between the H pipeline 28 and the J pipeline 32, the K pipeline 37 is a hose, one end of the K pipeline 37 is connected to the pipe section between the K valve 29 and the L valve 30, and the other end of the K pipeline 37 is connected to the pipe section between the methanol injection pump 34 and the N valve 35.
The working principle of one embodiment of the utility model is as follows: when the device works, the methanol injection pump 34 and the K valve 29 are sequentially opened, so that methanol in the methanol injection system 4 is injected into the cold torch heater 3 through the J pipeline 32 and the K pipeline 37, and the heating effect of the cold torch heater 3 during shutdown is ensured; then the methanol feeding pump 16, the C valve 15 and the F valve 21 are sequentially opened, the D valve 17 is closed, and the G valve 23 and the H valve 24 are opened; then opening the E valve 19, and then sequentially opening the A valve 13, the B valve 14, the I valve 26, the J valve 27, the K valve 29 and the L valve 30; the nitrogen inverted spraying port 6 enables nitrogen to enter the ethylene accident vaporizer 1 through the pipeline A7 for pressurization treatment, methanol in the ethylene accident vaporizer 1 is inverted and pressed into the pipeline D12, and then the methanol enters the underground unqualified methanol tank 22 of the tank area through the pipeline F20 for recovery treatment; the nitrogen gas pouring port 6 leads nitrogen gas to enter the unqualified ethylene recycling heater 2 through the pipeline B10 for pressurization treatment, and leads methanol in the unqualified ethylene recycling heater 2 to be poured and pressed into the pipeline G25, then sequentially passes through the pipeline D12 and the pipeline F20, and then enters the underground unqualified methanol tank 22 of the tank area for recovery treatment; the nitrogen pouring port 6 leads nitrogen to enter the cold torch heater 3 through the C pipeline 11 for pressurization treatment, and leads methanol in the cold torch heater 3 to be poured and pressed into the H pipeline 28, then sequentially leads the methanol to pass through the G pipeline 25, the D pipeline 12 and the F pipeline 20, and then leads the methanol to enter the underground unqualified methanol tank 22 of the tank field for recovery treatment.
Claims (8)
1. The utility model provides an olefin separation methyl alcohol material returned system, includes ethylene accident vaporizer (1), unqualified ethylene recycles heater (2), cold torch heater (3) and methyl alcohol injection system (4), its characterized in that, ethylene accident vaporizer (1) pipe connection has tank field smart methyl alcohol jar (5), unqualified ethylene recycles heater (2) pipe connection on the pipeline section between ethylene accident vaporizer (1) and tank field smart methyl alcohol jar (5), cold torch heater (3) pipe connection is on the pipeline section between ethylene accident vaporizer (1) and tank field smart methyl alcohol jar (5), and the pipe connection has nitrogen gas to flow over mouthful (6) on ethylene accident vaporizer (1), methyl alcohol injection system (4) pipe connection is on the pipeline section between ethylene accident vaporizer (1) and tank field smart methyl alcohol jar (5).
2. The olefin separation methanol material returning system according to claim 1, wherein an A pipeline (7) is arranged on a pipeline section between the ethylene accident vaporizer (1) and the nitrogen gas pouring port (6), the inlet end of the A pipeline (7) is connected to the pipeline section between the ethylene accident vaporizer (1) and the nitrogen gas pouring port (6), the outlet end of the A pipeline (7) is connected with a torch system (8), and a safety valve (9) is arranged on the A pipeline (7).
3. The olefin separation methanol material returning system according to claim 1, wherein a nitrogen gas pouring port (6) is connected to a pipeline on the unqualified ethylene recycling heater (2), a pipeline B (10) is arranged on a pipeline section between the unqualified ethylene recycling heater (2) and the nitrogen gas pouring port (6), the inlet end of the pipeline B (10) is connected to a pipeline section between the unqualified ethylene recycling heater (2) and the nitrogen gas pouring port (6), a torch system (8) is connected to the outlet end of the pipeline B (10), and a safety valve (9) is arranged on the pipeline B (10).
4. The olefin separation methanol material returning system according to claim 1, wherein a nitrogen gas pouring port (6) is connected to the cold torch heater (3), a C pipeline (11) is arranged on a pipeline section between the cold torch heater (3) and the nitrogen gas pouring port (6), an inlet end of the C pipeline (11) is connected to a pipeline section between the cold torch heater (3) and the nitrogen gas pouring port (6), an outlet end of the C pipeline (11) is connected with a torch system (8), and a safety valve (9) is arranged on the C pipeline (11).
5. The olefin separation methanol material returning system according to claim 1, wherein the pipe section between the ethylene accident vaporizer (1) and the refined methanol tank (5) in the tank area is a D pipe (12), the D pipe (12) is sequentially provided with an A valve (13), a B valve (14), a C valve (15), a methanol material feeding pump (16) and a D valve (17), the A valve (13) is arranged at one end close to the ethylene accident vaporizer (1), the pipe section between the B valve (14) and the C valve (15) is provided with an E pipe (18), two ends of the E pipe (18) are connected to the pipe section between the B valve (14) and the C valve (15), the E pipe (18) is provided with an E valve (19), the pipe section between the C valve (15) and the methanol material feeding pump (16) is provided with an F pipe (20), two ends of the F pipe (20) are connected to the pipe section between the C valve (15) and the methanol material feeding pump (16), an F valve (21) is arranged on the F pipeline (20), a pipeline on the methanol feed pump (16) is connected with a tank field underground unqualified methanol tank (22), and a G valve (23) and an H valve (24) are sequentially arranged on a pipe section between the methanol feed pump (16) and the tank field underground unqualified methanol tank (22).
6. The olefin separation methanol regrind system according to claim 5, wherein a G pipeline (25) is connected to the unqualified ethylene recycle heater (2), one end of the G pipeline (25) is connected to the unqualified ethylene recycle heater (2), the other end of the G pipeline (25) is connected to a pipe section between the B valve (14) and the E pipeline (18), an I valve (26) and a J valve (27) are arranged on the G pipeline (25), an H pipeline (28) is connected to the cold flame torch heater (3), one end of the H pipeline (28) is connected to the cold flame torch heater (3), the other end of the H pipeline (28) is connected to the G pipeline (25), and a K valve (29) and an L valve (30) are arranged on the H pipeline (28).
7. The olefin separation methanol material returning system according to claim 6, wherein an I pipeline (31) and a J pipeline (32) are arranged on the methanol injection system (4), one end of the I pipeline (31) is connected with the methanol injection system (4), the other end of the I pipeline (31) is connected to a pipe section between the G pipeline (25) and the E pipeline (18), an M valve (33) is arranged on the I pipeline (31), a methanol injection pump (34) and an N valve (35) are sequentially arranged on the J pipeline (32), and a methanol user (36) is arranged at an outlet end of the J pipeline (32).
8. The olefin separation methanol recycling system according to claim 7, wherein a K pipeline (37) is disposed between the H pipeline (28) and the J pipeline (32), one end of the K pipeline (37) is connected to a pipe section between the K valve (29) and the L valve (30), and the other end of the K pipeline (37) is connected to a pipe section between the methanol injection pump (34) and the N valve (35).
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| CN202122680232.4U CN216591073U (en) | 2021-11-03 | 2021-11-03 | Olefin separation methanol returning system |
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Effective date of registration: 20240122 Address after: 719000 east of B1 Road, North Yuma Avenue, high tech Industrial Park, Yulin City, Shaanxi Province Patentee after: Middling coal Shaanxi Energy and Chemical Group Co.,Ltd. Country or region after: China Address before: 719000 east of B1 Road, North Yuma Avenue, high tech Industrial Park, Yulin City, Shaanxi Province Patentee before: CHINA COAL SHAANXI YULIN ENERGY & CHEMICAL CO.,LTD. Country or region before: China |