CN218811196U - A online purifier for MTO device water system - Google Patents
A online purifier for MTO device water system Download PDFInfo
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- CN218811196U CN218811196U CN202223034433.8U CN202223034433U CN218811196U CN 218811196 U CN218811196 U CN 218811196U CN 202223034433 U CN202223034433 U CN 202223034433U CN 218811196 U CN218811196 U CN 218811196U
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Abstract
The utility model relates to an online purification system, in particular to an online purification device for an MTO device water system, which comprises a cooler, a filter, a coalescer and a separation tank; the inlet of the cooler is connected with the outlet of the water system of the MTO device, the outlet of the cooler is connected with the inlet of the filter, the water phase outlet of the filter is connected with the inlet of the coalescer, and the top oil phase outlet of the coalescer is connected with the inlet of the separation tank. The utility model can effectively reduce the oil content and the solid impurity content in the water system, prevent the heat exchanger of the water system from being blocked, optimize the operating environment of the quench tower and the sewage stripping tower, greatly reduce the COD value of the external drainage water and reduce the sewage treatment pressure; the long-period stable operation of the device can be ensured, partial by-products are recycled, and the economic benefit is improved.
Description
Technical Field
The utility model relates to an online clean system, concretely relates to online purifier who is used for MTO device water system.
Background
In the traditional MTO process, a cyclone separator is adopted to carry out primary separation on catalyst particles, then gas-solid separation is further carried out in a circulating water washing mode, and finally liquid-solid separation is carried out in a cloth bag filtering mode. Because the pore passages of the catalyst particles are internally provided with aromatic ring substances such as polymethyl benzene, naphthalene, anthracene and the like, and the organic substances are dispersed into water to form oil substances, the liquid-solid separation of a water system becomes complicated and difficult, and the catalyst particles and the oil substances are mutually adhered, so that the traditional cloth bag type filter is extremely easy to block and cannot exert the due separation effect; and because the relative content of oil substances is very small, and a water system contains a trace amount of small molecular weight alcohol, ketone and the like, a miscible phase system similar to low-concentration emulsion is further formed, and effective oil-water separation is difficult to realize by adopting the traditional rotary liquid purification facility. With the lengthening of the production period, the phenomenon of deposition of catalyst particles and oil substances and mud in each heat exchanger of the water system are finally caused, and the heat exchange efficiency of the heat exchanger is greatly reduced until the heat exchanger is blocked. Simultaneously, the oil content and the COD value of the stripping water are higher, and the running cost of the device is higher. Therefore, certain measures are needed to be taken in the water system to separate the oil from the water in the process water and remove catalyst particles.
SUMMERY OF THE UTILITY MODEL
To catalyst granule and the problem that oil material blockked up water system heat exchanger easily among the prior art MTO device water system, the utility model provides an online purifier for MTO device water system.
The utility model provides an online purification device for an MTO device water system, which comprises a cooler, a filter, a coalescer and a separation tank; the inlet of the cooler is connected with the outlet of the water system of the MTO device, the outlet of the cooler is connected with the inlet of the filter, the water phase outlet of the filter is connected with the inlet of the coalescer, and the top oil phase outlet of the coalescer is connected with the inlet of the separation tank.
Further, the filter is a vertical full-automatic filter, and a sewage outlet at the bottom of the filter is connected with a catalyst filtering and recycling device; the vertical full-automatic filter has the advantages of large water treatment amount, automatic filtration, cleaning, pollution discharge and uninterrupted water supply; the discharged sludge enters a catalyst filtering and recycling device to recycle catalyst particles in the sludge.
And the bottom water phase outlet of the coalescer and the bottom water phase outlet of the separation tank are respectively connected with an inlet of the process water pump through pipelines, and an outlet of the process water pump is connected with an inlet of an MTO device water system.
Furthermore, the coalescer is provided with a first interface meter, and a coalescer water phase extraction control valve is arranged on a pipeline between the coalescer and the process water pump.
Furthermore, the separating tank is provided with a second interface meter, and a separating tank water phase extraction control valve is arranged on a pipeline between the separating tank and the process water pump.
Furthermore, the device also comprises an oil storage tank connected with an oil phase outlet pipeline at the top end of the separation tank.
Furthermore, the separation tank is also provided with a pressure gauge, and a separation tank oil phase extraction control valve is arranged on a pipeline between the separation tank and the oil storage tank.
The beneficial effects of the utility model reside in that: the device of the utility model can effectively reduce the oil content and the solid impurity content in the water system, prevent the heat exchanger of the water system from being blocked, optimize the operating environment of the quench tower and the sewage stripping tower, greatly reduce the COD value of the external drainage water and reduce the sewage treatment pressure; the long-period stable operation of the device can be ensured, partial by-products are recycled, and the economic benefit is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an online purification device for an MTO device water system according to the present invention.
In the figure, 1-a separation tank oil phase extraction control valve, 2-a separation tank water phase extraction control valve, 3-a coalescer water phase extraction control valve, 101-a cooler, 102-a vertical full-automatic filter, 103-a coalescer, 104-a separation tank, 105-a process water pump, 106-an oil storage tank and 107-a catalyst filtering and recovering device.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the online purification device of the MTO unit water system comprises a cooler 101, a vertical fully automatic filter 102, a coalescer 103, a separation tank 104, a process water pump 105, a catalyst filtration recovery device 107 and an oil storage tank 106; the inlet of the cooler 101 is connected with the outlet of an MTO device water system, the outlet of the cooler 101 is connected with the inlet of the vertical full-automatic filter 102, the water phase outlet of the vertical full-automatic filter 102 is connected with the inlet of the coalescer 103, and the sewage discharge outlet of the vertical full-automatic filter 102 is connected with the catalyst filtering and recovering device 107; the top oil phase outlet of the coalescer 103 is connected with the inlet of the separation tank 104, the water phase outlet of the coalescer 103 is connected with the process water pump 105, and a coalescer water phase extraction control valve 3 is arranged between the two; an oil phase outlet of the separation tank 104 is connected with an oil storage tank 106 and is provided with a separation tank oil phase extraction control valve 1, and a water phase outlet of the separation tank 104 is connected with a process water pump 105 and is provided with a separation tank water phase extraction control valve 2; the coalescer 103 is provided with a first interface meter and the separator tank 104 with a second interface meter and a pressure gauge.
When the utility model is used, the process water is led out from the water system of the MTO device and is firstly cooled in the cooler 101, the water inlet temperature is ensured to be proper, the use effect and the treatment effect of a subsequent treatment unit are not influenced, the cooled process water enters the vertical full-automatic filter 102, impurities can be discharged through a drain outlet at the bottom of the vertical full-automatic filter 102 and enter the catalyst filtering and recycling device 107, and the recycling of catalyst particles is completed;
the filtered process water is subjected to primary oil-water separation in the coalescer 103, a first interface meter is arranged on the coalescer 103 and used for indicating the liquid levels of an oil phase and a water phase in the coalescer 103, and a technician or a control system can control the coalescer water phase extraction control valve 3 through the indication of the first interface meter so as to adjust the output flow of the process water pump 105;
the process water after the preliminary separation enters a separation tank 104, further oil-water separation is completed in the separation tank 104, an oil phase extraction control valve 1 of the separation tank is adjusted through indication of a pressure gauge of the separation tank 104, the extracted oil phase enters an oil storage tank 106 and then is recycled or sold externally, a water phase extraction control valve 2 of the separation tank is controlled through a second interface meter, and the separated water enters a process water pump 105; the process water pump 105 returns the separated process water to the process water system of the MTO unit to achieve the purpose of on-line purification.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention.
Claims (7)
1. An on-line purification device for an MTO device water system, which is characterized by comprising a cooler, a filter, a coalescer and a separation tank; the inlet of the cooler is connected with the outlet of the water system of the MTO device, the outlet of the cooler is connected with the inlet of the filter, the water phase outlet of the filter is connected with the inlet of the coalescer, and the oil phase outlet at the top end of the coalescer is connected with the inlet of the separation tank.
2. The on-line purification device for the water system of the MTO device as recited in claim 1, wherein the filter is a vertical full automatic filter, and a catalyst filtering and recycling device is connected to a sewage outlet at the bottom of the filter.
3. The on-line purification device for an MTO device water system as claimed in claim 1, further comprising a process water pump, wherein the bottom water phase outlet of the coalescer and the bottom water phase outlet of the separation tank are respectively connected with the inlet of the process water pump through pipelines, and the outlet of the process water pump is connected with the inlet of the MTO device water system.
4. The on-line purification device for an MTO device water system according to claim 3, wherein the coalescer is provided with a first interfacial surface meter, and a coalescer water phase production control valve is provided on a pipeline between the coalescer and the process water pump.
5. The on-line purification device for an MTO device water system as claimed in claim 3, wherein the separation tank is provided with a second interface meter, and a separation tank water phase extraction control valve is provided on a pipeline between the separation tank and the process water pump.
6. The on-line purification apparatus for an MTO unit water system according to claim 1, further comprising a storage tank connected to the oil outlet line at the top end of the separation tank.
7. The on-line purification device for an MTO device water system as claimed in claim 6, wherein the separation tank is further provided with a pressure gauge, and a separation tank oil phase extraction control valve is provided on a pipeline between the separation tank and the oil storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223034433.8U CN218811196U (en) | 2022-11-14 | 2022-11-14 | A online purifier for MTO device water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223034433.8U CN218811196U (en) | 2022-11-14 | 2022-11-14 | A online purifier for MTO device water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218811196U true CN218811196U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223034433.8U Active CN218811196U (en) | 2022-11-14 | 2022-11-14 | A online purifier for MTO device water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218811196U (en) |
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2022
- 2022-11-14 CN CN202223034433.8U patent/CN218811196U/en active Active
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