CN220997691U - Sealed dewatering device of normal pressure storage tank and chemical product production system - Google Patents
Sealed dewatering device of normal pressure storage tank and chemical product production system Download PDFInfo
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- CN220997691U CN220997691U CN202323253877.5U CN202323253877U CN220997691U CN 220997691 U CN220997691 U CN 220997691U CN 202323253877 U CN202323253877 U CN 202323253877U CN 220997691 U CN220997691 U CN 220997691U
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- storage tank
- oil
- dehydration
- mixed olefin
- observing mechanism
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- 238000003860 storage Methods 0.000 title claims abstract description 88
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000000126 substance Substances 0.000 title claims abstract description 13
- 150000001336 alkenes Chemical class 0.000 claims abstract description 75
- 230000007246 mechanism Effects 0.000 claims abstract description 75
- 230000018044 dehydration Effects 0.000 claims abstract description 74
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 74
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000010865 sewage Substances 0.000 claims abstract description 55
- 238000005070 sampling Methods 0.000 claims description 13
- 239000012780 transparent material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 39
- 238000000926 separation method Methods 0.000 abstract description 5
- 239000002689 soil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a closed dewatering device of an atmospheric storage tank, which comprises a mixed olefin storage tank, an underground sewage tank and an oil observing mechanism, wherein after mixed olefin is placed in the mixed olefin storage tank, a dewatering valve assembly is controlled to be opened, water at the bottom of the mixed olefin storage tank is discharged through a dewatering port, the discharged water is conveyed to the underground sewage tank through a sewage draining pipeline, as the oil observing mechanism is arranged between the mixed olefin storage tank and the underground sewage tank, part of water discharged through the dewatering port flows to the oil observing mechanism, an operator can observe that the phenomenon of water and oil separation occurs in the oil observing mechanism due to the difference of oil and water density, when the obvious water and oil demarcation occurs in the oil observing mechanism, the situation that the water in the mixed olefin storage tank is removed completely can be known, and the dewatering valve assembly can be closed, so that the mixed olefin is dewatered. Meanwhile, the utility model also provides a chemical product production system which comprises the sealed dehydration device of the normal pressure storage tank, and the mixed olefin to be subjected to standing dehydration is communicated with the mixed olefin storage tank.
Description
Technical Field
The utility model relates to the technical field of chemical equipment and peripheral supporting facilities thereof, in particular to a sealed dewatering device of an atmospheric storage tank and a chemical product production system.
Background
In the production process of oil products and petrochemical products, mixed olefins are required to be sent to a mixed olefin storage tank of an intermediate tank area, the mixed olefins are required to be kept still and dehydrated in the intermediate tank area, and the water content is less than 1000ppm and then sent to a hydrogenation device to be used as raw materials. The mixed olefin storage tank dehydration operation in the middle tank area is to directly discharge to a dehydration port on site, oil products are separated to pollute soil and environment in the dehydration process because oil water is not easy to identify, and the mixed olefin storage tank dehydration operation has a large safety risk and needs to be added with a closed dehydrator.
However, the installation of the dehydrator has the following problems: 1. because the storage tank foundation is lower, the dewatering opening of the storage tank is lower, and in order to ensure the dewatering process to be thorough, the foundation of irrigation equipment below 1.5m in the cofferdam of the tank area is needed, the soil moving operation and the fire moving operation are related, and the safety risk of the operation is high; 2. the equipment is placed outside the cofferdam, so that the safety construction condition can be met, but the safety protection distance requirement of the existing storage tank is not met, and the dewatering pipeline cannot collide with an underground sewage pool; 3. the catalyst and Fischer-Tropsch heavy hydrocarbon carried in the mixed olefin are easy to distort equipment instruments, so that a large amount of mixed olefin is discharged to underground tanks and other risks; 4. the investment cost of the conventional airtight dehydration device is high.
Disclosure of utility model
The utility model aims to provide a sealed dehydration device for an atmospheric storage tank, which solves the problems in the prior art, realizes sealed dehydration of mixed olefins, and simultaneously avoids pollution to soil and environment caused by the release of oil products along with water.
In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a sealed dehydration device of an atmospheric storage tank, which comprises:
A mixed olefin storage tank capable of containing mixed olefins, the mixed olefin storage tank having a dewatering port where a dewatering valve assembly is disposed;
The dehydration port of the mixed olefin storage tank is communicated with the underground sewage tank by a sewage drain pipeline, and a sewage drain valve is arranged on the sewage drain pipeline;
The oil observing mechanism is positioned between the mixed olefin storage tank and the underground sewage pool, an inlet of the oil observing mechanism is communicated with the dehydration opening by utilizing the dehydration valve assembly, an outlet of the oil observing mechanism is communicated with the sewage pipeline, a stop valve is arranged between the outlet of the oil observing mechanism and the sewage pipeline, the oil observing mechanism is positioned above the sewage pipeline, and an outlet of the oil observing mechanism is positioned above the inlet of the oil observing mechanism; the oil observing mechanism is provided with at least one observation window made of transparent materials, and the observation window is arranged along the connecting line direction from the inlet of the oil observing mechanism to the outlet of the oil observing mechanism.
Preferably, the dewatering valve assembly comprises at least two dewatering single valves, all of which are arranged in series.
Preferably, the dehydration port is located on a side wall of the mixed olefin storage tank and is located near the bottom of the mixed olefin storage tank.
Preferably, the sewage drain line is gradually inclined downward in a direction from the mixed olefin storage tank to the underground sewage tank.
Preferably, the inlet of the oil observing mechanism is arranged at the bottom of the oil observing mechanism, and the outlet of the oil observing mechanism is arranged at the top of the oil observing mechanism.
Preferably, the oil viewing mechanism is made of the transparent material.
Preferably, the dehydration port of the mixed olefin storage tank is also connected with a sampling line, and the sampling line is communicated with the dehydration port by utilizing the dehydration valve assembly.
Preferably, the sampling pipe line is provided with a shower guide valve.
Preferably, the number of the shower guide valves is two, and the two shower guide valves are arranged in series.
Further, the utility model also provides a chemical product production system which comprises the sealed dehydration device of the normal pressure storage tank, and the mixed olefin to be subjected to standing dehydration is communicated with the mixed olefin storage tank.
Compared with the prior art, the utility model has the following technical effects:
According to the sealed dehydration device for the normal-pressure storage tank, after mixed olefins are placed in the mixed olefin storage tank, the dehydration valve assembly is controlled to be opened, water at the bottom of the mixed olefin storage tank is discharged through the dehydration opening, the discharged water is conveyed to the underground sewage pool through the sewage draining pipeline, as the oil observing mechanism is arranged between the mixed olefin storage tank and the underground sewage pool, part of water discharged through the dehydration opening is distributed to the oil observing mechanism, the opening of the sewage draining valve can be adjusted, the water quantity which is distributed into the oil observing mechanism is adjusted, and the water flow slowly flows into the oil observing mechanism and fills the oil observing mechanism. When the water in the mixed olefin storage tank is cleaned to flow out of the oil, an operator can observe that the water-oil separation phenomenon occurs in the oil observing mechanism due to the oil-water density difference, and when the obvious water-oil demarcation occurs in the oil observing mechanism, the operator can know that the water in the mixed olefin storage tank is cleaned, and can close the dehydration valve assembly to complete dehydration of the mixed olefin; the oil observing mechanism is provided with at least one observation window made of transparent materials, so that an operator can conveniently monitor the dehydration condition of mixed olefins in real time, airtight dehydration is realized, and meanwhile, the oily sewage is prevented from directly discharging polluted environment; in addition, a stop valve is arranged between the outlet of the oil observing mechanism and the sewage drain, so that a large amount of light oil is prevented from being discharged by the water, and meanwhile, the judgment basis of slow rising of an oil-water interface is realized, and the adaptability of the sealed dewatering device for the constant-pressure storage tank is further improved.
Meanwhile, the utility model also provides a chemical product production system which comprises the sealed dehydration device of the normal pressure storage tank, wherein the mixed olefin to be subjected to standing dehydration is communicated with the mixed olefin storage tank, and the sealed dehydration provides convenience for the production of subsequent chemical products, and improves the production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the sealed dewatering device for the normal pressure storage tank.
Wherein 100 is a sealed dehydration device of an atmospheric storage tank;
1 is a mixed olefin storage tank, 2 is an underground sewage pool, 3 is an oil observing mechanism, 4 is a sewage drain pipeline, 5 is a dehydration port, 6 is a dehydration valve component, 7 is a sewage drain valve, 8 is a stop valve, 9 is a dehydration single valve, 10 is a sampling pipeline, and 11 is a shower guide valve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a sealed dehydration device for an atmospheric storage tank, which solves the problems in the prior art, realizes sealed dehydration of mixed olefins, and simultaneously avoids pollution to soil and environment caused by the release of oil products along with water.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
The utility model provides a closed dewatering device 100 of an atmospheric storage tank, which comprises a mixed olefin storage tank 1, an underground sewage tank 2 and an oil observing mechanism 3, wherein the mixed olefin storage tank 1 can contain mixed olefin, the mixed olefin storage tank 1 is provided with a dewatering opening 5, and a dewatering valve component 6 is arranged at the dewatering opening 5; the dehydration port 5 of the mixed olefin storage tank 1 is communicated with the underground sewage pool 2 by a sewage drain pipeline 4, and the sewage drain pipeline 4 is provided with a sewage drain valve 7; the oil observing mechanism 3 is positioned between the mixed olefin storage tank 1 and the underground sewage tank 2, the inlet of the oil observing mechanism 3 is communicated with the dehydration opening 5 by utilizing the dehydration valve component 6, the outlet of the oil observing mechanism 3 is communicated with the sewage pipeline 4, a stop valve 8 is arranged between the outlet of the oil observing mechanism 3 and the sewage pipeline 4, the oil observing mechanism 3 is positioned above the sewage pipeline 4, and the outlet of the oil observing mechanism 3 is positioned above the inlet of the oil observing mechanism 3; the oil observing mechanism 3 is provided with at least one observation window made of transparent materials, and the observation window is arranged along the connecting line direction from the inlet of the oil observing mechanism 3 to the outlet of the oil observing mechanism 3.
According to the sealed dehydration device 100 of the normal pressure storage tank, after mixed olefin is placed in the mixed olefin storage tank 1, the dehydration valve assembly 6 is controlled to be opened, water at the bottom of the mixed olefin storage tank 1 is discharged through the dehydration opening 5, the discharged water is conveyed to the underground sewage pool 2 through the drain pipeline 4, as the oil observing mechanism 3 is arranged between the mixed olefin storage tank 1 and the underground sewage pool 2, part of water discharged through the dehydration opening 5 flows to the oil observing mechanism 3, the opening degree of the drain valve 7 can be adjusted, the water quantity flowing into the oil observing mechanism 3 is adjusted, and the water flow slowly flows into the oil observing mechanism 3 and fills the oil observing mechanism 3. When the water in the mixed olefin storage tank 1 is cleaned to flow out of the oil, an operator can observe that the water-oil separation phenomenon occurs in the oil observing mechanism 3 due to the oil-water density difference, and can know that the water in the mixed olefin storage tank 1 is cleaned when the obvious water-oil demarcation occurs in the oil observing mechanism 3, and the dehydration valve component 6 can be closed to complete dehydration of the mixed olefin; the oil observing mechanism 3 is provided with at least one observation window made of transparent materials, so that an operator can conveniently monitor the dehydration condition of mixed olefins in real time, airtight dehydration is realized, and meanwhile, the oily sewage is prevented from directly discharging polluted environment; in addition, a stop valve 8 is arranged between the outlet of the oil observing mechanism 3 and the sewage drain pipeline 4, so that a large amount of light oil (oil with smaller density) is prevented from being discharged by water, and meanwhile, the judgment basis of slow rising of an oil-water interface is realized, and the adaptability of the sealed dehydration device 100 of the normal pressure storage tank is further improved. In addition, the outlet of the oil observing mechanism 3 is also communicated with the sewage drain pipeline 4, so that water in each part is conveniently emptied after the drainage of the device is finished, the anti-freezing problem of each part and the pipeline is solved, and the working reliability of the device is further improved.
It should be further noted that, in this embodiment, the dewatering valve assembly 6 includes at least two dewatering single valves 9, all the dewatering single valves 9 are serially connected, in order to avoid damage caused by frequent opening and closing of the dewatering valve assembly 6, the utility model adopts a working mode of serially connecting the dewatering single valves 9, the dewatering single valves 9 are switched for use, when one of the dewatering single valves 9 is used, the other dewatering single valves 9 are kept in an open state, so that the service life of the dewatering valve assembly 6 is prolonged, the working reliability of the device is improved, and in practical application, the number of the dewatering single valves 9 can be adjusted according to practical requirements. It should be further explained that, in the sealed dewatering device 100 for an atmospheric storage tank according to the present utility model, specifications of the dewatering valve assembly 6, the blow-down valve 7, the stop valve 8 and the blow-down line 4 can be adjusted according to specific working conditions so as to meet different production requirements.
The dehydration opening 5 is positioned on the side wall of the mixed olefin storage tank 1 and is close to the bottom of the mixed olefin storage tank 1, and the dehydration opening 5 is arranged at the position of the side wall of the mixed olefin storage tank 1 close to the bottom, so that the connection setting of the sewage drain pipeline 4 is facilitated, the dehydration requirement on the mixed olefin storage tank 1 is reduced, and the adaptability of the device is further improved. In other specific embodiments of the present utility model, the setting position of the dewatering opening 5 may be adjusted according to the actual working condition, so as to meet the dewatering requirements in the production of different chemical products.
It should be emphasized that along the direction from the mixed olefin storage tank 1 to the underground sewage tank 2, the sewage drain line 4 is gradually arranged in a downward inclination manner, and the sewage drain line 4 is gradually arranged in a downward inclination manner, so that water entering the sewage drain line 4 can flow into the underground sewage tank 2 under the action of gravity, and the dewatering reliability is further improved.
In this concrete embodiment, the import of oil viewing mechanism 3 sets up in the bottom of oil viewing mechanism 3, and the export of oil viewing mechanism 3 sets up in the top of oil viewing mechanism 3, rationally sets up import and the exit position of oil viewing mechanism 3 to observe the oil-water separation phenomenon better, improve the operational reliability of oil viewing mechanism 3, avoid appearing a large amount of oily sewage and directly discharge the problem that causes environmental pollution.
In other embodiments of the present utility model, the oil viewing mechanism 3 may be made of a transparent material, so as to further improve the viewing convenience of the oil viewing mechanism 3.
In addition, the dehydration port 5 of the mixed olefin storage tank 1 is also connected with a sampling pipeline 10, the sampling pipeline 10 is communicated with the dehydration port 5 by utilizing the dehydration valve component 6, and after dehydration is finished, sampling can be performed by utilizing the sampling pipeline 10 so as to test whether the water content of dehydrated mixed olefin meets the production requirement.
In practical applications, the shower guide valve 11 may be disposed on the sampling line 10, and after dehydration and sampling are completed, the shower guide valve 11 may be used to drain the fluid in the device.
In other embodiments of the present utility model, the number of shower guide valves 11 may be two, and two shower guide valves 11 are arranged in series, similar to the dehydration valve assembly 6, to extend the service life of the shower guide valves 11.
Further, the utility model also provides a chemical product production system, which comprises the sealed dehydration device 100 of the normal pressure storage tank, wherein the mixed olefin to be subjected to standing dehydration is communicated with the mixed olefin storage tank 1, and the sealed dehydration provides convenience for the production of subsequent chemical products, and improves the production efficiency.
The sealed dewatering device 100 for the normal pressure storage tank, provided by the utility model, utilizes the split flow principle and the oil-water density difference of the urban weir, utilizes the mounted oil observing mechanism 3 to observe the oil-water separation phenomenon, has more visual oil-water interface, more accurately judges whether the water in the mixed olefin storage tank 1 is completely removed, and realizes sealed discharge.
Noun interpretation:
And (3) a normal pressure storage tank: the normal pressure storage tank is a steel welding storage tank which is designed to have the pressure of less than or equal to 1/3 atmospheric pressure (gauge), is built on the ground, and stores liquid media such as petroleum, chemical industry and the like which are not artificially refrigerated and have no severe toxicity.
Density: density is a measure of mass within a particular volume, and is equal to the mass of an object divided by the volume, and may be represented by the symbol ρ, which is kg per cubic meter in international and chinese legal units of measurement, kg/m 3.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (10)
1. An airtight dewatering device of ordinary pressure storage tank, characterized by comprising:
A mixed olefin storage tank capable of containing mixed olefins, the mixed olefin storage tank having a dewatering port where a dewatering valve assembly is disposed;
The dehydration port of the mixed olefin storage tank is communicated with the underground sewage tank by a sewage drain pipeline, and a sewage drain valve is arranged on the sewage drain pipeline;
The oil observing mechanism is positioned between the mixed olefin storage tank and the underground sewage pool, an inlet of the oil observing mechanism is communicated with the dehydration opening by utilizing the dehydration valve assembly, an outlet of the oil observing mechanism is communicated with the sewage pipeline, a stop valve is arranged between the outlet of the oil observing mechanism and the sewage pipeline, the oil observing mechanism is positioned above the sewage pipeline, and an outlet of the oil observing mechanism is positioned above the inlet of the oil observing mechanism; the oil observing mechanism is provided with at least one observation window made of transparent materials, and the observation window is arranged along the connecting line direction from the inlet of the oil observing mechanism to the outlet of the oil observing mechanism.
2. The atmospheric storage tank sealed dehydration apparatus of claim 1 wherein: the dewatering valve assembly comprises at least two dewatering single valves, and all the dewatering single valves are arranged in series.
3. The atmospheric storage tank sealed dehydration apparatus of claim 1 wherein: the dehydration port is positioned on the side wall of the mixed olefin storage tank and is arranged close to the bottom of the mixed olefin storage tank.
4. The atmospheric storage tank sealed dehydration apparatus of claim 1 wherein: and the sewage drain pipeline is gradually arranged in a downward inclination manner along the direction from the mixed olefin storage tank to the underground sewage pool.
5. The sealed dewatering device for an atmospheric storage tank according to any one of claims 1 to 4, wherein: the inlet of the oil observing mechanism is arranged at the bottom of the oil observing mechanism, and the outlet of the oil observing mechanism is arranged at the top of the oil observing mechanism.
6. The sealed dewatering device for an atmospheric storage tank according to claim 5, wherein: the oil observing mechanism is made of the transparent material.
7. The sealed dewatering device for an atmospheric storage tank according to any one of claims 1 to 4, wherein: the dehydration port of the mixed olefin storage tank is also connected with a sampling pipeline, and the sampling pipeline is communicated with the dehydration port by utilizing the dehydration valve component.
8. The atmospheric storage tank sealed dehydration apparatus of claim 7 wherein: and the sampling pipe line is provided with a shower guide valve.
9. The atmospheric storage tank sealed dehydration apparatus of claim 8 wherein: the number of the shower guide valves is two, and the two shower guide valves are arranged in series.
10. A chemical product production system is characterized in that: comprising the sealed dehydration device for an atmospheric storage tank according to any one of claims 1 to 9, wherein the mixed olefin to be subjected to standing dehydration is communicated with the mixed olefin storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323253877.5U CN220997691U (en) | 2023-11-30 | 2023-11-30 | Sealed dewatering device of normal pressure storage tank and chemical product production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323253877.5U CN220997691U (en) | 2023-11-30 | 2023-11-30 | Sealed dewatering device of normal pressure storage tank and chemical product production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220997691U true CN220997691U (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323253877.5U Active CN220997691U (en) | 2023-11-30 | 2023-11-30 | Sealed dewatering device of normal pressure storage tank and chemical product production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220997691U (en) |
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2023
- 2023-11-30 CN CN202323253877.5U patent/CN220997691U/en active Active
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