Reciprocating pump flushing oil recovery system of fluidized bed residual oil hydrocracking unit
By designing a reciprocating pump flushing oil recovery system for a fluidized bed residue hydrocracking unit, the problem of sludge oil generation in the refining unit was solved, resulting in increased wax oil production and reduced energy consumption, with significant economic benefits.
Patent Information
- Application Number
- CN202520083514.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Oil refining units generate a large amount of sludge during production or maintenance, leading to increased energy consumption. It is necessary to improve the recovery method of reciprocating pump flushing oil to reduce the amount of sludge and energy consumption.
Design a reciprocating pump flushing oil recovery system for a fluidized bed residue hydrocracking unit, including a reciprocating pump preheating flushing oil main pipe, a waste flushing oil tank and a sealed oil tank. The flushing oil is treated by a filter and a hot water cooler, and the wax oil is recovered and reused to reduce the generation of sludge oil.
It increased the production of wax oil in the unit, reduced the amount of sludge oil, lowered energy consumption, and was highly economical, increasing the annual production of wax oil by 120,000 tons.
Smart Images
Figure CN223906799U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of reciprocating pump flushing oil recovery system of ebullated bed residual oil hydrocracking unit, belong to oil refining field. BACKGROUND
[0002] Oil refinery will produce a large amount of dirty oil when normal production or start-stop, inspection and maintenance, and the production device is generally provided with a dirty oil tank to collect the dirty oil of the device, which is transported to the atmospheric storage tank for storage by a dirty oil pump and then recycled after water cutting. However, this also generates additional energy consumption, so it is imperative to reform the reciprocating pump flushing oil recovery system of the ebullated bed residual oil hydrocracking unit. SUMMARY
[0003] In view of the defects of the prior art, the utility model aims to provide a reciprocating pump flushing oil recovery system of ebullated bed residual oil hydrocracking unit to reduce dirty oil and energy consumption.
[0004] To achieve the above-mentioned purpose, the utility model employs the technical scheme of a reciprocating pump flushing oil recovery system of ebullated bed residual oil hydrocracking unit, which comprises a reciprocating pump preheating flushing oil main pipe, a waste flushing oil tank and a sealing oil tank. The reciprocating pump preheating flushing oil main pipe is connected to the inlet of the sealing oil tank through a sealing oil tank inlet pipeline, and a first filter and a hot water cooler are sequentially arranged on the sealing oil tank inlet pipeline. The reciprocating pump preheating flushing oil main pipe is connected to the inlet of the waste flushing oil tank through a waste flushing oil tank supplement pipeline.
[0005] Based on the above technical scheme, the first filter filters and removes possible mechanical impurities in the reciprocating pump preheating flushing oil return oil.
[0006] Further, the inlet of the waste flushing oil tank is connected with a waste flushing oil tank inlet pipeline, the outlet of the catalyst waste flushing oil main pipe is connected with the waste flushing oil tank inlet pipeline, and the outlet of the waste flushing oil tank supplement pipeline is connected on the waste flushing oil tank inlet pipeline.
[0007] Further, a second filter is arranged on the waste flushing oil tank inlet pipeline, and the outlet of the waste flushing oil tank supplement pipeline is connected upstream of the second filter.
[0008] Based on the above technical scheme, the second filter filters and removes catalyst impurities, macromolecular coke and mechanical impurities.
[0009] Further, a waste flushing oil tank supplement valve is arranged on the waste flushing oil tank supplement pipeline.
[0010] Further, the bottom outlet of the sealing oil tank is connected with a machine pump flushing oil pipeline, a machine pump flushing oil pump is arranged on the machine pump flushing oil pipeline, and the machine pump flushing oil pump sends the wax oil in the sealing oil tank out as flushing oil of the machine pump sealing PLAN32 oil pump.
[0011] Further, the bottom outlet of the sealing oil tank is connected with a cold low-pressure flushing oil pipeline, a cold low-pressure flushing oil pump is arranged on the cold low-pressure flushing oil pipeline, and the cold low-pressure flushing oil pump sends the wax oil in the sealing oil tank out as cold low-pressure flushing oil.
[0012] Further, the bottom outlet of the sealing oil tank is connected with a cold high-pressure flushing oil pipeline, a cold high-pressure flushing oil pump is arranged on the cold high-pressure flushing oil pipeline, and the cold high-pressure flushing oil pump sends the wax oil in the sealing oil tank out as cold high-pressure flushing oil.
[0013] Further, the inlet of the sealing oil tank is connected with a pressure-reducing wax oil supplement pipeline.
[0014] Further, the bottom outlet of the waste flushing oil tank is connected with a waste flushing oil tank outlet pipeline and a waste flushing oil tank outlet pump, and the waste flushing oil tank outlet pipeline is connected to a normal-pressure storage tank heavy oil tank.
[0015] Further, the preheating flushing oil outlet temperature of the reciprocating pump of the hot water cooler is 85 DEG C.
[0016] The utility model discloses a reciprocating pump flushing oil recovery system, which comprises a sealing oil tank, a waste flushing oil tank, a hot water cooler and a pressure-reducing wax oil supplement pipeline. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the flow chart of the reciprocating pump flushing oil recovery system of the utility model;
[0018] In the drawing: 1, catalyst waste flushing oil main pipe, 2, reciprocating pump preheating flushing oil main pipe, 3, waste flushing oil tank, 4, sealing oil tank, 5, sealing oil tank inlet pipeline, 6, first filter, 7, hot water cooler, 8, machine pump flushing oil pipeline, 9, machine pump flushing oil pump, 10, cold low-pressure flushing oil pipeline, 11, cold low-pressure flushing oil pump, 12, cold high-pressure flushing oil pipeline, 13, cold high-pressure flushing oil pump, 14, pressure-reducing wax oil supplement pipeline, 15, waste flushing oil tank inlet pipeline, 16, second filter, 17, waste flushing oil tank supplement pipeline, 18, waste flushing oil tank supplement valve, 19, waste flushing oil tank outlet pipeline, 20, waste flushing oil tank outlet pump. DETAILED DESCRIPTION
[0019] In order to make the above-mentioned purpose, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.
[0020] Referring to the drawings Figure 1 The application discloses a reciprocating pump flushing oil recovery system of a boiling bed residual oil hydrocracking device, which comprises a reciprocating pump preheating flushing oil main pipe 2, a waste flushing oil tank 3 and a sealing oil tank 4. The reciprocating pump preheating flushing oil main pipe 2 is connected to the inlet of the sealing oil tank 4 through a sealing oil tank inlet pipeline 5, and a first filter 6 and a hot water cooler 7 are sequentially arranged on the sealing oil tank inlet pipeline 5. The outlet temperature of the reciprocating pump preheating flushing oil of the hot water cooler 7 is 85 DEG C. A mechanical pump flushing oil pipeline 8, a cold low-pressure flushing oil pipeline 10 and a cold high-pressure flushing oil pipeline 12 are connected to the bottom outlet of the sealing oil tank 4. A pressure-reducing wax oil supplement pipeline 14 is connected to the inlet of the sealing oil tank 4, and the pressure-reducing wax oil supplement pipeline 14 is filled with pressure-reducing wax oil produced by the device. The inlet of the waste flushing oil tank 3 is connected with a waste flushing oil tank inlet pipeline 15, and the outlet of a catalyst waste flushing oil main pipe 1 is connected with the waste flushing oil tank inlet pipeline 15. A second filter 16 is arranged on the waste flushing oil tank inlet pipeline 15. The reciprocating pump preheating flushing oil main pipe 2 is connected to the upstream of the second filter 16 through a waste flushing oil tank supplement pipeline 17, and a waste flushing oil tank supplement valve 18 is arranged on the waste flushing oil tank supplement pipeline 17. The bottom outlet of the waste flushing oil tank 3 is connected with a waste flushing oil tank outlet pipeline 19 and a waste flushing oil tank outlet pump 20, and the waste flushing oil tank outlet pipeline 19 is connected to a normal-pressure storage tank heavy oil tank.
[0021] According to the technical scheme, the catalyst waste flushing oil in the catalyst waste flushing oil main pipe 1 contains a large amount of residual oil in a residual oil hydrogenation reactor, and has a bad property. The residual oil is sent to the normal-pressure storage tank heavy oil tank for further treatment. The reciprocating pump preheating flushing oil in the reciprocating pump preheating flushing oil main pipe 2 is wax oil. After the reciprocating pump is used, a small amount of mechanical impurities may exist in the oil. The mechanical impurities can be removed through the first filter 6, and the reciprocating pump preheating flushing oil can be recycled. The second filter 16 is used for filtering and removing catalyst impurities, macromolecular coke and mechanical impurities. In the embodiment, the second filter 16 is a basket filter provided by Wuxi Petrochemical General Parts Co., Ltd.
[0022] Further, the bottom outlet of the sealing oil tank 4 is connected with a machine pump flushing oil pipeline 8, a machine pump flushing oil pump 9 is arranged on the machine pump flushing oil pipeline 8, and the machine pump flushing oil pump 9 sends the wax oil in the sealing oil tank 4 out as flushing oil of a machine seal PLAN32 sealing oil pump.
[0023] Further, the bottom outlet of the sealing oil tank 4 is connected with a cold low-pressure flushing oil pipeline 10, a cold low-pressure flushing oil pump 11 is arranged on the cold low-pressure flushing oil pipeline 10, and the cold low-pressure flushing oil pump 11 sends the wax oil in the sealing oil tank 4 out as cold low-pressure flushing oil.
[0024] Further, the bottom outlet of the sealing oil tank 4 is connected with a cold high-pressure flushing oil pipeline 12, a cold high-pressure flushing oil pump 13 is arranged on the cold high-pressure flushing oil pipeline 12, and the cold high-pressure flushing oil pump 13 sends the wax oil in the sealing oil tank 4 out as cold high-pressure flushing oil.
[0025] The reciprocating pump flushing oil recovery system of the embodiment sends the preheating flushing oil of the reciprocating pump in the device, including a catalyst loading and unloading agent conveying oil pump, a flushing oil pump and the like, to the sealing oil tank inlet pipeline 5 through the reciprocating pump preheating flushing oil main pipe 2, filters through the first filter 6, cools to 85 DEG C through the hot water cooler 7, is introduced into the sealing oil tank 4, and is used as machine pump PLAN32 flushing oil and cold low-pressure and high-pressure flushing oil.
[0026] When the waste flushing oil tank 3 is low in liquid level, the waste flushing oil tank 3 can be changed back, and the sealing oil tank 4 is supplemented with more reduced pressure wax oil through the reduced pressure wax oil supplement pipeline 14, and the wax oil sent out of the device is temporarily reduced.
[0027] Generally, the preheating flushing oil of the reciprocating pump is recovered, about 15t / h of wax oil can be recovered, the wax oil sent out of the device is correspondingly increased, and the economic efficiency is very high. The wax oil output of the device is greatly improved.
[0028] It should be noted that the parts not described in the utility model are prior art.
[0029] In the description of the utility model, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0030] In the utility model, unless another definite provision and limitation, the term "mount", "link", "connect", "fix" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection;Can be direct connection, also can pass through intermediate medium indirectly connect, can be two element inside's intercommunication or two element's interaction relation, unless another definite limitation.For the ordinary skill in the art, can understand the above-mentioned term in the utility model's concrete meaning according to specific circumstances.
[0031] It should be noted that when an element is referred to as "fixed" or "disposed" on another element, it can be directly on another element or there can be an intervening element. When an element is referred to as "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms as used herein are for descriptive purposes only and not meant to be limiting.
[0032] The above is only the best embodiment of the utility model. Obviously, the utility model is not limited to the above embodiment, and there can be many variations. All variations that can be directly derived or inferred from the disclosed content by those of ordinary skill in the art should be considered within the scope of protection of the utility model.
Claims
1. A boiling bed residue hydrocracking unit reciprocating pump flush oil recovery system characterized by: The system comprises a reciprocating pump preheating flushing oil pipeline, a waste flushing oil tank and a sealing oil tank; the reciprocating pump preheating flushing oil pipeline is connected to the inlet of the sealing oil tank through a sealing oil tank inlet pipeline, and a first filter and a hot water cooler are arranged on the sealing oil tank inlet pipeline in sequence; the reciprocating pump preheating flushing oil pipeline is connected to the inlet of the waste flushing oil tank through a waste flushing oil tank supplement pipeline.
2. A boiling bed residue hydrocracking unit reciprocating pump flush oil recovery system as claimed in claim 1, characterized in that: The inlet of the waste flushing oil tank is connected with a waste flushing oil tank inlet pipeline, the outlet of the catalyst waste flushing oil pipeline is connected with the waste flushing oil tank inlet pipeline, and the outlet of the waste flushing oil tank supplement pipeline is connected on the waste flushing oil tank inlet pipeline.
3. A boiling bed residue hydrocracking unit reciprocating pump flush oil recovery system as claimed in claim 2 wherein: A second filter is arranged on the waste flushing oil tank inlet pipeline, and the outlet of the waste flushing oil tank supplement pipeline is connected upstream of the second filter.
4. A boiling bed residue hydrocracking unit reciprocating pump flush oil recovery system as claimed in claim 1, wherein: A waste flushing oil tank supplement valve is arranged on the waste flushing oil tank supplement pipeline.
5. A boiling bed residue hydrocracking unit reciprocating pump flush oil recovery system as claimed in claim 1 wherein: The bottom outlet of the sealing oil tank is connected with a machine pump flushing oil pipeline, a machine pump flushing oil pump is arranged on the machine pump flushing oil pipeline, and the machine pump flushing oil pump sends the wax oil in the sealing oil tank out as flushing oil of a machine seal PLAN32 sealing oil pump of a machine pump.
6. A boiling bed residue hydrocracking unit reciprocating pump flush oil recovery system as claimed in claim 1, wherein: The bottom outlet of the sealing oil tank is connected with a cold low-pressure flushing oil pipeline, a cold low-pressure flushing oil pump is arranged on the cold low-pressure flushing oil pipeline, and the cold low-pressure flushing oil pump sends the wax oil in the sealing oil tank out as cold low-pressure flushing oil.
7. A boiling bed residue hydrocracking unit reciprocating pump flush oil recovery system as claimed in claim 1, wherein: The bottom outlet of the sealing oil tank is connected with a cold high-pressure flushing oil pipeline, a cold high-pressure flushing oil pump is arranged on the cold high-pressure flushing oil pipeline, and the cold high-pressure flushing oil pump sends the wax oil in the sealing oil tank out as cold high-pressure flushing oil.
8. A boiling bed residue hydrocracking unit reciprocating pump flush oil recovery system as claimed in claim 1, wherein: A pressure-reducing wax oil supplement pipeline is connected to the inlet of the sealing oil tank.
9. A boiler bed residuum hydrocracking unit reciprocating pump flush oil recovery system as set forth in claim 1 wherein: The bottom outlet of the waste flushing oil tank is connected with a waste flushing oil tank outlet pipeline and a waste flushing oil tank outlet pump, and the waste flushing oil tank outlet pipeline is connected to an atmospheric storage tank heavy oil tank.
10. A boiling bed residue hydrocracking unit reciprocating pump flush oil recovery system as claimed in claim 1, wherein: The reciprocating pump preheating flushing oil outlet temperature of the hot water cooler is 85°C.