Refined oil filtering system

Abstract

The utility model relates to the technical field of chemical engineering, in particular to a refined oil filtering system which comprises a reforming reactor feeding pipeline, a high-pressure separation tank, a delivery pump and a filtering pipeline, the high-pressure separation tank is connected with a reforming reactor incoming material pipeline, the top of the high-pressure separation tank is connected with a torch pipeline, the bottom of the high-pressure separation tank is connected with a high-pressure separation tank discharging pipeline, and the high-pressure separation tank discharging pipeline is sequentially provided with a flow regulating valve and a regulating double valve; the delivery pump is connected with a discharge pipeline of the high-pressure separation tank; one end of a filtering pipeline is connected to the part, between the flow regulating valve and the regulating double valve, of the discharging pipeline of the high-pressure separation tank, the other end of the filtering pipeline is connected to the part, between the regulating double valve and the delivery pump, of the discharging pipeline of the high-pressure separation tank, and a filter is arranged on the filtering pipeline; the filter is additionally arranged between the high-pressure separation tank and the delivery pump, so that catalyst dust and fragments of a foam breaking net of the high-pressure separation tank are effectively filtered, unnecessary fluctuation during production can be reduced, and even abnormal shutdown is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to a refined oil filtering system. Background Art

[0002] Since the reforming catalyst is continuously regenerated, the catalyst circulates uninterruptedly in the reactor. The crushing strength of the catalyst decreases in the mid-term, resulting in an increase in dust. The increased dust passes through the catalyst net along with the oil, and part of it will block the back-end oil pump filter, causing platinum metal to be lost along with the dust. In addition, the foam breaking net of the reforming high-resolution tank is made of metal wire, which is continuously corroded by oil and gas during operation and falls to the bottom, carried to the back-end oil pump filter, blocking the oil pump, and in severe cases causing the device to shut down in an emergency. Utility Model Content

[0003] In view of the defects of the prior art, the utility model provides a refined oil filtration system, which adds a filter between the high-separation tank and the external pump to effectively filter catalyst dust and high-separation tank foam breaking net fragments, thereby reducing unnecessary fluctuations during production and even avoiding abnormal shutdowns.

[0004] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is a refined oil filtration system, which includes a reforming reactor incoming pipeline, a high-resolution tank, an external delivery pump and a filter pipeline; the high-resolution tank is connected to the reforming reactor incoming pipeline, the top of the high-resolution tank is connected to the flare pipeline, the bottom of the high-resolution tank is connected to the high-resolution tank discharge pipeline, and the high-resolution tank discharge pipeline is sequentially provided with a flow regulating valve and a regulating double valve; the external delivery pump is connected to the high-resolution tank discharge pipeline; one end of the filter pipeline is connected to the high-resolution tank discharge pipeline between the flow regulating valve and the regulating double valve, the other end of the filter pipeline is connected to the high-resolution tank discharge pipeline between the regulating double valve and the external delivery pump, and a filter is provided on the filter pipeline.

[0005] Furthermore, an inlet double valve is provided on the filter pipeline upstream of the filter; and an outlet double valve is provided on the filter pipeline downstream of the filter.

[0006] Furthermore, the flare pipeline is provided with a first regulating valve, the flare pipeline is provided with a bypass pipeline, and the bypass pipeline is provided with a second regulating valve.

[0007] Furthermore, the filter adopts multi-stage filtration, and the interior of the filter is a 304 metal multi-stage screen.

[0008] Furthermore, the 304 metal multi-stage screen is attached with a micron-grade filter cloth.

[0009] The beneficial effects of the utility model are as follows: adding a filter pipeline between the high separation tank and the external pump can effectively filter the catalyst dust and the fragments of the foam breaking net of the high separation tank, which can reduce unnecessary fluctuations during production and even avoid abnormal shutdowns. It should be noted that since the foam breaking net does not have the function of filtering the reforming catalyst dust, the precious metal dust that is lost can be filtered out while filtering the fragments of the foam breaking net, which can reduce the operating losses of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a process flow chart of a refined oil filtration system in one embodiment of the utility model;

[0011] Figure 2 This is a process flow chart of a refined oil filtration system in another embodiment of the utility model;

[0012] In the figure:

[0013] 100. Reforming reactor incoming pipeline,

[0014] 200, high score tank,

[0015] 300, external pump,

[0016] 400, first filter pipeline, 410, first inlet double valve, 420, first outlet double valve,

[0017] 500, flare pipeline, 510, first regulating valve, 520, bypass pipeline, 521, second regulating valve,

[0018] 600, high separation tank discharge pipeline, 610, flow control valve, 620, regulating double valve,

[0019] 700, a first filter, 710, a first differential pressure gauge,

[0020] 800, second filter pipeline, 810, second inlet double valve, 820, second outlet double valve,

[0021] 900. A second filter. 910. A second differential pressure gauge. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] See also Figure 1In one embodiment of the utility model, a refined oil filtration system comprises a reforming reactor feed pipeline 100, a high-resolution tank 200, an external delivery pump 300 and a first filter pipeline 400; the high-resolution tank 200 is connected to the reforming reactor feed pipeline 100, the top of the high-resolution tank 200 is connected to a flare pipeline 500, the bottom of the high-resolution tank 200 is connected to a high-resolution tank discharge pipeline 600, and a flow regulating valve 610 and a regulating double valve 620 are sequentially arranged on the high-resolution tank discharge pipeline 600; the external delivery pump 300 is connected to the high-resolution tank discharge pipeline 600; one end of the first filter pipeline 400 is connected to the high-resolution tank discharge pipeline 600 between the flow regulating valve 610 and the regulating double valve 620, the other end of the first filter pipeline 400 is connected to the high-resolution tank discharge pipeline 600 between the regulating double valve 620 and the external delivery pump 300, and a first filter 700 is arranged on the first filter pipeline 400.

[0024] The above-mentioned refined oil filtration system adds a first filter pipeline 400 between the high-resolution tank 200 and the external delivery pump 300, which effectively filters the catalyst dust and the foam-breaking net fragments of the high-resolution tank 200, which can reduce unnecessary fluctuations during production and even avoid abnormal shutdowns. It should be noted that since the foam-breaking net does not have the function of filtering the reforming catalyst dust, the precious metal dust that is lost can be filtered out while filtering the foam-breaking net fragments, which can reduce the operating losses of the device.

[0025] In one embodiment, a first inlet double valve 410 is disposed on the first filter line 400 upstream of the first filter 700 ; a first outlet double valve 420 is disposed on the first filter line 400 downstream of the first filter 700 .

[0026] In one embodiment, a first regulating valve 510 is disposed on the flare pipeline 500 , a bypass pipeline 520 is disposed on the flare pipeline 500 , and a second regulating valve 521 is disposed on the bypass pipeline 520 .

[0027] In one embodiment, the first filter 700 adopts multi-stage filtration, and the interior of the first filter 700 is a 304 metal multi-stage screen.

[0028] In one embodiment, a micron-grade filter cloth is attached to the 304 metal multi-stage screen.

[0029] See also Figure 2 In one embodiment, one end of the second filter pipeline 800 is connected to the high-resolution tank discharge pipeline 600 between the flow regulating valve 610 and the regulating double valve 620, and the other end of the second filter pipeline 800 is connected to the high-resolution tank discharge pipeline 600 between the regulating double valve 620 and the external delivery pump 300, and a second filter 900 is arranged on the second filter pipeline 800.

[0030] In one embodiment, a second inlet double valve 810 is disposed on the second filter line 800 upstream of the second filter 900 ; a second outlet double valve 820 is disposed on the second filter line 800 downstream of the second filter 900 .

[0031] In one embodiment, the first filter 700 and the second filter 900 are operated in a start-up and standby mode. When the pressure difference of the first filter 700 is higher than 30Kpa, the other filter is switched to operate on site. At this time, the filter 700 with high pressure difference is cleaned, the debris and dust are separated, and the dust is stored separately for the recovery of platinum in the dust in the future. When problems occur in the two multi-stage high-efficiency filters, the original process can be switched to operate.

[0032] On the basis of the above embodiment, the inlet and outlet positions of the first filter 700 are respectively connected to the first differential pressure gauge 710 to monitor the pressure difference before and after the first filter 700 in real time; the inlet and outlet positions of the second filter 900 are respectively connected to the second differential pressure gauge 910 to monitor the pressure difference before and after the second filter 900 in real time. When it is found that the pressure difference of one filter is high, switch to another filter in advance and clean the filter with large pressure difference, which can effectively ensure the safe operation of the machine pump and avoid the risk of interlocking and stopping the device.

[0033] It should be noted that, in specific configuration, the first filter 700 and the second filter 900 can be stainless steel basket filters or stainless steel multi-stage basket filters. For example, basket filters, model SB34-16P. Those skilled in the art can purchase and install them as needed.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

Claims

1. A refined oil filtration system, characterized in that: include Reforming reactor incoming pipeline; A high separation tank is connected to the feed pipeline of the reforming reactor, the top of the high separation tank is connected to a flare pipeline, the bottom of the high separation tank is connected to a high separation tank discharge pipeline, and a flow regulating valve and a regulating double valve are sequentially arranged on the high separation tank discharge pipeline; An external delivery pump connected to the discharge pipeline of the high separation tank; A filter pipeline has one end connected to the high separation tank discharge pipeline between the flow regulating valve and the regulating double valve, and the other end connected to the high separation tank discharge pipeline between the regulating double valve and the external delivery pump, and a filter is arranged on the filter pipeline.

2. A refined oil filtration system according to claim 1, characterized in that: On the filter pipeline, an inlet double valve is arranged upstream of the filter; and on the filter pipeline, an outlet double valve is arranged downstream of the filter.

3. A refined oil filtration system according to claim 1, characterized in that: The flare pipeline is provided with a first regulating valve, the flare pipeline is provided with a bypass pipeline, and the bypass pipeline is provided with a second regulating valve.

4. A refined oil filtration system according to any one of claims 1 to 3, characterized in that: The filter adopts multi-stage filtration, and the interior of the filter is a 304 metal multi-stage screen.

5. A refined oil filtration system according to claim 4, characterized in that: The 304 metal multi-stage screen is provided with a micron-grade filter cloth.

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