A plumbing filter system

Abstract

The application discloses a pipeline filtering system for filtering liquid or gas materials conveyed in a pipeline to remove solid particles, impurities, suspended matters and the like in the liquid or gas materials. The application comprises an inclined pipeline, a pipeline filter, a phosphoric acid inlet pipe, a concentrated phosphoric acid circulating pump, a flash chamber, a first flange, a second flange, a third flange and a fourth flange; the upper end of the inclined pipeline is provided with the first flange, and the lower end is provided with the second flange; the flash chamber is connected with the upper end of the inclined pipeline through the first flange; the phosphoric acid inlet pipe is connected with the lower end of the inclined pipeline through the second flange; the upper end of the pipeline filter is provided with the third flange, and the lower end is provided with the fourth flange; the pipeline filter is arranged on the phosphoric acid inlet pipe through the third flange and the fourth flange; and the concentrated phosphoric acid circulating pump is arranged at the lower end of the phosphoric acid inlet pipe.

Description

Technical Field

[0001] This application relates to the field of filtration technology, and more particularly to a pipeline filtration system. Background Technology

[0002] In the field of chemical production, concentrated phosphoric acid circulation tanks are equipment that ensures continuous and stable operation in the concentrated phosphoric acid production process, playing an important role in the production process.

[0003] In practical applications, concentrated phosphoric acid circulating tanks, due to the strong acidity of concentrated phosphoric acid, experience severe corrosion in the later stages of use. The tank walls and welds gradually thin under long-term corrosion, and the top, due to vapor phase corrosion, becomes the first point of leakage. Frequent leaks not only require significant manpower and resources for repairs, but also increase maintenance costs.

[0004] Furthermore, internal components such as the filter screen in the concentrated phosphoric acid circulation tank are also affected by corrosion. The welds and bolts of internal components are also corroded, making these parts prone to detachment during operation. When these detached parts enter the concentrated phosphoric acid circulation pump, they can cause pump malfunctions, leading to equipment damage. Replacing the circulation tank requires a long time and is extremely costly, severely impacting the production efficiency of concentrated phosphoric acid. Utility Model Content

[0005] This application provides a pipeline filtration system, including: an inclined pipe, a pipeline filter, a phosphoric acid inlet pipe, a concentrated phosphoric acid circulation pump, a flash chamber, a first flange, a second flange, a third flange, and a fourth flange; The inclined pipe is provided with the first flange at its upper end and the second flange at its lower end; The flash chamber is connected to the upper end of the inclined pipe via the first flange; The phosphoric acid inlet pipe is connected to the lower end of the inclined pipe via the second flange; The pipeline filter is provided with the third flange at its upper end and the fourth flange at its lower end; The pipeline filter is installed on the phosphoric acid inlet pipe via the third flange and the fourth flange; The concentrated phosphoric acid circulating pump is located at the lower end of the phosphoric acid inlet pipe.

[0006] Optionally, the inclined pipe includes a first straight pipe section, a second inclined pipe section, and a third straight pipe section; The upper end of the second inclined pipe is connected to the first straight pipe, and the lower end is connected to the third straight pipe.

[0007] Optionally, a return acid pipe is provided on one side of the first straight pipe, and the return acid pipe is used to return the liquid in the inclined pipe.

[0008] Optionally, a cleaning pipe is provided on one side of the second inclined section of the pipe, and the cleaning pipe is used to clean the inclined pipe.

[0009] Optionally, a support frame is provided on one side of the second inclined pipe, the support frame being used to support the inclined pipe and the flash chamber.

[0010] Optionally, a cleaning inlet is provided on one side of the pipeline filter; A drain outlet is provided at the bottom of one side of the pipeline filter.

[0011] Optionally, a flow regulating valve is provided on one side of the inlet of the phosphoric acid inlet pipe, the flow regulating valve being used to regulate the flow rate entering the inclined pipe.

[0012] Optionally, the first flange and the second flange are connected to the inclined pipe by welding; The third flange and the fourth flange are connected to the pipeline filter by welding.

[0013] Optionally, the inclined pipe is made of 2507 duplex stainless steel.

[0014] Optionally, the first flange, the second flange, the third flange, the fourth flange, the acid return pipe, and the cleaning pipe are made of 316L stainless steel.

[0015] As can be seen from the above technical solutions, this application has the following advantages: The inclined pipes are installed on the pipeline filtration system via the first and second flanges. The inclined design reduces the contact area between the volatile gases from the phosphoric acid and the pipe, effectively slowing down the corrosion rate of the pipe walls and welds, extending the overall service life of the equipment, and reducing maintenance costs. The pipeline filters are installed on the phosphoric acid inlet pipe via the third and fourth flanges. These filters intercept lumpy crystals and detached metal parts from the concentrated phosphoric acid, reducing the amount of impurities entering the concentrated phosphoric acid circulation pump and thus reducing the probability of pump malfunctions caused by impurities. When the inclined pipes or pipeline filters need repair or replacement, only the corresponding flanges need to be removed for quick repair or replacement. The installation of inclined pipes and pipeline filters extends equipment life, reduces equipment maintenance costs, improves maintenance efficiency, and greatly improves the production efficiency of concentrated phosphoric acid. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the pipeline filtration system provided in this application. Detailed Implementation

[0017] To address the aforementioned technical problems, this application provides a pipeline filtration system for filtering liquid or gaseous materials transported in pipelines, removing solid particles, impurities, suspended matter, etc., from the liquid or gaseous materials, and preventing equipment blockage and wear.

[0018] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and other terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to describe the relative positional relationship between the components or parts and do not specifically limit the specific installation orientation of each component or part.

[0019] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0020] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0021] Furthermore, the structures, proportions, sizes, etc., drawn in the accompanying drawings of this application are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0022] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] This application provides an embodiment of a pipeline filtration system. Please refer to [link / reference]. Figure 1 , Figure 1The schematic diagram of the pipeline filtration system provided in this application includes: an inclined pipe 1, a pipeline filter 2, a phosphoric acid inlet pipe 3, a concentrated phosphoric acid circulation pump 4, a flash chamber 5, a first flange 6, a second flange 7, a third flange 8, and a fourth flange 9. The upper end of the inclined pipe 1 is provided with a first flange 6, and the lower end is provided with a second flange 7; The inclined pipe 1 is made of 2507 duplex stainless steel. It is installed at an angle, with a first flange 6 installed at the upper end and a second flange 7 installed at the lower end, connected by welding. The first flange 6 and the second flange 7 provide interfaces for connecting other equipment. The inclined installation of the inclined pipe 1 reduces the resistance of phosphoric acid within the pipe, decreases the contact area between the volatilized phosphoric acid gas and the pipe 1, and effectively slows down the corrosion rate of the pipe wall and welds.

[0024] The flash chamber 5 is connected to the upper end of the inclined pipe 1 via the first flange 6; A phosphoric acid-resistant polytetrafluoroethylene (PTFE) gasket is placed between the flash chamber 5 and the first flange 6 at the upper end of the inclined pipe 1. M16 high-strength bolts and matching nuts are used for connection to ensure a tight connection of the flash chamber 5 and prevent air and liquid leakage. The flash chamber 5 is mainly used to reduce the pressure of phosphoric acid, causing some of the water in the phosphoric acid to rapidly vaporize. During the flash evaporation process, phosphoric acid flows from the inclined pipe 1 into the flash chamber 5. The sudden drop in pressure causes the water to flash into steam, concentrating the phosphoric acid and removing some volatile impurities, thus improving the purity of the phosphoric acid.

[0025] Phosphoric acid inlet pipe 3 is connected to the lower end of inclined pipe 1 via second flange 7; A phosphoric acid corrosion-resistant PTFE gasket is placed between the phosphoric acid inlet pipe 3 and the second flange 7 at the lower end of the inclined pipe 1. M16 high-strength bolts and matching nuts are used for connection to ensure a tight connection of the phosphoric acid inlet pipe 3 and prevent phosphoric acid leakage. The phosphoric acid inlet pipe 3 is the channel for phosphoric acid to enter the system. Connected to the lower end of the inclined pipe 1 via the second flange 7, it not only safely delivers phosphoric acid but also provides support for the installation of the pipeline filter 2 and the concentrated phosphoric acid circulation pump 4.

[0026] The pipeline filter 2 is provided with a third flange 8 at the upper end and a fourth flange 9 at the lower end. The pipeline filter 2 is installed on the phosphoric acid inlet pipe 3 through the third flange 8 and the fourth flange 9. A third flange 8 is installed at the upper end of the pipeline filter 2, and a fourth flange 9 is installed at the lower end. The pipeline filter 2 is then installed on the phosphoric acid inlet pipe 3 via the third flange 8 and the fourth flange 9. Sealing gaskets are installed at the corresponding positions of the third flange 8 and the fourth flange 9 of the pipeline filter 2 and connected using M12 bolts. The pipeline filter 2 is used to remove solid particles and impurities contained in the phosphoric acid. During the filtration process, phosphoric acid enters through the inlet of the pipeline filter 2, is filtered by the filter element to intercept impurities, and the purified phosphoric acid flows out from the outlet of the pipeline filter 2, thus achieving phosphoric acid filtration.

[0027] The concentrated phosphoric acid circulation pump 4 is located at the lower end of the phosphoric acid inlet pipe 3.

[0028] The concentrated phosphoric acid circulating pump 4 is installed at the lower end of the phosphoric acid inlet pipe 3, providing power for the circulation of phosphoric acid within the system. By adjusting the pump speed, the flow rate and pressure of phosphoric acid can be controlled, ensuring a stable circulation speed of phosphoric acid within the system and guaranteeing the smooth operation of processes such as filtration and flash evaporation.

[0029] In this embodiment, the inclined pipe 1 is installed on the pipeline filtration system via the first flange 6 and the second flange 7. The inclined pipe 1 reduces the contact area between the volatile gases of phosphoric acid and the pipe itself, effectively slowing down the corrosion rate of the pipe wall and welds, extending the overall service life of the equipment, and reducing maintenance costs. The pipeline filter 2 is installed on the phosphoric acid inlet pipe 3 via the third flange 8 and the fourth flange 9. The pipeline filter 2 can intercept lumpy crystals and detached metal parts in concentrated phosphoric acid, reducing the amount of impurities entering the concentrated phosphoric acid circulation pump 4, thereby reducing the probability of the concentrated phosphoric acid circulation pump 4 malfunctioning due to impurities. When the inclined pipe 1 or the pipeline filter 2 needs maintenance or replacement, only the corresponding flange needs to be removed for quick repair or replacement. The installation of the inclined pipe 1 and the pipeline filter 2 extends the equipment's service life, reduces equipment maintenance costs, improves maintenance efficiency, and greatly improves the production efficiency of concentrated phosphoric acid.

[0030] In an optional embodiment, the inclined pipe 1 includes a first straight pipe section, a second inclined pipe section, and a third straight pipe section; the upper end of the second inclined pipe section is connected to the first straight pipe section, and the lower end is connected to the third straight pipe section.

[0031] In this embodiment, there are a first straight pipe section, a second inclined pipe section, and a third straight pipe section. The first and third straight pipe sections need to be positioned horizontally, and the second inclined pipe section is installed at a specific inclination angle. The upper end of the second inclined pipe section is connected to the first straight pipe section by welding, and the lower end is connected to the third straight pipe section by welding. At the same time, a first flange 6 is welded to the upper end of the first straight pipe section, and a second flange 7 is welded to the lower end of the third straight pipe section.

[0032] In an optional embodiment, a return acid pipe 10 is provided on one side of the first straight pipe, and the return acid pipe 10 is used to return the liquid in the inclined pipe 1.

[0033] In this embodiment, the acid return pipe 10 is made of 316L stainless steel. The acid return pipe 10 is welded to one side of the first straight pipe section. The straight pipe structure of the acid return pipe 10 facilitates the smooth flow of phosphoric acid within the pipe. The acid return pipe 10 can return a portion of the liquid within the inclined pipe 1, reducing the amount of new material replenishment and conveying energy consumption, thus achieving material recycling.

[0034] In an optional embodiment, a cleaning pipe 11 is provided on one side of the second inclined pipe, and the cleaning pipe 11 is used to clean the inclined pipe 1.

[0035] In this embodiment, the cleaning pipe 11 is made of 316L stainless steel and is welded to one side of the second inclined pipe section. One end of the cleaning pipe 11 is connected to the second inclined pipe section, and the other end is provided with a connection interface for connecting to external cleaning equipment. The interface type is usually a flange connection or a quick coupling connection. During the operation of the pipeline filtration system, solid particles, crystals, and other impurities from phosphoric acid easily adhere to the inner wall of the inclined pipe 1. Over time, the accumulation of these impurities will reduce the flow area of ​​the pipeline, affect the phosphoric acid flow rate and flow rate, and even cause pipeline blockage. The cleaning pipe 11 can periodically flush the inside of the inclined pipe 1, using high-pressure water flow or cleaning fluid to wash away the impurities. The cleaning pipe 11 removes impurities from the inclined pipe 1 in a timely manner, extending the service life of the inclined pipe 1.

[0036] In an optional embodiment, a support frame 12 is provided on one side of the second inclined pipe, the support frame 12 being used to support the inclined pipe 1 and the flash chamber 5.

[0037] In this embodiment, the support frame 12 is welded to one side of the inclined pipe 1. During operation, the inclined pipe 1 and the flash chamber 5 have a large weight. As a load-bearing structure, the support frame 12 can evenly transfer the weight of the equipment to the foundation ground, preventing the inclined pipe 1 from sinking or deforming due to gravity and extending the service life of the inclined pipe 1.

[0038] In an optional embodiment, a cleaning inlet is provided on one side of the pipeline filter 2; a drain outlet 13 is provided at the bottom of one side of the pipeline filter 2.

[0039] In this embodiment, during operation, the pipeline filter 2 intercepts solid particles, crystals, and other impurities in phosphoric acid. A valve assembly is installed on the drain outlet 13. Periodically opening the valve assembly allows impurities accumulated in the pipeline filter 2 to be discharged from the system, reducing the risk of clogging and preventing excessive accumulation of impurities within the filter, which could affect the filtration effect.

[0040] In an optional embodiment, a flow regulating valve 14 is provided on one side of the inlet of the phosphoric acid inlet pipe 3. The flow regulating valve 14 is used to regulate the flow rate entering the inclined pipe 1.

[0041] In this embodiment, by adjusting the opening of the flow regulating valve 14, the flow rate of the fluid in the pipeline can be changed, thereby affecting the pressure of the pipeline filtration system. When the pressure in the pipeline filtration system is too high, the valve opening is appropriately reduced to decrease the flow rate, thereby lowering the pressure; when the pressure is too low, the valve opening is increased to increase the flow rate, thereby increasing the pressure. In practical applications, different flow rates of phosphoric acid may be required to enter the inclined pipeline 1 for reaction or treatment. The flow regulating valve 14 controls the flow rate to ensure that the fluid flows within a suitable flow velocity range, protecting equipment such as the pipeline filter 2 and the concentrated phosphoric acid circulation pump 4.

[0042] In an optional embodiment, the first flange 6 and the second flange 7 are connected to the inclined pipe 1 by welding; the third flange 8 and the fourth flange 9 are connected to the pipe filter 2.

[0043] In this embodiment, the first flange 6, the second flange 7, the third flange 8, and the fourth flange 9 are made of 316L stainless steel. The two ends of the inclined pipe 1 and the pipe filter 2 are connected by the first flange 6, the second flange 7, the third flange 8, and the fourth flange 9, respectively. When the inclined pipe 1 or the pipe filter 2 reaches the end of its service life, it can be directly replaced, reducing the replacement time.

[0044] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipeline filtration system, characterized in that, include: Inclined pipe, pipe filter, phosphoric acid inlet pipe, concentrated phosphoric acid circulating pump, flash chamber, first flange, second flange, third flange and fourth flange; The inclined pipe is provided with the first flange at its upper end and the second flange at its lower end; The flash chamber is connected to the upper end of the inclined pipe via the first flange; The phosphoric acid inlet pipe is connected to the lower end of the inclined pipe via the second flange; The pipeline filter is provided with the third flange at its upper end and the fourth flange at its lower end; The pipeline filter is installed on the phosphoric acid inlet pipe via the third flange and the fourth flange; The concentrated phosphoric acid circulating pump is located at the lower end of the phosphoric acid inlet pipe.

2. The pipeline filtration system according to claim 1, characterized in that, The inclined pipe includes a first straight pipe section, a second inclined pipe section, and a third straight pipe section; The upper end of the second inclined pipe is connected to the first straight pipe, and the lower end is connected to the third straight pipe.

3. The pipeline filtration system according to claim 2, characterized in that, A return acid pipe is provided on one side of the first straight pipe. The return acid pipe is made of 316L stainless steel and is used to return the liquid in the inclined pipe.

4. The pipeline filtration system according to claim 2, characterized in that, A cleaning pipe is provided on one side of the second inclined pipe. The cleaning pipe is made of 316L stainless steel and is used to clean the inclined pipe.

5. The pipeline filtration system according to claim 2, characterized in that, A support frame is provided on one side of the second inclined pipe, which is used to support the inclined pipe and the flash chamber.

6. The pipeline filtration system according to claim 2, characterized in that, A cleaning inlet is provided on one side of the pipeline filter; A drain outlet is provided at the bottom of one side of the pipeline filter.

7. The pipeline filtration system according to claim 1, characterized in that, A flow regulating valve is provided on one side of the inlet of the phosphoric acid inlet pipe, and the flow regulating valve is used to regulate the flow rate entering the inclined pipe.

8. The pipeline filtration system according to claim 1, characterized in that, The first flange and the second flange are connected to the inclined pipe by welding; The third flange and the fourth flange are connected to the pipeline filter by welding.

9. The pipeline filtration system according to claim 1, characterized in that, The inclined pipe is made of 2507 duplex stainless steel.

10. The pipeline filtration system according to any one of claims 1 to 9, characterized in that, The first flange, the second flange, the third flange, and the fourth flange are made of 316L stainless steel.

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