A pressurized filtration system for an organic liquid feed

Abstract

The utility model relates to a kind of pressurized filtration systems for organic liquid supply, including liquid inlet pipeline and liquid discharge pipeline;Pressurizing unit and filtration unit are sequentially arranged between liquid inlet pipeline and liquid discharge pipeline;Pressurizing unit includes two pressurizing pipelines, two liquid inlet pipelines are connected with two pressurizing pipelines respectively;Filtering unit includes two filtering pipelines, two pressurizing pipelines are connected with two filtering pipelines respectively through filtering liquid inlet pipeline, and two filtering pipelines are connected with liquid discharge pipeline respectively.The utility model effectively balances the pressure and flow of double-path system by the design of balance communication pipeline, improves the stability and efficiency of overall operation.

Description

Technical Field

[0001] This utility model relates to the field of liquid transportation technology, and in particular to a pressurized filtration system for supplying organic liquids. Background Technology

[0002] In the production and supply of organic liquids, it is often necessary to pressurize and filter the liquids to ensure the stability of subsequent process steps (such as reaction and mixing) and product quality. Existing technologies typically present the following problems with such systems: System pressure imbalance: When using dual or multiple parallel lines for pressurization and filtration, it is difficult to maintain a balanced pressure between the lines, resulting in uneven flow distribution, excessive load on some pipelines, and reduced overall efficiency.

[0003] The filtration process is prone to interruption: when the filter becomes clogged, the machine needs to be stopped for cleaning or replacement, which affects the continuity of production.

[0004] Safety and environmental risks: Organic liquids may be volatile, flammable or toxic. If residual liquids and vapors are not handled properly during the system evacuation process, they may pose safety and environmental hazards.

[0005] Insufficient protection for oxygen-sensitive materials: For easily oxidized organic liquids, residual oxygen in the system may cause the liquid to deteriorate, while the inert gas protection of conventional systems is often not comprehensive.

[0006] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a pressurized filtration system for organic liquid supply, making it more industrially valuable. Utility Model Content

[0007] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a pressurized filtration system for supplying organic liquids.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A pressurized filtration system for supplying organic liquids includes an inlet pipe and a first outlet pipe; A pressurization unit and a filtration unit are sequentially installed between the liquid inlet pipeline and the first liquid outlet pipeline; The pressurization unit includes two pressurization lines, on which a pressurization pump is installed. Two liquid inlet lines are connected to the two pressurization lines respectively, and the two liquid inlet lines are connected together by a balance connecting line. The filtration unit includes two filtration lines and two pressurized lines connected to the two filtration lines respectively through the filtration inlet line. Filters are installed on the filtration lines. Both filtration lines are connected to the first drain line. Pressure test lines are installed on the side of the filtration inlet line and the first drain line near the filtration unit.

[0009] As a further improvement of this utility model, sampling pipelines are also connected to the two liquid inlet pipelines respectively.

[0010] As a further improvement of this utility model, the first drain pipe is also connected to the first empty branch pipe; the pressurizing pipe located at the rear end of the pressurizing pump is connected to the second empty branch pipe, and the two second empty branch pipes are then connected to the second empty main pipe; the filter is connected to the third exhaust branch pipe, and the two third exhaust branch pipes are then connected to the third exhaust main pipe; the first empty branch pipe, the second empty main pipe, and the third exhaust main pipe are all connected to the empty collection pipe, and the empty collection pipe is then connected to the second drain pipe.

[0011] As a further improvement of this utility model, an air venting silencer is installed on the air venting collection pipeline.

[0012] As a further improvement of this utility model, it also includes a first nitrogen inlet main pipeline, which is connected to a portion of the pressurization pipeline located at the front end of the pressurization pump via two first nitrogen inlet branch pipelines.

[0013] As a further improvement of this utility model, it also includes a second nitrogen inlet main pipeline, which is connected to a portion of the filter pipeline located at the front end of the filter via two second nitrogen inlet branch pipelines.

[0014] As a further improvement of this utility model, it also includes a third nitrogen inlet main pipeline, which is connected to the filter and then to the third exhaust branch pipeline through two third nitrogen inlet branch pipelines respectively.

[0015] As a further improvement of this utility model, the first nitrogen inlet main pipeline, the second nitrogen inlet main pipeline and the third nitrogen inlet main pipeline are all connected to an external nitrogen generator.

[0016] By means of the above solution, this utility model has at least the following advantages: This invention effectively balances the pressure and flow of the dual-path system through the design of the balanced connecting pipeline, thereby improving the overall stability and efficiency of operation.

[0017] This invention, through a dual-path parallel design combined with pressure monitoring, allows the other path to maintain a certain production capacity while one path filter requires maintenance, thereby improving system availability.

[0018] This invention effectively prevents the oxidation and volatilization of organic liquids through a comprehensive nitrogen protection system, reducing safety risks; the centralized venting design makes the discharge of waste gas and waste liquid safer and more environmentally friendly.

[0019] This invention facilitates monitoring of filter status through pressure testing pipelines; provides convenient quality inspection through sampling pipelines; and simplifies system management and maintenance through centralized venting structures.

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a pressurized filtration system for supplying organic liquids according to this utility model; Figure 2 yes Figure 1 Schematic diagram of the intermediate pressurization unit; Figure 3 yes Figure 1 A schematic diagram of the structure of the filter unit.

[0023] The meanings of the labels in the figures are as follows.

[0024] 1. Liquid inlet pipe; 2. Balance connecting pipe; 3. Sampling pipe; 4. Pressurization unit; 5. Filter inlet pipe; 6. Filter unit; 7. First drain pipe; 8. First vent branch pipe; 9. Vent collection pipe; 10. Vent silencer; 11. Second drain pipe; 12. Pressurization pipe; 13. Pressurization pump; 14. First nitrogen inlet main pipe; 15. Second vent branch pipe; 16. Second vent main pipe; 17. Filter pipe; 18. Pressure test pipe; 19. Filter; 20. Second nitrogen inlet main pipe; 21. Second nitrogen inlet branch pipe; 22. Third nitrogen inlet main pipe; 23. Third nitrogen inlet branch pipe; 24. Third exhaust branch pipe; 25. Third exhaust main pipe; 26. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] The first embodiment of this utility model: like Figures 1-3 As shown, a pressurized filtration system for supplying organic liquids according to this embodiment includes an inlet pipe 1 and a first outlet pipe 7, with a pressurized unit 4 and a filtration unit 6 arranged sequentially between the inlet pipe 1 and the first outlet pipe 7.

[0028] The pressurization unit 4 includes two pressurization lines 12, a pressurization pump 13 is installed on the pressurization lines 12, and two liquid inlet lines 1 are respectively connected to the two pressurization lines 12, and the two liquid inlet lines 1 are connected together by a balance connecting line 2.

[0029] The filter unit 6 includes two filter lines 18, and two pressurized lines 12 are connected to the two filter lines 18 respectively through the filter inlet line 5. A filter 20 is installed on the filter line 18. Both filter lines 18 are connected to the first drain line 7. A pressure test line 19 is installed on the side of the filter inlet line 5 and the first drain line 7 near the filter unit 6.

[0030] Each of the two liquid inlet lines 1 is also connected to a sampling line 3.

[0031] The first drain line 7 is also connected to the first vent branch line 8; the pressurization line 12 located at the rear end of the pressurization pump 13 is connected to the second vent branch line 16, and the two second vent branch lines 16 are then connected to the second vent main line 17; the filter 20 is connected to the third exhaust branch line 25, and the two third exhaust branch lines 25 are then connected to the third exhaust main line 26; the first vent branch line 8, the second vent main line 17 and the third exhaust main line 26 are all connected to the vent collection line 9, and the vent collection line 9 is then connected to the second drain line 11, and a vent silencer 10 is installed on the vent collection line 9.

[0032] The first nitrogen inlet main pipeline 14 is connected to a portion of the pressurization pipeline 12 located at the front end of the pressurization pump 13 via two first nitrogen inlet branch pipelines 15.

[0033] The second nitrogen inlet main pipe 21 is connected to a portion of the filter pipe 18 located at the front end of the filter 20 via two second nitrogen inlet branch pipes 22.

[0034] The third nitrogen intake main pipe 23 is connected to the filter 20 via two third nitrogen intake branch pipes 24, and then to the third exhaust branch pipe 25.

[0035] The first nitrogen inlet main line 14, the second nitrogen inlet main line 21 and the third nitrogen inlet main line 23 are all connected to an external nitrogen generator.

[0036] In summary, the core improvement of this embodiment lies in: 1. Dual-path balanced design: The core of the system consists of two parallel process lines (including inlet line, pressurization line, and filtration line).

[0037] The key feature is that the two inlet lines are connected by a balancing conduit. This conduit effectively balances the pressure of the two inlet lines, promotes even flow distribution, and prevents excessive load on any single line.

[0038] 2. Pressurization and filtration unit: The pressurization unit contains two pressurization lines, each equipped with a pressurization pump to provide the power for liquid delivery. Pumps capable of providing constant flow rate and pressure can be used, such as peristaltic pumps in certain applications.

[0039] The filtration unit contains two filtration lines, each equipped with a filter. The filters can be membrane filters or bag filters, selected based on the required filtration precision.

[0040] 3. Centralized exhaust system: The system is designed with an integrated venting network: the first drain line 7 is connected to the first venting branch line; the pressurization line (rear end of the pressurization pump) is connected to the second venting branch line and merges into the second venting main line; the filter is connected to the third exhaust branch line and merges into the third exhaust main line.

[0041] All the aforementioned venting pipelines eventually converge into a single venting main pipeline, which is then equipped with a venting silencer before discharging into a second drainage pipeline 11 (such as a waste liquid collection system). This centralized treatment method reduces leak points and lowers noise and environmental pollution.

[0042] 4. Nitrogen protection throughout the entire process: The system is equipped with three independent nitrogen supply lines: The first path passes through the first nitrogen inlet main pipeline and branch pipelines, entering the pressurization pipeline at the front end of the pressurization pump, and expels oxygen from the pump and upstream pipelines.

[0043] The second path enters the filter pipe at the front end of the filter through the second nitrogen inlet main pipe and branch pipe, protecting the liquid before the filter.

[0044] The third path, through the third nitrogen inlet main line and branch lines, leads directly to the filter itself. It can be used to purge the filter cake or assist in liquid discharge and helps maintain an inert environment inside the filter.

[0045] All nitrogen pipelines are connected to an external nitrogen generator, achieving full-process inert gas coverage from liquid supply to filtration and venting.

[0046] 5. Security and monitoring design: Pressure test lines (which can be connected to pressure gauges) are installed on the side of the filter inlet line and the first outlet line 7 near the filter unit to monitor the pressure changes before and after filtration in real time and to determine the filter blockage.

[0047] Each of the two inlet pipes is connected to a sampling pipe, which facilitates sampling and testing of the liquid quality at any time.

[0048] The second embodiment of this utility model: like Figures 1-3 As shown, the pressurized filtration system for supplying organic liquids in this embodiment mainly consists of two parallel processing lines, a nitrogen protection system, and a centralized venting system.

[0049] 1. Liquid flow path: The organic liquid enters the system through two inlet lines 1. These two inlet lines 1 are connected before the pump via a balancing connecting line 2 to balance the pressure. The liquid is pressurized by a pressurization unit 4, which includes two pressurization lines 12, on which a pressurization pump 13 (e.g., a peristaltic pump or other type of pump capable of providing a stable flow rate) is installed. The pressurized liquid then enters a filtration unit 6 through a filter inlet line 5. The filtration unit 6 includes two filtration lines 18, on which filters 20 (e.g., a membrane filter with high pressure resistance) are installed. The filtered, clean liquid flows into a first drain line 7 and is then transported to the next process step.

[0050] 2. Nitrogen protection system: First nitrogen supply: originates from the first nitrogen inlet main pipe 14, and is injected into the pressurization pipe 12 at the front end of the pressurization pump 13 through the first nitrogen inlet branch pipe 15, replacing the air in this area.

[0051] The second nitrogen supply comes from the second nitrogen inlet main pipe 21 and is injected into the filter pipe 18 at the front end of the filter 20 through the second nitrogen inlet branch pipe 22.

[0052] The third nitrogen supply line: originates from the third nitrogen intake main line 23, is directly connected to the filter 20 via the third nitrogen intake branch line 24, and is associated with its exhaust line (third exhaust branch line 25).

[0053] 3. Drainage system: The system features multi-point draining and final aggregation: The first drain pipe 7 connects to the first empty branch pipe 8.

[0054] The pressurization pipeline 12 at the rear end of the pressurization pump 13 is connected to the second drainage branch pipeline 16 and merges into the second drainage main pipeline 17.

[0055] The filter 20 is connected to the third exhaust main line 26 via the third exhaust branch line 25.

[0056] The first vent branch line 8, the second vent main line 17, and the third vent main line 26 all eventually connect to the vent collection line 9. This collection line is equipped with a vent silencer 10, and its end connects to a dedicated second drainage line 11 (such as a waste liquid recovery system).

[0057] 4. Monitoring and Sampling: Both the inlet filter line 5 and the first outlet filter line 7 are equipped with pressure test lines 19 (for installing pressure gauges) near the filter unit to monitor the filtration pressure drop.

[0058] Sampling lines 3 are installed on the two liquid inlet lines 1 for sampling and analysis.

[0059] A brief description of the working process in this embodiment: System preparation: Start the external nitrogen generator to supply nitrogen to the first, second, and third nitrogen inlet mains. Nitrogen is sequentially introduced into each pipeline and container to displace the air in the system. At this time, the valve on the venting manifold 9 can be briefly opened to release the displaced gas.

[0060] Feeding and pressurization: The organic liquid enters the system through two inlet pipes 1, and the balancing connecting pipe 2 automatically balances the feed pressure of the two lines. The pressurizing pump 13 starts, pressurizes the liquid, and delivers it to the filtration unit.

[0061] Filtration and Monitoring: The pressurized liquid enters the filter 20 through the inlet pipe 5, where solid impurities are trapped. The filtered clean liquid flows into the first outlet pipe 7 for output. The operator monitors the pressure difference before and after the filter through the pressure test pipe 19 to determine the filtration status.

[0062] Filter maintenance and switching: When a filter 20 becomes clogged, causing its inlet pressure to rise to the set value, the flow of liquid in that path can be reduced or cut off via a valve, and the filter can be purged using a third-path nitrogen gas. During this maintenance, another filter can continue to operate, ensuring uninterrupted system operation.

[0063] Drainage: During normal shutdown, maintenance or emergency, residual liquids and gases in each part of the system can be safely discharged to the second drain line 11 through their respective drain branches, via the drain manifold 9 and the drain silencer 10.

[0064] Sampling: During operation, liquid samples can be extracted at any time through sampling pipeline 3 for analysis.

[0065] This embodiment effectively solves many problems in the prior art through ingenious pipeline design and comprehensive functional configuration, and is particularly suitable for high-standard organic liquid treatment applications that are sensitive to oxygen and require continuous and stable operation.

[0066] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0067] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0068] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pressurized filtration system for supplying organic liquids, comprising an inlet pipe (1) and a first outlet pipe (7); Its features are: A pressurizing unit (4) and a filtering unit (6) are sequentially arranged between the liquid inlet pipe (1) and the first liquid outlet pipe (7). The pressurizing unit (4) includes two pressurizing pipelines (12), a pressurizing pump (13) is installed on the pressurizing pipelines (12), and the two liquid inlet pipelines (1) are respectively connected to the two pressurizing pipelines (12), and the two liquid inlet pipelines (1) are connected together by a balance connecting pipeline (2); The filter unit (6) includes two filter pipes (18). The two pressurized pipes (12) are connected to the two filter pipes (18) respectively through the filter inlet pipe (5). A filter (20) is installed on the filter pipe (18). Both filter pipes (18) are connected to the first drain pipe (7). A pressure test pipe (19) is installed on the side of the filter inlet pipe (5) and the first drain pipe (7) near the filter unit (6).

2. The pressurized filtration system for supplying organic liquids as described in claim 1, characterized in that, Each of the two liquid inlet lines (1) is also connected to a sampling line (3).

3. The pressurized filtration system for supplying organic liquids as described in claim 1, characterized in that, The first drain pipe (7) is also connected to the first vent branch pipe (8); the pressurization pipe (12) located at the rear end of the pressurization pump (13) is connected to the second vent branch pipe (16), and the two second vent branch pipes (16) are connected to the second vent main pipe (17); the filter (20) is connected to the third exhaust branch pipe (25), and the two third exhaust branch pipes (25) are connected to the third exhaust main pipe (26); the first vent branch pipe (8), the second vent main pipe (17) and the third exhaust main pipe (26) are all connected to the vent collection pipe (9), and the vent collection pipe (9) is connected to the second drain pipe (11).

4. The pressurized filtration system for supplying organic liquids as described in claim 3, characterized in that, An air venting silencer (10) is installed on the air venting manifold (9).

5. The pressurized filtration system for supplying organic liquids as described in claim 1, characterized in that, It also includes a first nitrogen inlet main pipeline (14), which is connected to a portion of the pressurization pipeline (12) located at the front end of the pressurization pump (13) via two first nitrogen inlet branch pipelines (15).

6. The pressurized filtration system for supplying organic liquids as described in claim 1, characterized in that, It also includes a second nitrogen inlet main pipeline (21), which is connected to a portion of the filter pipeline (18) located at the front end of the filter (20) via two second nitrogen inlet branch pipelines (22).

7. The pressurized filtration system for supplying organic liquids as described in claim 1, characterized in that, It also includes a third nitrogen intake main pipeline (23), which is connected to the filter (20) and then to the third exhaust branch pipeline (25) through two third nitrogen intake branch pipelines (24).

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