Center water outlet vortex single cloth bag filtering system

Abstract

The utility model discloses a center water outlet vortex single cloth bag filtering system which comprises a hollow machine table, and a sealed storage cavity is formed in the hollow part of the machine table and used for storing filtered oil liquid; a mounting platform is arranged on the machine table, and a pump, a first-stage filtering assembly, a cloth bag filtering assembly and a second-stage filtering assembly are fixedly arranged on the mounting platform; a liquid inlet of the pump is connected with the storage cavity through a pipeline, and a detachable filter element is installed at the liquid inlet end of the pipeline and used for preliminarily filtering oil liquid entering the pump body. According to the system, impurities such as solid particles, metal chips and water in oil liquid are effectively removed through a multi-stage filtering assembly and an intelligent control technology, so that the operation efficiency of equipment is improved, the service life of the equipment is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to a center-outlet vortex single-bag filtration system, belonging to the field of oil filtration technology, specifically a high-efficiency filtration system for industrial oil filtration. This technical field mainly involves the cleaning and filtration of oil in mechanical equipment. This system, through multi-stage filtration components and intelligent control technology, effectively removes impurities such as solid particles, metal shavings, and moisture from the oil, thereby improving equipment operating efficiency, extending equipment lifespan, and reducing maintenance costs. Background Technology

[0002] In industrial production and the operation of machinery, oil serves as a crucial medium for lubrication, cooling, and power transmission. Its cleanliness directly impacts equipment operating efficiency and lifespan. However, during use, oil inevitably contaminates with impurities such as solid particles, metal shavings, and moisture. These impurities can lead to accelerated equipment wear, oil circuit blockage, decreased lubrication performance, and even equipment failure. Therefore, oil filtration systems hold significant application value in the industrial field. Currently, common oil filtration systems primarily employ single-stage or multi-stage filtration methods, with common filter components including filter screens, filter elements, and centrifugal separators. While these traditional filtration systems can meet basic filtration requirements to a certain extent, their limitations are becoming increasingly apparent as industrial equipment demands higher oil cleanliness.

[0003] A major problem with traditional filtration systems is their low filtration efficiency, particularly in removing fine particles. For example, single-stage filtration systems typically only filter larger particles, performing poorly on particles smaller than 10 micrometers. This is primarily because single-stage filtration systems have limited filtration precision, and the filter media (such as filter screens or cartridges) have relatively large pore sizes, making it difficult to effectively intercept fine particles. Furthermore, traditional filtration systems are prone to clogging during the filtration process, especially when the oil contains high levels of impurities. Frequent replacement or cleaning of the filter components increases maintenance costs and disrupts continuous operation. This problem stems from the lack of an effective impurity separation mechanism in traditional filtration systems. Solid particles in the oil accumulate directly on the surface of the filter media, leading to a rapid increase in filtration resistance and consequently affecting filtration efficiency.

[0004] Another problem is the lack of real-time monitoring capabilities in traditional filtration systems. In existing technologies, the clogging status of filter components typically requires manual inspection or periodic maintenance. This approach is not only inefficient but can also lead to the filtration system continuing to operate even when severely clogged, thus affecting the normal operation of the equipment. For example, when the filter element is clogged, the oil flow rate drops significantly, but traditional systems cannot monitor this change in real time, causing the equipment to operate with insufficient oil supply, potentially leading to equipment failure. Furthermore, traditional filtration systems usually rely on mechanical pumps for power. Mechanical pumps are prone to wear and failure after prolonged operation, increasing the difficulty of system maintenance and operating costs. Mechanical pumps also have high energy consumption, especially under high flow and high pressure conditions, where energy consumption becomes even more pronounced.

[0005] In recent years, several improved filtration systems have been proposed, such as those combining centrifugal separation technology with filter cartridges, or those driven by air pressure. These improvements have enhanced filtration efficiency to some extent, but some shortcomings remain. For example, while centrifugal separation technology effectively removes larger particles from oil, its effectiveness in removing fine particles is limited, and the equipment is bulky, making it unsuitable for use in space-constrained industrial environments. Although air-driven systems reduce mechanical wear, their filtration efficiency and stability still need further improvement, especially in the filtration of high-viscosity oils, where air pressure often proves ineffective. Furthermore, existing systems are still insufficient in terms of filter component clogging monitoring and automated control, failing to meet the demands of modern industry for efficient and intelligent filtration systems.

[0006] To address the aforementioned issues, developing a novel oil filtration system is of significant practical importance.

[0007] It should be noted that the above background information is provided solely to aid in understanding the inventive concept and technical solution of this utility model, and does not necessarily constitute prior art. In the absence of clear evidence that the above information was disclosed prior to the filing date of this utility model, the aforementioned background information should not be used to evaluate the novelty and inventiveness of this utility model. Utility Model Content

[0008] The purpose of this application is to overcome at least one deficiency in the existing technology and provide a center-outlet vortex single-bag filtration system. This filtration system is highly efficient, intelligent, and easy to maintain. Through a series design of multi-stage filtration components combined with a pneumatically driven filtration method, it significantly improves filtration efficiency and system operational stability. Simultaneously, by incorporating hydraulic and level sensors, and through intelligent controller management, it achieves real-time monitoring and automated control of the system's operating status, ensuring long-term efficient operation of the filtration system. This novel filtration system not only effectively removes fine particles from oil but also reduces maintenance costs, adapts to the needs of different industrial environments, and has broad application prospects and significant economic value.

[0009] To achieve the above objectives, this application discloses a center-outlet vortex single-bag filtration system, which includes a hollow machine base, the hollow part of which forms a sealed storage cavity for storing filtered oil.

[0010] The machine is equipped with an installation platform, on which a pump, a primary filter assembly, a bag filter assembly, and a secondary filter assembly are fixedly installed.

[0011] The pump's inlet is connected to the storage chamber via a pipe. A removable filter element is installed at the inlet end of the pipe to perform preliminary filtration of the oil entering the pump body and remove large particulate impurities.

[0012] The pump's outlet is connected to the inlet of the secondary filter assembly via a pipe. The pipe connection uses a sealing flange to ensure the connection is airtight and allows for fluid flow.

[0013] The operation of the pump is controlled by a controller mounted on the machine base. The controller includes a microprocessor, a storage module, and an input / output interface. The microprocessor is connected to the storage module via a data bus to store and process system operation data. The input / output interface is connected to the level sensor, hydraulic sensor, and pump motor via signal lines to receive sensor signals and output control commands.

[0014] The level sensor is fixed to the inner wall of the storage cavity, and its signal output terminal is connected to the input interface of the controller through a signal line to monitor the oil level in the storage cavity in real time.

[0015] To elaborate further, the primary filtration unit is a vortex separator, whose inlet port is connected to the inlet pipe via a flange connection. The inlet pipe is used to connect the oil to be filtered.

[0016] Furthermore, the liquid outlet of the vortex separator is connected to the liquid inlet of the bag filter assembly via a flange connection, thereby enabling the delivery of oil after primary filtration.

[0017] More specifically, the bag filter assembly includes a tank, a metal filter screen barrel, and filter bags. The top of the tank has an air source interface, which connects to an external air source via an air pipe to provide air pressure to drive the oil through the filter bags. The bottom of the tank has a liquid inlet interface, which connects to the liquid outlet interface of the primary filter assembly via a flange, allowing for oil input. The metal filter screen barrel is fixed inside the tank, and its surface has evenly distributed filter holes to support the filter bags and prevent deformation. The filter bags are nested inside the metal filter screen barrel and are made of multi-layer composite filter cloth, effectively intercepting fine particles in the oil. The top of the tank has a liquid outlet interface, which is inserted into a storage chamber via a pipe, directly outputting the filtered oil into the storage chamber.

[0018] In addition, the secondary filtration assembly includes a filter housing, a removable filter element, and an outlet port. The filter housing has a cylindrical structure with an internal filter element mounting cavity, where the filter element is fixed by threaded or snap-fit ​​connections. The filter element has a multi-layer composite structure, including a pre-filter layer, a high-efficiency filter layer, and a support layer, which can further remove tiny particles from the oil. An inlet port is located at the top of the filter housing, which connects to the pump's outlet via a flange for oil input. The outlet port is located at the bottom of the filter housing and extends to the outside of the system via a pipe for discharging the final filtered clean oil.

[0019] A vent valve is located at the top of the reservoir, used solely to release gas and balance the pressure within the reservoir. Since the bag filter assembly is pressurized with oil via an air source, the air pressure inside the reservoir increases with the oil input. The vent valve effectively regulates this pressure, ensuring system stability. A transparent observation window is located on the side wall of the reservoir, connected to the side wall via a sealing strip, allowing real-time monitoring of the oil condition and the operation of the filter assembly.

[0020] Hydraulic sensors are installed in the inlet pipe of the primary filter assembly, the connecting pipe between the primary and bag filters, and the connecting pipe between the bag and secondary filters. The signal output of the hydraulic sensors is connected to the controller's input interface via a signal line to monitor pressure changes in each pipe in real time. Using the pressure in the inlet pipe as a reference, the controller compares the pressure data from each pipe to determine the blockage status of each filter assembly. When the pressure value of a filter assembly exceeds a preset threshold, the controller issues an alarm signal, prompting the operator to perform maintenance or replace the filter assembly.

[0021] The system works as follows: The oil to be filtered enters the primary filtration assembly (vortex separator) through the inlet pipe. Under centrifugal force, solid impurities are separated and deposited in the impurity collection chamber. The pre-filtered oil is then transported to the bag filter assembly through the outlet port. After entering the bag filter assembly, the oil passes through the filter bags under air pressure, further removing fine particles. The filtered oil is then directly fed into the storage chamber through the outlet port. Because the bag filter assembly pressurizes the oil with air, the air pressure in the storage chamber increases. The exhaust valve automatically discharges excess gas to ensure pressure balance within the storage chamber. The oil in the storage chamber is then pumped to the secondary filtration assembly. After further filtration by the filter element, the clean oil is discharged from the system through the outlet port. The controller monitors the system's operating status in real time using level and hydraulic sensors. When the pressure value of a certain filter assembly exceeds a preset threshold, the controller issues an alarm signal, prompting the operator to maintain or replace the filter assembly.

[0022] This application, through the above technical solution, significantly improves the performance and applicability of the oil filtration system. Compared with the prior art, this application has at least one of the following beneficial effects:

[0023] High-efficiency filtration mechanism: Utilizing a dual-stage filtration design combining a pre-filter vortex filter and a precision bag filter, the filtration accuracy reaches 20 microns, effectively removing metal debris and other solid particles from the oil, ensuring the stability and reliability of equipment operation. This design not only improves filtration efficiency but also reduces the frequency of filter component clogging, lowering maintenance costs.

[0024] Intelligent pressure regulation: By combining a servo motor and a gear pump, the pressure range is automatically adjusted to adapt to different working conditions. Compared to traditional fixed pressure equipment, this design significantly improves the flexibility and applicability of the equipment while reducing energy consumption.

[0025] Multi-specification compatible design: The equipment adopts a modular design, which can accommodate various filtration requirements, eliminating the need for users to purchase multiple units to meet the requirements of different operating conditions. Furthermore, the key components of the equipment have been optimized for longer service life and higher operational stability.

[0026] Real-time monitoring and automated control: By configuring hydraulic and level sensors and combining them with the intelligent management of the controller, real-time monitoring and automated control of the system's operating status are achieved. When the filter components become clogged or the oil flow is abnormal, the system can promptly issue an alarm and take corresponding measures, preventing equipment malfunctions caused by insufficient oil supply.

[0027] Convenient maintenance and low operating costs: The filter components (such as filter elements and filter bags) feature a detachable design, facilitating replacement and cleaning, further reducing maintenance costs. Furthermore, the equipment's compact structure makes it suitable for various industrial environments, meeting the filtration needs of high-viscosity oils and offering broad application prospects.

[0028] In summary, the present application, through its different traditional filtration mechanisms, intelligent control design, and modular structure, significantly improves filtration efficiency, equipment stability, and applicability, while reducing operating and maintenance costs, thus possessing significant technical and economic value.

[0029] The beneficial effects listed above are not exhaustive of all advantages. Other potential beneficial effects and detailed technical implementation methods will be further disclosed in the embodiments or other descriptive sections of this application. Attached Figure Description

[0030] A better understanding of various aspects of this disclosure will be achieved by reading the following detailed description in conjunction with the accompanying drawings. The positions, dimensions, and extents of the structures shown in the drawings, etc., do not always represent actual positions, dimensions, and extents. In the drawings:

[0031] Figure 1 This is a schematic diagram of the structure of one embodiment disclosed in this application.

[0032] Figure 2 This is a schematic diagram of the structure of one embodiment disclosed in this application from another perspective.

[0033] Figure 3 This is a structural schematic diagram of one embodiment disclosed in this application from another perspective. Detailed Implementation

[0034] The present disclosure will now be described with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure more complete and to fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments.

[0035] It should be understood that the same reference numerals denote the same elements in all the accompanying drawings. For clarity, the dimensions of certain features may be modified in the drawings.

[0036] It should be understood that the terminology used in this specification is for describing specific embodiments only and is not intended to limit this disclosure. All terms used in this specification (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. For the sake of brevity and / or clarity, techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail; however, where appropriate, such techniques, methods, and apparatus should be considered part of this specification.

[0037] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items. Example

[0038] This embodiment presents an exemplary structure of a center-outlet vortex single-bag filtration system, designed to efficiently remove impurities such as solid particles, metal shavings, and moisture from oil through multi-stage filtration components and intelligent control technology. This design not only emphasizes efficiency but also considers structural compactness and ease of maintenance.

[0039] See attached document Figures 1 to 3 The core component of the system is a hollow machine 1, which forms a sealed storage cavity 2 inside to store the filtered oil.

[0040] The top of the storage chamber 2 is equipped with an exhaust valve 3, which is connected to the storage chamber 2 by a thread and is used to release excess gas and balance the pressure inside the storage chamber.

[0041] The outer shell of the exhaust valve 3 is made of corrosion-resistant metal, and it contains a spring and a valve core. The exhaust flow is controlled by adjusting the tension of the spring, thereby ensuring that the gas pressure in the storage chamber is within a safe range.

[0042] The sealing design at the top of the storage chamber 2 further ensures airtightness through a rubber sealing ring. The sealing ring is made of high-temperature resistant material and is suitable for the working environment of high-temperature oil.

[0043] A transparent observation window 4 is installed on the side wall of the storage chamber 2. The observation window 4 is fixed with bolts and sealed with a sealing strip. The observation window 4 is made of high-strength tempered glass, which can withstand internal pressure and external impact. Through the observation window 4, the liquid level and color changes of the oil in the storage chamber 2 can be clearly seen, thereby judging the operating status and filtration effect of the system.

[0044] A mounting platform 5 is installed on the machine base 1, and a pump 6, a primary filter assembly 7, a bag filter assembly 8, and a secondary filter assembly 9 are fixedly mounted thereon. These components are connected to the mounting platform 5 by bolts or flanges to ensure stability. The mounting platform 5 is made of high-strength steel and has a corrosion-resistant surface treatment to withstand the high humidity and corrosive substances in industrial environments.

[0045] Pump 6 is a gear pump, whose internal structure includes a pump body, driving gear, driven gear, meniscus, and sealing components. The pump body is made of wear-resistant cast iron, while the internal driving and driven gears are made of precision-machined steel. The gear surfaces are heat-treated to improve wear resistance and service life. The meniscus separates the inlet and outlet chambers and prevents oil backflow during gear operation.

[0046] The inlet of pump 6 is connected to reservoir 2 via a pressure-resistant pipe, and a removable filter element is installed at the inlet end of the pipe. The filter element adopts a composite structure of metal mesh and composite filter cloth, which can efficiently filter larger diameter particulate impurities. The filter element is fixed to the pipe by a screw fastener, which facilitates cleaning and replacement, thereby protecting pump 6 and subsequent filter components.

[0047] The outlet of pump 6 is connected to the inlet of the secondary filter assembly 9 via a flange. Sealing gaskets and fastening bolts ensure a tight seal at the pipe connections to prevent oil leakage.

[0048] The primary filter element 7 is a vortex impurity separator with a conical cavity as its main structure and an internal spiral flow channel. The vortex cavity is made of high-strength aluminum alloy, and the internal spiral flow channel is precision-machined to ensure sufficient centrifugal force is generated when the fluid flows through it. After the oil enters the cavity through the flanged inlet, strong centrifugal force is generated within the spiral flow channel, separating solid impurities and depositing them in the impurity collection chamber at the bottom. The impurity collection chamber is connected to the vortex cavity via a removable bottom cover with a screw-on structure for easy cleaning and leakage prevention via a sealing gasket. The top outlet of the vortex cavity is threaded to the bag filter element 8, thereby delivering the pre-purified oil to the bag filter element 8.

[0049] The bag filter assembly 8 consists of a tank, a metal filter basket, and filter bags. The tank is a cylindrical structure made of stainless steel, with an air source interface at the top. An external air source is connected via a quick-connect fitting to provide pressure to drive the oil through the filter bags. A check valve is installed inside the air source interface to prevent pressure fluctuations from affecting oil flow. The metal filter basket is fixed inside the tank by an internal support frame. Its surface has evenly distributed filter holes to support the filter bags and prevent deformation. The diameter of the filter holes is precisely designed to ensure fluid passage while intercepting most impurities. The filter bags are nested within the metal filter basket and are made of multi-layer composite filter cloth, effectively intercepting fine particles. The filter bags are installed using ring-shaped fixing clips made of high-temperature resistant plastic to ensure no deformation over long-term use. The filtered oil flows into the storage chamber 2 through the outlet interface at the bottom of the tank. A flexible pipe connects the outlet interface to the storage chamber 2 to reduce the impact of vibration on the pipe connection.

[0050] The secondary filter assembly 9 further improves filtration accuracy. Its main structure includes a filter housing, a filter element, and mounting fasteners. The filter housing is made of corrosion-resistant material, and the surface of the internal mounting cavity is smoothed to prevent oil adhesion or retention during flow. The top inlet port is connected to the outlet port of pump 6 via a flange, and the bottom outlet port extends to the outside of the system via a sealed pipe.

[0051] The filter element has a multi-layered composite structure, including a pre-filter layer, a high-efficiency filter layer, and a support layer. The pre-filter layer removes larger particles, the high-efficiency filter layer removes micron-sized particles, and the support layer provides structural support to prevent deformation of the filter element under high pressure. The filter element is fixed to the mounting cavity inside the filter housing by threads, and a sealing gasket is provided at the mounting position to prevent oil leakage. The filter element can be designed with materials of different filtration precisions according to the specific characteristics of the oil, thus flexibly meeting the needs of different industrial applications.

[0052] The entire system is managed by a controller 10 installed on the machine base 1. The controller 10 is connected to various components via cables, including a level sensor, a hydraulic sensor, and the drive motor of pump 6. The level sensor is fixed to the inner wall of the reservoir 2 and monitors the oil level in real time through its output signal. When the level is too low, the controller 10 will trigger an alarm or stop pump 6 to prevent dry running. Hydraulic sensors are installed in the inlet pipe of the primary filter assembly 7, the connecting pipe between the primary filter assembly 7 and the bag filter assembly 8, and the connecting pipe between the bag filter assembly 8 and the secondary filter assembly 9, respectively, to monitor pressure changes in each pipe. When the pressure exceeds a preset threshold, the controller 10 issues a maintenance warning signal to guide the operator to perform maintenance or replacement.

[0053] The system's workflow is as follows: The oil to be filtered enters the primary filter assembly 7 through the inlet pipe. Under centrifugal force, large particles of impurities are separated, and the purified oil enters the bag filter assembly 8 through the outlet. The oil entering the bag filter assembly 8 is then forced through the filter bags by air pressure, further removing fine particles, and then enters the storage chamber 2 through a flexible tube. The oil in the storage chamber 2 is pressurized by pump 6 and then transported to the secondary filter assembly 9, where it is further purified by a high-efficiency filter element. Finally, it is discharged from the system through the outlet for use by external equipment. During this process, the exhaust valve 3 automatically adjusts according to changes in the air pressure in the storage chamber 2 to ensure stable system operation.

[0054] This system combines multi-stage filtration and intelligent management technologies, significantly improving filtration efficiency and meeting the filtration needs of high-viscosity oils in industrial environments. The modular design of each component allows for easy disassembly and maintenance; for example, the filter cartridges and filter bags are removable, extending the system's lifespan and reducing operating costs. Its compact structure and flexible connection methods make it suitable for various industrial scenarios and possess broad application potential. Furthermore, the introduction of intelligent control functions makes the system easier to operate and more efficient to maintain.

[0055] It should be noted that some technical details, such as the specific structure of the gear pump, the working principle of the sensor, and the circuit design of the controller, are conventional technologies in the industry and are not described in detail in this invention. However, readers can refer to relevant technical materials for more information.

[0056] While exemplary embodiments of this disclosure have been described, those skilled in the art will understand that various changes and modifications can be made to the exemplary embodiments of this disclosure without departing from the spirit and scope thereof. Therefore, all changes and modifications are included within the scope of protection of this disclosure as defined by the claims. This disclosure is defined by the appended claims, and equivalents of those claims are also included.

Claims

1. A central water outlet vortex single cloth bag filter system, characterized in that, The utility model relates to a kind of oil filter, including: Hollow machine table, the hollow part of machine table forms sealed storage chamber, for storing filtered oil liquid;Machine table is equipped with mounting platform, and mounting platform is fixedly provided with pump, primary filter assembly, cloth bag filter assembly and secondary filter assembly; The liquid inlet of pump is connected with storage chamber by pipeline, and the liquid inlet end of pipeline is equipped with detachable filter element, for carrying out primary filtration to the oil liquid entering pump body;The liquid outlet of pump is connected with the liquid inlet interface of secondary filter assembly by pipeline;Primary filter assembly is vortex impurity remover, and its liquid inlet interface is connected with liquid inlet pipe by flange connection, and liquid outlet interface is connected with the liquid inlet interface of cloth bag filter assembly by flange connection;Cloth bag filter assembly includes tank body, metal filter screen bucket and filter cloth bag, and the top of tank body is equipped with gas source interface, and gas source interface is connected with external gas source by air pipe, and the bottom of tank body is equipped with liquid inlet interface, and liquid inlet interface is connected with the liquid outlet interface of primary filter assembly by flange connection, and the top of tank body is equipped with liquid outlet interface, and liquid outlet interface is inserted into storage chamber by pipeline;Secondary filter assembly includes filter shell, detachable filter element and liquid outlet interface, and the top of filter shell is equipped with liquid inlet interface, and liquid inlet interface is connected with the liquid outlet of pump by flange connection, and liquid outlet interface is located at the bottom of filter shell, and extends to outside system by pipeline;The top of storage chamber is equipped with one exhaust valve, and exhaust valve is only used for discharging gas, and the sidewall of storage chamber is equipped with one transparent observation window, and observation window is connected with the sidewall of storage chamber by sealing rubber strip;Hydraulic sensor is installed in the liquid inlet pipeline of primary filter assembly, the connecting pipeline of primary filter assembly and cloth bag filter assembly and the pipeline connected with secondary filter assembly of cloth bag filter assembly respectively, for monitoring the pressure change of each pipeline in real time; Controller includes microprocessor, storage module and input-output interface, microprocessor is connected with storage module by data bus, and input-output interface is connected with liquid level sensor, hydraulic sensor and the motor of pump by signal line, and liquid level sensor is fixed to the inner wall of storage chamber, and its signal output end is connected with the input interface of controller by signal line.

2. The central water outlet vortex single cloth bag filter system according to claim 1, characterized in that: The inside of vortex impurity remover of primary filter assembly is equipped with spiral flow channel, for separating solid impurities in oil liquid by centrifugal force.

3. The center draw, vortex, single cloth bag filtration system of claim 1, wherein: The filter cloth bag of cloth bag filter assembly is multilayer composite filter cloth.

4. The center draw, vortex, single cloth bag filtration system of claim 1, wherein: The filter element of secondary filter assembly is multilayer composite structure, including primary efficiency filter layer, high efficiency filter layer and support layer.

5. The center draw, vortex, single cloth bag filtration system of claim 1, wherein: Pump is gear pump, and its structure includes pump body, driving gear, driven gear, half disc, liquid inlet, liquid outlet and sealing assembly.

6. The center draw, vortex, single cloth bag filtration system of claim 1, wherein: The signal output end of hydraulic sensor is connected with the input interface of controller by signal line, for monitoring the pressure change of each pipeline in real time.

7. The center draw, vortex, single cloth bag filtration system of claim 1, wherein: Filter assembly adopts detachable design, which is convenient for replacement and cleaning.

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