Portable low-noise purification device for hydraulic system of ship

Abstract

The invention discloses a portable low-noise hydraulic system purification device for a ship, and belongs to the technical field of hydraulic oil purification. The portable low-noise purification device for the hydraulic system of the ship comprises a power module used for being connected into the hydraulic system to conduct oil independent circulation; the filtering module is communicated with the power module through an oil way and is used for carrying out multi-stage filtering on the oil liquid which is independently circulated; the display control module is electrically connected with the power module and used for monitoring the operation state of the power module; the device is suitable for purifying hydraulic oil after pollution is caused under the normal use condition, the hydraulic oil with the cleanliness reaching NAS 12 level and the water content reaching 0.05% can be purified, and according to the working condition and environment limitation and the current development situation of modern intelligent science and technology, the whole device embodies the principles of portability, low noise, intelligence and adaptability, and the device is suitable for popularization and application. The requirement for efficient purification of hydraulic oil under limited conditions can be effectively met, and conditions are provided for maintaining good operation of a hydraulic system of a ship.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic oil purification, in particular to a portable low-noise hydraulic system purification device for ships. Background Art

[0002] The hydraulic system, the "artery" of a ship, is its most critical support system. Hydraulic oil, the "blood" flowing through this artery, has a direct impact on the long-term safe and reliable operation of the hydraulic system, directly affecting the ship's navigation safety, operational deployment, and mission execution capabilities. Ships have numerous hydraulic machines that operate frequently and operate in harsh environments. Some hydraulic machines and pipelines are also subject to extremely high seawater pressure. These factors often lead to severe contamination of the hydraulic oil, even causing problems such as emulsification and deterioration, and excessive contamination levels. In severe cases, this can lead to severe wear and even failure of the machinery.

[0003] Due to the narrow space on ships, it is difficult to carry a large amount of spare hydraulic oil for replacement at any time, which brings great safety hazards to the normal use of the hydraulic system. Therefore, it is urgent to develop a hydraulic system purification device suitable for ship use to deeply purify the hydraulic oil flowing therein so that the hydraulic system can maintain a good operating condition. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the purification of ship hydraulic systems in the prior art is limited and difficult to purify, and to propose a portable low-noise hydraulic system purification device for ships.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: The portable low-noise hydraulic system purification device for ships includes: a power module for connecting to the hydraulic system for independent oil circulation; a filter module for forming an oil circuit connection with the power module and performing multi-stage filtration on the independently circulated oil; and a display and control module for electrically connecting to the power module and monitoring the operating status of the power module.

[0006] In order to ensure the power stability of the independent circulation, preferably, the power module includes: a hydraulic pump group, the oil inlet end of the hydraulic pump group is connected to the hydraulic system, wherein the oil outlet end of the hydraulic pump group is connected to the filter module through a third pipeline, and the third pipeline is provided with a monitoring module through a parallel oil circuit; a coarse filter arranged at the oil inlet end of the hydraulic pump group is connected to the hydraulic system and the hydraulic pump group through a first pipeline and a second pipeline respectively.

[0007] Furthermore, the monitoring module includes an online particle counter, a trace moisture sensor and an oil property sensor connected to the third pipeline.

[0008] In order to ensure the reliability of filtration, the filter module further includes: at least four groups of filters, and the filters are arranged in parallel; the filters are installed on the filter integrated block, and the filter integrated block is equipped with an oil outlet check valve block and an oil inlet valve block. The oil enters the filter module through the second oil inlet quick plug connector, and the second oil inlet quick plug connector is installed on the oil inlet valve block, connected to the regulating valve group through a steel pipe, enters the filter integrated block, and enters the filter inlet through the internal pipeline. The filtered oil enters the filter integrated block through the filter outlet, is collected through the internal pipeline, and the internal pipeline enters the oil outlet check valve block, and the oil is discharged through the second oil outlet quick plug connector and returned to the oil tank; an overflow valve group is installed between the oil inlet valve block and the oil outlet check valve block through the pipeline, and the oil enters through the second oil inlet quick plug connector and is discharged from the second oil outlet quick plug connector through the overflow valve group.

[0009] Preferably, the display and control module includes: an industrial computer for setting and receiving transmission purification parameters in real time; an operation screen for displaying real-time transmission parameters; and operation buttons for instructing and controlling the purification device.

[0010] Preferably, three groups of boxes are further included, and the display and control module, the filter module and the power module are respectively installed in the three groups of boxes, wherein the box on the top where the display and control module is installed is electrically connected to the middle box where the filter module is installed, and the middle box and the box at the bottom where the power module is installed are connected and electrically connected through an oil circuit. When the three groups of boxes are stacked, they are respectively connected by a first connecting member and a second connecting member.

[0011] Furthermore, the first connecting member includes a positioning rod fixedly connected to the top of one of the boxes, and a positioning cylinder fixedly connected to the bottom of one of the boxes. When the two groups of boxes are stacked, the positioning cylinder is sleeved on the positioning rod.

[0012] Furthermore, the second connecting member includes a lifting eye column fixed on the top of one of the boxes, and a mounting tube installed on the bottom of one of the boxes. When the two groups of boxes are stacked, the lifting eye column extends into the mounting tube.

[0013] Furthermore, a door is detachably connected to the box body, handles are provided on both side walls of the door, and universal wheels that can be locked are rotatably connected to the bottom of the box body.

[0014] Preferably, the weight of any module is less than or equal to 30 kg ± 3%.

[0015] Compared with the prior art, the present invention provides a portable low-noise hydraulic system purification device for ships, which has the following beneficial effects: 1. This portable low-noise hydraulic system purification device for ships, when used as needed or regularly, can control and eliminate impurities such as moisture and other particulate matter in the hydraulic system, improve the efficiency of hydraulic oil use, keep the ship's hydraulic system in good operating condition, ensure the long-term normal operation of hydraulic machinery, improve the working stability of equipment, significantly extend the service life of hydraulic machinery, and ensure that the ship can carry out various operational tasks. At the same time, the device is also suitable for industrial oils such as gear oil, engine oil, fuel oil, kerosene, etc. with a kinematic viscosity of ≤300 centistokes (cSt).

[0016] 2. The ship's portable low-noise hydraulic system purification device can significantly extend the hydraulic oil replacement cycle, reduce consumption, save equipment support funds and fuel costs, while also reducing the crew's workload, reducing the amount of hydraulic oil carried at sea, and saving space on board.

[0017] 3. The size and weight of the ship's portable low-noise hydraulic system purification device can meet the needs of convenient entry and exit in narrow spaces, such as small ship hatches, difficult access, narrow passages, inconvenient movement, small spaces, and crowded placement. At the same time, it uses the principle of a mobile detachable trolley. The modules are divided into three groups of boxes that can be separated or stacked into a whole for transportation. It is convenient for personnel to carry and transport, and can be arranged and used separately according to the space conditions of the ship's cabin. Each module box abandons the traditional right-angled cube and adopts a chamfered design on the four sides to minimize the length of the plane diagonal, further improving the smooth passage through narrow spaces.

[0018] 4. The ship's portable low-noise hydraulic system purification device uses lightweight and sturdy aluminum alloy as the material for each module box. The structure adopts a column frame reinforcement structure and adopts a "riveting + welding" assembly method to ensure the overall structural strength and resistance to drop and pressure, effectively protecting the equipment from external damage. The surface has a high finish and is wear-resistant, corrosion-resistant and high-strength. The parts are standardized and universal products.

[0019] 5. The ship's portable low-noise hydraulic system purification device uses a physical suspension vibration isolation method to reduce noise. The hydraulic pump group is connected to the box body, which minimizes the contact area between the resonant noise-generating components and the box body. It is always in an up and down, left and right suspension state to reduce noise generation. It also has the connection rigidity required for stable operation of the equipment, so that its operating noise is ≤70 decibels.

[0020] 6. The ship's portable low-noise hydraulic system purification device adopts an industrial computer intelligent control design in terms of intelligent control. It can set cleanliness level targets, water content targets, working hours, oil temperature and other thresholds. When the relevant parameters reach the target values, the hydraulic pump group is controlled to automatically shut down; real-time reception and transmission display parameters: real-time reception of technical parameters such as pollution level, water content, kinematic viscosity, acidity and alkalinity index, oil temperature, pressure and vacuum degree collected by the detector, and transmit them to the touch screen for real-time display according to the display interface set by the program.

[0021] 7. The ship's portable low-noise hydraulic system purification device collects data parameters from the detector in real time during operation, and displays the corresponding status parameter box area on the touch screen in red, yellow and green. Red and yellow are used to remind operators to pay attention and take measures in time.

[0022] The parts not involved in this device are the same as the existing technology or can be implemented by using existing technology. The present invention is suitable for purifying hydraulic oil after it is contaminated under normal use conditions. It can purify hydraulic oil with a cleanliness level of NAS 12 and a water content of 0.05%. According to working conditions and environmental restrictions, as well as the current development status of modern intelligent technology, the overall device embodies the principles of portability, low noise, intelligence and adaptability, and can effectively meet the requirements for efficient purification of hydraulic oil under restricted conditions, providing conditions for the ship's hydraulic system to maintain good operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the portable low-noise hydraulic system purification device for ships proposed by the present invention; Figure 2 Schematic diagram of the display and control module structure of the portable low-noise hydraulic system purification device for ships proposed by the present invention Figure 1 ; Figure 3 Schematic diagram of the display and control module structure of the portable low-noise hydraulic system purification device for ships proposed by the present invention Figure 2 ; Figure 4 Schematic diagram of the display and control module structure of the portable low-noise hydraulic system purification device for ships proposed by the present invention Figure 3 ; Figure 5 Schematic diagram of the filter module structure of the portable low-noise hydraulic system purification device for ships proposed by the present invention Figure 1 ; Figure 6 Schematic diagram of the filter module structure of the portable low-noise hydraulic system purification device for ships proposed by the present invention Figure 2 ; Figure 7Schematic diagram of the power module structure of the portable low-noise hydraulic system purification device for ships proposed by the present invention Figure 1 ; Figure 8 Schematic diagram of the power module structure of the portable low-noise hydraulic system purification device for ships proposed by the present invention Figure 2 ; Figure 9 Schematic diagram of the power module structure of the portable low-noise hydraulic system purification device for ships proposed by the present invention Figure 3 ; Figure 10 This is a system diagram of the portable low-noise hydraulic system purification device for ships proposed by the present invention.

[0024] In the figure: 1. Display and control module; 101. First control cable connector; 102. Power supply cable connector; 103. Circuit breaker; 104. Operation button; 105. Operation screen; 106. Mounting bracket; 107. Industrial computer; 108. Power switch; 2. Filter module; 201. Filter; 202. Second oil outlet quick connector; 203. Second oil inlet quick connector; 204. Oil inlet valve block; 205. Regulating valve group; 206. Filter integrated block; 207. Overflow valve group; 208. Oil outlet check valve block; 3. Power module; 301. Second control cable connector; 302, detection oil circuit return oil quick plug connector; 303, first oil inlet quick plug connector; 304, first oil outlet quick plug connector; 305, flow control valve; 306, online particle counter; 307, trace moisture sensor; 308, oil property sensor; 4, coarse filter; 401, first pipeline; 402, second pipeline; 5, hydraulic pump group; 501, third pipeline; 6, positioning rod; 601, positioning cylinder; 602, universal wheel; 603, lifting eye column; 7, box body; 701, box door; 702, handle. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0027] Example: Reference Figures 1-10The portable low-noise hydraulic system purification device for ships includes: a power module 3, which is used to connect to the hydraulic system for independent circulation of oil; a filter module 2, which forms an oil circuit connection with the power module 3 and performs multi-stage filtration on the independently circulated oil; a display and control module 1, which is electrically connected to the power module 3 and is used to monitor the operating status of the power module 3. The weight of any functional module is not more than 30kg±3%, the total weight is not more than 100kg, and the external dimensions of a single functional module are not more than 450*450*450mm.

[0028] Through the above design, the overall device is suitable for purifying hydraulic oil after it is contaminated under normal use conditions. It can purify hydraulic oil with a cleanliness level of NAS12 and a water content of 0.05%. According to working conditions and environmental restrictions, as well as the current development status of modern intelligent technology, the overall device embodies the principles of portability, low noise, intelligence and adaptability, and can effectively meet the requirements for efficient purification of hydraulic oil under restricted conditions, providing conditions for the ship's hydraulic system to maintain good operation. The water content of the hydraulic oil after purification is no more than 0.01%, and the contamination level of the hydraulic oil after purification is no less than NAS8 (NAS 1638-2011 level).

[0029] Reference Figure 1 and Figures 8-10 The power module 3 includes: a hydraulic pump group 5 that provides driving force for the hydraulic oil that needs to be circulated and purified, and the oil inlet end of the hydraulic pump group 5 is connected to the hydraulic system, wherein the oil outlet end of the hydraulic pump group 5 is connected to the filter module 2 through the first oil outlet quick-plug connector 304 at the end of the third pipeline 501, and the third pipeline 501 is provided with a monitoring module through a parallel oil circuit for real-time monitoring of various parameters of the hydraulic oil after clean coarse filtration; the coarse filter 4 arranged at the oil inlet end of the hydraulic pump group 5 is respectively connected to the hydraulic system and the hydraulic pump group 5 through a first pipeline 401 and a second pipeline 402. Specifically, the oil inlet end of the hydraulic pump group 5 is connected to the second pipeline 402, and the first pipeline 401 is connected to the hydraulic system of the ship through the first oil inlet quick-plug connector 303.

[0030] Here, the main technical parameters of the hydraulic pump group 5 are: Power supply voltage: AC380V, 50Hz; Output power: 1 / 2HP 0.37KW; Speed: 2000RPM; Dimensions: 375×125×135mm; Protection grade: IP54; Pump interface: DN20.

[0031] The coarse filter 4 adopts a mesh filtration technology, which is used to pre-treat the hydraulic oil entering the purification device. It can not only remove larger particle pollutants (≥40μm) in the hydraulic oil, but also prevent larger particles from clogging the hydraulic pump group 5 and damaging the high-precision filter element, thereby improving the purification efficiency.

[0032] The main technical parameters of the coarse filter (4) are: Material: aluminum alloy; Processing technology: precision casting; Flow rate: 110L / min; Filtration accuracy: 40μm; Working pressure: ≤1Mpa; Size: diameter 100mm, height 240mm; Interface: DN20.

[0033] The monitoring module is connected to the third pipeline 501 through the detection oil return quick plug connector 302. The pipeline is provided with a flow regulating valve 305 to control the detection flow, and is provided with an online particle counter 306, a trace moisture sensor 307 and an oil property sensor 308.

[0034] Here, the main technical parameters of the online particle counter 306 are: Detection viscosity: ≤350cSt; Detection pressure: 0.1-6MPa; Particle size range: 1-500μm; Allowable flow rate: 10-500mL / min; Particle counting relative error: ±20% Particle counting repeatability: ≤5%; Power supply: DC24V±10%; Output: RS485 communication Display result unit: NAS level; Mechanical thread interface: M10*1.

[0035] Trace moisture sensor 307: Based on the characteristic that the dielectric constant of oil changes with its water content, it analyzes the water content in the oil and provides data to the industrial computer 107.

[0036] The main technical parameters of trace moisture sensor 307 are: Moisture content: 0~500ppm; Measurement accuracy: ±10%; Output: RS485 digital output; Allowable working pressure: <20bar; Working temperature: -40~85℃; Power supply voltage: DC9-28V; Mechanical thread interface: G1 / 2.

[0037] Oil property sensor 308: detects the viscosity and temperature parameters of the hydraulic oil and provides data to the industrial computer 107.

[0038] The main technical parameters of the oil characteristic sensor 308 are: Measurement items: temperature, viscosity; Measuring range: Temperature: 0~85℃, accuracy ±0.5℃; Viscosity: 1~400cP (500cSt), accuracy ±0.05; Power supply voltage: DC9-32V; Probe pressure resistance: Max 10bar; Maximum flow rate: <0.1 m / s; Output: RS485 communication; Mechanical thread interface: G3 / 4.

[0039] In addition, a digital remote pressure gauge (for detecting vacuum) is provided on the coarse filter 4 to measure the vacuum degree during purification operation and provide data to the industrial computer 107 .

[0040] The main technical parameters of the digital remote pressure gauge (vacuum detection) are: Accuracy grade: 0.5%FS; Measuring range: -0.1-0MPa; Case material: 304SS; Mechanical thread interface: G1 / 4; Power supply voltage: DC12-28V; Output: RS485 communication.

[0041] Reference Figure 1 and Figure 5-Figure 7 The filter module 2 includes: at least four groups of filters 201, and the filters 201 are arranged in parallel; the filters 201 are installed on the filter integrated block 206, and the oil outlet one-way valve block 208 and the oil inlet valve block 204 are installed on the filter integrated block 206.

[0042] The oil enters the filter module 2 through the second oil inlet quick-plug connector 203, which is installed on the oil inlet valve block 204, connected to the regulating valve group 205 through a steel pipe, enters the filter integrated block 206, and is diverted through the internal pipeline to enter the inlet of the filter 201. The filtered oil enters the filter integrated block 206 through the outlet of the filter 201, is collected through the internal pipeline, and enters the oil outlet check valve block 208 through the internal pipeline, and is discharged through the second oil outlet quick-plug connector 202 and returned to the oil tank.

[0043] An overflow valve group 207 is installed between the oil inlet valve block 204 and the oil outlet one-way valve block 208 through a pipeline. Oil can be directly taken in through the second oil inlet quick-plug connector 203, and oil can be discharged from the second oil outlet quick-plug connector 202 through the overflow valve group 207. There is a one-way valve inside the oil outlet one-way valve block 208, and the overflow oil cannot be backwashed back to the filter 201.

[0044] Here, the main technical parameters for filter 201 and filter element selection are: Material: aluminum alloy; Structural parts: upper cover, sealing ring, outer shell, T-type stud; Processing technology: aluminum alloy one-time die-casting; Working pressure: ≤1Mpa; Dimensions: diameter 222.1±0.5mm, height 188mm, wall thickness 20mm; Interface: M24 threaded interface; The main technical parameters of the filter element for particulate matter filtration are: Minimum capture particle: 0.1μm; Filtration accuracy: ISO 14 / 11, NAS 6-7; Dirt holding capacity: 400g (single); Material: The ratio of polymer composite fiber in a single filter element is 80%-90%, and the ratio of polymer hydrophilic fiber is 10%-20% (i.e. the length ratio from the outer edge of the inner paper tube to the inner edge of the outer paper tube); Size: diameter 200mm, height 114mm; Weight: 1000±20g / piece; The main technical parameters of the filter element for moisture filtration are: Water content: 120g (single); Material: The proportion of polymer hydrophilic fiber in a single filter element is 80%-90%, and the proportion of polymer composite fiber is 10%-20% (i.e. the length ratio from the outer wall of the inner guide tube to the inner wall of the outer wall tube); Size: diameter 200mm, height 114mm; The inner guide tube diameter is 17mm; Weight: 1000±20g / piece.

[0045] A digital remote pressure gauge (for detecting pressure) is also provided on the third pipeline (501): it measures the purification working pressure and provides data to the industrial control computer 107.

[0046] The main technical parameters of the digital remote pressure gauge (test pressure) are: Accuracy grade: 1%FS; Measuring range: 0-10MPa; Case material: 304SS; Mechanical thread interface: M10*1; Power supply voltage: DC12~28V; Output: RS485 communication.

[0047] In addition, a return pipe is provided on the third pipe 501, which is directly connected to the ship's hydraulic system, and an overflow valve group 207 is provided on the pipe to provide overload protection for the entire oil circuit system when the filter part is blocked.

[0048] Reference Figures 1-4 The display and control module 1 includes: an industrial computer 107, which is connected to an AC 380V voltage through a power supply cable connector 102 and is used to set and receive transmission purification parameters in real time; an operation screen 105, which is used to display real-time transmission parameters; an operation button 104 including a white-green indicator light and a start / stop button, which is used to indicate and control the purification device, and a circuit breaker 103 for protection, and a first control cable connector 101 is also provided on the display and control module 1, which is electrically connected to the second control cable connector 301 on the power module 3.

[0049] In addition, the mounting frame 106 in the display and control module 1 is also equipped with an intermediate relay, a terminal block, the mounting frame 106 , a power switch 108 , a control transformer, a fuse, a contactor, a thermal overload protector and a terminal block.

[0050] The entire purification device includes three groups of boxes 7. The four corners of the boxes 7 are chamfered, such as 45° or 30°, to ensure that the circular window can be passed during actual use. The display and control module 1, the filter module 2 and the power module 3 are respectively installed in the three groups of boxes 7. Among them, the box 7 at the top where the display and control module 1 is installed is electrically connected to the middle box 7 where the filter module 2 is installed. The middle box 7 is connected to the box 7 at the bottom where the power module 3 is installed through an oil circuit. When the three groups of boxes 7 are stacked, they are respectively connected by a first connecting member and a second connecting member.

[0051] The first connecting member includes a positioning rod 6 fixedly connected to the top of one of the boxes 7, and a positioning cylinder 601 fixedly connected to the bottom of one of the boxes 7. When the two groups of boxes 7 are stacked, the positioning cylinder 601 is mounted on the positioning rod 6 and is mainly used to connect the display and control module 1 and the filter module 2 to ensure that there is enough space at the connection between the two for installing the filter 201.

[0052] The second connecting part includes a lifting eye column 603 fixed on the top of one of the boxes 7, which can also be an angle steel structure, and a mounting tube installed at the bottom of one of the boxes 7. The positioning groove can be opened to cooperate with the angle steel. When the two groups of boxes 7 are stacked, the lifting eye column 603 extends into the mounting tube, which is mainly used to connect the filter module 2 and the power module 3, so that the two are tightly combined to reduce vibration noise.

[0053] A door 701 is detachably connected to the box body 7, and handles 702 are provided on both side walls of the door 701 to facilitate independent movement of each module. The bottom of the box body 7 is rotatably connected to a lockable universal wheel 602 to facilitate movement and positioning of the entire device within the ship.

[0054] In the present invention, by using the device as needed or regularly, impurities such as moisture and other particulate matter in the hydraulic system can be controlled and eliminated, thereby improving the efficiency of hydraulic oil use, keeping the ship's hydraulic system in good operating condition, ensuring that the hydraulic machinery maintains normal operation for a long time, improving the working stability of the equipment, greatly extending the service life of the hydraulic machinery, and ensuring that the ship can carry out various operational tasks.

[0055] In addition, it can significantly extend the hydraulic oil replacement cycle, reduce consumption, save equipment support funds and fuel costs, while also reducing the crew's workload, reducing the amount of hydraulic oil carried at sea, and saving space on board.

[0056] The entire hydraulic system purification device is suitable for purifying hydraulic oil after it is contaminated under normal use conditions. It can purify hydraulic oil with a cleanliness level of NAS 12 and a water content of 0.05%. For abnormal situations of extremely large particles and large amounts of water inflow, it should be pre-treated before purification; excessive accumulation of particles larger than 40μm will clog the coarse filter 4 and trigger a pressure alarm, so the coarse filter 4 should be cleaned in time; for hydraulic oil with a large amount of water inflow and not yet emulsified, the oil and water are first separated by sedimentation, and the water is released before purification to avoid wasting a large number of filter elements. For emulsified and deteriorated hydraulic oil, only large-scale vacuum oil filtration and dehydration equipment can be used for water removal.

[0057] The size and weight of the device can meet the needs of convenient entry and exit in narrow spaces, such as small ship hatches, difficult access, narrow passages, inconvenient movement, small spaces, and crowded placement. At the same time, the use of the mobile trolley principle makes it convenient for people to carry and transport; each module box 7 is made of lightweight and sturdy aluminum alloy, which is resistant to falling and pressure, effectively protecting the equipment from external damage, with a high surface finish, wear resistance, corrosion resistance and high strength, and components are standardized and universal products.

[0058] Here, the main configuration is power cables and control cables. The power cable is used to power the equipment, and the control cable is used to transmit data and signals between devices. The devices need to be reasonably arranged and connected, and need to be safe and reliable, avoid interference, and be clearly marked. Circular electrical connectors are configured at both ends of the cable for quick and easy plug-in and unplugging.

[0059] The main technical parameters of the power cord are: Power supply cable: 4-core 1.5-square pure copper core cable, outer diameter 12mm, length 10 meters.

[0060] The main technical parameters of the control line are: Complies with ISO 11898-2 standard, halogen-free flame retardant, easy to peel, soft and excellent shielding performance, with excellent high-frequency transmission performance, length 3 meters, cable outer diameter 10mm.

[0061] Connectors: The display and control module and the power module use a 4-core circular electrical connector for electrical connection, including a plug, socket and pin; Material: aluminum alloy; Dimensions: outer diameter φ39.9mm; length 76mm, threaded interface M20×1.5.

[0062] The main technical parameters of the valve are: Stop valve material: brass 59-1, interface DN2, 2 pieces; Regulating valve material: brass 59-1, working pressure ≥1Mpa, interface DN8, DN20; Material of collecting valve: titanium aluminum alloy, flow rate: 12L / min, pressure resistance: 2.5Mpa, interface DN8.

[0063] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A portable low-noise hydraulic system purification device for ships, characterized in that: include: A power module (3) is used to connect to the hydraulic system for independent oil circulation; The filter module (2) is connected to the power module (3) through an oil circuit to perform multi-stage filtration on the independently circulated oil; The display and control module (1) is electrically connected to the power module (3) and is used to monitor the operating status of the power module (3).

2. The portable low-noise hydraulic system purification device for ships according to claim 1, characterized in that: The power module (3) comprises: A hydraulic pump group (5), wherein the oil inlet end of the hydraulic pump group (5) is connected to the hydraulic system, The oil outlet of the hydraulic pump group (5) is connected to the filter module (2) via a third pipeline (501), and the third pipeline (501) is provided with a monitoring module via a parallel oil circuit; The coarse filter (4) provided at the oil inlet end of the hydraulic pump group (5) is connected to the hydraulic system and the hydraulic pump group (5) through the first pipeline (401) and the second pipeline (402), respectively.

3. The portable low-noise hydraulic system purification device for ships according to claim 2, characterized in that: The monitoring module includes an online particle counter (306), a trace moisture sensor (307), and an oil property sensor (308) connected to the third pipeline (501).

4. The portable low-noise hydraulic system purification device for ships according to claim 2, characterized in that: The filtering module (2) comprises: At least four groups of filters (201), and the filters (201) are arranged in parallel; The filter (201) is mounted on the filter integrated block (206), and an oil outlet check valve block (208) and an oil inlet valve block (204) are mounted on the filter integrated block (206). The oil enters the filter module (2) through the second oil inlet quick plug connector (203), and the second oil inlet quick plug connector (203) is mounted on the oil inlet valve block (204). The oil enters the filter integrated block (206) through a steel pipe connected to the regulating valve group (205). The oil enters the filter integrated block (206), enters the filter (201) inlet through the internal pipeline, and the filtered oil enters the filter integrated block (206) through the filter (201) outlet. The oil is collected through the internal pipeline, enters the oil outlet check valve block (208), and is discharged through the second oil outlet quick plug connector (202) and returned to the oil tank. A relief valve group (207) is installed between the oil inlet valve block (204) and the oil outlet one-way valve block (208) via a pipeline. Oil is introduced through the second oil inlet quick connector (203) and oil is discharged from the second oil outlet quick connector (202) through the relief valve group (207).

5. The portable low-noise hydraulic system purification device for ships according to claim 1, characterized in that: The display and control module (1) comprises: An industrial computer (107) is used to set and receive transmission purification parameters in real time; An operating screen (105) for displaying real-time transmission parameters; The operating button (104) is used to indicate and control the purification device.

6. The portable low-noise hydraulic system purification device for ships according to claim 1, characterized in that: It also includes three sets of boxes (7), wherein the display and control module (1), the filter module (2) and the power module (3) are respectively installed in the three sets of boxes (7). The box (7) on the top of which the display and control module (1) is installed is electrically connected to the middle box (7) on which the filter module (2) is installed. The middle box (7) is connected to the box (7) on the bottom of which the power module (3) is installed via an oil circuit and is electrically connected. When the three sets of boxes (7) are stacked, they are connected respectively via the first connecting member and the second connecting member.

7. The portable low-noise hydraulic system purification device for ships according to claim 6, characterized in that: The first connecting member comprises a positioning rod (6) fixedly connected to the top of one of the boxes (7), and a positioning cylinder (601) fixedly connected to the bottom of one of the boxes (7). When the two sets of boxes (7) are stacked, the positioning cylinder (601) is sleeved on the positioning rod (6).

8. The portable low-noise hydraulic system purification device for ships according to claim 6, characterized in that: The second connecting member comprises a lifting eye column (603) fixed to the top of one of the boxes (7), and a mounting tube installed at the bottom of one of the boxes (7); when the two sets of boxes (7) are stacked, the lifting eye column (603) extends into the mounting tube.

9. The portable low-noise hydraulic system purification device for ships according to claim 6, characterized in that: The box body (7) is detachably connected to a box door (701), and handles (702) are provided on both side walls of the box door (701). The bottom of the box body (7) is rotatably connected to a universal wheel (602) that can be locked.

10. The portable low-noise hydraulic system purification device for ships according to claim 1, characterized in that: The weight of any module is less than or equal to 30kg±3%.

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