Water circulation filtering system suitable for cooling water of wax plate machine

Abstract

The utility model belongs to the technical field of cooling water circulation systems, and particularly relates to a water circulation filtering system suitable for cooling water of a wax plate machine, which is used for filtering impurities in the cooling water of the wax plate machine and recycling the cooling water, and comprises a filter main body, a first three-way valve is arranged at the top of the filter main body, and a second three-way valve is arranged at the bottom of the filter main body. A second three-way valve is arranged at the bottom of the filter main body, a water distribution layer, a filtering layer and a water collection layer are arranged in the filter main body from top to bottom, and the filter main body is communicated with a filtering system and a cleaning system; the filtering system is used for filtering and recycling the wax plate machine cooling water entering the filter main body; the cleaning system is used for removing impurities filtered by the filtering system out of the filter main body. When the cleaning system is used for flushing, the system continuously supplies water, the flushing water consumption is low, the occupied area is small, special foundation treatment is not needed, full-automatic control is achieved, maintenance is easy, turbidity can be effectively reduced, the flow of circulating cooling water is large, and the filtering speed is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling water circulation systems, and particularly relates to a water circulation filtration system suitable for cooling water of a wax plate machine. Background Art

[0002] At present, during the transmission process of domestic existing chain-disk type continuous paraffin wax forming machines, the cooling water body, wax residues, water scale, silt deposition, etc. in the conveying pipeline are not cleaned in time, which is extremely easy to cause chucking, not only affecting continuous operation, but also damaging the equipment, and often resulting in serious consequences such as main chain jamming, accumulation and breakage. The usual practice of current cleaning is to unload the wax plates hanging on the main chain after shutdown, and then shovel and brush the conveying track walls and bottoms. These problems directly lead to a reduction in production efficiency caused by equipment shutdown, resulting in increased energy consumption, blockage of the conveying and transportation channels, and shortening of the equipment service life. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the utility model provides a water circulation filtration system suitable for cooling water of a wax plate machine. Through a unique water distribution system and a very evenly distributed water collector, the whole filtration process is always stable, solving the problems of inconvenient cleaning of pipeline blockage and excessive paraffin wax scraps in the cooling water inside the existing wax plate machine.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A water circulation filtration system suitable for cooling water of a wax plate machine, used to filter impurities in the cooling water of the wax plate machine and recycle the cooling water, including a filter body. A first three-way valve is arranged at the top of the filter body, and a second three-way valve is arranged at the bottom of the filter body. A water distribution layer, a filtration layer and a water collection layer are arranged in the filter body from top to bottom. The filter body is connected to a filtration system and a cleaning system; the filtration system is used to filter and recycle the cooling water of the wax plate machine entering the inside of the filter body; the cleaning system is used to remove the impurities filtered by the filtration system from the filter body.

[0005] Preferably, the filtration system includes a first water inlet pipe connected to the first three-way valve at the top of the filter body, and a first drain pipe connected to the second three-way valve at the bottom of the filter body.

[0006] Preferably, when the cooling water of the wax plate machine enters the inside of the filter body through the first water inlet pipe, after passing through the water distribution layer, the filtration layer and the water collection layer in sequence, the impurities in the cooling water of the wax plate machine remain inside the filter body, and the filtered water enters the wax plate machine through the first drain pipe for recycling.

[0007] Preferably, the cleaning system includes a second water inlet pipe connected to the second three-way valve at the bottom of the filter body, and a second drain pipe connected to the first three-way valve at the top of the filter body.

[0008] Preferably, when impurities continuously accumulate inside the filter body and the head loss reaches a preset value, clear water enters the inside of the filter body through the second water inlet pipe, and successively passes through the water collection layer, the filter layer, and the water distribution layer to clean it, and the sewage with impurities is discharged from the filter body through the second drain pipe.

[0009] Preferably, hydraulic valves are provided on both the first three-way valve and the second three-way valve.

[0010] Preferably, the first water inlet pipe and the second water inlet pipe are interconnected.

[0011] Preferably, a pressure gauge and a flow meter are provided on the filter body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: A water circulation filtration system applicable to the cooling water of a wax board machine proposed by the present utility model has a compact filter structure, saves space, can be adjusted according to the needs of the actual site, and is convenient for equipment installation; the equipment has good anti-corrosion performance and a long service life; it has a fully automatic program control and is easy to operate and maintain; when the equipment is backwashed, it is backwashed one by one in turn, and the filtration system can supply water normally without considering the setting of a backwash water pump; the unique water distribution system and the very evenly distributed water collector make the water flow in a laminar flow throughout the filtration process, the plane of the filter sand bed remains flat during the filtration process, and the water quality of the effluent is stable; the long-term operation cost is low, saving water, electricity and maintenance costs; it effectively avoids the wax board machine from stopping due to excessive solidified paraffin impurities in the cooling water during production work.

[0013] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the filtration system of a water circulation filtration system applicable to the cooling water of a wax board machine.

[0015] Figure 2 It is a schematic diagram of the cleaning system of a water circulation filtration system applicable to the cooling water of a wax board machine.

[0016] In the figure: 1. Filter body; 11. Water distribution layer; 12. Filter layer; 13. Water collection layer; 2. First three-way valve; 3. Second three-way valve; 4. Filtration system; 41. First water inlet pipe; 42. First drain pipe; 5. Cleaning system; 51. Second water inlet pipe; 52. Second drain pipe; 6. Hydraulic valve; 7. Pressure gauge; 8. Flow meter. Detailed Embodiments

[0017] The following will specifically and detailedly describe the implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0018] In conjunction with Figure 1 and Figure 2As shown in the figure, a water circulation filtration system suitable for the cooling water of a wax plate machine is used to filter impurities in the cooling water of the wax plate machine and recycle the cooling water. It includes a filter main body 1. A first three-way valve 2 is arranged at the top of the filter main body 1, and a second three-way valve 3 is arranged at the bottom of the filter main body 1. Inside the filter main body 1, a water distribution layer 11, a filtration layer 12, and a water collection layer 13 are arranged from top to bottom. The filter main body 1 is connected to a filtration system 4 and a cleaning system 5. The filtration system 4 is used to filter and recycle the cooling water of the wax plate machine entering the inside of the filter main body 1. The cleaning system 5 is used to remove the impurities filtered by the filtration system 4 from the filter main body 1. Specifically, a water circulation filtration system suitable for the cooling water of a wax plate machine aims to significantly improve the quality of the cooling water during the production process of the wax plate machine, while realizing the maximum recycling of water resources, reducing production costs and environmental pollution. The filter main body 1 is made of high-strength corrosion-resistant materials such as stainless steel or special alloys to cope with the chemical substances and temperature changes that may be contained in the cooling water, ensuring a stable structure and a long service life. Its internal structure is designed compactly, optimizing the water flow path and reducing pressure loss. The first three-way valve 2 is installed at the top of the filter main body and serves as the gateway for the cooling water to enter the system. The second three-way valve 3 is located at the bottom of the filter main body and is responsible for discharging the filtered clean cooling water or performing necessary system drainage operations. The water distribution layer 11 is designed with a perforated plate or a spraying device to ensure that the cooling water is evenly distributed on the filtration layer, improving the filtration efficiency and avoiding local overload phenomena. The filtration layer 12 is composed of multiple layers of precision filter screens, activated carbon, ceramic particles, or special fiber materials. These materials can effectively remove suspended solids, impurities, oils, and some dissolved pollutants in the water, ensuring that the water quality is clear and transparent. The water collection layer 13 collects the cooling water purified by the filtration layer and guides it to the second three-way valve 3 through a reasonably designed water outlet for recycling by the wax plate machine. The filtration system 4 integrates advanced filtration technologies and control systems. Through a PLC or an intelligent control unit, an automated filtration process is realized. The system can monitor the water quality changes in real time and automatically adjust the filtration intensity according to preset parameters to ensure that the water quality of the outlet always meets the production requirements. Cleaning system 5: This system uses physical or chemical methods to remove the impurities accumulated on the filtration layer. Physical methods such as backwashing and air-water mixed washing use high-pressure water flow or gas to scour the surface of the filter screen; chemical methods may involve using specific cleaning agents to remove stubborn stains through soaking or circulating flushing. The cleaning system is also equipped with an automatic detection and alarm function. Once it detects a decrease in filtration efficiency or the accumulation of impurities to a certain extent, it automatically starts the cleaning program without manual intervention. This water circulation filtration system provides a comprehensive solution for the cooling water of the wax plate machine with its characteristics of high efficiency, intelligence, and easy maintenance, not only ensuring the smooth progress of the production process but also promoting the sustainable development of the enterprise.”

[0019] Reference Figure 1As shown, the filtration system 4 includes a first three-way valve 2 connected to the top of the filter body 1, and a first water inlet pipe 41 is connected to it. A second three-way valve 3 is connected to the bottom of the filter body 1, and a first drain pipe 42 is connected to it. Specifically, the filtration system 4, as the core part of the entire water circulation filtration system, ensures the efficient filtration and recycling of cooling water. The first water inlet pipe 41 is directly connected to the first three-way valve 2 at the top of the filter body 1 and serves as the main channel for cooling water to enter the filtration system 4. The first water inlet pipe 41 is made of corrosion-resistant and high-pressure-resistant materials to ensure that it will not be damaged by water quality or pressure during the transportation of cooling water. The first drain pipe 42 is also made of high-quality materials to ensure smooth and safe drainage.

[0020] Reference Figure 1 As shown, when the cooling water of the wax plate machine enters the filter body 1 through the first water inlet pipe 41, after passing through the water distribution layer 11, the filtration layer 12, and the water collection layer 13 in sequence, the impurities in the cooling water of the wax plate machine are retained inside the filter body 1, and the filtered water enters the wax plate machine through the first drain pipe 42 for recycling. Specifically, when the cooling water of the wax plate machine flows into the interior of the filter body 1 through the first water inlet pipe 41, the first thing the cooling water encounters is the water distribution layer 11. The water distribution layer 11 evenly and gently disperses the water flow above the entire filtration layer 12, avoiding potential damage or efficiency decline caused by the direct impact of the water flow on the filter medium. Subsequently, the cooling water spills onto the filtration layer 12. The filtration layer 12, as the core filtration area of the entire system, is composed of multiple layers of precision filter screens, adsorption materials, or other high-efficiency filter media, each performing its own functions and working together. The filter screen can intercept and capture larger impurities such as suspended solids and particulate matter in the water, while the adsorption material can adsorb and remove harmful substances such as oils, pigments, odor molecules, and some heavy metal ions dissolved in the water. After being filtered and purified layer by layer, most of the impurities in the cooling water are effectively intercepted, and the water quality is significantly improved. The cooling water that has completed the filtration task then converges into the water collection layer 13. The design of the water collection layer 13 is also ingenious. It can not only efficiently collect and guide the filtered clean water flow to the first drain pipe 42 but also slow down the water flow speed to a certain extent, allowing the tiny impurities in the water to have the opportunity to further precipitate or be captured by the remaining filter media. Finally, the cooling water that has been filtered and purified layer by layer flows through the first drain pipe 42 to the wax plate machine to continue its mission of recycling. At this time, the cooling water is clear and transparent with extremely low impurity content, which can not only provide a stable and reliable cooling effect for the wax plate machine but also effectively extend the service life of the equipment and reduce the maintenance cost.

[0021] Reference Figure 2As shown, the cleaning system 5 includes a second three-way valve 3 connected to the bottom of the filter body 1 and a second water inlet pipe 51, and a first three-way valve 2 connected to the top of the filter body 1 and a second drain pipe 52. Specifically, the cleaning system 5 regularly conducts a thorough cleaning of the interior of the filter body 1 to ensure the continuous and efficient operation of the filtration system. The second water inlet pipe 51 is directly connected to the second three-way valve 3 at the bottom of the filter body 1 and is the main channel for clean water or cleaning medium to enter the filter body 1 for cleaning operations. The material of the second water inlet pipe 51 also needs to have good corrosion resistance and pressure resistance to cope with various chemical substances and water pressure changes that may be encountered during the cleaning process. Before the cleaning operation begins, the operator can introduce clean water or a specific cleaning agent into the second water inlet pipe 51 by controlling the valve, and then these cleaning media will enter the interior of the filter body 1 through the second three-way valve 3. The cleaning system 5 may provide multiple cleaning modes for selection, such as backwashing mode, chemical cleaning mode, etc. In the backwashing mode, after the clean water enters the filter body 1 through the second water inlet pipe 51, the filter layer 12 and the water distribution layer 11 are flushed in the reverse direction by the high-pressure water flow, and the impurities intercepted therein are flushed out and discharged through the second drain pipe 52. In the chemical cleaning mode, an appropriate amount of cleaning agent needs to be added to the clean water, and stubborn stains that are difficult to remove by physical methods are removed through chemical reactions. The second drain pipe 52 is connected to the first three-way valve 2 at the top of the filter body 1 and is responsible for discharging the wastewater, impurities, and cleaning agent residues generated during the cleaning process from the system.

[0022] Reference Figure 2As shown, when impurities continuously accumulate inside the filter body 1 and the head loss reaches a preset value, clean water enters the inside of the filter body 1 through the second water inlet pipe 51, and successively passes through the water collection layer 13, the filter layer 12, and the water distribution layer 11 to clean it, and the sewage with impurities is discharged from the filter body 1 through the second drain pipe 52. Specifically, when the head loss gradually accumulates inside the filter body 1 due to the accumulation of impurities and reaches the preset warning value, the cleaning system 5 will be triggered automatically or manually to start the cleaning program. This process marks that the filter body 1 is about to undergo a deep cleaning to ensure the continuous stability of its filtering performance and working efficiency. After the cleaning program is started, clean water, as the cleaning medium, is introduced into the inside of the filter body 1 through the second water inlet pipe 51. Contrary to the conventional water flow direction, this time the clean water adopts a bottom-up flow path and first enters the water collection layer 13. The water collection layer 13 serves as the starting point of the cleaning process at this moment. It uses its own structural characteristics to guide the clean water to be evenly distributed and penetrate upward. As the clean water continuously rises, it passes through the filter layer 12. The filter layer 12, which usually intercepts impurities and purifies water quality, becomes the object to be cleaned during the cleaning process. The clean water carries a certain amount of kinetic energy and scouring force, passes through the pores of the filter medium, and strips the impurities attached to the surface and inside of the medium one by one. At the same time, due to the upward movement of the clean water, some impurities may also be suspended in the water and move upward with the water flow. Finally, the clean water carrying the stripped impurities reaches the water distribution layer 11. The water distribution layer 11 collects the sewage with impurities during the cleaning process and guides it to the top outlet of the filter body 1, that is, the second drain pipe 52. The second drain pipe 52, as the discharge channel for the cleaning sewage, ensures that the sewage with impurities can be quickly and smoothly discharged from the filter body 1, avoiding the occurrence of secondary pollution. The entire cleaning process is a continuous and efficient cycle, which ensures that every corner inside the filter body 1 can be fully cleaned. As the cleaning progresses, the impurities inside the filter body 1 are gradually removed, and the head loss gradually decreases until it returns to the normal level. At this time, the cleaning program ends, and the filter body 1 resumes its filtering function again and continues to provide clean and efficient cooling water for the wax slab machine. It should be noted that the amount of clean water used and the cleaning time during the cleaning process need to be adjusted according to the actual situation. Too little clean water may not be able to completely remove impurities, while too much clean water will cause waste of water resources. At the same time, the control of the cleaning time is also crucial. Too long or too short cleaning time may affect the cleaning effect or the service life of the filter body 1. Therefore, in actual operation, it is necessary to reasonably set the cleaning parameters according to the actual situation of the filter body 1 and the production requirements.

[0023] Combined with Figure 1 and Figure 2As shown, hydraulic valves 6 are provided on both the first three-way valve 2 and the second three-way valve 3. Specifically, hydraulic valves 6 are provided on both the first three-way valve 2 and the second three-way valve 3. The hydraulic valve 6 automatically controls the opening and closing of the valve through the power of the water flow, without external power or mechanical drive. In the filtration system 4, the introduction of the hydraulic valve 6 provides strong support for the automatic control, energy conservation and emission reduction, and operation stability of the system. The working principle of the hydraulic valve 6 is based on the principle of fluid mechanics. When the water flow passes through the valve, the pressure difference or flow rate change generated by it acts on specific mechanisms (such as pistons, diaphragms, etc.) inside the valve, thereby triggering the opening or closing action of the valve. When the water flow pressure reaches the preset value, the hydraulic valve will automatically open to allow the water flow to pass through; while when the water flow pressure drops below a certain threshold, the valve will close to block the water flow. This automatic control method based on the characteristics of the water flow itself not only simplifies the system structure, reduces the maintenance cost, but also improves the response speed and reliability of the system. It helps to maintain the stable operation of the filtration system 4 and extend the service life of the filter body 1.

[0024] Combined with Figure 1 and Figure 2 As shown, the first water inlet pipe 41 and the second water inlet pipe 51 are interconnected. Specifically, the first water inlet pipe 41 is usually responsible for introducing the cooling water of the waxing machine into the filter body 1 for filtration treatment, while the second water inlet pipe 51 is used to inject clean water into the filter body 1 for cleaning when the cleaning system 5 is working. The interconnection between the two means that in specific situations, these two systems can share the water source or achieve flexible water flow scheduling. For example, in an emergency, if the water flow in the first water inlet pipe 41 is blocked or insufficient, the water source of the second water inlet pipe 51 can be temporarily borrowed by adjusting the valve to ensure the normal operation of the filtration system. In some advanced filtration systems, in order to achieve higher resource utilization efficiency, a mode may be designed, that is, during non-cleaning periods, part of the preliminarily treated cooling water (from the first water inlet pipe 41) is introduced into the second water inlet pipe 51 as the pretreatment stage of the cleaning water, and the water quality is filtered or adjusted again to reduce the dependence on fresh clean water. This design not only saves water resources, but also reduces the operation cost. By interconnecting the first water inlet pipe 41 and the second water inlet pipe 51, the pipeline layout and valve configuration of the system can be simplified to a certain extent. Reducing unnecessary pipelines and valves can reduce the risk of leakage, lower the maintenance difficulty, and also help to improve the overall aesthetics and compactness of the system. A switching valve is provided at the connection of the two water inlet pipes, allowing the operator to choose whether to connect the two pipes according to needs. This design not only ensures the flexibility of the system, but also facilitates daily management and maintenance.

[0025] Combined with Figure 1 and Figure 2As shown, a pressure gauge 7 and a flowmeter 8 are provided on the filter body 1. Specifically, the pressure gauge 7 and the flowmeter 8 are provided on the filter body 1, providing valuable real-time data support for the operation monitoring, performance evaluation and fault troubleshooting of the system. The pressure gauge 7 can continuously monitor the pressure change inside the filter body 1 to ensure that the system operates within the set safe pressure range. This is of great significance for preventing equipment damage or leakage accidents caused by excessive pressure. By observing the change in the reading of the pressure gauge, the filtration efficiency of the filter layer 12 can be indirectly evaluated. When impurities accumulate inside the filter and the head loss increases, the reading of the pressure gauge 7 will rise accordingly. Therefore, regularly recording and analyzing the data of the pressure gauge helps to promptly detect and handle the problem of decreasing filtration efficiency. When the reading of the pressure gauge 7 reaches the preset cleaning threshold, it indicates that the inside of the filter body 1 needs to be cleaned. At this time, the operator can start the cleaning program in a timely manner according to the indication of the pressure gauge to ensure the continuous and efficient operation of the filtration system. The flowmeter 8 can accurately measure the water flow rate passing through the filter body 1 to ensure that the system conducts water circulation according to the design requirements. By comparing the water flow rate data under different working conditions, the operation efficiency of the system can be analyzed, and parameters such as the rotational speed of the water pump and the opening degree of the valve can be adjusted accordingly to optimize the overall performance of the system. When the reading of the flowmeter 8 is abnormal (such as suddenly decreasing or being zero), it may mean problems such as pipeline blockage, valve failure or water pump failure. At this time, the operator can quickly locate the fault point and take corresponding maintenance measures according to the indication of the flowmeter 8 to prevent the fault from expanding and affecting the normal operation of the system. Combining the pressure gauge 7 and the flowmeter 8 can achieve comprehensive monitoring of the operation status of the filtration system. By regularly recording and analyzing the data of these two instruments, the operator can promptly detect and handle potential problems in the system to ensure the safe, stable and efficient operation of the filtration system. At the same time, these data can also provide strong support for the optimal design, upgrade transformation and fault troubleshooting of the system.

[0026] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A water circulation filtration system suitable for cooling water of a wax plate machine, used for filtering impurities in the cooling water of the wax plate machine and recycling the cooling water, comprising a filter body (1), characterized in that: A first three-way valve (2) is arranged at the top of the filter body (1), a second three-way valve (3) is arranged at the bottom of the filter body (1), a water distribution layer (11), a filter layer (12) and a water collection layer (13) are arranged inside the filter body (1) from top to bottom, and the filter body (1) is connected to a filter system (4) and a cleaning system (5); The filtering system (4) is used to filter and recycle the wax plate machine cooling water that enters the filter body (1); The cleaning system (5) is used to remove impurities filtered by the filtering system (4) from the filter body (1).

2. A water circulation filtration system suitable for cooling water of a wax plate machine according to claim 1, characterized in that: The filtering system (4) comprises a first three-way valve (2) at the top of the filter body (1) connected to a first water inlet pipe (41), and a second three-way valve (3) at the bottom of the filter body (1) connected to a first drainage pipe (42).

3. A water circulation filtration system suitable for cooling water of a wax plate machine according to claim 2, characterized in that: When cooling water for the wax plate machine enters the interior of the filter body (1) through the first water inlet pipe (41), impurities in the cooling water for the wax plate machine remain in the interior of the filter body (1) after passing through the water distribution layer (11), the filter layer (12) and the water collection layer (13) in sequence, and the filtered water enters the wax plate machine through the first drainage pipe (42) for recycling.

4. A water circulation filtration system suitable for cooling water of a wax plate machine according to claim 3, characterized in that: The cleaning system (5) comprises a second three-way valve (3) at the bottom of the filter body (1) connected to a second water inlet pipe (51), and a first three-way valve (2) at the top of the filter body (1) connected to a second drainage pipe (52).

5. A water circulation filtration system suitable for cooling water of a wax plate machine according to claim 4, characterized in that: When impurities continue to accumulate inside the filter body (1) so that the pressure head loss reaches a preset value, clean water enters the filter body (1) through the second water inlet pipe (51), passes through the water collection layer (13), the filter layer (12) and the water distribution layer (11) in sequence to clean it, and the sewage containing impurities is discharged from the filter body (1) through the second drainage pipe (52).

6. A water circulation filtration system suitable for cooling water of a wax plate machine according to claim 5, characterized in that: The first three-way valve (2) and the second three-way valve (3) are both provided with a hydraulic valve (6).

7. A water circulation filtration system suitable for cooling water of a wax plate machine according to claim 6, characterized in that: The first water inlet pipe (41) and the second water inlet pipe (51) are connected to each other.

8. A water circulation filtration system suitable for cooling water of a wax plate machine according to claim 7, characterized in that: The filter body (1) is provided with a pressure gauge (7) and a flow meter (8).

Images