An integrated intelligent bypass filter system

Abstract

The utility model discloses an integrated intelligent side flow filter system belongs to side flow filter technical field. An integrated intelligent side flow filter system, including first side flow filter, second side flow filter, third side flow filter, HMI module and programmable logic controller, wherein, first side flow filter, second side flow filter and third side flow filter are parallelly connected between, and the water inlet and water outlet pipe of first side flow filter is provided with first automatic switch valve and fifth automatic switch valve respectively. To solve the problem that when the original preset condition needs to be adjusted due to the change of process, a professional programming engineer is needed to download the program, and the program needs to be modified and imported into the programmable logic controller, the automatic cleaning mode and the operation mode can improve the operation efficiency and the filtering effect of the side flow filter, and the manual intervention is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bypass filter technology, specifically an integrated intelligent bypass filter system. Background Technology

[0002] Bypass filters, also known as bypass filters or bypass filtration systems, are common filtration devices in water treatment systems. They are mainly used to remove suspended solid particles in water, such as silt, rust, and particulate matter, to protect other equipment in the system from damage by these impurities and ensure water cleanliness. In existing industrial circulating cooling water systems, bypass filters require a backwash water source, a backwash water pump, and a backwash water tank for cleaning, or the bypass filter inlet water is used as the backwash water source, which reduces the backwashing effect and affects the quality of the effluent.

[0003] Existing cleaning methods mainly include three types: manual cleaning, semi-automatic cleaning, and fully automatic cleaning. Among them, fully automatic cleaning automatically controls the cleaning process through preset conditions of the programmable logic controller system without human intervention. However, if the process of the industrial circulating cooling water system changes and the original preset conditions need to be adjusted, a professional programming engineer is required to download the program, modify the program, and then import the program back to the programmable logic controller, which is a relatively complicated operation. Utility Model Content

[0004] The purpose of this invention is to provide an integrated intelligent bypass filter system. The automated cleaning method and operation mode can improve the operating efficiency and filtration effect of the bypass filter, reduce manual intervention, and solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated intelligent bypass filter system, comprising a first bypass filter, a second bypass filter, a third bypass filter, an HMI module, and a programmable logic controller, wherein the first bypass filter, the second bypass filter, and the third bypass filter are connected in parallel;

[0006] The first bypass filter is equipped with a first automatic switching valve and a fifth automatic switching valve in its inlet and outlet pipes, respectively. The first bypass filter is equipped with a third automatic switching valve and a second automatic switching valve in its backwash inlet and outlet pipes, respectively. The first bypass filter is equipped with a fourth automatic switching valve in its forward wash outlet pipe.

[0007] The second bypass filter is equipped with a sixth automatic switch valve and a tenth automatic switch valve in its inlet and outlet pipes, respectively; the second bypass filter is equipped with an eighth automatic switch valve and a seventh automatic switch valve in its backwash inlet and outlet pipes, respectively; and the second bypass filter is equipped with a ninth automatic switch valve in its forward wash outlet pipe.

[0008] The inlet and outlet pipes of the third bypass filter are respectively equipped with an eleventh automatic switching valve and a fifteenth automatic switching valve. The backwash inlet and outlet pipes of the third bypass filter are respectively equipped with a thirteenth automatic switching valve and a twelfth automatic switching valve. The forward wash outlet pipe of the third bypass filter is equipped with a fourteenth automatic switching valve.

[0009] Preferably, a first transparent tube is provided in the backwash outlet pipe of the first bypass filter, a second transparent tube is provided in the backwash outlet pipe of the second bypass filter, and a third transparent tube is provided in the backwash outlet pipe of the third bypass filter.

[0010] With the above method, operators can observe through the fluoroscopic tube whether there is filter media loss at the backwash outlet, the intensity of backwashing, and the turbidity changes of the backwash water. This helps operators to intuitively understand the water quality changes and backwashing effect during the backwashing process, and to adjust the backwashing parameters in a timely manner to ensure the backwashing effect while avoiding filter media loss and water quality deterioration.

[0011] Preferably, a first automatic exhaust valve is provided at the highest point of the exhaust pipe of the first bypass filter, a second automatic exhaust valve is provided at the highest point of the exhaust pipe of the second bypass filter, and a third automatic exhaust valve is provided at the highest point of the exhaust pipe of the third bypass filter.

[0012] The above solution eliminates the need for manual operation, only venting and not draining, automatically removing gas from the pipeline and preventing gas accumulation in the system, which could affect filtration, backwashing, and sedimentation effects, as well as the normal operation of the system.

[0013] Preferably, the inlet and outlet of the first bypass filter are respectively equipped with a first pressure gauge and a second pressure gauge, the inlet and outlet of the second bypass filter are respectively equipped with a third pressure gauge and a fourth pressure gauge, and the inlet and outlet of the third bypass filter are respectively equipped with a fifth pressure gauge and a sixth pressure gauge.

[0014] Preferably, the inlet and outlet of the first bypass filter are equipped with a first differential pressure transmitter, the inlet and outlet of the second bypass filter are equipped with a second differential pressure transmitter, and the inlet and outlet of the third bypass filter are equipped with a third differential pressure transmitter.

[0015] The above solution provides intuitive pressure gauge readings, making it easy for operators to understand and use. Regularly checking the pressure difference allows for real-time monitoring of the bypass filter's operating status and assessment of its clogging level, which helps ensure stable operation of the bypass filter and improves the overall efficiency and safety of the system.

[0016] Preferably, a first automatic regulating valve and a first flow transmitter are installed in the main outlet pipes of the first, second, and third bypass filters, and a second automatic regulating valve and a second flow transmitter are installed in the main backwash inlet pipes of the first, second, and third bypass filters.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model uses the effluent from the bypass filter as the backwash water source. The backwash water has a high quality, which helps to remove impurities on the filter media more effectively and improves the backwashing effect of the bypass filter. It is an effective way of water recycling, which helps to improve the operating efficiency and economy of the water system, while reducing the impact on the environment.

[0019] 2. This utility model's automated cleaning method and operation mode can improve the operating efficiency and filtration effect of the bypass filter, reduce manual intervention, and extend the service life of the bypass filter. Through the HMI, parameters such as the start-up pressure difference, backwash time, and backwash cycle of the bypass filter can be adjusted, enabling precise control of the backwash process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the process flow of this utility model;

[0021] Figure 2 This is a schematic diagram of the control topology of this utility model.

[0022] In the diagram: 10. First bypass filter; 11. First automatic switching valve; 12. Second automatic switching valve; 13. Third automatic switching valve; 14. Fourth automatic switching valve; 15. Fifth automatic switching valve; 16. First automatic vent valve; 17. First differential pressure transmitter; 18. First pressure gauge; 19. Second pressure gauge; 20. Second bypass filter; 21. Sixth automatic switching valve; 22. Seventh automatic switching valve; 23. Eighth automatic switching valve; 24. Ninth automatic switching valve; 25. Tenth automatic switching valve; 26. Second automatic vent valve; 27. Second differential pressure transmitter; 28. Third pressure gauge; 29. ​​Fourth pressure gauge; 30. Third bypass filter; 31. Eleventh automatic switching valve; 32. Twelfth automatic switching valve; 33. Thirteenth automatic switching valve; 34. Fourteenth automatic switching valve; 35. Fifteenth automatic switching valve; 36. Third automatic exhaust valve; 37. Third differential pressure transmitter; 38. Fifth pressure gauge; 39. Sixth pressure gauge; 41. First fluoroscopy tube; 42. Second fluoroscopy tube; 43. Third fluoroscopy tube; 51. First automatic regulating valve; 52. First flow transmitter; 61. Second automatic regulating valve; 62. Second flow transmitter; 71. HMI module; 72. Programmable logic controller; 73. Bypass filter control module. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To address the cumbersome process of requiring specialized programming engineers to download, modify, and re-import programs to the programmable logic controller (PLC) when process conditions change and pre-defined settings need to be adjusted, please refer to [link to relevant documentation]. Figure 1-2 The present invention provides the following solution:

[0025] An integrated intelligent bypass filter system is provided, which can be configured with multiple bypass filters connected in parallel. Taking three bypass filters connected in parallel as an example, the system includes a first bypass filter 10, a second bypass filter 20, a third bypass filter 30, an HMI module 71, and a programmable logic controller 72.

[0026] The HMI module 71 uses the program preset by the programmable logic controller 72 to automatically control the operation and cleaning process of the bypass filter control module 73. The cleaning is carried out by time-type control and differential pressure control. The first bypass filter 10, the second bypass filter 20, or the third bypass filter 30 is cleaned once after running for a set time. After the cleaning is completed, the time is restored to 0h.

[0027] If the backwash time has not arrived within the working time and the differential pressure rises to the set value, the first bypass filter 10, the second bypass filter 20, or the third bypass filter 30 will immediately enter the backwash state, and the time will return to 0h after the cleaning is completed.

[0028] The bypass filter automatically cleans itself in turn, preventing two or three bypass filters from cleaning simultaneously. This avoids insufficient filtered water output or excessive backwash water usage that could cause the system to malfunction.

[0029] The specific working method is as follows:

[0030] 1) Operation process:

[0031] The second automatic switching valve 12, the third automatic switching valve 13, the fourth automatic switching valve 14, the seventh automatic switching valve 22, the eighth automatic switching valve 23, the ninth automatic switching valve 24, the twelfth automatic switching valve 32, the thirteenth automatic switching valve 33, and the fourteenth automatic switching valve 34 are closed. The first automatic switching valve 11, the fifth automatic switching valve 15, the sixth automatic switching valve 21, the tenth automatic switching valve 25, the eleventh automatic switching valve 31, and the fifteenth automatic switching valve 35 are opened. Cooling water is supplied into the first bypass filter 10, the second bypass filter 20, and the third bypass filter 30. After being filtered through the filter media, suspended solid particles such as silt, rust, and particulate matter in the water are removed to protect other equipment in the system from damage by these impurities and to ensure the cleanliness of the water. The second automatic regulating valve 61 receives a 4-20mA signal from the second flow transmitter 62 and automatically adjusts the valve opening before returning the water to the cooling system.

[0032] 2) Cleaning process:

[0033] The following description is based on the example of the first bypass filter 10 and the second bypass filter 20 being operated, and the third bypass filter 30 being cleaned:

[0034] Backwash: Close the second automatic switch valve 12, the third automatic switch valve 13, the fourth automatic switch valve 14, the seventh automatic switch valve 22, the eighth automatic switch valve 23, the ninth automatic switch valve 24, the eleventh automatic switch valve 31, the fourteenth automatic switch valve 34, and the fifteenth automatic switch valve 35; open the first automatic switch valve 11, the fifth automatic switch valve 15, the sixth automatic switch valve 21, the tenth automatic switch valve 25, the twelfth automatic switch valve 32, and the thirteenth automatic switch valve 33. Cooling water is supplied into the first bypass filter 10 and the second bypass filter 20. After filtration through the filter media, part of the filtered water receives a 4-20mA signal from the second flow transmitter 62 through the second automatic regulating valve 61. After automatically adjusting the valve opening, the water is returned to the cooling system.

[0035] Another portion of the filtered water receives a 4-20mA signal from the first flow transmitter 52 via the first automatic regulating valve 51. After automatically adjusting the valve opening, it enters the third bypass filter 30 through the thirteenth automatic switching valve 33 for backwashing. The backwash water is discharged after passing through the twelfth automatic switching valve 32 and the third viewing tube 43 installed on the backwash water pipeline. The operator can intuitively understand the water quality changes and backwashing effect during the backwashing process by observing the third viewing tube 43. The backwashing process usually lasts for 10 minutes.

[0036] Settling: Close the second automatic switch valve 12, the third automatic switch valve 13, the fourth automatic switch valve 14, the seventh automatic switch valve 22, the eighth automatic switch valve 23, the ninth automatic switch valve 24, the eleventh automatic switch valve 31, the twelfth automatic switch valve 32, the thirteenth automatic switch valve 33, the fourteenth automatic switch valve 34, and the fifteenth automatic switch valve 35, and open the first automatic switch valve 11, the fifth automatic switch valve 15, the sixth automatic switch valve 21, and the tenth automatic switch valve 25. The settling process usually lasts for 5 minutes.

[0037] Forward washing: Close the second automatic switch valve 12, the third automatic switch valve 13, the fourth automatic switch valve 14, the seventh automatic switch valve 22, the eighth automatic switch valve 23, the ninth automatic switch valve 24, the twelfth automatic switch valve 32, the thirteenth automatic switch valve 33, and the fifteenth automatic switch valve 35; open the first automatic switch valve 11, the fifth automatic switch valve 15, the sixth automatic switch valve 21, the tenth automatic switch valve 25, the eleventh automatic switch valve 31, and the fourteenth automatic switch valve 34. Part of the cooling water supply enters the first bypass filter 10 and the second bypass filter 20, and is filtered through the filter media. The second automatic regulating valve 61 receives the 4-20mA signal from the second flow transmitter 62, automatically adjusts the valve opening, and then returns the water to the cooling system. The other part of the cooling water supply enters the third bypass filter 30 through the eleventh automatic switch valve 31 for forward washing. The effluent from the forward washing passes through the fourteenth automatic switch valve 34 for sewage discharge. The forward washing process usually lasts for 10 minutes.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated intelligent bypass filter system, characterized in that, It includes a first bypass filter, a second bypass filter, a third bypass filter, an HMI module, and a programmable logic controller, wherein the first bypass filter, the second bypass filter, and the third bypass filter are connected in parallel; The first bypass filter is equipped with a first automatic switching valve and a fifth automatic switching valve in its inlet and outlet pipes, respectively. The first bypass filter is equipped with a third automatic switching valve and a second automatic switching valve in its backwash inlet and outlet pipes, respectively. The first bypass filter is equipped with a fourth automatic switching valve in its forward wash outlet pipe. The second bypass filter is equipped with a sixth automatic switch valve and a tenth automatic switch valve in its inlet and outlet pipes, respectively; the second bypass filter is equipped with an eighth automatic switch valve and a seventh automatic switch valve in its backwash inlet and outlet pipes, respectively; and the second bypass filter is equipped with a ninth automatic switch valve in its forward wash outlet pipe. The inlet and outlet pipes of the third bypass filter are respectively equipped with an eleventh automatic switching valve and a fifteenth automatic switching valve. The backwash inlet and outlet pipes of the third bypass filter are respectively equipped with a thirteenth automatic switching valve and a twelfth automatic switching valve. The forward wash outlet pipe of the third bypass filter is equipped with a fourteenth automatic switching valve.

2. The integrated intelligent bypass filter system according to claim 1, characterized in that: The first bypass filter has a first transparent tube installed in its backwash outlet pipe, the second bypass filter has a second transparent tube installed in its backwash outlet pipe, and the third bypass filter has a third transparent tube installed in its backwash outlet pipe.

3. The integrated intelligent bypass filter system according to claim 1, characterized in that: The highest point of the exhaust pipe of the first bypass filter is provided with a first automatic exhaust valve, the highest point of the exhaust pipe of the second bypass filter is provided with a second automatic exhaust valve, and the highest point of the exhaust pipe of the third bypass filter is provided with a third automatic exhaust valve.

4. The integrated intelligent bypass filter system according to claim 1, characterized in that: The first bypass filter is equipped with a first pressure gauge and a second pressure gauge at its inlet and outlet, respectively; the second bypass filter is equipped with a third pressure gauge and a fourth pressure gauge at its inlet and outlet, respectively; and the third bypass filter is equipped with a fifth pressure gauge and a sixth pressure gauge at its inlet and outlet, respectively.

5. The integrated intelligent bypass filter system according to claim 1, characterized in that: The first bypass filter is equipped with a first differential pressure transmitter at its inlet and outlet, the second bypass filter is equipped with a second differential pressure transmitter at its inlet and outlet, and the third bypass filter is equipped with a third differential pressure transmitter at its inlet and outlet.

6. The integrated intelligent bypass filter system according to claim 1, characterized in that: The first bypass filter, the second bypass filter, and the third bypass filter are each equipped with a first automatic regulating valve and a first flow transmitter in their main outlet pipes, and a second automatic regulating valve and a second flow transmitter are each equipped with a main backwash inlet pipe in their main outlet pipes.

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