An automatic blowdown filter apparatus

Abstract

The application discloses an automatic blowdown filter device, which comprises a first filter cartridge, a second filter cartridge and a water inlet pipe, the middle part of the water inlet pipe is provided with a water inlet, and the two ends of the water inlet pipe are connected with the first filter cartridge and the second filter cartridge respectively; the middle part of a water outlet pipe is provided with a water outlet, and the two ends of the water outlet pipe are connected with the first filter cartridge and the second filter cartridge respectively; the middle part of a blowdown pipe is provided with a blowdown opening, and the two ends of the blowdown pipe are connected with the first filter cartridge and the second filter cartridge respectively; the first filter cartridge and the second filter cartridge are provided with the same filter structure; when the notch on the upper baffle is closed by the gate mechanism, the notch on the lower baffle is opened; when the notch on the lower baffle is closed by the gate mechanism, the notch on the upper baffle is opened. The patent has a small structure, can be used in a small water supply system, and can automatically backwash the filter element under the condition that the equipment does not stop operating, so that the cleaning of the filter element is ensured, and a reliable water source is provided for water equipment.

Description

Technical Field

[0001] This invention relates to the field of sewage filter technology, and more specifically to an automatic sewage filter device. Background Technology

[0002] In water supply systems, to prevent debris from accumulating or clogging the interior of water-using equipment, filtration devices need to be installed on the water supply pipelines. Typically, these devices are Y-type filters or automatic wastewater filters. Y-type filters have a simple structure and occupy less space, but conventional Y-type filters lack automatic wastewater discharge functionality and have relatively high requirements for water cleanliness. When there is a large amount of debris in the water, the filter will quickly become clogged, failing to meet the needs of the water-using equipment. This requires shutting down the equipment, disassembling the Y-type filter, and cleaning the filter cartridge, disrupting the normal operation of the equipment and consuming considerable manpower and resources. Automatic wastewater filters, on the other hand, generally have a more complex structure, occupy more space, and require complex maintenance, making them unsuitable for general water supply pipeline systems. Summary of the Invention

[0003] Therefore, the present invention provides an automatic sewage discharge filter device to solve the technical problems in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic sewage discharge filter device includes: a first filter cartridge, a second filter cartridge, and...

[0006] The water inlet pipe has a water inlet in the middle and its two ends are connected to the first filter cartridge and the second filter cartridge, respectively.

[0007] The water outlet pipe has a water outlet in the middle and its two ends are connected to the first filter cartridge and the second filter cartridge, respectively.

[0008] A sewage pipe is provided with a sewage outlet in the middle of the sewage pipe, and the two ends of the sewage pipe are respectively connected to the first filter cartridge and the second filter cartridge;

[0009] The first and second filter cartridges have identical filtration structures.

[0010] The filtering structure includes:

[0011] An upper partition is disposed at the upper part of the first filter cartridge.

[0012] The lower partition is disposed at the lower part of the first filter cartridge, and a filtration chamber is formed between the upper partition and the lower partition; a water inlet chamber is formed between the upper partition and the top of the first filter cartridge; a sewage discharge chamber is formed between the upper partition and the bottom of the filter cartridge; and the water inlet chamber, the filtration chamber, and the sewage discharge chamber are connected by notches provided on the upper partition and the lower partition.

[0013] Filter element, wherein the filter element is disposed within the filter chamber;

[0014] A gate mechanism, which is slidably disposed within the first filter cylinder;

[0015] A driving mechanism is disposed outside the first filter cartridge and is used to drive the gate mechanism to reciprocate up and down inside the first filter cartridge. When the gate mechanism closes the notch on the upper partition, the notch on the lower partition opens; when the gate mechanism closes the notch on the lower partition, the notch on the upper partition opens.

[0016] In some embodiments, the gate mechanism includes a shaft, an upper gate, a lower gate, and a transmission rack. The upper and lower ends of the shaft slide and seal through the top and bottom of the filter cartridge, respectively. The upper gate is disposed in the water inlet chamber and is fixedly connected to the shaft. The lower gate is disposed in the sewage discharge chamber and is fixedly connected to the shaft. The transmission rack is disposed at one end of the shaft and is used to cooperate with the drive mechanism.

[0017] In some embodiments, the gate mechanism further includes: an upper limit switch, a lower limit switch, an upper limit indicator plate, and a lower limit indicator plate. The upper limit switch is disposed on the upper outer side of the first filter cartridge, and the upper limit indicator plate is disposed on the top outer side of the first filter cartridge for triggering the upper limit switch. The lower limit switch is disposed on the bottom outer side of the first filter cartridge, and the lower limit indicator plate is disposed on the bottom outer side of the first filter cartridge for triggering the lower limit switch.

[0018] In some embodiments, the upper and lower gates have the same structure, both consisting of gates arranged axially symmetrically. Each gate includes a gate seat, a sealing plate, a pressure plate, and a locking nut. The shaft has an inwardly recessed stepped threaded section. The gate seat is disposed through the stepped threaded section, and the sealing plate is disposed through the stepped threaded section and placed on the gate seat. The sealing plate has a circumferential boss for sealing the notch provided on the upper or lower partition. The circumferential boss forms a cavity inside the sealing plate. The pressure plate is disposed through the stepped threaded section and placed in the cavity. The locking nut is screwed onto the shaft for locking the pressure plate, the sealing plate, and the gate seat.

[0019] In some embodiments, the gate further includes a pressure plate bolt, which passes through the pressure plate, the sealing plate, and the gate seat in sequence.

[0020] In some embodiments, the two ends of the water inlet pipe are respectively connected to the water inlet chambers of the first filter cartridge and the second filter cartridge.

[0021] In some embodiments, the two ends of the water outlet pipe are respectively connected to the filtration chambers of the first filter cartridge and the second filter cartridge.

[0022] In some embodiments, the two ends of the drain pipe are respectively connected to the drain chambers of the first filter cartridge and the second filter cartridge.

[0023] The beneficial effects of this invention compared to the prior art are:

[0024] This patented structure is compact and can be used in small water supply systems. It can also automatically backwash the filter element without stopping the equipment, ensuring the cleanliness of the filter element and providing a reliable water source for water-using equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of an automatic sewage discharge filter device;

[0026] Figure 2 Schematic diagram of the drive device

[0027] Figure 3 for Figure 1 Sectional view of AA in the middle;

[0028] Figure 4 This is a schematic diagram of the lower gate mechanism;

[0029] Figure 5 for Figure 4 BB cross-section;

[0030] Figure 6 This is a schematic diagram of the installation of the lower stroke indicator plate; Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.

[0036] The following will combine Figure 1-6 This application provides a detailed description of an automatic sewage filter device according to its embodiments. It is worth noting that the following embodiments are merely illustrative of this application and do not constitute a limitation thereof.

[0037] Example 1:

[0038] This patent describes an automatic sewage discharge and filtration device for water supply pipelines. It consists of two identical filter cartridges, namely a first filter cartridge 1 and a second filter cartridge 2. Each cartridge contains a filter element, which is separated and fixed by partitions at the upper and lower ends. Gates are located at both the upper and lower ends of the cartridges, connected to a drive device at the end of the cartridge via a shaft. Under the operation of the drive device, the shaft moves the gates up and down, switching between flow-through and backwashing of the filter element. During water filtration, water flows into the filter element through the inlet at the upper end of the filter cartridge and exits through the outlet on the outer shell. During backwashing, water flows back into the filter element from the outer shell and exits through the drain outlet at the lower end of the cartridge. This automatic sewage discharge system provides a reliable and clean water source for water-using equipment. The following description, in conjunction with the figures, illustrates this process.

[0039] like Figure 1-6As shown, an automatic sewage discharge filter device includes: a first filter cartridge, a second filter cartridge, an inlet pipe, an outlet pipe, and a sewage discharge pipe. The inlet pipe has an inlet in the middle and its two ends are connected to the first filter cartridge and the second filter cartridge, respectively.

[0040] The water outlet pipe has a water outlet in the middle, and its two ends are connected to the first filter cartridge and the second filter cartridge, respectively; the sewage outlet pipe has a sewage outlet in the middle, and its two ends are connected to the first filter cartridge and the second filter cartridge, respectively; that is, the first filter cartridge and the second filter cartridge share the water inlet pipe, the water outlet pipe and the sewage outlet pipe. The first filter cartridge and the second filter cartridge have exactly the same filtration structure.

[0041] The internal structure of the first filter cartridge will be used as an example for the following description.

[0042] The filtration structure includes: an upper partition 4, a lower partition 6, a filter element 1-1, a gate mechanism, and a drive mechanism. The upper partition is disposed at the upper part of the first filter cartridge, and the lower partition is disposed at the lower part of the first filter cartridge, forming a filtration chamber between the upper and lower partitions. A water inlet chamber is formed between the upper partition and the top of the first filter cartridge. A sewage discharge chamber is formed between the upper partition and the bottom of the filter cartridge. The water inlet chamber, filtration chamber, and sewage discharge chamber are connected by notches provided on the upper and lower partitions. The filter element is disposed within the filtration chamber. The gate mechanism is slidably disposed within the first filter cartridge.

[0043] The two ends of the inlet pipe are connected to the inlet chambers of the first filter cartridge and the second filter cartridge, respectively. The two ends of the outlet pipe are connected to the filtration chambers of the first filter cartridge and the second filter cartridge, respectively. The two ends of the drain pipe are connected to the drain chambers of the first filter cartridge and the second filter cartridge, respectively.

[0044] The driving mechanism is located outside the first filter cartridge and is used to drive the gate mechanism to reciprocate up and down inside the first filter cartridge. When the gate mechanism closes the notch on the upper partition, the notch on the lower partition opens; when the gate mechanism closes the notch on the lower partition, the notch on the upper partition opens.

[0045] In some embodiments, the gate mechanism includes a shaft 3, an upper gate 5, a lower gate 7, and a transmission rack. The upper and lower ends of the shaft slide and seal through the top and bottom of the filter cartridge, respectively. The shaft 3 is sealed to the first filter cartridge by an O-ring, and the shaft 3 can move up and down inside the first filter cartridge. The shaft 3 is provided with a stepped threaded section. The upper gate is disposed in the water inlet chamber and is fixedly connected to the stepped threaded section of the shaft. The lower gate is disposed in the sewage discharge chamber and is fixedly connected to the shaft. The transmission rack is disposed at one end of the shaft and is used to cooperate with the drive mechanism.

[0046] In some embodiments, the gate mechanism further includes: an upper limit switch 8, a lower limit switch 9, an upper limit indicator plate 8-1, and a lower limit indicator plate 9-1. The upper limit switch 8 is located on the upper outer side of the first filter cartridge, and the upper limit indicator plate 8-1 is located on the top outer side of the first filter cartridge, for triggering the upper limit switch 8. The lower limit switch 9 is located on the lower outer side of the first filter cartridge, and the lower limit indicator plate 9-1 is located on the bottom outer side of the first filter cartridge, for triggering the lower limit switch 9. The lower limit indicator plate 9-1 is fixed by an indicator plate locking nut 9-2.

[0047] A support plate 10 is provided on the upper part of the filter cartridge, and the drive device 12 and the upper limit switch 8 can be installed on the support plate 10.

[0048] In some embodiments, the upper and lower gates have the same structure, both consisting of gates arranged axially symmetrically. Each gate includes a gate seat 5-1, a sealing plate 5-2, a pressure plate 5-3, and a locking nut 5-5. The shaft has an inwardly recessed stepped threaded section. The gate seat is disposed through the stepped threaded section, and the sealing plate is disposed through the stepped threaded section and placed on the gate seat. The sealing plate has a circumferential boss for sealing the notch provided on the upper or lower partition. The circumferential boss forms a cavity inside the sealing plate. The pressure plate is disposed through the stepped threaded section and placed in the cavity. The locking nut is screwed onto the shaft for locking the pressure plate, the sealing plate, and the gate seat.

[0049] Preferably, the gate further includes pressure plate bolts 5-4, which pass through the pressure plate, sealing plate, and gate seat in sequence. The pressure plate bolts further secure the pressure plate, sealing plate, and gate seat.

[0050] See Figure 2 The drive unit 12 consists of a drive turbine 12-1 and a drive motor 12-2. The drive turbine 12-1 is a combined mechanism, in which the transmission gear meshes with the transmission rack 11. The non-meshing surface of the transmission rack 11 is designed with grooves to cooperate with the drive unit bracket.

[0051] This example is an automatic sewage discharge and filtration device. After the device is connected to the pipeline system, water flows in through the inlet of the device. Through the filtration effect of the filter element inside the device, impurities in the water are filtered out and then flow out through the outlet of the device, providing a clean water source for the users. At the same time, the device has the function of automatically backwashing the filter element. Taking the backwashing of filter element 1-1 as an example, the backwashing method is as follows: After the operation starts, the drive device 12, under automatic control, drives the transmission rack 11 and shaft 3 to move downward. Shaft 3 drives the upper gate 5, lower gate 7, upper stroke indicator plate 8-1 and lower stroke indicator plate 9-1 to move downward synchronously. When the lower stroke indicator plate 9-1 sends an action signal to the lower stroke switch 9, the drive device 12 stops running. At this time, the upper gate 5 contacts and seals the upper partition 4, and the lower gate 7 and lower partition 6 open.

[0052] Part of the water filtered by the second filter cartridge flows into the first filter cartridge through the outlet pipe connecting the two filter cartridges. After backwashing the filter element 1-1, the water flows out through the gap between the lower gate plate 7 and the lower partition plate 6 at the bottom of the first filter cartridge and then flows out through the drain port, completing the backwashing and drainage of the filter element 1-1. After the operation is completed, the drive device 12, under automatic control, drives the transmission rack 11 and shaft 3 to move upward. The shaft 3 drives the upper gate plate 5, lower gate plate 7, upper stroke indicator plate 8-1, and lower stroke indicator plate 9-1 to move upward synchronously. When the upper stroke indicator plate 8-1 triggers the upper stroke switch 8 to send an action signal, the drive device 12 stops running. At this time, the upper gate plate 5 and the upper partition plate 4 open, and the lower gate plate 7 and the lower partition plate 6 contact and seal. The water flows through the inlet, through the filter element 1-1, and out through the outlet, realizing the normal filtration function of the filter element. The same process can realize the automatic backwashing of the filter element in the second filter cartridge. Backwashing can be performed by timed programming or by automatically determining whether backwashing is needed by installing a differential pressure sensor. During the displacement of shaft 3 and transmission rack 11, the transmission is guided by the grooves in the sealing part of shaft 3 in contact with the filter cartridge and the non-meshing surface of transmission rack 11.

[0053] It should be noted that, in addition to being used in small-scale automatic sewage discharge and filtration devices for water supply pipelines, this patent can replace the sealing structure of the upper gate 5 and the lower gate 6 with a hard alloy seal that has better lubrication performance, thereby applying this device to an oil filtration system.

[0054] By adopting a dual-filter cartridge system with shared inlet and outlet pipes, both filter cartridges can flow through simultaneously, increasing the filtration area. The transmission rack is designed with grooves, which can guide the movement of the filter cartridges by engaging with the support.

[0055] Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention shall be included within the scope of protection of this invention.

Claims

1. An automatic sewage discharge filter device, characterized in that: include: First filter cartridge, second filter cartridge and The water inlet pipe has a water inlet in the middle and its two ends are connected to the first filter cartridge and the second filter cartridge, respectively. The water outlet pipe has a water outlet in the middle and its two ends are connected to the first filter cartridge and the second filter cartridge, respectively. A sewage pipe is provided with a sewage outlet in the middle of the sewage pipe, and the two ends of the sewage pipe are respectively connected to the first filter cartridge and the second filter cartridge; The first and second filter cartridges have identical filtration structures. The filtering structure includes: An upper partition is disposed at the upper part of the first filter cartridge. The lower partition is disposed at the lower part of the first filter cartridge, and a filtration chamber is formed between the upper partition and the lower partition; a water inlet chamber is formed between the upper partition and the top of the first filter cartridge; a sewage discharge chamber is formed between the lower partition and the bottom of the first filter cartridge; and the water inlet chamber, the filtration chamber, and the sewage discharge chamber are connected by notches provided on the upper partition and the lower partition. Filter element, wherein the filter element is disposed within the filter chamber; A gate mechanism, which is slidably disposed within the first filter cylinder; A driving mechanism is disposed outside the first filter cartridge and is used to drive the gate mechanism to reciprocate up and down inside the first filter cartridge. When the gate mechanism closes the notch on the upper partition, the notch on the lower partition opens; when the gate mechanism closes the notch on the lower partition, the notch on the upper partition opens. The gate mechanism includes a shaft, an upper gate, a lower gate, and a transmission rack. The upper and lower ends of the shaft slide and seal through the top and bottom of the filter cartridge, respectively. The upper gate is located in the water inlet chamber and is fixedly connected to the shaft. The lower gate is located in the sewage discharge chamber and is fixedly connected to the shaft. The transmission rack is located at one end of the shaft and is used to cooperate with the drive mechanism. The gate mechanism further includes: an upper limit switch, a lower limit switch, an upper limit indicator plate, and a lower limit indicator plate. The shaft can drive the upper gate, lower gate, upper limit indicator plate, and lower limit indicator plate to move synchronously upward or downward. The upper limit switch is located on the upper outer side of the first filter cartridge, and the upper limit indicator plate is located on the top outer side of the first filter cartridge to trigger the upper limit switch. The lower limit switch is located on the bottom outer side of the first filter cartridge, and the lower limit indicator plate is located on the bottom outer side of the first filter cartridge to trigger the lower limit switch.

2. The automatic sewage discharge filter device according to claim 1, characterized in that: The upper and lower gate plates have the same structure, both consisting of gate plates arranged symmetrically on an axis. Each gate plate includes a gate seat, a sealing plate, a pressure plate, and a locking nut. The shaft has an inwardly recessed stepped threaded section. The gate seat is disposed through the stepped threaded section, and the sealing plate is disposed through the stepped threaded section and placed on the gate seat. The sealing plate has a circumferential boss for sealing the notch provided on the upper or lower partition plate. The circumferential boss forms a cavity inside the sealing plate. The pressure plate is disposed through the stepped threaded section and placed inside the cavity. The locking nut is screwed onto the shaft to lock the pressure plate, sealing plate, and gate seat.

3. The automatic sewage discharge filter device according to claim 1, characterized in that: The gate also includes pressure plate bolts, which pass through the pressure plate, sealing plate and gate seat in sequence.

4. The automatic sewage discharge filter device according to claim 1, characterized in that: The two ends of the water inlet pipe are respectively connected to the water inlet chambers of the first filter cartridge and the second filter cartridge.

5. An automatic sewage discharge filter device according to claim 1, characterized in that: The two ends of the water outlet pipe are respectively connected to the filtration chambers of the first filter cartridge and the second filter cartridge.

6. An automatic sewage discharge filter device according to claim 1, characterized in that: The two ends of the drain pipe are respectively connected to the drain chambers of the first filter cartridge and the second filter cartridge.

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