Flap valve filter system and control method

Abstract

The present application relates to a flap valve filter system, comprising a filter, a wastewater tank, a filter material layer, a backwash mechanism, a cleaning and flushing mechanism, and a flap valve, wherein the filter is provided with a connected inner cavity and an opening, the wastewater tank is connected to the filter, the filter material layer and the backwash mechanism are arranged in sequence in the inner cavity through the wastewater tank, the filter is provided with a drainage hole connected to the inner cavity, the wastewater tank is connected to the inner cavity through the drainage hole, the flap valve is arranged in the drainage hole, the cleaning and flushing mechanism is arranged on the filter, the backwash mechanism is used to flush impurities in the filter material layer to one side of the filter material layer, and the cleaning and flushing mechanism is used to prevent the impurities from settling on one side of the filter material layer. The above scheme can solve the problem in the related art that after backwashing the filter material layer of the filter, some impurities will still be deposited on the filter material layer, thereby resulting in poor filtering effect of the filter material layer.

Description

Technical Field

[0001] The invention relates to the technical field of flap valve filter tanks, in particular to a flap valve filter tank system. Background Art

[0002] The flap valve filter is a control unit in the water purification system. Its water distribution system is characterized by low resistance. This system, consisting of horizontal, vertical, and vertical air distribution pipes, forms a main air and water distribution channel and a double-layer air and water distribution layer within the multiple horizontal water distribution pipes. Because the water distribution pipes within the filter are independent and separate, this structural feature theoretically ensures good uniformity in the water and air distribution of the flap valve filter. Filter filtration is a crucial component of the water purification process. During the filtration process, impurities filtered from the water will continuously accumulate in the filter media layer. Excessive accumulation can result in substandard effluent quality.

[0003] To address these issues, a related invention, patented in China with patent number 201720510146.X, provides a PAC-based flap valve filter automatic control system. The system includes a filter, a PAC control cabinet, an inlet pipe above the filter, an outlet for filtered liquid below the filter, a flap valve on the sidewall for backwashing, and air and water distribution pipes at the bottom of the filter. The inlet pipe is connected to the water pump station via an inlet valve and an inlet turbidity meter. The outlet is connected to the outlet pipe via an outlet turbidity meter and an outlet valve. The inlet of the air distribution pipe is connected to a backup air pump and a backwash air pump via a backwash valve. The inlet of the water distribution pipe is connected to a backup water pump and a backwash water pump via a backwash valve. The filter is also equipped with a head loss meter and an ultrasonic level meter. This system ensures the quality of the outflowing water while enabling timely backwashing of the filter.

[0004] However, when the above system backwashes the filter media layer of the filter tank through the air distribution pipe and the water distribution pipe, the flushing process is divided into two stages: a combination of air flushing and water flushing, and water flushing alone. No water is discharged during either water flushing or air flushing. After a backwashing stage is completed, the water is drained after standing for tens of seconds, but some impurities will still be deposited on the filter media layer, resulting in poor filtration effect of the filter media layer. Summary of the Invention

[0005] Based on this, a flap valve filter system is provided to solve the problem in related technologies that after backwashing the filter layer of the filter, some impurities will still be deposited on the filter layer, resulting in poor filtering effect of the filter layer.

[0006] A flap valve filter system includes a filter, a wastewater tank, a filter material layer, a backwash mechanism, a cleaning and flushing mechanism and a flap valve, wherein the filter is provided with a connected inner cavity and an opening, the wastewater tank is connected to the filter, the filter material layer and the backwash mechanism are stacked in sequence through the inner cavity, the filter is provided with a drainage hole connected to the inner cavity, the wastewater tank is connected to the inner cavity through the drainage hole, the flap valve is arranged in the drainage hole, the cleaning and flushing mechanism is arranged on the filter, the backwash mechanism is used to flush impurities in the filter material layer to one side of the filter material layer, and the cleaning and flushing mechanism is used to prevent the impurities from settling to one side of the filter material layer.

[0007] Preferably, in the above-mentioned flap valve filter system, the cleaning and flushing mechanism includes a base, an air source component, a first air pump, a first control valve and an anti-sedimentation flushing pipeline, the base and the air source component are both arranged on the filter, the anti-sedimentation flushing pipeline includes a flushing section, a first section and a connecting section, one end of the first section is connected to and communicated with the flushing section, one end of the connecting section is connected to the flushing section, the other end of the connecting section is arranged on the base, the air source component is communicated with one end of the first air pump, the other end of the first air pump is connected to one end of the first control valve, and the other end of the first control valve is connected to and communicated with the other end of the first section.

[0008] Preferably, in the above-mentioned flap valve filter system, the cleaning and flushing mechanism also includes a water source component, a second control valve and a first water pump, the anti-sedimentation flushing pipeline also includes a second section, the water source component is arranged on the filter, one end of the second section is connected to and communicated with the flushing section, the water source component is communicated with one end of the first water pump, the other end of the first water pump is connected to one end of the second control valve, and the other end of the second control valve is connected to and communicated with the other end of the second section.

[0009] Preferably, in the above-mentioned flap valve filter system, the base includes a crossbeam, a first driving member, a first bracket and a second bracket, the first bracket and the second bracket are arranged on opposite sides of the backwash flap valve filter, one end of the crossbeam is movably connected to the first bracket, and the other end of the crossbeam is movably connected to the second bracket, the first driving member is arranged on the crossbeam, and the other end of the connecting section is arranged on the crossbeam, the first driving member can drive the crossbeam to move, the connecting section can move with the crossbeam, and the flushing section can move with the connecting section.

[0010] Preferably, in the above-mentioned flap valve filter system, the base includes a crossbeam, a first drive member, a second drive member, a first bracket and a second bracket, the first bracket and the second bracket are arranged on opposite sides of the backwash flap valve filter, one end of the crossbeam is movably connected to the first bracket, and the other end of the crossbeam is movably connected to the second bracket, the first drive member and the second drive member are both arranged on the crossbeam, the first drive member can drive the crossbeam to move in a first direction, the connecting section can move along the crossbeam along the first direction, the flushing section can move along the connecting section along the first direction, the second drive member can drive the connecting section to move in a second direction, and the flushing section can move along the connecting section along the second direction, wherein the first direction and the second direction intersect.

[0011] Preferably, in the above-mentioned flap valve filter system, a first guide rail and a rack are provided on the first bracket, a second guide rail is provided on the second bracket, the first driving member includes a connected driving motor and a driving gear, the driving motor is provided at one end of the beam, the driving gear is engaged with the rack, a first slider is provided at one end of the beam, the first slider slides with the first guide rail, a second slider is provided at the other end of the beam, the second slider slides with the second guide rail, and the second driving member is a driving cylinder.

[0012] Based on the above flap valve filter system, the present application further discloses a control method applicable to the above flap valve filter system, the control method comprising:

[0013] Step 101: Obtain the status of the filter;

[0014] Step 102: When the filter tank is in the first state, the flap valve and the drain hole are blocked, the filter tank and the wastewater tank are blocked, and the backwash mechanism is activated to flush impurities in the filter material layer to one side of the filter material layer;

[0015] Step 103: When the filter tank is in the second state, the flap valve and the drain hole are in an unobstructed state, the filter tank is connected to the wastewater tank, the cleaning and flushing mechanism is started, and the cleaning and flushing mechanism flushes the impurities to prevent them from settling to one side of the filter material layer. The impurities and the water in the filter tank flow into the wastewater tank through the drain hole.

[0016] Preferably, the cleaning and flushing mechanism flushes the impurities to prevent them from settling on one side of the filter material layer, and further comprises:

[0017] Step 201: The first control valve controls the first air pump to be unobstructed between the first section, and the first air pump drives the flushing gas in the air source assembly to move along the first section to the flushing section for spraying;

[0018] Step 202: The second control valve controls the flow between the first water pump and the second section, and the first water pump drives the flushing water flow in the water source assembly to move along the second section to the flushing section and spray out.

[0019] Preferably, the above control method further includes:

[0020] Step 301: When the filter tank is in the second state, the first driving member drives the beam to move along the first direction, the connecting section moves along with the beam along the first direction, the flushing section moves along with the connecting section along the first direction, the second driving member drives the connecting section to move along the second direction, and the flushing section can move along with the connecting section along the second direction.

[0021] Based on the above-mentioned flap valve filter system, the present application further discloses a control device, which includes:

[0022] An acquisition module, configured to acquire the status of the filter;

[0023] a first control module, which controls the flap valve and the drain hole to be in a blocked state when the filter tank is in a first state, thereby blocking the filter tank and the wastewater tank;

[0024] a second control module, which controls the flap valve and the drain hole to be in an unobstructed state when the filter tank is in the second state, so that the filter tank is in communication with the wastewater tank;

[0025] a third control module, which controls the backwashing mechanism to start when the filter tank is in the first state, so that the backwashing mechanism flushes impurities in the filter material layer to one side of the filter material layer;

[0026] The fourth control module controls the cleaning and flushing mechanism to start when the filter tank is in the second state. The cleaning and flushing mechanism flushes the impurities to prevent them from settling to one side of the filter material layer. The impurities and the water in the filter tank flow into the wastewater tank through the drainage hole.

[0027] The technical solution adopted in this application can achieve the following beneficial effects:

[0028] The flap valve filter system disclosed in the present application includes a filter, a wastewater tank, a filter material layer, a backwash mechanism, a cleaning and flushing mechanism and a flap valve. The filter is provided with a connected inner cavity and an opening. The wastewater tank is connected to the filter. The filter material layer and the backwash mechanism are stacked in sequence in the inner cavity. The filter is provided with a drainage hole connected to the inner cavity. The wastewater tank is connected to the inner cavity through the drainage hole. The flap valve is arranged in the drainage hole. The cleaning and flushing mechanism is arranged on the filter. The backwash mechanism is used to flush impurities in the filter material layer to one side of the filter material layer. The cleaning and flushing mechanism is used to prevent impurities from settling to one side of the filter material layer. The above structure uses the backwash mechanism, the cleaning and flushing mechanism and the flap valve to achieve that when the flap valve filter system is backwashing, the backwash mechanism is opened, the flap valve blocks the drainage hole, so that the filter is not connected to the wastewater tank, and the backwash mechanism flushes the impurities in the filter layer to one side of the filter layer; when the flap valve filter system is cleaning and flushing, the cleaning and flushing mechanism is opened, the flap valve opens the drainage hole, so that the filter is connected to the wastewater tank, and the cleaning and flushing mechanism flushes the impurities deposited on one side of the filter layer, so that they are mixed with the wastewater, so that the impurities can flow with the wastewater through the drain port to the wastewater tank, thereby improving the filtering effect of the filter layer in the flap valve filter system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of the flap valve filter system disclosed in the embodiment of the present application;

[0030] Figure 2 A top view of the flap valve filter system disclosed in an embodiment of the present application;

[0031] Figure 3 for Figure 2 sectional view of .

[0032] Among them: base 110, beam 111, first drive member 112, first bracket 113, second bracket 114, second drive member 115, air source assembly 120, anti-sedimentation flushing pipeline 130, flushing section 131, first section 132, connecting section 133, second section 134, water source assembly 140, filter tank 210, drainage hole 211, wastewater tank 220, filter material layer 230, backwash mechanism 300, flap valve 400. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0034] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an element centered thereon. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "bottom end," "top end," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Please refer to Figures 1 to 3 The present application discloses a flap valve filter system, which includes a filter 210, a wastewater tank 220, a filter material layer 230, a backwashing mechanism 300, a cleaning and flushing mechanism and a flap valve 400.

[0037] The filter tank 210 is a filtering functional component of the flap valve filter system, and the wastewater tank 220 is a wastewater collection functional component of the flap valve filter system. The backwash mechanism 300 can flush out impurities in the filter layer 230 of the filter tank 210, and the cleaning and flushing mechanism can prevent impurities from settling on one side of the filter layer 230.

[0038] Specifically, the filter tank 210 is provided with a connected inner cavity and an opening, the wastewater tank 220 is connected to the filter tank 210, the filter material layer 230 and the backwashing mechanism 300 are stacked in sequence in the inner cavity, the filter tank 210 is provided with a drainage hole 211 connected to the inner cavity, the wastewater tank 220 is connected to the inner cavity through the drainage hole 211, the flap valve 400 is provided in the drainage hole 211, the cleaning and flushing mechanism is provided on the filter tank 210, the backwashing mechanism 300 is used to flush impurities in the filter material layer 230 to one side of the filter material layer 230, and the cleaning and flushing mechanism is used to prevent impurities from settling to one side of the filter material layer 230.

[0039] During the use of the flap valve filter system, when the flap valve filter system is backwashing, the backwash mechanism 300 is opened and the filter material layer 230 stacked thereon is flushed. At the same time, the flap valve 400 blocks the drain hole 211, so that the filter 210 is not connected to the wastewater tank 220, and the backwash mechanism 300 flushes the impurities in the filter material layer 230 to one side of the filter material layer 230; when the flap valve filter system is cleaning and flushing, the cleaning and flushing mechanism is opened and the impurities located on one side of the filter material layer 230 are flushed. At the same time, the flap valve 400 opens the drain hole 211, so that the filter 210 is connected to the wastewater tank 220, and the cleaning and flushing mechanism flushes the impurities so that they are mixed with the wastewater, so that the impurities can flow with the wastewater through the drain port to the wastewater tank 220.

[0040] In the flap valve filter system disclosed in the present application, it includes a filter 210, a wastewater tank 220, a filter material layer 230, a backwashing mechanism 300, a cleaning and flushing mechanism and a flap valve 400. The filter 210 is provided with a connected inner cavity and an opening, the wastewater tank 220 is connected to the filter 210, the filter material layer 230 and the backwashing mechanism 300 are stacked in sequence and arranged in the inner cavity, the filter 210 is provided with a drainage hole 211 connected to the inner cavity, the wastewater tank 220 is connected to the inner cavity through the drainage hole 211, the flap valve 400 is arranged in the drainage hole 211, the cleaning and flushing mechanism is arranged on the filter 210, the backwashing mechanism 300 is used to flush impurities in the filter material layer 230 to one side of the filter material layer 230, and the cleaning and flushing mechanism is used to prevent impurities from settling to one side of the filter material layer 230. The above structure uses the backwash mechanism 300, the cleaning and flushing mechanism and the flap valve 400 to achieve that when the flap valve filter system is backwashing, the backwash mechanism 300 is opened, the flap valve 400 blocks the drain hole 211, so that the filter 210 is not connected to the wastewater tank 220, and the backwash mechanism 300 flushes the impurities in the filter layer 230 to one side of the filter layer 230; when the flap valve filter system is cleaning and flushing, the cleaning and flushing mechanism is opened, the flap valve 400 opens the drain hole 211, so that the filter 210 is connected to the wastewater tank 220, and the cleaning and flushing mechanism flushes the impurities deposited on one side of the filter layer 230, so that they are mixed with the wastewater, so that the impurities can flow with the wastewater through the drain port to the wastewater tank 220, thereby improving the filtration effect of the filter layer 230 in the flap valve filter system.

[0041] In an embodiment of the present application, the cleaning and flushing mechanism may include a base 110, an air source assembly 120, a first air pump, a first control valve and an anti-sedimentation flushing pipeline 130. Specifically, the base 110 and the air source assembly 120 can both be arranged on the filter tank 210. The anti-sedimentation flushing pipeline 130 may include a flushing section 131, a first section 132 and a connecting section 133. One end of the first section 132 can be connected and communicated with the flushing section 131, one end of the connecting section 133 can be connected to the flushing section 131, and the other end of the connecting section 133 can be arranged on the base 110. The air source assembly 120 can be communicated with one end of the first air pump, the other end of the first air pump can be connected to one end of the first control valve, and the other end of the first control valve can be connected and communicated with the other end of the first section 132.

[0042] During the use of the flap valve filter system, when the flap valve filter system is being cleaned and flushed, the flushing section 131 can be adjacent to the filter material layer 230, the first control valve is in a unobstructed state, and the first air pump drives the flushing gas in the air source assembly 120 to move along the first section 132 to the flushing section 131 and spray out. The flushing gas can impact the impurities, and the impurities can be mixed into the wastewater, thereby preventing the impurities from settling on one side of the filter material layer 230.

[0043] The above structure uses the air source component 120, the first air pump, the first control valve and the anti-sedimentation flushing pipeline 130 to stir the wastewater by impact gas, so that impurities are affected by the movement of the wastewater and cannot be precipitated, so that the impurities can flow with the wastewater through the drain outlet to the wastewater tank 220, thereby improving the filtering effect of the filter layer 230 in the flap valve filter system.

[0044] In an embodiment of the present application, the cleaning and flushing mechanism may also include a water source component 140, a second control valve and a first water pump. Specifically, the anti-sedimentation flushing pipeline 130 also includes a second section 134, the water source component 140 is arranged on the filter tank 210, one end of the second section 134 is connected to and communicated with the flushing section 131, the water source component 140 is communicated with one end of the first water pump, the other end of the first water pump is connected to one end of the second control valve, and the other end of the second control valve is connected to and communicated with the other end of the second section 134.

[0045] During the use of the flap valve filter system, when the flap valve filter system is being cleaned and flushed, the flushing section 131 can be adjacent to the filter layer 230, the second control valve is in a unobstructed state, and the first water pump drives the flushing water flow in the water source component 140 to move along the second section 134 to the flushing section 131 and spray out. The flushing gas can impact the impurities, and the impurities can be mixed into the wastewater, thereby preventing the impurities from settling on one side of the filter layer 230.

[0046] The above structure uses the water source component 140, the second control valve and the first water pump to stir the wastewater through the flushing water flow, so that impurities are affected by the movement of the wastewater and cannot be precipitated. At the same time, it can also increase the water content in the wastewater, so that it can carry more impurities, so that the impurities can flow with the wastewater through the drain outlet to the wastewater tank 220, thereby improving the filtration effect of the filter layer 230 in the flap valve filter system.

[0047] In addition, in the above structure, when the flap valve filter system is being cleaned and flushed, the first control valve can be opened alone, or the second control valve can be opened alone, or both the first control valve and the second control valve can be opened to achieve flushing and cleaning. This application does not impose any restrictions on this.

[0048] In an embodiment of the present application, the base 110 may include a beam 111, a first driving member 112, a first bracket 113 and a second bracket 114. Specifically, the first bracket 113 and the second bracket 114 can be arranged on opposite sides of the backwash flap valve 400 filter tank 210, one end of the beam 111 can be movably connected to the first bracket 113, and the other end of the beam 111 can be movably connected to the second bracket 114, the first driving member 112 can be arranged on the beam 111, and the other end of the connecting section 133 can be arranged on the beam 111, the first driving member 112 can drive the beam 111 to move, the connecting section 133 can move with the beam 111, and the flushing section 131 can move with the connecting section 133.

[0049] The above structure drives the crossbeam 111 to move through the first driving member 112 so that the connecting section 133 moves with the crossbeam 111, and the flushing section 131 moves with the connecting section 133, so that the flushing section 131 can flush impurities over a larger area by moving, so that more impurities can be discharged by being mixed into the wastewater, thereby improving the flushing effect of the filter material layer 230.

[0050] The above structure drives the crossbeam 111 to move through the first driving member 112 so that the connecting section 133 moves with the crossbeam 111, and the flushing section 131 moves with the connecting section 133, so that the flushing section 131 can flush impurities over a larger area by moving, so that more impurities can be discharged by being mixed into the wastewater, thereby improving the flushing effect of the filter material layer 230.

[0051] In another optional solution, the base 110 may include a crossbeam 111, a first driving member 112, a second driving member 115, a first bracket 113 and a second bracket 114. Specifically, the first bracket 113 and the second bracket 114 may be arranged on opposite sides of the backwash flap valve 400 filter tank 210, one end of the crossbeam 111 may be movably connected to the first bracket 113, and the other end of the crossbeam 111 may be movably connected to the second bracket 114. The first driving member 112 and the second driving member 115 are both It can be arranged on the beam 111, the first driving member 112 can drive the beam 111 to move along the first direction, the connecting section 133 can move along the first direction with the beam 111, and the flushing section 131 can move along the first direction with the connecting section 133, the second driving member 115 can drive the connecting section 133 to move along the second direction, and the flushing section 131 can move along the second direction with the connecting section 133, wherein the first direction and the second direction intersect, the first direction is the moving direction of the beam 111, and the second direction can be consistent with the direction of gravity.

[0052] The above structure drives the crossbeam 111 to move in the first direction through the first driving member 112, so that the connecting section 133 moves with the crossbeam 111, and the flushing section 131 moves along the first direction with the connecting section 133, so that the flushing section 131 can flush the impurities over a larger area by moving, so that more impurities can be discharged by being mixed into the wastewater. At the same time, the second driving member 115 drives the connecting section 133 to move in the second direction, and the flushing section 131 moves in the second direction, so that the flushing section 131 can flush close to or away from the filter layer 230, so that the impurities can be impacted into the wastewater by a greater impact force, thereby further improving the flushing effect on the filter layer 230.

[0053] In a further technical solution, a first guide rail and a rack may be provided on the first bracket 113. Specifically, a second guide rail may be provided on the second bracket 114. The first driving member 112 may include a connected driving motor and a driving gear. The driving motor may be provided at one end of the beam 111. The driving gear may engage with the rack. A first slider may be provided at one end of the beam 111. The first slider may slide with the first guide rail. A second slider may be provided at the other end of the beam 111. The second slider may slide with the second guide rail. The second driving member 115 may be a driving cylinder.

[0054] Based on the flap valve filter system disclosed in the embodiment of the present application, the embodiment of the present application discloses a control method. The flap valve filter system involved is the flap valve filter system described in the embodiment above. The control method includes:

[0055] Step 101: Obtain the status of the filter 210;

[0056] In this step, the state of the filter tank 210 may include a first state (ie, a backwashing state) and a second state (ie, a wastewater discharge state).

[0057] Step 102: When the filter tank 210 is in the first state (i.e., the backwash state), the flap valve 400 and the drain hole 211 are blocked, the filter tank 210 and the wastewater tank 220 are blocked, and the backwash mechanism 300 is activated to flush impurities in the filter material layer 230 to one side of the filter material layer 230;

[0058] In this step, the backwash mechanism 300 is opened, the flap valve 400 and the drain hole 211 are in a blocked state, so that the filter tank 210 and the wastewater tank 220 are separated, thereby preventing the filter material in the filter layer 230 from being lost, and the backwash mechanism 300 flushes the impurities in the filter layer 230 to one side of the filter layer 230.

[0059] Step 103: When the filter tank 210 is in the second state (i.e., the wastewater discharge state), the flap valve 400 and the drain hole 211 are in an unobstructed state, the filter tank 210 is connected to the wastewater tank 220, and the cleaning and flushing mechanism is started. The cleaning and flushing mechanism flushes impurities to prevent them from settling on one side of the filter material layer 230. The impurities and the water in the filter tank 210 flow into the wastewater tank 220 through the drain hole 211.

[0060] In this step, the cleaning and flushing mechanism is turned on, and the flap valve 400 and the drain hole 211 are in an unobstructed state, so that the filter tank 210 is connected to the wastewater tank 220. The cleaning and flushing mechanism flushes the impurities deposited on one side of the filter material layer 230 and mixes them with the wastewater, so that the impurities can flow with the wastewater through the drain port to the wastewater tank 220, thereby improving the filtration effect of the filter material layer 230 in the flap valve filter system.

[0061] In a further technical solution, after flushing impurities by the cleaning and flushing mechanism to prevent them from settling on one side of the filter material layer 230, the following is further included:

[0062] Step 201: The first control valve controls the flow between the first air pump and the first section 132. The first air pump drives the flushing gas in the air source assembly 120 to move along the first section 132 to the flushing section 131 and then be ejected.

[0063] Step 202 , the second control valve controls the flow between the first water pump and the second section 134 , and the first water pump drives the flushing water in the water source assembly 140 to move along the second section 134 to the flushing section 131 and spray out.

[0064] Of course, the first control valve can also control the smooth flow between the first air pump and the first section 132, while the second control valve controls the smooth flow between the first water pump and the second section 134, so that the first air pump drives the flushing gas in the air source component 120 to move along the first section 132 to the flushing section 131 for spraying, while the first water pump drives the flushing water flow in the water source component 140 to move along the second section 134 to the flushing section 131 for spraying.

[0065] In a further technical solution, the control method disclosed in the embodiment of the present application may further include:

[0066] Step 301. When the filter tank 210 is in the second state (i.e., the wastewater discharge state), the first driving member 112 drives the beam 111 to move along the first direction, the connecting section 133 moves along the first direction with the beam 111, and the flushing section 131 moves along the first direction with the connecting section 133. The second driving member 115 drives the connecting section 133 to move along the second direction, and the flushing section 131 can move along the second direction with the connecting section 133.

[0067] Based on the flap valve filter system disclosed in the embodiment of the present application, the embodiment of the present application discloses a control device. The flap valve filter system involved is the flap valve filter system described in the embodiment above. The disclosed control device includes:

[0068] An acquisition module, which is used to acquire the status of the filter 210;

[0069] The first control module controls the flap valve 400 and the drain hole 211 to be in a blocked state when the filter tank 210 is in the first state, thereby blocking the space between the filter tank 210 and the wastewater tank 220;

[0070] The second control module controls the flap valve 400 and the drain hole 211 to be in an unobstructed state when the filter tank 210 is in the second state, so that the filter tank 210 is connected to the wastewater tank 220;

[0071] a third control module, configured to control the backwash mechanism 300 to start when the filter tank 210 is in the first state, so that the backwash mechanism 300 flushes impurities in the filter material layer 230 to one side of the filter material layer 230;

[0072] The fourth control module controls the cleaning and flushing mechanism to start when the filter tank 210 is in the second state. The cleaning and flushing mechanism flushes impurities to prevent them from settling on one side of the filter material layer 230. The impurities and the water in the filter tank 210 flow into the wastewater tank 220 through the drainage hole 211.

[0073] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A flap valve filter system, characterized in that: The invention comprises a filter tank, a wastewater tank, a filter material layer, a backwashing mechanism, a cleaning and flushing mechanism and a flap valve, wherein the filter tank is provided with a connected inner cavity and an opening, the wastewater tank is connected to the filter tank, the filter material layer and the backwashing mechanism pass through the opening and are sequentially stacked in the inner cavity, the filter tank is provided with a drainage hole connected to the inner cavity, the wastewater tank is connected to the inner cavity through the drainage hole, the flap valve is arranged in the drainage hole, the cleaning and flushing mechanism is arranged on the filter tank, the backwashing mechanism is used to flush impurities in the filter material layer to one side of the filter material layer, and the cleaning and flushing mechanism is used to prevent the impurities from settling to one side of the filter material layer; the cleaning and flushing mechanism comprises a base, an air source component, a first air pump, a first control valve and an anti-sedimentation flushing pipeline, the base and the air source component are both arranged on the filter tank, the anti-sedimentation flushing pipeline The road includes a flushing section, a first section and a connecting section, one end of the first section is connected to and communicated with the flushing section, one end of the connecting section is connected to the flushing section, and the other end of the connecting section is arranged on the base, the air source component is communicated with one end of the first air pump, the other end of the first air pump is connected to one end of the first control valve, and the other end of the first control valve is connected to and communicated with the other end of the first section; the cleaning and flushing mechanism also includes a water source component, a second control valve and a first water pump, and the anti-sedimentation flushing pipeline also includes a second section, the water source component is arranged on the filter tank, one end of the second section is connected to and communicated with the flushing section, the water source component is communicated with one end of the first water pump, the other end of the first water pump is connected to one end of the second control valve, and the other end of the second control valve is connected to and communicated with the other end of the second section.

2. The flap valve filter system according to claim 1, characterized in that: The base includes a crossbeam, a first driving member, a first bracket and a second bracket. The first bracket and the second bracket are arranged on opposite sides of the filter tank. One end of the crossbeam is movably connected to the first bracket, and the other end of the crossbeam is movably connected to the second bracket. The first driving member is arranged on the crossbeam, and the other end of the connecting section is arranged on the crossbeam. The first driving member can drive the crossbeam to move, the connecting section can move with the crossbeam, and the flushing section can move with the connecting section.

3. The flap valve filter system according to claim 1, characterized in that: The base includes a crossbeam, a first driving member, a second driving member, a first bracket and a second bracket. The first bracket and the second bracket are arranged on opposite sides of the backwash flap valve filter. One end of the crossbeam is movably connected to the first bracket, and the other end of the crossbeam is movably connected to the second bracket. The first driving member and the second driving member are both arranged on the crossbeam. The first driving member can drive the crossbeam to move in a first direction, the connecting section can move along the crossbeam in the first direction, the flushing section can move along the connecting section in the first direction, the second driving member can drive the connecting section to move in a second direction, and the flushing section can move along the connecting section in the second direction, wherein the first direction and the second direction intersect.

4. The flap valve filter system according to claim 3, characterized in that: A first guide rail and a rack are provided on the first bracket, a second guide rail is provided on the second bracket, the first driving member includes a connected driving motor and a driving gear, the driving motor is provided at one end of the beam, the driving gear is engaged with the rack, a first slider is provided at one end of the beam, the first slider slides with the first guide rail, a second slider is provided at the other end of the beam, the second slider slides with the second guide rail, and the second driving member is a driving cylinder.

5. A control method for a flap valve filter system, applicable to the flap valve filter system according to claim 3 or 4, characterized in that: The control method includes: Obtaining the status of the filter; When the filter tank is in the first state, the flap valve and the drain hole are in a blocked state, the filter tank and the wastewater tank are blocked, and the backwash mechanism is activated to flush impurities in the filter material layer to one side of the filter material layer; When the filter tank is in the second state, the flap valve and the drain hole are in an unobstructed state, the filter tank is connected to the wastewater tank, the cleaning and flushing mechanism is started, and the cleaning and flushing mechanism flushes the impurities to prevent them from settling to one side of the filter material layer. The impurities and the water in the filter tank flow into the wastewater tank through the drain hole.

6. The control method according to claim 5, characterized in that: The cleaning and flushing mechanism flushes the impurities to prevent them from settling on one side of the filter material layer, and further comprises: The first control valve controls the flow between the first air pump and the first section, and the first air pump drives the flushing gas in the air source assembly to move along the first section to the flushing section for spraying; The second control valve controls the flow between the first water pump and the second section, and the first water pump drives the flushing water flow in the water source component to move along the second section to the flushing section for spraying.

7. The control method according to claim 5, characterized in that: Also includes: When the filter tank is in the second state, the first driving member drives the beam to move along the first direction, the connecting section moves along the first direction with the beam, the flushing section moves along the first direction with the connecting section, and the second driving member drives the connecting section to move along the second direction, and the flushing section can move along the second direction with the connecting section.

8. A control device for a flap valve filter system, characterized in that: The flap valve filter system is the flap valve filter system according to any one of claims 2 to 4, and the control device includes: An acquisition module, configured to acquire the status of the filter; a first control module, which controls the flap valve and the drain hole to be in a blocked state when the filter tank is in a first state, thereby blocking the filter tank and the wastewater tank; a second control module, which controls the flap valve and the drain hole to be in an unobstructed state when the filter tank is in the second state, so that the filter tank is in communication with the wastewater tank; a third control module, which controls the backwashing mechanism to start when the filter tank is in the first state, so that the backwashing mechanism flushes impurities in the filter material layer to one side of the filter material layer; The fourth control module controls the cleaning and flushing mechanism to start when the filter tank is in the second state. The cleaning and flushing mechanism flushes the impurities to prevent them from settling to one side of the filter material layer. The impurities and the water in the filter tank flow into the wastewater tank through the drainage hole.

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