A constant water level regulating system for v-type filter tank

Abstract

The application discloses a constant water level adjusting system of a V-shaped filter tank, and relates to the technical field of filter tank water level control.The constant water level adjusting system comprises a filter tank, a water outlet tank, a constant water level regulator and an air pipe.A base, a support and a siphon pipe are arranged in the water outlet tank.The upper end of the siphon pipe penetrates through the upper end of the water outlet tank and is connected with the water outlet of the filter tank.Three limiting steel plates are annularly welded on the upper end of the siphon pipe.A siphon cover is arranged outside the upper end of the siphon pipe.The top end of the siphon cover is connected with the other end of the air pipe through a first threaded joint pipe.The constant water level adjusting system can isolate or dredge the air in the air pipe according to the water level of the filter tank, thereby controlling the siphon effect in the siphon cover and the water level of the filter tank in a small range, so that a relatively constant water level is formed in the filter tank.The water outlet flow of the filter tank can be increased or decreased by forming and destroying the siphon effect, and the control is purely mechanical and hydraulic, without the need of electrical elements, and the reliability is high.

Description

Technical Field

[0001] This invention relates to the field of filter bed water level control technology, specifically a constant water level regulation system for a V-type filter bed. Background Technology

[0002] The currently popular method for controlling the effluent of V-type filters is to use a PLC system to regulate the constant water level in the filter. This involves using an ultrasonic level gauge installed above the water surface in the filter to detect the water level signal and feeding the signal back to the PLC control cabinet to adjust the opening of the valve on the filter's effluent pipe. This increases or decreases the water loss through the valve, thereby increasing or decreasing the effluent flow rate and achieving a basically constant water level in the filter.

[0003] For example, when the ultrasonic level gauge detects a rise in the water level of the filter bed, it feeds the signal back to the PLC controller. The PLC controller then sends a signal to increase the opening of the filter bed outlet valve, which reduces water loss from the valve, increases the outlet flow rate, and causes the water level in the filter bed to drop.

[0004] Conversely, when the ultrasonic level gauge detects a decrease in the water level in the filter bed, it feeds the signal back to the PLC controller. The PLC controller then sends a signal to reduce the opening of the filter bed outlet valve, increasing the valve's water loss, decreasing the outlet flow rate, and causing the filter bed water level to rise. Through this process, the water level in the filter bed is kept relatively constant.

[0005] However, this method uses a lot of electrical components, and in the actual operation experience of water plants, the probability of electrical component failure is relatively high. Once a failure occurs, it will affect production and the subsequent maintenance cost is high. Therefore, this invention provides a V-type filter constant water level regulation system. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a V-type filter bed constant water level regulation system, which solves the problems of high failure rate and low processing efficiency caused by the traditional method of controlling filter bed water level with electrical components.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a V-type filter constant water level regulation system, including a filter and an outlet pool, wherein the top of the outlet pool is lower than the bottom of the filter, and further includes a constant water level regulator installed inside the filter above the water surface, wherein the top of the constant water level regulator is connected to an air vent pipe.

[0008] A base is installed at the bottom inner side of the effluent pool, and a support is provided at the upper end of the base. A siphon pipe is fixedly installed on the support, and one end of the siphon pipe passes through the upper end of the effluent pool and is connected to the outlet of the filter.

[0009] The siphon tube has an L-shaped structure, and a supporting steel plate is installed in the middle of the siphon tube. Three limiting steel plates are welded in a ring at the upper end of the siphon tube. A siphon hood is fitted over the upper end of the siphon tube, and the top of the siphon hood is connected to the other end of the vent pipe through a first threaded interface pipe.

[0010] As a further technical solution of the present invention, the siphon hood is a hollow structure with an open bottom, the bottom end of the supporting steel plate is provided with an outwardly extending convex edge, the siphon hood is sleeved on the upper outside of the siphon tube, and the bottom end of the siphon hood is placed on the convex edge of the supporting steel plate.

[0011] As a further technical solution of the present invention, the constant water level regulator includes a float located inside the filter tank above the water surface. Multiple steel support seats are arranged in an array in the middle of the upper surface of the float. The top of the multiple steel support seats is connected to a flange. A flange pipe is vertically installed in the middle of the upper end of the flange. An air inlet pipe is slidably connected to the inner side of the flange pipe.

[0012] As a further technical solution of the present invention, the surface of the flange tube is also provided with a conical lubricating oil nozzle, one end of which is connected to the inner wall of the flange tube for adding lubricating oil to the inside of the flange tube.

[0013] As a further technical solution of the present invention, the bottom end of the air intake pipe passes through the flange pipe and is connected to a limiting baffle below the flange. The outer diameter of the limiting baffle is larger than the inner diameter of the flange pipe. The upper outer surface of the air intake pipe has an array of multiple air intake holes, and the height of the air intake holes is 2cm.

[0014] As a further technical solution of the present invention, the inner diameter of the flange tube is 50mm, the outer diameter of the air inlet pipe is slightly smaller than the inner diameter of the flange tube, and the air inlet pipe is located inside the flange tube and is slidably connected to it.

[0015] As a further technical solution of the present invention, an adjusting pipe is provided at the top end of the air intake pipe, and a sealing ring is provided between the air intake pipe and the adjusting pipe. The top end of the adjusting pipe is connected to a connecting pipe through a nut locking member, and the top end of the connecting pipe is provided with a second threaded interface pipe.

[0016] As a further technical solution of the present invention, the nut locking component includes a threaded sleeve integrally connected to the bottom of the connecting tube, and a plurality of locking nuts are installed on the outer surface of the threaded sleeve. The threaded sleeve and the locking nuts are threadedly connected. The inner diameter of the threaded sleeve is larger than the outer diameter of the adjusting tube. One end of the locking nut is screwed into the inside of the threaded sleeve and pressed against the top outer surface of the adjusting tube.

[0017] As a further technical solution of the present invention, the outer surfaces of the first threaded interface tube and the second threaded interface tube are both machined with threads, and the two ends of the vent tube are both machined with internal threads. The two ends of the vent tube are respectively connected to the first threaded interface tube and the second threaded interface tube.

[0018] This invention provides a constant water level regulation system for a V-type filter bed. Compared with the prior art, it has the following advantages:

[0019] Beneficial effects:

[0020] 1. A constant water level regulation system for a V-type filter bed, which connects an L-shaped siphon pipe to the outlet of the filter bed and uses a siphon hood and a vent pipe in conjunction with a constant water level regulator to work. The constant water level regulator can isolate or ventilate the vent pipe according to the rise and fall of the filter bed water level, thereby controlling the siphon effect in the siphon hood and controlling the water level of the filter bed to change within a small range, thus forming a relatively constant water level in the filter bed.

[0021] 2. A constant water level regulation system for a V-type filter bed, which increases or decreases the effluent flow rate of the filter bed by forming and breaking the siphon. It is purely mechanical and hydraulically controlled, without the need for electrical components, and has high reliability. Compared with traditional electrical component control, which has a high failure rate and high maintenance cost, this design is more convenient and reduces the later maintenance cost. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a V-type filter bed constant water level regulation system;

[0023] Figure 2 A schematic diagram of the siphon pipe and siphon hood in a constant water level regulation system for a V-type filter bed;

[0024] Figure 3 A schematic diagram of the structure of a constant water level regulator in a V-type filter bed constant water level regulation system;

[0025] Figure 4 This is a partial disassembly diagram of the constant water level regulator in a V-type filter constant water level regulation system.

[0026] In the diagram: 1. Filter tank; 2. Constant water level regulator; 3. Vent pipe; 4. Siphon hood; 41. First threaded interface pipe; 5. Effluent tank; 51. Base; 52. Support; 53. Supporting steel plate; 54. Limiting steel plate; 6. Siphon pipe;

[0027] 21. Float; 22. Steel support base; 23. Flange; 24. Flange pipe; 25. Lubricating oil nozzle; 26. Air inlet pipe; 27. Limiting baffle; 28. Air inlet hole; 29. ​​Sealing ring; 210. Adjusting pipe; 211. Threaded sleeve; 212. Locking nut; 213. Connecting pipe; 214. Second threaded interface pipe. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-4 This invention provides a technical solution for a constant water level regulation system for a V-type filter: A constant water level regulation system for a V-type filter includes a filter 1 and an outlet pool 5. The top of the outlet pool 5 is lower than the bottom of the filter 1. A base 51 is installed on the bottom inner side of the outlet pool 5. The base 51 is formed by concrete pouring and has pre-embedded steel bars at the bottom that are connected to the bottom of the outlet pool 5. A support 52 is provided at the upper end of the base 51. The support 52 is made of channel steel and a siphon pipe 6 is welded on the support 52. One end of the siphon pipe 6 passes through the upper end of the outlet pool 5 and is connected to the outlet of the filter 1. The siphon pipe 6 has an L-shaped structure, with one end connected to the outlet of the filter 1 and the other end bent vertically upward.

[0030] like Figure 1 and 2 As shown, a supporting steel plate 53 is installed in the middle of the siphon pipe 6, and three limiting steel plates 54 are welded in a ring at the upper end of the siphon pipe 6. A siphon hood 4 is fitted over the upper end of the siphon pipe 6. The top of the siphon hood 4 is connected to the other end of the vent pipe 3 through a first threaded interface pipe 41. The siphon hood 4 is hollow inside and open at the bottom. The bottom end of the supporting steel plate 53 is provided with an outwardly extending convex edge. The siphon hood 4 is fitted over the upper end of the siphon pipe 6, and the bottom end of the siphon hood 4 is placed on the convex edge of the supporting steel plate 53. It should be noted that the siphon hood 4 is movable outside the siphon pipe 6, so that when the siphon is in operation, the water in the filter tank 1 can be discharged through the siphon pipe 6 and overflow from the inside of the siphon hood 4 into the effluent tank 5. Figure 2 As shown.

[0031] like Figure 1 , 3As shown in Figure 4, the constant water level regulation system of the V-type filter also includes a constant water level regulator 2 installed inside the filter 1 above the water surface. The top of the constant water level regulator 2 is connected to an air vent pipe 3. The constant water level regulator 2 includes a float 21 located inside the filter 1 above the water surface. The float 21 is a cylindrical steel component. Multiple steel support seats 22 are arrayed in the middle of the upper surface of the float 21. The tops of the multiple steel support seats 22 are connected to a flange 23. A flange pipe 24 is vertically installed at the middle of the upper end of the flange 23. An air inlet pipe 26 is slidably connected to the inner side of the flange pipe 24. The bottom end of the air inlet pipe 26 passes through the flange pipe 24 and is connected to a limit baffle 27 below the flange 23. The limit baffle 27 can prevent floating. The cylinder 21 detaches from the air inlet pipe 26. The outer diameter of the limiting baffle 27 is larger than the inner diameter of the flange pipe 24. The upper outer surface of the air inlet pipe 26 has multiple air inlet holes 28 arranged in an array. The height of the air inlet holes 28 is 2cm. The air inlet pipe 26 is made of, but is not limited to, 204 stainless steel. The inner diameter of the flange pipe 24 is 50mm. The outer diameter of the air inlet pipe 26 is slightly smaller than the inner diameter of the flange pipe 24. The air inlet pipe 26 is located inside the flange pipe 24 and is slidably connected to it. The purpose is to facilitate the movement of the flange pipe 24 on the air inlet pipe 26 when the float 21 rises and falls with the water surface of the filter tank 1, so as to close or open the air inlet holes 28, so as to facilitate the gas to enter the ventilation pipe 3 or to prevent the gas from entering the ventilation pipe 3, thereby realizing or destroying the siphon of the siphon hood 4.

[0032] The surface of the flange pipe 24 is also provided with a conical lubricating oil nozzle 25. One end of the lubricating oil nozzle 25 is connected to the inner wall of the flange pipe 24 and is used to add lubricating oil to the inside of the flange pipe 24, so that the sliding between the air inlet pipe 26 and the flange pipe 24 is smoother.

[0033] like Figure 4As shown, an adjusting pipe 210 is provided at the top of the intake pipe 26, and a sealing ring 29 is provided between the intake pipe 26 and the adjusting pipe 210. The top of the adjusting pipe 210 is connected to a connecting pipe 213 via a nut locking member. The top of the connecting pipe 213 is provided with a second threaded interface pipe 214. The nut locking member includes a threaded sleeve 211 integrally connected to the bottom of the connecting pipe 213, and multiple locking nuts 212 are installed on the outer surface of the threaded sleeve 211. The threaded sleeve 211 and the locking nuts 212 are threadedly connected. The inner diameter of the threaded sleeve 211 is larger than the outer diameter of the adjusting pipe 210. The locking nuts 212... One end of the tube is screwed into the inside of the threaded sleeve 211 and pressed against the outer surface of the top of the regulating tube 210. The regulating tube 210 is made of 304 stainless steel with an inner diameter of 50mm, which facilitates the adjustment of the height of the constant water level regulator 2 according to the needs of the filter tank 1. That is, the length of the regulating tube 210 is adjusted according to the length of the regulating tube 210 into the threaded sleeve 211. After the regulating tube 210 is inserted into the threaded sleeve 211, the locking nut 212 is turned to screw it into the inside of the threaded sleeve 211 and presses against the outer wall of the regulating tube 210, thus realizing the connection and fixation between the regulating tube 210 and the connecting tube 213.

[0034] The outer surfaces of the first threaded interface pipe 41 and the second threaded interface pipe 214 are both threaded. Both ends of the vent pipe 3 are both threaded. The two ends of the vent pipe 3 are connected to the first threaded interface pipe 41 and the second threaded interface pipe 214 respectively, connecting the vent pipe 3 to the connecting pipe 213 and the siphon shroud 4. This allows the gas to enter the regulating pipe 210 through the inlet pipe 26 when the gas enters the inlet hole 28, then enter the vent pipe 3 through the connecting pipe 213, and finally enter the siphon shroud 4, thus disrupting the siphon effect of the siphon shroud 4. When the inlet hole 28 is closed, no gas enters the siphon shroud 4, thus achieving the siphon effect of the siphon pipe 6.

[0035] The working principle of this invention: The constant water level regulator 2 is fixed inside the filter tank 1, and the float 21 is located above the water surface inside the filter tank 1. When the water level inside the filter tank 1 rises, the float 21 will rise due to the buoyancy of the water, which will drive the flange pipe 24 to slide upward along the outside of the air inlet pipe 26. The rise of the flange pipe 24 will seal the air inlet hole 28, preventing air from entering the air inlet pipe 26, that is, preventing air from entering the vent pipe 3, thereby forming a siphon inside the siphon hood 4. Under the action of the siphon, the water flow rate at the outlet of the filter tank 1 becomes faster. The water flow rate at the outlet of the filter tank 1 is greater than the water flow rate at the inlet, thereby causing the water level inside the filter tank 1 to drop.

[0036] When the water level in filter 1 drops, the float 21 will drop with the water level, which will cause the flange pipe 24 to slide down along the air inlet pipe 26, exposing the air inlet 28 and allowing air to enter the air inlet pipe 26. Even if the air enters the vent pipe 3, it will disrupt the siphon of the siphon hood 4, and the water outflow from the siphon pipe 6 will change from siphon to gravity flow, which will slow down the flow rate and make it less than the inflow flow rate of filter 1, so the water level inside filter 1 will rise.

[0037] This design uses the siphon principle in conjunction with the application of the constant water level regulator 2. By alternating between the two states, the water level of the filter tank 1 can be varied within a small range, thereby creating a relatively constant water level in the filter tank 1.

[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 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A constant water level regulating system for a v-type filter tank, comprising a filter tank (1) and a water outlet tank (5), the top end of the water outlet tank (5) being lower than the lower end of the filter tank (1), characterized in that, It also includes a constant water level regulator (2) installed inside the filter (1) above the water surface, with an air pipe (3) connected to the top of the constant water level regulator (2). A base (51) is installed on the bottom inner side of the water outlet pool (5). A support (52) is provided on the upper end of the base (51). A siphon pipe (6) is fixedly installed on the support (52). One end of the siphon pipe (6) passes through the upper end of the water outlet pool (5) and is connected to the outlet of the filter pool (1). The siphon tube (6) has an L-shaped structure, and a supporting steel plate (53) is installed in the middle of the siphon tube (6). Three limiting steel plates (54) are welded in a ring at the upper end of the siphon tube (6). A siphon cover (4) is fitted on the upper end of the siphon tube (6). The top end of the siphon cover (4) is connected to the other end of the ventilation tube (3) through the first threaded interface tube (41). The constant water level regulator (2) includes a float (21) located inside the filter tank (1) above the water surface. Multiple steel support seats (22) are arranged in an array in the middle of the upper surface of the float (21). The top of the multiple steel support seats (22) is connected to a flange (23). A flange pipe (24) is vertically installed in the middle of the upper end of the flange (23). An air inlet pipe (26) is slidably connected to the inner side of the flange pipe (24). The flange tube (24) is also provided with a conical lubricating oil nozzle (25), one end of which is connected to the inner wall of the flange tube (24) for adding lubricating oil into the flange tube (24); The bottom end of the air inlet pipe (26) passes through the flange pipe (24) and is located below the flange (23) and connected to a limiting baffle (27). The outer diameter of the limiting baffle (27) is larger than the inner diameter of the flange pipe (24). The upper outer surface of the air inlet pipe (26) has multiple air inlet holes (28) arranged in an array. The height of the air inlet holes (28) is 2cm. The top end of the air intake pipe (26) is provided with an adjustment pipe (210), and a sealing ring (29) is provided between the air intake pipe (26) and the adjustment pipe (210). The top end of the adjustment pipe (210) is connected to a connecting pipe (213) by a nut locking member. The top end of the connecting pipe (213) is provided with a second threaded interface pipe (214). The nut locking component includes a threaded sleeve (211) integrally connected to the bottom of the connecting tube (213), and a plurality of locking nuts (212) are installed on the outer surface of the threaded sleeve (211). The threaded sleeve (211) and the locking nuts (212) are threadedly connected. The inner diameter of the threaded sleeve (211) is larger than the outer diameter of the adjusting tube (210). One end of the locking nut (212) is screwed into the inside of the threaded sleeve (211) and pressed against the top outer surface of the adjusting tube (210). The outer surfaces of the first threaded interface tube (41) and the second threaded interface tube (214) are both threaded, and the two ends of the vent tube (3) are both threaded. The two ends of the vent tube (3) are connected to the first threaded interface tube (41) and the second threaded interface tube (214) respectively.

2. The constant water level regulation system for a V-type filter bed according to claim 1, characterized in that, The siphon hood (4) is hollow inside and open at the bottom. The bottom end of the supporting steel plate (53) is provided with an outwardly extending convex edge. The siphon hood (4) is sleeved on the upper outside of the siphon tube (6), and the bottom end of the siphon hood (4) is placed on the convex edge of the supporting steel plate (53).

3. The constant water level regulation system for a V-type filter bed according to claim 1, characterized in that, The inner diameter of the flange tube (24) is 50 mm, and the outer diameter of the air inlet pipe (26) is slightly smaller than the inner diameter of the flange tube (24). The air inlet pipe (26) is located inside the flange tube (24) and is slidably connected to it.

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