A truss hedging gas disturbance device

Abstract

The utility model discloses a truss butt -type gas disturbance device, including length direction along left and right directions and horizontal setting's seat frame, and the seat frame left end and right end top all are equipped with the lifting lug, is equipped with at least one seat plate on the seat frame, is equipped with the rotary table on the seat plate, is equipped with the push flow aerator on the rotary table. The utility model principle science, simple structure, convenient construction, according to the maintenance gate's door groove of inverted siphon outlet to implement installation, adjust the push flow direction of push flow aerator before draining, try to reduce the dead angle area, adopt the physical way to disturb the algae production environment in water, and good water disturbance effect has after testing, can be widely popularized in the whole south -north water diversion middle line main canal.

Description

Technical Field

[0001] This utility model belongs to the field of algae removal technology in water, specifically relating to a truss-type counter-impact gas disturbance device. Background Technology

[0002] The South-to-North Water Diversion Project (Middle Route) is a water diversion project of great strategic value in my country, making a significant contribution to solving the water shortage problem in northern China. The water quality of the Middle Route is good, and it has been delivering water stably for 11 years. However, with the increase in water delivery time, algae growth has appeared in the main canal. The large-scale growth and death of algae will release harmful substances, affecting the ecological balance, thus impacting water quality and posing a potential threat to the safety of water delivery.

[0003] To reduce the amount of algae, it is proposed to use a flow-driven aerator to accelerate water circulation, disrupt the algae growth environment, and thus reduce algae growth and reproduction. Based on on-site investigation and the structural characteristics of the main canal, a new type of truss-type counter-flow gas disturbance device was selected to be installed at the inverted siphon outlet. Utility Model Content

[0004] The purpose of this invention is to provide a truss-type gas disturbance device that is scientifically designed, simple in structure, easy to operate, and effectively reduces algae growth and reproduction.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a truss-type gas disturbance device, including a frame that is horizontally arranged along the left and right directions in the length direction, with lifting lugs at the top of the left and right ends of the frame, at least one seat plate on the frame, a turntable on the seat plate, and a push-flow aerator on the turntable.

[0006] The frame includes two long horizontal bars arranged in the left-right direction. The two long horizontal bars are arranged at intervals. The two long horizontal bars are connected by several short vertical bars. A rectangular frame is fixed at the left and right ends of the two long horizontal bars. The rectangular frame is set vertically. The lifting lug is fixed at the top center of the rectangular frame.

[0007] There are two seat plates, which are horizontally positioned on the left and right sides of the seat frame, respectively.

[0008] Two front side stops are fixedly installed on the front side of the front long crossbar, and two rear side stops are fixedly installed on the rear side of the rear long crossbar. One front side stop and one rear side stop are both adjacent to the rectangular frame at the left end, and the other front side stop and the other rear side stop are both adjacent to the rectangular frame at the right end.

[0009] The turntable includes a chassis and a platform. The bottom surface of the chassis is fixedly mounted on the base plate. A circular hole that is open at both the top and bottom is opened in the center of the chassis. A lower annular groove is provided at the upper end of the circular hole on the top of the chassis. An upper annular groove is provided on the bottom surface of the platform, corresponding to the lower annular groove. A central cylinder extending coaxially into the circular hole is integrally provided on the bottom surface of the platform inside the upper annular groove. A thrust bearing is installed on the outer circle of the central cylinder. The upper and lower parts of the thrust bearing are respectively assembled in the upper and lower annular grooves. Four threaded holes are arranged in a circumferential array around the center line of the thrust bearing on the top surface of the chassis. More than four light holes that are open at both the top and bottom are opened on the platform. All the light holes are arranged in a circumferential array around the center line of the thrust bearing. The distance from the center line of the light hole to the center line of the thrust bearing is equal to the distance from the center line of the threaded hole to the center line of the thrust bearing.

[0010] The bottom of the push-flow aerator is fixedly connected to the top surface of the platform. The four holes on the platform are all bolted and fixedly connected to the four threaded holes on the chassis. The top of the push-flow aerator is connected to an air inlet pipe that extends out of the water surface.

[0011] An annular stepped groove is formed on the bottom surface of the chassis outside the outer circle of the central cylinder, and a retaining ring is placed inside the annular stepped groove on the outer circle of the central cylinder.

[0012] The working principle of the push-flow aerator (existing equipment, commercially available, or custom-made) adopted in this utility model using the above technical solution is as follows: The push-flow aerator draws air into the water through the high-speed rotation of a propeller. Under the impact of the high-speed water flow, the drawn-in air is broken into tiny, high-density mist-like bubbles that diffuse into the middle and lower layers of the water. This greatly increases the mass transfer interface between the air and water, and prolongs the residence time of the bubbles in the water, increasing the oxygenation time and allowing the air to mix thoroughly with the water. Simultaneously, the bursting of the bubbles generates a large number of negative ions, effectively dissolving oxygen and purifying the water. Furthermore, due to the powerful thrust of the propeller, the water flow can deliver oxygen-enriched water to water tens of meters away, forming a dynamic oxygen-enriched water flow surrounding the entire water body. This large volume of saturated oxygen-rich water not only promotes efficient oxygen exchange in the water but also forms a simulated ecological water flow, delivering oxygen-enriched water to every corner of the water body, increasing the oxygen content and inhibiting algae growth. It has the following advantages in reducing algae growth and reproduction in water: 1) Improve fluidity: During aeration, the agitation and convection of the water body reduce dead zones, which can reduce the chance of algae accumulation, prevent the formation of large-scale algal blooms, effectively inhibit the settling of suspended solids (SS), and reduce the accumulation of bottom sediment.

[0013] 2) Increased dissolved oxygen in water: The push-flow aerator mixes air with water, increasing the dissolved oxygen content and providing ample oxygen for aerobic microorganisms, creating an optimal environment for their activity. The increased activity of these microorganisms allows them to decompose organic matter in the water more quickly and efficiently, reducing COD and BOD levels and decreasing the amount of toxic gases such as methane produced during the decomposition of organic matter by anaerobic bacteria. The reduction in organic matter content and the increase in dissolved oxygen effectively inhibit excessive algae growth, reduce water erosion, and significantly eliminate black and odorous water.

[0014] The working principle and corresponding beneficial effects of this utility model are as follows: This utility model is installed at the outlet of the inverted siphon in the main canal of the South-to-North Water Diversion Project. The inverted siphon outlet is typically a four-hole structure, narrower than the main canal, and provides ample space on both sides of the gate chamber, facilitating construction. The gas disturbance method for inhibiting algae growth serves as an emergency measure. It can be installed and removed at the inverted siphon outlet using the maintenance gate slot and a mobile hoist, saving investment. The gas disturbance device of this utility model can be removed after the algae growth period ends.

[0015] The long horizontal bars, short vertical bars, rectangular frames, and side rails of the support frame are all made of 100×50×5mm rectangular stainless steel tubing, material Q235A. Two long horizontal bars and several short vertical bars are welded to form a truss steel structure, providing good resistance to water flow impact. Two rectangular frames are located in the gate slots on the left and right sides of the maintenance gate, providing support against water flow impact. The rectangular frames are welded with lifting lugs, allowing connection of lifting chains to suspend the support frame between the two gate slots. The hoist can adjust the height of the support frame by suspending two chains via a grab beam. Front and rear side rails are installed on the outside of the gate slots on the support frame to reduce excessive lateral swaying and minimize shaking of the propeller aerator during operation. The base plate is the installation location for the turntable and the propeller aerator.

[0016] The turntable is mainly assembled from a chassis and a platform via thrust bearings. The chassis is fixedly (welded) to the base plate of the frame. The upper surface of the chassis has four threaded holes. The platform is mounted on the chassis and rotatably connected to the base plate via thrust bearings. The central cylinder serves to position and install the thrust bearings, and a limiting ring is installed on its lower outer circumference to prevent axial (vertical) movement of the platform. The platform has a ring (several) of smooth holes. Rotating the platform synchronously rotates the propeller aerator fixedly connected to it, adjusting the propulsion direction of the aerator. After adjustment, four of the smooth holes on the platform align with the four threaded holes on the chassis, and bolts are inserted and tightened to secure the platform.

[0017] A locking beam is installed at the top of the gate slot, arranged in the direction of water flow. A lifting ring is welded to the bottom of the locking beam and located inside the upper port of the gate slot. The lifting chain is a ring chain, with the upper and lower ends connected to the locking beam and the lifting lugs on the rectangular frame, respectively. Workers can adjust the length of the lifting chain according to changes in the water immersion depth. First, the entire device is hoisted to the predetermined depth using the grab beam of the hoist. Then, the lifting chain is reliably connected to the locking beam. The hoist can then be released from the lifting chain. Under normal operating conditions, the water immersion depth of the device is maintained by the locking beam connecting the lifting chain.

[0018] In summary, this utility model has a scientific principle, simple structure, and convenient construction. It is installed based on the gate slot of the maintenance gate at the outlet of the inverted siphon. Before water is released, the direction of the pusher aerator is adjusted to minimize dead zones. It uses physical methods to disturb the algae production environment in the water. Tests have shown that it has a good disturbance effect in the water and can be widely promoted throughout the main canal of the South-to-North Water Diversion Project. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the arrangement of this utility model within the four-hole inverted siphon outlet; Figure 2 yes Figure 1 Enlarged view of section A in the middle; Figure 3 yes Figure 1 A three-dimensional structural diagram of the central support frame; Figure 4 yes Figure 1 Internal structure diagram of the transfer station; Figure 5 yes Figure 4 Top view. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0021] like Figures 1-5 As shown, the present invention provides a truss-type gas disturbance device, which includes a frame 1 arranged horizontally along the left and right directions. The top of the left and right ends of the frame 1 are provided with lifting lugs 2. At least one seat plate 3 is provided on the frame 1. A turntable 4 is provided on the seat plate 3. A push-flow aerator 5 is provided on the turntable 4.

[0022] The frame 1 includes two long horizontal bars 6 arranged in the left-right direction. The two long horizontal bars 6 are arranged at intervals. The two long horizontal bars 6 are connected by several short vertical bars 7. A rectangular frame 8 is fixed at the left and right ends of the two long horizontal bars 6. The rectangular frame 8 is set vertically. The lifting lug 2 is fixed at the top center of the rectangular frame 8.

[0023] There are two seat plates 3, which are horizontally arranged on the left and right sides of the seat frame 1, respectively.

[0024] Two front side stops 9 are fixedly provided on the front side of the front long crossbar 6, and two rear side stops 10 are fixedly provided on the rear side of the rear long crossbar 6. One of the front side stops 9 and one of the rear side stops 10 are adjacent to the rectangular frame 8 at the left end, and the other front side stop 9 and the other rear side stop 10 are adjacent to the rectangular frame 8 at the right end.

[0025] The turntable 4 includes a chassis 11 and a platform 12. The bottom surface of the chassis 11 is fixed on the base plate 3. A circular hole with vertical penetration is opened in the center of the chassis 11. A lower annular groove is provided at the upper end of the circular hole on the top of the chassis 11. The bottom surface of the platform 12 has an upper annular groove corresponding to the lower annular groove. A central cylinder 13 extending coaxially into the circular hole is integrally provided on the bottom surface of the platform 12 inside the upper annular groove. A thrust bearing 14 is installed on the outer circle of the central cylinder 13. The upper and lower parts of the thrust bearing 14 are respectively assembled in the upper and lower annular grooves. The top surface of the chassis 11 has four threaded holes 15 arranged in a circumferential array around the center line of the thrust bearing 14. The platform 12 has more than four light holes 16 that are vertically penetrating. All the light holes 16 are arranged in a circumferential array around the center line of the thrust bearing 14. The distance from the center line of the light hole 16 to the center line of the thrust bearing 14 is equal to the distance from the center line of the threaded hole 15 to the center line of the thrust bearing 14.

[0026] The bottom of the push-flow aerator 5 is fixedly connected to the top surface of the platform 12. The four light holes 16 on the platform 12 are all inserted into bolts 17 and fixedly connected to the four threaded holes 15 on the chassis 11 as one unit. The top of the push-flow aerator 5 is connected to an air inlet pipe 18 that extends out of the water surface.

[0027] An annular stepped groove 19 is provided on the bottom surface of the chassis 11 outside the outer circle of the central cylinder 13, and a retaining ring 20 is provided inside the annular stepped groove 19 on the outer circle of the central cylinder 13.

[0028] The working principle and corresponding beneficial effects of this utility model are as follows: This utility model is installed at the inverted siphon outlet 21 of the main canal of the South-to-North Water Diversion Project. The inverted siphon outlet 21 is typically a four-hole structure, narrower than the main canal, and has ample space on both sides of the gate chamber, facilitating construction. The gas disturbance algae suppression scheme, as an emergency measure, can be installed and dismantled at the inverted siphon outlet 21 using the maintenance gate slot 22 and the mobile hoist 23, saving investment. The gas disturbance algae suppression device of this utility model can be dismantled after the algae growth period ends.

[0029] The long horizontal bar 6, short vertical bar 7, rectangular frame 8, and side rails of the base frame 1 are all made of 100×50×5mm rectangular stainless steel tubing, material Q235A. Two long horizontal bars 6 and several short vertical bars 7 are welded to form a truss steel structure, providing good resistance to water flow impact. Two rectangular frame panels 8 are located in the gate slots 22 on the left and right sides of the maintenance gate, providing support against water flow impact. The rectangular frame panels 8 are welded with lifting lugs 2, which can be connected to lifting chains to suspend the base frame 1 between the two gate slots 22. The hoist 23 can adjust the height of the base frame 1 by suspending two lifting chains 25 via the grab beam 24. A front side rail 9 and a rear side rail 10 are provided on the outside of the gate slots 22 on the base frame 1 to reduce excessive lateral swaying of the base frame 1 and reduce the shaking of the propulsion aerator 5 during operation. The base plate 3 is the installation position for the turntable 4 and the propulsion aerator 5.

[0030] The turntable 4 is mainly assembled from a chassis 11 and a platform 12 via a thrust bearing 14. The chassis 11 is fixedly (welded) onto the base plate 3 of the frame 1. The upper surface of the chassis 11 has four threaded holes 15. The platform 12 is set on the chassis 11 and is rotatably connected to the base plate via the thrust bearing 14. The central cylinder 13 serves to position and install the thrust bearing 14, and a limiting retaining ring 20 is set on the lower outer circle to prevent the platform 12 from moving axially (up and down). The platform 12 is designed with a ring (several) of smooth holes 16. Rotating the platform 4 can synchronously rotate the propeller aerator 5 fixedly connected to the platform 12, that is, adjust the propeller direction of the propeller aerator 5. After adjustment, four of the smooth holes 16 on the platform 12 correspond one-to-one with the four threaded holes 15 on the chassis 11. Bolts 17 are inserted and tightened to fix the platform 12.

[0031] A locking beam 26 is installed at the top of the gate slot 22, arranged in the direction of water flow. A lifting ring is welded to the bottom of the locking beam 26 and located inside the upper port of the gate slot 22. The lifting chain 25 is a ring chain, and its upper and lower ends are respectively connected to the locking beam 26 and the lifting lug 2 on the rectangular frame 8. Workers can adjust the length of the lifting chain 25 according to the changes in the water immersion depth of this utility model. First, the two lifting chains 25 are hoisted to the predetermined depth using the grab beam 24 of the hoist 23. Then, the lifting chains 25 are reliably connected to the locking beam 26. After that, the hoist 23 can be released from the lifting chains 25. Under normal working conditions, the water immersion depth of the device is maintained by the connection of the lifting chains 25 with the locking beam 26.

[0032] The above embodiments illustrate the basic principles and features of this utility model. However, the above descriptions are merely preferred embodiments and are not limited to these embodiments. Those skilled in the art, inspired by this patent, can make many modifications and improvements without departing from the spirit and scope of the claims, all of which fall within the protection scope of this utility model. Therefore, the patent and its scope of protection should be determined by the appended claims.

Claims

1. A truss-type counter-current gas disturbance device, characterized in that: It includes a frame that is horizontally arranged along the left and right directions in the length direction, with lifting lugs at the top of the left and right ends of the frame, at least one seat plate on the frame, a turntable on the seat plate, and a push-flow aerator on the turntable.

2. The truss-type counter-current gas disturbance device according to claim 1, characterized in that: The frame includes two long horizontal bars arranged in the left-right direction. The two long horizontal bars are arranged at intervals. The two long horizontal bars are connected by several short vertical bars. A rectangular frame is fixed at the left and right ends of the two long horizontal bars. The rectangular frame is set vertically. The lifting lug is fixed at the top center of the rectangular frame.

3. A truss-type counter-current gas disturbance device according to claim 1 or 2, characterized in that: There are two seat plates, which are horizontally positioned on the left and right sides of the seat frame, respectively.

4. The truss-type counter-current gas disturbance device according to claim 2, characterized in that: Two front side stops are fixedly installed on the front side of the front long crossbar, and two rear side stops are fixedly installed on the rear side of the rear long crossbar. One front side stop and one rear side stop are both adjacent to the rectangular frame at the left end, and the other front side stop and the other rear side stop are both adjacent to the rectangular frame at the right end.

5. A truss-type counter-current gas disturbance device according to claim 3, characterized in that: The turntable includes a chassis and a platform. The bottom surface of the chassis is fixedly mounted on the base plate. A circular hole that is open at both the top and bottom is opened in the center of the chassis. A lower annular groove is provided at the upper end of the circular hole on the top of the chassis. An upper annular groove is provided on the bottom surface of the platform, corresponding to the lower annular groove. A central cylinder extending coaxially into the circular hole is integrally provided on the bottom surface of the platform inside the upper annular groove. A thrust bearing is installed on the outer circle of the central cylinder. The upper and lower parts of the thrust bearing are respectively assembled in the upper and lower annular grooves. Four threaded holes are arranged in a circumferential array around the center line of the thrust bearing on the top surface of the chassis. More than four light holes that are open at both the top and bottom are opened on the platform. All the light holes are arranged in a circumferential array around the center line of the thrust bearing. The distance from the center line of the light hole to the center line of the thrust bearing is equal to the distance from the center line of the threaded hole to the center line of the thrust bearing.

6. A truss-type counter-current gas disturbance device according to claim 5, characterized in that: The bottom of the push-flow aerator is fixedly connected to the top surface of the platform. The four holes on the platform are all bolted and fixedly connected to the four threaded holes on the chassis. The top of the push-flow aerator is connected to an air inlet pipe that extends out of the water surface.

7. A truss-type counter-current gas disturbance device according to claim 5, characterized in that: An annular stepped groove is formed on the bottom surface of the chassis outside the outer circle of the central cylinder, and a retaining ring is placed inside the annular stepped groove on the outer circle of the central cylinder.

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