Energy-storage load-increasing up-leading application device

Abstract

The utility model discloses an energy-storage load-increasing upward-guiding application device which comprises a drainage pipe, a first-stage energy accumulator, a second-stage energy accumulator and a water outlet pipe. The lower end of the drainage tube extends into the disinfected tail water tank, and the upper end of the drainage tube is communicated with the primary energy accumulator; the first-stage energy accumulator is communicated with the second-stage energy accumulator through a first water outlet pipe; the secondary energy accumulator is communicated with the upper end of the water outlet pipe through a second water outlet pipe, and the lower end of the water outlet pipe extends into a reclaimed water tank; a Tesla damper is arranged on the drainage tube; and a Tesla speed increaser is arranged on the water outlet pipe. According to the utility model, the secondary conveying of reclaimed water of a sewage treatment plant and the reclaimed water use requirements of public and auxiliary systems are met; and meanwhile, cooling water for a large-scale river discharge water pump and a large-scale fan of a sewage treatment plant is removed, and the stability of long-term operation of equipment and facilities is improved.

Description

Technical Field

[0001] The utility model relates to water treatment and sewage resource utilization technology, and more specifically to an energy storage and load-increasing upward application device. Background Art

[0002] In the existing sewage treatment process, there are two main solutions for automatically introducing the treated and disinfected tail water into the clean water tank:

[0003] 1) Destructive holes are made at the bottom of the side wall of the main process box culvert of the sewage treatment plant to cut the concrete wall. This method not only causes secondary damage to the original main structure, but also brings about the collapse of the concrete wall structure and other secondary problems that threaten the operation safety;

[0004] 2) Add a lift pump in the common channel culvert between the post-disinfection drainage culvert and the pump house forebay; use the electric power to pull the lift pump to lift the water in the common channel to the intermediate water tank. This solution not only involves expensive engineering investment costs, but also involves annual maintenance and overhaul costs, and also brings more continuous long-term electricity cost investment.

[0005] To sum up, the main defects of the first solution are as follows:

[0006] (1) The sewage treatment plant needs to be temporarily shut down to empty the common channel or perform underwater operations to cut concrete, which causes secondary damage to the structure and reduces the stability of the facility;

[0007] (2) After the main structure is cut on a large scale, the concrete wall structure is in danger of structural collapse during long-term operation, which poses a potential catastrophic risk to the operation of the sewage treatment plant.

[0008] The main drawbacks of the second solution are as follows:

[0009] (1) When adding a lift pump, related auxiliary equipment, valves, pipelines, cables, electrical equipment, etc. need to be added, and the engineering cost investment is relatively large;

[0010] (2) The additional pump equipment and related electrical equipment and piping components have high annual maintenance and overhaul costs;

[0011] (3) The lifting pump requires continuous consumption of electrical energy, and the electricity cost is extremely high. Utility Model Content

[0012] In view of the defects existing in the prior art, the purpose of the utility model is to provide an energy storage and load-increasing upward application device, which solves the secondary transportation of recycled water in sewage treatment plants and the demand for the use of reclaimed water in public auxiliary systems; at the same time, it also eliminates the need for cooling water for large-scale river discharge pumps and large fans in sewage treatment plants, and improves the stability of long-term operation of equipment and facilities.

[0013] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0014] An energy storage and load-increasing upward application device comprises a drainage pipe, a primary accumulator, a secondary accumulator and a water outlet pipe;

[0015] The lower end of the drainage pipe extends into the disinfected tailwater pool, and the upper end is connected to the primary accumulator;

[0016] The first-stage accumulator is connected to the second-stage accumulator through a first water outlet pipe;

[0017] The secondary accumulator is connected to the upper end of the water outlet pipe through the second water outlet pipe, and the lower end of the water outlet pipe extends into the middle water tank;

[0018] A Tesla damper is provided on the drainage pipe;

[0019] The water outlet pipe is provided with a Tesla speed increaser.

[0020] Preferably, the lower end of the drainage tube is configured as a bell mouth.

[0021] Preferably, the first-stage accumulator is fixed above the post-disinfection tailwater pool through a bracket;

[0022] A negative pressure gauge, a water injection port and an exhaust port are arranged on the top of the first-level accumulator.

[0023] Preferably, one end of the first water outlet pipe is connected to the middle position of the end of the first-stage accumulator, and extends to the interior of the first-stage accumulator and is arranged to be inclined downward.

[0024] Preferably, the secondary accumulator is provided in single or multiple form.

[0025] Preferably, a flow meter, a compensator and a flux adjuster are sequentially provided on the second water outlet pipe along the flow direction of the fluid.

[0026] Preferably, the second water outlet pipe is connected to the upper end of the water outlet pipe through an elbow.

[0027] Preferably, a diamond-shaped flow enhancer is further provided below the Tesla speed increaser.

[0028] Preferably, the compensator is an expansion joint;

[0029] The flux adjuster is a valve.

[0030] The energy storage and load-increasing upward application device provided by the utility model has the following beneficial effects:

[0031] 1) This utility model rationally uses recycled water to replace production and living water, laying the foundation for maximizing the utilization of sewage resources;

[0032] 2) The utility model solves the problem that the water discharge pump room is forced to operate at a high water level, and plays a vital role in the safe operation of various key equipment, electrical equipment, instruments and other equipment and facilities in the disinfection pool;

[0033] 3) The utility model provides reliable supply of cooling water and lubricating water for key equipment such as large water inlet pumps, large blowers, water outlet pumps, sludge dewatering machines, etc. in sewage treatment plants, ensuring their normal and safe operation and playing a basic supporting role;

[0034] 4) From the perspective of environmental benefits, the utility model can directly reduce the reliance on tap water during the operation of sewage treatment, reduce the use of tap water, and use the reclaimed water safely, stably and reliably as recycled water, so that the resource utilization of sewage can be implemented;

[0035] 5) The utility model can significantly reduce the investment in municipal infrastructure and significantly reduce the investment in operating costs, fully utilize the use of free energy, maintain a stable operating state, and save continuous power energy consumption. It can give full play to the substantial functions of the unpowered water pump and achieve social benefits that are difficult to quantify in monetary terms. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the layout of the energy storage and load-increasing upward application device of the utility model;

[0037] Figure 2 It is a schematic diagram of the flow distribution of the Tesla damper in the energy storage and load-increasing upward application device of the utility model when the fluid is drawn upward;

[0038] Figure 3 It is a schematic diagram of the flow blocking principle of the Tesla damper in the energy storage and load-increasing upward application device of the utility model;

[0039] Figure 4 It is a schematic diagram of the internal flow distribution of the Tesla speed increaser in the energy storage and load-increasing upward application device of the utility model. DETAILED DESCRIPTION

[0040] In order to better understand the above technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0041] Combination Figure 1 As shown, the utility model provides an energy storage and load-increasing upward application device, which includes a drainage pipe 1, a primary accumulator 2, a secondary accumulator 3 and a water outlet pipe 4.

[0042] The lower end of the drainage pipe 1 extends into the disinfected tailwater pool 5 , and the upper end is connected to the primary accumulator 2 .

[0043] The lower end (water intake) of the drainage pipe 1 is set as a bell mouth, facing the water surface, so that the kinetic energy generated by the water flow velocity of the box culvert drainage flow velocity of about 0.2m~0.3m / s is collected in the drainage pipe 1 through the bell mouth, and the water head obtains an upward potential energy head of about 0.3m.

[0044] The primary accumulator 2 is connected to the secondary accumulator 3 via a first water outlet pipe 6 .

[0045] One end of the first water outlet pipe 6 is connected to the middle position of the end of the first-stage accumulator 2 and extends to the inside of the first-stage accumulator 2 and is inclined downward.

[0046] The secondary accumulator 3 may be single or multiple, and each of the secondary accumulators 3 is connected to the upper end of the water outlet pipe 4 through the second water outlet pipe 7 , and the lower end of the water outlet pipe 4 extends into the middle water tank 8 .

[0047] A Tesla damper 9 is provided on the drainage pipe 1, and the Tesla damper 9 is a reversely installed Tesla valve.

[0048] The water outlet pipe 4 is provided with a Tesla speed increaser 10 , which is a forward-conducting Tesla valve.

[0049] The primary accumulator 2 is fixed above the disinfected tailwater pool 5 through a bracket 11 .

[0050] A negative pressure gauge 12 , a water injection port 13 and an exhaust port 14 are provided on the top of the primary accumulator 2 .

[0051] A flow meter 15 , a compensator 16 , and a flux adjuster 17 are sequentially arranged on the second water outlet pipe 7 along the flow direction of the fluid.

[0052] The compensator 16 is an expansion joint, and the flux adjuster 17 is a valve.

[0053] The second water outlet pipe 7 is connected to the upper end of the water outlet pipe 4 through the elbow 18 .

[0054] A diamond-shaped flow enhancer 19 is also provided below the Tesla speed increaser 10 .

[0055] When the energy storage and load-increasing upward application device of the utility model is started for the first time, the primary accumulator 2 and the related pipelines are filled with water through the water injection port 13. During the water injection process, since the Tesla damper 9 is reversely installed on the drainage pipe 1, the water in the primary accumulator 2 will not flow down and escape for a short time. Figure 3 shown.

[0056] Since the Tesla damper 9 replaces the traditional bottom valve, the safety risk of manually operating the valve in the pool is avoided. When the fluid flows in the reverse direction, each time the fluid passes through a channel, it enters a wing-shaped obstacle upward / downward. The backflow will cause the flow to have a blocking effect and increase the pressure head, hindering the overall forward flow of the fluid. And the more wing-shaped obstacles there are, the greater the resistance to the fluid's forward propulsion. This leads to the unique one-way conduction effect of the Tesla damper 9, such as Figure 2 shown.

[0057] In the first-stage accumulator 2, the water level potential energy is fully utilized to generate a positive pressure gas chamber for the second-stage energy demander 3. The positive pressure generated by the second-stage accumulator 3 serves as the first driving force for starting the siphon of the middle section. Within the first time of the outlet valve opening, the driving force causes the fluid to move toward the free section of the outlet, thereby generating a siphon.

[0058] As the siphon phenomenon occurs, the vacuum degree in the primary accumulator 2 gradually increases, and then it is converted into a negative pressure chamber. Under the action of the potential difference of the primary accumulator 2 when the drainage pipe 1 takes water, the primary accumulator 2 supplies water to the intermediate water tank 8 through the pipeline. Subsequently, the water level of the primary accumulator 2 drops, and a vacuum appears in the primary accumulator 2. Then, as time goes by, the vacuum degree gradually increases.

[0059] When the water flow in the first-level accumulator 2 guides the water in the tank to the middle water tank 8 under the action of siphon, the negative pressure in the tank is obvious. When the negative pressure reaches a certain level, the water flow is about to stop flowing in the pipeline, that is, before the siphon stops, the atmospheric pressure sucks the flowing water in the disinfection tank into the first-level accumulator 2, ensuring the water level height in the first-level accumulator 2, and continuing to trigger the siphon phenomenon of the water flow in the tank to supply water to the middle water tank 8.

[0060] After the secondary accumulator 3 completes the first step of positive pressure driving the fluid, as the fluid continues, a wall effect is generated due to the Coanda effect. After the positive atmospheric pressure of the secondary accumulator 3 is released, the siphon phenomenon continues. Newton has defined the properties of water. Because there is surface tension between water molecules, that is, there is a force of mutual attraction between water molecules, it is called a viscous fluid. In addition, because the liquid also has an adsorption force with the solid, it is under the action of these two forces that the fluid flows along the pipe space at the bottom of the secondary accumulator 3 according to the Coanda effect.

[0061] Due to the continuation of the Coanda effect and the superposition of the siphon phenomenon, the gas in the secondary accumulator 3 is gradually taken away, and the secondary accumulator 3 is converted into a negative pressure zone. As the liquid water flow continues, the gas in the secondary accumulator 3 gradually decreases, and a vacuum appears in the secondary accumulator 3. At this time, the secondary accumulator 3 is installed with an eccentric Venturi tube section in the pipeline section, so that the connection section between the secondary accumulator 3 and the pipeline is like a half-section Venturi throat. The throat avoids the suction of the negative pressure zone. The water flow in the pipeline enters the negative pressure bin, and the size of the vacuum determines the height of the upper suction head in the bin. When the secondary accumulator 3 absorbs liquid under the action of the vacuum and maintains a certain height, a high water head is formed at the outlet of the water outlet pipe 4 from the second water outlet pipe 7 to the middle water tank 8. Under the potential energy of this high water head, the stability of the water flow is promoted.

[0062] After the fluid flows out of the second outlet pipe 7, it enters the middle water pool 8 through the outlet pipe 4. The Tesla speed increaser 10 is integrated on the outlet pipe 4 to accelerate the downward flow of the liquid. When the water flows forward in the outlet pipe 4, the fluid can bypass all the wing-shaped obstacles of the Tesla speed increaser 10 and flow from the right to the left unimpeded, and the flow pressure is accelerated, thereby increasing the flow velocity of the hydraulic force. Figure 4 shown.

[0063] After passing through the Tesla speed increaser 10, the water flow speed is significantly increased. If the wing-shaped channels are sufficient, the Tesla speed increaser 10 can accelerate the fluid to supersonic speed. After the effect of the forward-conducting Tesla speed increaser 10, a diamond speed increaser 19 is then combined to increase the flow and speed of the fluid. The diamond speed increaser 19 performs particularly well in accelerating the siphon drainage speed, increasing the drainage flow by about 20%.

[0064] In summary, the energy storage and load-increasing upward application device of the utility model is used to automatically drain water from a container with a lower water head to a position with a higher water head, and then introduce it into another container with a high water head. The test platform obeys the flow law of the liquid. When the water flows in the container, it will be affected by its own gravity, and then a liquid level will be formed. If the liquid level is higher than the outlet position, the liquid water flow will naturally flow to the outlet. At this time, the liquid in the container will produce a negative pressure, and this negative pressure will cause the water flow to continue to flow toward the lower outlet. When the liquid continues to flow out of the container, a vacuum area will be formed in the container, and a greater negative pressure will continue to be generated in the vacuum area, thereby ensuring that the water flow is continuously lifted into the container, thereby achieving the purpose of transferring and transporting the liquid.

[0065] According to the basic principles of hydrostatics, in a special energy storage container, when the pressure is less than the atmospheric pressure, it is defined as a vacuum. The vacuum can lift the liquid to a certain height. From the law of physics, the theoretical height of liquid water is 10m. However, under actual working conditions, due to the different terrain altitudes, different dissolved oxygen in the water body, different air and water temperatures, and the differences in the processing and connection accuracy and airtightness of related equipment and pipelines, the actual lifting height is generally limited to about 7-8m in engineering. For example, if the vacuum value is too large, water molecules will also vaporize to a certain extent in different working environments, thus affecting the upper suction head.

[0066] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. An energy storage and load-increasing upward application device, characterized in that: It includes a drainage pipe, a primary accumulator, a secondary accumulator and a water outlet pipe; The lower end of the drainage pipe extends into the disinfected tailwater pool, and the upper end is connected to the primary accumulator; The first-stage accumulator is connected to the second-stage accumulator through a first water outlet pipe; The secondary accumulator is connected to the upper end of the water outlet pipe through the second water outlet pipe, and the lower end of the water outlet pipe extends into the middle water tank; The drainage pipe is provided with a Tesla damper; The water outlet pipe is provided with a Tesla speed increaser.

2. The energy storage and load-increasing upward application device according to claim 1 is characterized in that: The lower end of the drainage tube is arranged as a bell mouth.

3. The energy storage and load-increasing upward application device according to claim 1 is characterized in that: The first-level accumulator is fixed above the post-disinfection tailwater pool through a bracket; A negative pressure gauge, a water injection port and an exhaust port are arranged on the top of the first-level accumulator.

4. The energy storage and load-increasing upward application device according to claim 1 is characterized in that: One end of the first water outlet pipe is connected to the middle position of the end of the first-stage accumulator, and extends to the interior of the first-stage accumulator and is arranged to be inclined downward.

5. The energy storage and load-increasing upward application device according to claim 1 is characterized in that: The secondary energy accumulator may be provided in single or multiple configurations.

6. The energy storage and load-increasing upward application device according to claim 1 is characterized in that: The second water outlet pipe is provided with a flow meter, a compensator and a flux adjuster in sequence along the flow direction of the fluid.

7. The energy storage and load-increasing upward application device according to claim 1 is characterized in that: The second water outlet pipe is communicated with the upper end of the water outlet pipe through an elbow.

8. The energy storage and load-increasing upward application device according to claim 1 is characterized in that: A diamond-shaped flow enhancer is also provided below the Tesla speed increaser.

9. The energy storage and load-increasing upward application device according to claim 6 is characterized in that: The compensator is an expansion joint; The flux adjuster is a valve.

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