System for generating power by using potential energy of backwater of slag yard
By designing a slag yard water potential energy power generation system in the sulfuric acid process for titanium dioxide production, a hydroelectric generator is used to convert the potential energy of the slag yard water into electrical energy, solving the problem of unutilized slag yard water potential energy, achieving efficient resource utilization and power supply, and reducing energy costs.
Patent Information
- Application Number
- CN202520134760.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-21
AI Technical Summary
In the sulfuric acid process for titanium dioxide production, the potential energy of the recycled water in the slag yard is not effectively utilized, resulting in resource waste.
Design a system to generate electricity using the potential energy of slag yard backwater. The system converts the potential energy of the slag yard backwater into electrical energy through a hydro-generator, and supplies power to the electrical equipment through a voltage stabilizing control cabinet and a dual power transfer switch cabinet. The system also uses pneumatic regulating valves and flow meters to regulate the power generation and drainage requirements.
It achieves effective utilization of the potential energy of the slag yard backwater, reduces energy costs, improves the comprehensive utilization rate of resources, and has a simple design with low construction and maintenance costs.
Smart Images
Figure CN223661998U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of resource recycling, and particularly relates to a system for generating electricity by utilizing the potential energy of backwater of a slag yard. BACKGROUND
[0002] In the production process of titanium dioxide by sulfuric acid method, 32000m3 of wastewater is generated by the slag yard every day, and the horizontal difference between the slag yard and the factory is 110m. In the traditional circulating water process, the potential energy generated by the backwater drop is often not effectively utilized, resulting in waste of resources. SUMMARY
[0003] The utility model discloses a system for generating electricity by utilizing the potential energy of backwater of a slag yard.
[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a system for generating electricity by utilizing the potential energy of backwater of a slag yard, characterized by that the outlet at the lower part of the backwater pool of the slag yard is connected to the input end of the water turbine generator through a water outlet pipe, one output end of the water turbine generator is connected to the connection terminal of the input end of the voltage stabilizing control cabinet, the output end air switch of the voltage stabilizing control cabinet is connected to the connection terminal of the input end of the double power supply change-over switch cabinet, and the output end air switch of the double power supply change-over switch cabinet is connected to the motors of multiple power consuming equipment; the other output end of the water turbine generator is connected to the power storage device for storing power.
[0005] Further, the first pneumatic regulating valve and the electromagnetic flowmeter are connected to the water outlet pipe before the water outlet pipe is connected to the water turbine generator, and the first pneumatic regulating valve is adjusted by the electromagnetic flowmeter to adjust the power generation capacity of the water turbine generator to meet the actual demand.
[0006] Further, the branch pipe is connected to the water outlet pipe, the pressure transmitter and the second pneumatic regulating valve are connected to the branch pipe, and the end of the branch pipe is connected to the three-stage baffling pool; the flow of the three-stage baffling pool is adjusted by the second pneumatic regulating valve controlled by the pressure transmitter to meet the drainage demand.
[0007] Further, the water tank is arranged at the lower part of the water turbine generator, and the outlet at the bottom of the water tank is connected to the three-stage baffling pool through the drain pipe.
[0008] Further, the number of the power consuming equipment is set according to the production process; and the power consuming equipment is the delivery pump.
[0009] The utility model has the advantages that the backwater potential energy of the horizontal difference between the slag yard and the factory is utilized to generate electricity, the design is simple and easy to operate, the construction cost and the maintenance cost are low, no additional energy consumption is increased, the comprehensive utilization rate of resources can be improved, additional power can be provided for the enterprise, and thus the energy cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1The utility model discloses a schematic diagram of the utility model discloses a slag field backwater power generation system.
[0011] In the figure: 1 - slag field backwater pool, 2 - outlet pipe, 3 - water turbine generator, 4 - voltage stabilizing control cabinet, 5 - double power conversion switch cabinet, 6 - delivery pump, 7 - first pneumatic regulating valve, 8 - electromagnetic flowmeter, 9 - branch pipe, 10 - pressure transmitter, 11 - second pneumatic regulating valve, 12 - drain pipe, 13 - three-stage baffling pool, 14 - power storage device. DETAILED DESCRIPTION
[0012] The principles and features of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and not used to limit the scope of the utility model.
[0013] Embodiment, see Figure 1 A system for generating electricity by using the potential energy of slag field backwater, characterized in that: the outlet of the lower part of the slag field backwater pool 1 is connected to the input end of the water turbine generator 3 through the outlet pipe 2, one output end of the water turbine generator 3 is connected to the wiring terminal of the input end of the voltage stabilizing control cabinet 4, the output end air switch of the voltage stabilizing control cabinet 4 is connected to the wiring terminal of the input end of the double power conversion switch cabinet 5, and the output end air switch of the double power conversion switch cabinet 5 is connected to the motors of a plurality of electric equipment 6; the other output end of the water turbine generator 3 is connected to the power storage device 14 for storing electric quantity.
[0014] The first pneumatic regulating valve 7 and the electromagnetic flowmeter 8 are arranged on the outlet pipe 2 before being connected to the water turbine generator 3, the first pneumatic regulating valve 7 is controlled by the electromagnetic flowmeter 8 to adjust the power generation capacity of the water turbine generator 3 to meet the actual demand.
[0015] The branch pipe 9 is arranged on the outlet pipe 2, the pressure transmitter 10 and the second pneumatic regulating valve 11 are connected to the branch pipe 9, and the end of the branch pipe 9 is connected to the three-stage baffling pool 13; the flow of the three-stage baffling pool 13 is controlled by the second pneumatic regulating valve 11 adjusted by the pressure transmitter 10 to meet the drainage demand.
[0016] The water turbine generator 3 is provided with a water tank at the lower part, and the outlet at the bottom of the water tank is connected to the three-stage baffling pool 13 through the drain pipe 12.
[0017] The number of the electric equipment 6 is arranged according to the production process requirement; the electric equipment 6 is the delivery pump.
[0018] Working process: the water in the slag field backwater pool 1 flows downward through the water outlet pipe 2, and its potential energy is converted into kinetic energy. The water flow with kinetic energy flows through the water turbine generator 3. The blades of the water turbine generator 3 capture the kinetic energy generated by the water, and convert it into the rotational mechanical energy of the water turbine. The rotation of the water turbine drives the rotation of the rotor in the generator, generating alternating current. The generated current is stabilized by the voltage stabilizing control cabinet 4, and then enters the double power conversion switch cabinet 4, and then provides power for the motors of the three delivery pumps.
[0019] The first pneumatic regulating valve 7 is controlled by the electromagnetic flowmeter 8 to adjust the power generation of the water turbine generator 3 to meet the actual demand. The second pneumatic regulating valve 11 is adjusted by the pressure transmitter 10 to control the flow of the three-stage baffling pool 13 to meet the drainage demand. The water flow that has done work flows through the water groove at the bottom of the water turbine generator 3 and then enters the three-stage baffling pool 13. The electric quantity of the water turbine generator 3 is stored in the electric storage device 14.
[0020] When the slag field cannot generate backwater for parking and maintenance, the conventional power supply in the plant area is connected to the double power conversion switch cabinet 5 to continuously provide power for the delivery pump 6.
[0021] Power generation calculation: the power generation P per hour = 9.8QHn
[0022] P- the output power of the generator (kW);
[0023] Q- flow rate (m³ / s), the volume of water flowing through the water turbine per unit time;
[0024] H- water head (m), the effective water head for the work of the water turbine, which is the total water level difference of the inlet and outlet sections of the water turbine;
[0025] n- efficiency (including the total efficiency of the water turbine and the generator);
[0026] 9.8- a constant for converting flow rate and water head into kW·h.
[0027] P = 9.8 x 0.18 x 80 x 0.89 x 0.95 = 119 kW.
Claims
1. A system for generating electricity using the potential energy of backwater from a slag field, characterized by: The outlet of the lower part of the slag field backwater pool (1) is connected with the input end of the water turbine generator (3) through the outlet pipe (2), one output end of the water turbine generator (3) is connected with the wiring terminal of the input end of the stable voltage control cabinet (4), the output end of the stable voltage control cabinet (4) is connected with the wiring terminal of the input end of the double power switch cabinet (5) through the air switch, the output end of the double power switch cabinet (5) is connected with the motors of a plurality of electric equipment (6) respectively, and the other output end of the water turbine generator (3) is connected with the electricity storage device (14) for storing electricity.
2. A system for generating electricity using the potential energy of backwater from a slag field according to claim 1, characterized in that: The outlet pipe (2) is provided with the first pneumatic regulating valve (7) and the electromagnetic flowmeter (8) before being connected with the water turbine generator (3), the first pneumatic regulating valve (7) is controlled by the electromagnetic flowmeter (8) to adjust the power generation of the water turbine generator (3) to meet the actual demand.
3. A system for generating electricity using the potential energy of backwater in a slag field according to claim 1, characterized in that: The outlet pipe (2) is provided with the branch pipe (9), the branch pipe (9) is connected with the pressure transmitter (10) and the second pneumatic regulating valve (11), and the end of the branch pipe (9) is connected with the three-stage baffle pool (13); the flow of the three-stage baffle pool (13) is controlled by the second pneumatic regulating valve (11) adjusted by the pressure transmitter (10) to meet the drainage demand.
4. The system for generating electricity using the potential energy of backwater in a slag field according to claim 1, characterized in that: The lower part of the water turbine generator (3) is provided with the water tank, and the outlet at the bottom of the water tank is connected with the three-stage baffle pool (13) through the drain pipe (12).
5. A system for generating electricity using the potential energy of backwater in a tailings pond as claimed in claim 1, wherein: The number of the electric equipment (6) is set according to the production process requirement, and the electric equipment (6) is the delivery pump.