An industrial circulating water power generation system

Abstract

The present invention discloses an industrial circulating water power generation system, including a water reservoir, a first and a second power impeller box, a gearbox, a workshop water pump, a control device and an electric storage device. The water reservoir is closed, and the first and the second power impeller boxes are arranged on one side of the water reservoir, and their heights are respectively higher and lower than the liquid level of the water reservoir, and are connected to the water reservoir; the first and the second power impeller boxes are connected to the gearbox, and drive a three-phase generator to generate electricity; the workshop water pump is connected to the water outlet end of the second power impeller box and the workshop water inlet pipe. The present invention converts the kinetic energy of water into mechanical energy through the first and the second power impeller boxes, and converts it into electrical energy through the gearbox and the three-phase generator, so as to realize the conversion and utilization of the kinetic energy of water. The heights of the first and the second power impeller boxes are respectively higher and lower than the liquid level of the water reservoir, and a siphon effect is formed during the water return of the water reservoir and the water inlet of the workshop, thereby improving the kinetic energy conversion rate of the circulating water and having a good energy-saving and consumption-reducing effect.

Description

Technical Field

[0001] The invention relates to the field of industrial circulating water, and in particular to an industrial circulating water power generation system. Background Art

[0002] Process circulating water is water used in industrial production to cool various machines, welding guns and processing equipment in the workshop. In actual production, the circulation of industrial water usually requires the uninterrupted operation of the water pump to realize the mobilization of circulating water in the workshop. In this process, the circulation of industrial water still has a lot of kinetic energy after meeting the basic work of the workshop, and the uninterrupted operation of the water pump wastes a lot of electricity, resulting in a lot of energy waste.

[0003] To this end, Chinese invention patent CN113324423A provides a circulating water cooling system with power generation function, including a cooling tower, a water tank arranged below the cooling tower, a circulating water supply pipe arranged between the water tank and the workshop, and a circulating water return pipe arranged between the cooling tower and the workshop, and a water turbine generator set is arranged on the circulating water return pipe. By arranging the water turbine generator set on the return pipe, the kinetic energy of the circulating water return is converted into electrical energy, which achieves the purpose of energy saving and consumption reduction to a certain extent.

[0004] However, in the above scheme, the hydro-generator set is arranged on the circulating water return pipe, and can only convert the kinetic energy of the circulating water return into electrical energy, and the energy conversion degree is low.

[0005] In view of this, there is an urgent need to improve the industrial circulating water power generation system in the prior art to improve the kinetic energy conversion efficiency of the circulating water. Summary of the invention

[0006] The technical problem to be solved by the present invention is the low kinetic energy conversion efficiency of the existing industrial circulating water power generation system.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0008] An industrial circulating water power generation system, comprising:

[0009] The water storage tank is closed and has a return pipe on the top and a water outlet pipe on the bottom;

[0010] A first power impeller box is arranged on one side of the water reservoir, and its setting height is higher than the liquid level of the water reservoir, its water outlet is connected to the return pipe, and its water inlet is connected to the workshop return pipe through a return valve;

[0011] A second power impeller box is arranged on one side of the water reservoir, its setting height is lower than the liquid level of the water reservoir, and its water inlet end is connected to the water outlet pipe;

[0012] A gearbox, the input end of which is connected to the first power impeller box and the second power impeller box respectively through a linkage shaft; and the output end of which is connected to a three-phase generator;

[0013] A workshop water pump is connected to the water outlet of the second power impeller box through a workshop water pipe; the water outlet of the workshop water pipe is connected to the workshop;

[0014] A control device and a power storage device, wherein the power storage device is connected to the three-phase generator; the control device is connected to the workshop water pump and the power storage device, and is used to drive the workshop water pump to operate.

[0015] In the above scheme, preferably, the first power impeller box is connected to the workshop water pipe through a speed regulating pipeline, and the speed regulating pipeline is provided with an impeller speed regulating valve.

[0016] In the above scheme, preferably, the workshop water pump includes a first workshop water pump and a second workshop water pump, and the first workshop water pump and the second workshop water pump are connected through a water pump connecting pipe.

[0017] In the above scheme, preferably, the water pump connecting pipe is connected to the workshop water pipe, and a workshop water check valve is provided on the water pump connecting pipe.

[0018] In the above scheme, preferably, a workshop water valve is provided on the water outlet end of the workshop water pipe.

[0019] In the above solution, preferably, a vacuum chamber is further provided in the first power impeller box, and the volume of the vacuum chamber is one third of the volume of the first power impeller box.

[0020] In the above scheme, preferably, a water storage bay is provided on the water outlet end of the first power impeller box, the water storage bay is connected to the return pipe, and the outlet height of the return pipe is lower than the liquid level height in the water reservoir.

[0021] In the above scheme, preferably, the power storage device is an EWPS emergency power station, and the control device is a dual-power PLC water pump control station;

[0022] The power storage device further includes a voltage stabilizer electrically connected to the EWPS emergency power station.

[0023] In the above solution, preferably, a water distributor is further provided in the first power impeller box and the second power impeller box.

[0024] In the above scheme, preferably, a shock absorbing device is also provided on the water pump connecting pipe, and the shock absorbing device is a shock absorbing knot.

[0025] Compared with the prior art, the industrial circulating water power generation system provided by the present invention, through the first and second power impeller boxes connected to the water reservoir, converts the kinetic energy of water into mechanical energy during the workshop water discharge and reservoir water return process between the water reservoir and the workshop, transmits it to the gearbox, drives the three-phase generator to generate electricity, and stores it through the power storage device, or drives the workshop water pump to work, so as to realize the recovery of water kinetic energy; the first power impeller box and the second power impeller box are respectively arranged above the liquid level height of the water reservoir and below the liquid level height of the water reservoir, and a siphon effect is formed during the water return of the water reservoir and the water inflow of the workshop, thereby increasing the rotation speed of the first and second power impeller boxes, increasing the kinetic energy conversion rate of the circulating water, and having a good energy-saving and consumption-reducing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A top view of the industrial circulating water power generation system of the present invention;

[0027] Figure 2 It is a side view of the industrial circulating water power generation system of the present invention;

[0028] Figure 3 It is a cross-sectional schematic diagram of the industrial circulating water power generation system in the present invention.

[0029] in, Figures 1 to 3 The corresponding relationship between the names of the components and the reference numerals is as follows:

[0030] Water reservoir 1, first power impeller box 2, second power impeller box 3, gearbox 4, three-phase generator 5, workshop water pump 6, workshop water pipe 7, control device 8, power storage device 9,

[0031] Return pipe 11, outlet pipe 12,

[0032] Water storage bay 21, return valve 22, vacuum chamber 23, linkage shaft 24, speed regulating pipeline 25, impeller speed regulating valve 26, water distributor 27,

[0033] Linkage shaft 31, water distributor 32,

[0034] The first workshop water pump 61, the second workshop water pump 62, the water pump connecting pipe 63, the workshop water check valve 64, the shock absorbing joint 65,

[0035] Workshop water valve 71,

[0036] Voltage regulator 91. DETAILED DESCRIPTION

[0037] The present invention provides an industrial circulating water power generation system, wherein the circulating water transmits the water discharge power to the gearbox through the first and second power impeller boxes, and the gearbox drives the three-phase generator to generate electricity, thereby realizing the conversion of mechanical energy to electrical energy during the workshop cooling water return flow and the workshop water inlet siphon effect, improving the kinetic energy conversion efficiency of the industrial circulating water, and achieving the purpose of energy saving and consumption reduction. The present invention is described in detail below in conjunction with the drawings and specific embodiments of the specification.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the industrial circulating water power generation system provided by the present invention includes a water reservoir 1, a first power impeller box 2, a second power impeller box 3, a gearbox 4, a three-phase generator 5 and a workshop water pump 6.

[0039] The water reservoir 1 is closed and contains industrial circulating water. A return pipe 11 is provided on the top surface of the water reservoir 1, and a water outlet pipe 12 is provided at the bottom of the water reservoir 1.

[0040] The first power impeller box 2 is arranged on one side of the water reservoir 1. The setting height of the first power impeller box 2 is higher than the liquid level height in the water reservoir 1. The water outlet end of the first power impeller box 2 is connected with the return pipe 11 through the water reservoir bay 21. The outlet height of the return pipe 11 is lower than the liquid level height of the water reservoir 1, that is, the outlet of the return pipe 11 is arranged below the liquid level of the water reservoir 1 to improve the siphon suction force of the siphon effect of the workshop return water.

[0041] A return valve 22 is also provided on the water inlet end of the first power impeller box 2, and the return valve 22 is used to connect with the workshop return pipe, so that the workshop return water can enter the water reservoir 1 through the first power impeller box 2. A vacuum chamber 23 is also provided in the first power impeller box 2, and the volume of the vacuum chamber 23 is one third of the volume of the first power impeller box 2, and is used to increase the rotation speed of the first power impeller box 2.

[0042] The second power impeller box 3 is arranged on one side of the water reservoir 1 , the height of the second power impeller box 3 is lower than the page height of the water reservoir 1 , and the water inlet end of the second power impeller box 3 is connected to the water outlet pipe 12 of the water reservoir 1 .

[0043] The water outlet of the second power impeller box 3 is connected to the workshop water pump 6 through the workshop water pipe 7, and the circulating water is sucked into the workshop water pipe 7 by the workshop water pump 6, and the circulating water is transported to the workshop. The workshop water pipe 7 is provided with a workshop water valve 71.

[0044] The first power impeller box 2 is also provided with a speed regulating pipe 25, which is connected to the workshop water pipe 7, and an impeller speed regulating valve 26 is also provided on the speed regulating pipe 25. The workshop water pipe 7 supplements the first power impeller box 2 with water power through the speed regulating pipe and the impeller speed regulating valve 26 to ensure the stable operation of the three-phase generator 5.

[0045] The workshop water pump 6 includes a first workshop water pump 61 and a second workshop water pump 62, and the first workshop water pump 61 and the second workshop water pump 62 are connected through a water pump connecting pipe 63. The water pump connecting pipe 63 is connected to the workshop water pipe 7, and a workshop water check valve 64 is provided on the water pump connecting pipe 63. Through the workshop water check valve 64, the first workshop water pump 61 or the second workshop water pump 62 is isolated from the workshop water pipe 7, so as to facilitate the normal operation of the system when the first workshop water pump 61 or the second workshop water pump 62 is stopped for maintenance. A shock absorbing device is also provided on the water pump connecting pipe 63, and the shock absorbing device is a shock absorbing knot 65 to reduce the vibration of the first workshop water pump 61 and the second workshop water pump 62 during operation.

[0046] The first power impeller box 2 and the second power impeller box 3 are respectively connected to the gearbox 4 through the linkage shafts 24 and 31, which are used to transmit the mechanical energy generated by the first power impeller box 2 and the second power impeller box 3 to the gearbox 4. The gearbox 4 is connected to the three-phase generator 5 to convert the mechanical energy into electrical energy. The first power impeller box 2 and the second power impeller box 3 are provided with water distributors 27 and 32, which are convenient for improving the operating stability of the first power impeller box 2 and the second power impeller box 3.

[0047] The system also includes a control box 8 and a power storage device 9. The control device 8 is set on one side of the workshop water pump 6. The power storage device 9 is connected to the three-phase generator 5. The control device 8 is connected to the workshop water pump 6 and the power storage device 9 to drive the workshop water pump 6 to operate.

[0048] The power storage device 9 is an EWPS emergency power station, the control device 8 is a dual-power PLC water pump control station, and the power storage device 9 also includes a voltage stabilizer 91, which is electrically connected to the EWPS emergency power station to improve the stability of the power supply provided by the power storage device 9.

[0049] The working process of the present invention is as follows:

[0050] The water reservoir 1 is closed and contains industrial circulating water for circulation in the workshop. When the workshop water pump 6 is started for the first time, the workshop water pump 6 is driven by the mains electricity, and the circulating water enters the second power impeller box 3 through the outlet pipe 12. The second power impeller box 3 rotates and transmits mechanical energy to the gearbox 4 through the linkage shaft 31. The gearbox 4 drives the three-phase generator 5 to convert the mechanical energy into electrical energy, which is stored by the power storage device 9. The circulating water enters the workshop through the workshop water pipe 7 and the workshop water valve 71.

[0051] When the circulating water flows back, the circulating water enters the first power impeller box 2 through the return valve 22, drives the first power impeller box 3 to rotate, and transmits the water power to the gearbox 4 through the linkage shaft 24, and the gearbox 4 drives the three-phase generator 5 to generate electricity, realizing energy conversion in the water return process. In this process, the impeller speed regulating valve 26 sends part of the water flow in the workshop water pipe 7 into the first power impeller box 3 through the speed regulating pipeline 25 to ensure the stable operation of the three-phase generator 5.

[0052] Compared with the prior art, the industrial circulating water power generation system provided by the present invention has a first power impeller box connected to the lower part of the water reservoir, a second power impeller box connected to the return valve and the water inlet pipe of the water reservoir, and the first and second power impeller boxes are connected to the gearbox through a linkage shaft to drive the three-phase generator to generate electricity, thereby realizing the conversion of mechanical energy into electrical energy during the workshop water inlet and workshop cooling water backflow process. The converted electrical energy can be stored or used to power a water pump. The present invention realizes secondary recovery of circulating water power without affecting the normal operation of workshop equipment, greatly improves the power conversion efficiency of industrial circulating water, thereby reducing the energy consumption of industrial circulating water during the circulation process, and achieving the purpose of energy saving and consumption reduction.

[0053] In the present invention, the second power impeller box is connected to the lower part of the water reservoir, and the siphon effect during the workshop water intake process is utilized to realize the kinetic energy conversion of the circulating water during the workshop water intake process, thereby improving the kinetic energy utilization efficiency of the circulating water.

[0054] In the present invention, a vacuum chamber is provided in the first power impeller box, and the volume of the vacuum chamber is one third of the volume of the first power impeller box, which reduces the water resistance when the impeller rotates and improves the rotation efficiency of the power impeller box. A water storage bay is provided at the end of the outlet pipe of the first power impeller box, and the water outlet height of the water storage bay is lower than the liquid level height of the normal water in the reservoir, forming a siphon effect, increasing the return water volume of the workshop, thereby increasing the rotation speed of the first power impeller box and improving the power generation efficiency of the workshop return water.

[0055] In the present invention, the workshop water pump includes a first workshop water pump and a second workshop water pump. The first workshop water pump and the second workshop water pump are connected by a water pump connecting pipe. A workshop water one-way valve is arranged on the water pump connecting pipe to achieve isolation of the first workshop water pump or the second workshop water pump from the workshop water outlet pipe. When one workshop water pump needs to be repaired, the system can still maintain normal operation, thereby facilitating system maintenance work.

[0056] In the present invention, an impeller speed regulating valve is arranged on the first power impeller box, and the impeller speed regulating valve is connected to the water outlet pipe of the workshop, so as to facilitate a part of the water entering the workshop to enter the first power impeller box, thereby realizing the water power supplement of the first power impeller box, and the transfer of the first power impeller box and the second power impeller box can be intelligently adjusted according to the actual water consumption, thereby providing a stable rotation speed for the three-phase generator.

[0057] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention.

Claims

1. An industrial circulating water power generation system, characterized in that: include: A water reservoir is provided in a closed manner, wherein industrial circulating water is provided in the water reservoir; a return pipe is provided on the top surface of the water reservoir, and a water outlet pipe is provided at the bottom thereof; A first power impeller box is arranged on one side of the water reservoir, and its setting height is higher than the liquid level of the water reservoir, its water outlet is connected to the return pipe, and its water inlet is connected to the workshop return pipe through a return valve; A second power impeller box is arranged on one side of the water reservoir, its setting height is lower than the liquid level of the water reservoir, and its water inlet end is connected to the water outlet pipe; A gearbox, the input end of which is connected to the first power impeller box and the second power impeller box respectively through a linkage shaft; and the output end of which is connected to a three-phase generator; A workshop water pump is connected to the water outlet of the second power impeller box through a workshop water pipe; the water outlet of the workshop water pipe is connected to the workshop; A control device and a power storage device, wherein the power storage device is connected to the three-phase generator; the control device is connected to the workshop water pump and the power storage device, and is used to drive the workshop water pump to operate; The first power impeller box is connected to the workshop water pipe through a speed regulating pipeline, and the speed regulating pipeline is provided with an impeller speed regulating valve; A water storage bay is arranged on the water outlet end of the first power impeller box, and the water storage bay is connected with the return water pipe, and the outlet height of the return water pipe is lower than the liquid level height in the water reservoir.

2. The industrial circulating water power generation system according to claim 1, characterized in that: The workshop water pump comprises a first workshop water pump and a second workshop water pump, and the first workshop water pump and the second workshop water pump are connected via a water pump connecting pipe.

3. The industrial circulating water power generation system according to claim 2, characterized in that: The water pump connecting pipe is communicated with the workshop water pipe, and a workshop water one-way valve is arranged on the water pump connecting pipe.

4. The industrial circulating water power generation system according to claim 2, characterized in that: A shock absorbing device is also provided on the water pump connecting pipe, and the shock absorbing device is a shock absorbing knot.

5. The industrial circulating water power generation system according to claim 1, characterized in that: A workshop water valve is arranged on the water outlet end of the workshop water pipe.

6. The industrial circulating water power generation system according to claim 1, characterized in that: A vacuum chamber is also provided in the first power impeller box, and the volume of the vacuum chamber is one third of the volume of the first power impeller box.

7. The industrial circulating water power generation system according to claim 1, characterized in that: The power storage device is an EWPS emergency power station, and the control device is a dual-power PLC water pump control station; The power storage device further includes a voltage stabilizer electrically connected to the EWPS emergency power station.

8. The industrial circulating water power generation system according to claim 1, characterized in that: The first power impeller box and the second power impeller box are also provided with a water distributor.

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