CN211116386U - Pipeline residual pressure power generation system - Google Patents

Abstract

The utility model provides a pipeline water delivery excess pressure power generation system, including conduit a, conduit a's one end is connected with hydroelectric generator set's water inlet, hydroelectric generator set's delivery port is connected with conduit c's one end, and conduit a still is connected with conduit b, and conduit b's one end is connected on conduit a's outer wall, is provided with valve an in conduit a, and valve an is located one side that is close to hydroelectric generator set, and conduit b's the other end is connected on conduit c's outer wall, is provided with valve c and relief pressure valve in conduit b. The utility model discloses can turn into the pressure energy of conduit into the electric energy when reducing conduit water pressure.

Description

Pipeline residual pressure power generation system

technical field

The utility model belongs to the technical field of power generation, and relates to a pipeline water transmission residual pressure power generation system.

Background technique

With the continuous improvement of people's living standards and the continuous development of society, people's water demand is also increasing. However, in many large and medium-sized cities in my country, especially in northern cities, water resources are seriously lacking. In order to solve the contradiction of water supply, many water transfer projects have been built in my country. Pipeline water delivery is often the priority of hydraulic workers because of its low cost, simple management, and convenient construction. However, there are also many problems in pipeline water delivery in the design process. In long-distance water pipelines, when the pressure is too high, the pipeline will burst. Therefore, reducing the pipeline pressure has become a problem that must be solved in long-distance water transportation. At present, the most important decompression measure is to add decompression energy-consuming facilities. Although decompression equipment can eliminate excess pressure, it often cannot make good use of water resources, resulting in waste of this part of energy.

Utility model content

The purpose of the utility model is to provide a pipeline water delivery residual pressure power generation system, which can convert the pressure energy of the water delivery pipeline into electric energy while reducing the water pressure of the water delivery pipeline.

The technical scheme adopted by the utility model is,

The residual pressure power generation system for pipeline water delivery includes a water delivery pipeline a, one end of the water delivery pipeline a is connected with the water inlet of the hydroelectric generating set, the water outlet of the hydroelectric generating set is connected with one end of the water delivery pipeline c, and the water delivery pipeline a is also connected with The water pipeline b is connected, and one end of the water pipeline b is connected to the outer wall of the water pipeline a. The water pipeline a is provided with a valve a, and the valve a is located on the side close to the hydraulic generator set, and the other end of the water pipeline b It is connected to the outer wall of the water delivery pipeline c, and the water delivery pipeline b is provided with a valve c and a pressure reducing valve.

The utility model is also characterized in that,

The hydroelectric generator set includes a generator and a water turbine coaxially connected to the generator, the water delivery pipe a is connected to the water inlet of the water turbine, and the water outlet of the water turbine is connected to the water delivery pipe c.

A valve b is also arranged in the water delivery pipeline c, and the valve b is arranged on the side close to the hydroelectric generating unit.

The utility model also includes a control system, the control system includes a control center, the control center is respectively connected with the valve a, the valve b, the valve c and the valve d, and the valve a, the valve b, the valve c and the valve d are all electronic valves.

The control center is also connected with a pressure sensor. The pressure sensor is arranged in the water pipeline a, and the pressure sensor is located on the side of the interface between the water pipeline a and the water pipeline b away from the turbine unit.

The beneficial effect of the present utility model is,

1. The setting of the turbine and generator can convert the pressure energy of the water pipeline into electrical energy;

2. The setting of the water pipeline b provides a spare pipeline for the maintenance and repair of the turbine, which makes the maintenance more convenient;

3. The pressure sensor is used to test the water pressure of the high-pressure section of the water pipeline, and transmit the water pressure to the control center. If the water pressure is too low and affects the utilization rate of energy conversion, the control center will open the water pipeline b to make the water delivery. Pipe b is in working condition, thus prolonging the service life of the turbine and generator.

Fourth, the user can manually control the electronic valve in the control center, saving working time and improving work efficiency.

Description of drawings

Fig. 1 is the schematic diagram of the utility model pipeline water conveyance residual pressure power generation system;

Figure 2 is a schematic diagram of the control system in the pipeline water delivery residual pressure power generation system of the present invention.

In the figure, 1. Turbine, 2. Generator, 3. Pressure reducing valve, 4. Valve a, 5. Water pipeline a, 6. Water pipeline b, 7. Water pipeline c, 8. Pressure sensor, 9 . Control Center, 10. Valve b, 11. Valve c, 12. Valve d.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figure 1, the pipeline water delivery residual pressure power generation system includes a water delivery pipeline a5, one end of the water delivery pipeline a5 is connected with the water inlet of the hydroelectric generator set, and the water outlet of the hydroelectric generator set is connected with one end of the water delivery pipeline c7, The water delivery pipeline a5 is also connected with the water delivery pipeline b6. One end of the water delivery pipeline b6 is connected to the outer wall of the water delivery pipeline a5. The water delivery pipeline a5 is provided with a valve a4. The other end of the water pipeline b6 is connected to the outer wall of the water delivery pipeline c7, the water delivery pipeline c7 is also provided with a valve b10, the valve b10 is arranged on the side close to the hydroelectric generating set, and the water delivery pipeline b6 is sequentially provided with valves c11, Pressure reducing valve 3 and valve d12.

The hydroelectric generating set includes a generator 2 and a water turbine 1 coaxially connected to the generator 2. The water inlet of the water turbine 1 is connected to the water delivery pipeline a5, and the water outlet of the water turbine 1 is connected to the water delivery pipeline c7.

The present invention also includes a control system, as shown in Figure 2, the control system includes a control center 9, the control center 9 is respectively connected with the valve a4, the valve b10, the valve c11, the valve d12 and the pressure sensor 8, and the pressure sensor 8 is arranged at In the water delivery pipeline a5, the pressure sensor 8 is located on the side of the interface between the water delivery pipeline a5 and the water delivery pipeline b6 away from the turbine unit, wherein the valve a4, the valve b10, the valve c11 and the valve d12 are all electronic valves.

The principle and use method of the pipeline water conveyance residual pressure power generation system of the utility model are as follows:

When it is necessary to use the hydroelectric generator set to generate electricity, open the valve a4 and the valve b10, close the valve c11 and the valve d12, the water flows through the hydraulic turbine and drives the runner of the hydraulic turbine to rotate. Since the hydraulic turbine and the generator are coaxially connected, the rotation of the runner drives the power generation. At the same time, the rotation of the turbine runner reduces the water pressure and relieves the pressure of the water pipeline.

When there is no need to use the hydroelectric generator set to generate electricity, close valve a4 and valve b10, open valve c11 and valve d12, the water flows through the water pipeline c, and the pressure reducing valve 3 is used to relieve the pressure of the water pipeline.

The control center 9 is respectively connected with the valve a4, the valve b10, the valve c11, the valve d12 and the pressure sensor 8. The user can control the switch of the valve in the control center 9, select the working state of the present utility model, and the control system can also automatically switch the work. state.

The automatic control principle of the control system is as follows:

The pressure sensor is used to test the water pressure of the high-pressure section, and the water pressure value is transmitted to the control center. The user can set the water pressure threshold in the control center. If the water pressure is lower than the water pressure threshold, the control center can automatically close the valves a4 and Valve b10, open valve c11 and valve d12, make the water pipeline b6 in working state, use pressure reducing valve 3 to reduce the water pressure; if the water pressure is higher than the water pressure threshold, the control center can automatically open valve a4 and valve b10, Close valve c11 and valve d12 to realize the functions of generating electricity and reducing water pressure.

The utility model of the pipeline water transmission residual pressure power generation system can fully utilize the excess water pressure energy while reducing the pressure on the pipeline, convert it into electrical energy, and meet the electricity demand of itself and its surroundings. In addition, a spare pipeline is provided to facilitate the maintenance of the turbine; the control system can automatically select the turbine or pressure reducing valve to reduce pressure according to the information provided by the pressure sensor, or it can be manually operated in the control center, which simplifies the work project and improves the work efficiency. .

Claims (6)

1. Pipeline water supply residual pressure power generation system, is characterized in that, comprises water delivery pipeline a (5), one end of described water delivery pipeline a (5) is connected with the water inlet of the hydroelectric generating set, and the outlet of the hydroelectric generating set is connected. The water outlet is connected to one end of the water delivery pipeline c (7), the water delivery pipeline a (5) is also connected to the water delivery pipeline b (6), and one end of the water delivery pipeline b (6) is connected to the water delivery pipeline a On the outer wall of (5), a valve a (4) is provided in the water pipeline a (5), the valve a (4) is located on the side close to the hydroelectric generating set, and the water pipeline b (6) is on the other side. One end is connected to the outer wall of the water delivery pipeline c(7), and the water delivery pipeline b(6) is provided with a valve c(11) and a pressure reducing valve (3). 2 . The residual pressure power generation system for pipeline water delivery according to claim 1 , wherein the hydroelectric generating set comprises a generator (2) and a water turbine (1) coaxially connected to the generator (2), and the The water inlet of the water turbine (1) is connected with the water delivery pipe a (5), and the water outlet of the water turbine (1) is connected with the water delivery pipe c (7). 3. The pipeline water transmission residual pressure power generation system according to claim 2, characterized in that, further comprises a control system, and the control system comprises a control center (9), the control center (9) is respectively connected with the valve a ( 4) Connect with valve c (11), both valve a (4) and valve c (11) are electronic valves. 4. The pipeline water transmission residual pressure power generation system according to claim 1 or 2, characterized in that, a valve b (10) is also provided in the water transmission pipeline c (7), and the valve b (10) is provided with On the side close to the hydroelectric generating set, a valve d (12) is also arranged in the water delivery pipeline b (6), and the valve d (12) is arranged on the side of the pressure reducing valve (3) away from the valve c (11). side. 5. The residual pressure power generation system for pipeline water conveyance according to claim 4, characterized in that it further comprises a control system, the control system comprises a control center (9), the control center (9) is respectively connected with the valve a (4), the valve b (10), the valve c (11) and the valve d (12) are connected, and the valve a (4), the valve b (10), the valve c (11) and the valve d (12) are all Electronic valve. 6. The residual pressure power generation system for pipeline water delivery according to claim 3, wherein the control center (9) is also connected with a pressure sensor (8), and the pressure sensor (8) is arranged on the water delivery pipeline a In (5), the pressure sensor (8) is located on the side of the interface between the water delivery pipe a (5) and the water delivery pipe b (6) away from the turbine unit.

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