Self-adaptive power generation type pressure reducing valve and using method thereof

Abstract

The self-adaptive power generation type pressure reducing valve comprises a valve body, a valve front channel and a valve rear channel, an arc-shaped pipe is fixedly connected into the valve front channel, the other end of the arc-shaped pipe communicates with a drainage channel, and a plurality of spraying pipes are arranged at the top of the end, close to the arc-shaped pipe, of the drainage channel; at least two open grooves are formed in the circumferential face of the middle of the drainage channel, flexible water-resisting layers are connected into the open grooves in a sealed mode, the drainage channel is sleeved with an overflow pipeline containing the spray pipes and the open grooves, the end, close to the arc-shaped pipe, of the overflow pipeline is closed, and a plurality of elastic connecting pieces are fixedly connected to the inner wall of the overflow pipeline. The free end of the elastic connecting piece is fixedly connected with blocking blocks matched with the spraying pipes in a one-to-one correspondence mode, and a turbine power generation assembly located between the open groove and the end, away from the arc-shaped pipe, of the drainage channel is installed in the center in the drainage channel. The device has the beneficial effects that the turbine power generation assembly is ensured to work stably, the overall structure is simple, and maintenance is convenient.

Description

Technical Field

[0001] The invention relates to a pressure reducing valve, in particular to an adaptive power generation type pressure reducing valve and a use method thereof. Background Art

[0002] At present, the world is short of resources, and various energy sources such as water resources and gas sources are in short supply. For water resources, the concept of smart water services has emerged. How to save water and achieve effective leakage control? The United States and Italy have successively proposed some advanced pressure valves with flow detection functions, which can control leakage as small as possible, but their flow detection devices require external power supplies or batteries, rely on external power supply, and only need to detect flow parameters, with low power consumption. However, smart water services are far from limited to leakage control. It is also necessary to measure various parameters such as water quality in order to make a comprehensive evaluation of the water flowing in the valve. Therefore, it is necessary to add multiple types of detection instruments. At this time, the simple external power supply or battery can no longer fully drive the simultaneous operation of various detection instruments. If you want to achieve the effect of full power supply, you need to make a complex design of the external power supply or battery, which will result in a large amount of engineering, high cost, and troublesome maintenance in the later stage.

[0003] For example, the Chinese invention patent authorization announcement number CN107859779B discloses a self-generating multifunctional pressure reducing valve and a control method thereof, including a valve body, the valve body is provided with an actuator for controlling the opening, a power generation device, a data acquisition component, a data processing and display terminal, the power generation device includes a power generation component inside the valve body and a battery component outside the valve body, and the data acquisition component is arranged before and / or inside the valve and / or after the valve; the data acquisition component is used to collect the medium parameters of the valve body in real time and transmit the parameters to the data processing and display terminal, and the operator performs corresponding operations on the actuator according to the parameters provided by the data processing and display terminal, and the power generation device is used to provide working power for the data acquisition component, the data processing and display terminal. The setting of the swing mechanism provides effective support for the swing of the generator set, stabilizes the medium flow at the power generation core, and makes the generator set generate electricity uniformly. The swing mechanism of this patent has a complex structure, high manufacturing cost, and is inconvenient to maintain. Moreover, since the water flow is changed by changing the angle of the generator set, the influence on the water flow is limited, and the problem of the impeller speed being affected by the water flow rate cannot be fundamentally solved. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the existing self-generating pressure reducing valve has a complex structure, high cost, and is inconvenient to maintain, and cannot fundamentally solve the problem that the impeller speed is affected by the water flow rate. For this purpose, an adaptive power generation pressure reducing valve and a method of using the same are provided.

[0005] The technical solution of the present invention is: an adaptive power generation pressure reducing valve, comprising a valve body, a front-valve channel located at one end of the valve body and a rear-valve channel located at the other end of the valve body, an arc tube fixedly connected in the front-valve channel, a gap is left between one end of the arc tube and the inner bottom of the front-valve channel, the other end of the arc tube is connected to a drainage channel, a plurality of nozzles are opened at the top of the end of the drainage channel close to the arc tube, at least two open grooves are opened on the middle circumference of the drainage channel, a flexible waterproof layer is sealed in the open groove, an overflow pipe for accommodating the nozzle and the open groove is connected to the outer sleeve of the drainage channel, the overflow pipe is closed at one end close to the arc tube, a plurality of elastic connectors are fixedly connected to the inner wall of the overflow pipe, a block corresponding to the nozzle is fixedly connected to the free end of the elastic connector, and a turbine power generation assembly located between the open groove and the end of the drainage channel away from the arc tube is installed in the center of the drainage channel.

[0006] In the above solution, the opening grooves are symmetrically distributed about the central axis of the drainage channel.

[0007] The turbine power generation assembly in the above solution is a hydroelectric turbine.

[0008] In the above scheme, a water outlet is provided at one end of the overflow pipe away from the arc pipe.

[0009] In the above solution, a one-way valve is provided at one end of the drainage channel away from the arc tube.

[0010] The method for using an adaptive power generation type pressure reducing valve comprises the following steps: the fluid enters the valve body from the channel in front of the valve, and when passing through the arc tube, part of the fluid passes through the arc tube into the drainage channel, and the fluid passes through the turbine power generation component to drive it to generate electricity; when the fluid flow is too large, the fluid pushes the blockage away, the elastic connecting piece is compressed, and part of the fluid enters the overflow pipe, reducing the impact on the turbine power generation component. As the fluid in the overflow pipe increases, the flexible waterproof layer expands into the drainage channel under the action of water pressure, reducing the inner diameter of the drainage channel, allowing more fluid to enter the overflow channel. When the fluid flow is normal, the elastic connecting piece pushes the blockage back into the nozzle.

[0011] The beneficial effect of the present invention is that the fluid is introduced into the drainage channel by using an arc tube, so that the fluid is stable. When the water flow in the drainage channel increases, the blockage is pushed away by the water pressure, and part of the water flows from the nozzle into the overflow pipe. When the water pressure in the overflow pipe increases, the flexible waterproof layer is pushed to expand into the drainage channel, so that more fluid enters the overflow channel, quickly reducing the water flow in the drainage channel, and automatically adjusting according to the water flow, ensuring the stable operation of the turbine power generation assembly. The overall structure is simple and maintenance is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the present invention; Figure 2 yes Figure 1 Schematic diagram of the coordination of the middle arc tube, drainage channel and overflow pipe; Figure 3 It is a schematic diagram of the use state of the present invention; In the figure, 1. valve body, 2. channel before valve, 3. channel after valve, 4. arc tube, 5. drainage channel, 6. nozzle, 7. flexible waterproof layer, 8. overflow pipe, 9. elastic connector, 10. block, 11. turbine power generation assembly. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] like Figure 1-2 As shown, the adaptive power generation type pressure reducing valve comprises a valve body 1, a front-valve channel 2 located at one end of the valve body and a rear-valve channel 3 located at the other end of the valve body, an arc tube 4 is fixedly connected in the front-valve channel, a gap is left between one end of the arc tube and the inner bottom of the front-valve channel, the other end of the arc tube is connected with a drainage channel 5, a plurality of nozzles 6 are opened at the top of the end of the drainage channel close to the arc tube, the nozzles are distributed at intervals along the axial direction of the drainage channel, at least two open grooves are opened on the central circumference of the drainage channel, a flexible waterproof layer 7 is sealed and connected in the open groove, an overflow pipe 8 for accommodating the nozzle and the open groove is connected to the outer sleeve of the drainage channel, the overflow pipe is closed at one end close to the arc tube, a plurality of elastic connectors 9 are fixedly connected to the inner wall of the overflow pipe, the free end of the elastic connector is fixedly connected to a block 10 corresponding to the nozzle, and a turbine power generation assembly 11 located between the open groove and the end of the drainage channel away from the arc tube is installed in the center of the drainage channel.

[0015] The pre-valve channel refers to the inflow channel of the valve body, and the post-valve channel refers to the outflow channel of the valve body. The valve body includes a main valve plate, a slow-closing valve plate, two bypass pipes (not shown), a diaphragm pressure plate, an upper diaphragm cavity and a lower diaphragm cavity.

[0016] As a preferred example of the present invention, the open slots are symmetrically distributed about the central axis of the drainage channel, and the number of the open slots is an even number, for example, there may be four, six or even more open slots. The turbine power generation component is a hydraulic turbine.

[0017] As a preferred example of the present invention, a water outlet is provided at one end of the overflow pipe away from the arc pipe, and the water outlet is convenient for discharging the fluid in the overflow pipe to prevent the liquid from flowing back into the drainage channel. Similarly, a one-way valve is provided at one end of the drainage channel away from the arc pipe, so as to discharge the fluid in the drainage channel to prevent the liquid from flowing back.

[0018] like Figure 3As shown, the method for using the adaptive power generation type pressure reducing valve includes the following steps: the fluid enters the valve body from the front channel of the valve, and part of the fluid enters the drainage channel through the arc tube when passing through the arc tube, and the fluid passes through the turbine power generation assembly to drive it to generate electricity; when the fluid flow is too large, the fluid pushes the blockage away, the elastic connecting piece is compressed, and part of the fluid enters the overflow pipe, thereby reducing the impact on the turbine power generation assembly, and as the fluid in the overflow pipe increases, the flexible waterproof layer expands into the drainage channel under the action of water pressure, reducing the inner diameter of the drainage channel, allowing more fluid to enter the overflow channel, and when the fluid flow is normal, the elastic connecting piece pushes the blockage back into the nozzle.

[0019] Those skilled in the art should be aware that the protection scheme of the present invention is not limited to the above-mentioned embodiments, and various arrangements, combinations and transformations can be performed on the basis of the above-mentioned embodiments. Without violating the spirit of the present invention, various transformations of the present invention fall within the protection scope of the present invention.

Claims

1. An adaptive power-generating pressure reducing valve, comprising a valve body (1), a front-valve passage (2) located at one end of the valve body, and a rear-valve passage (3) located at the other end of the valve body, wherein: An arc tube (4) is fixedly connected in the pre-valve channel, one end of the arc tube leaves a gap with the inner bottom of the pre-valve channel, the other end of the arc tube is connected to a drainage channel (5), a plurality of nozzles (6) are opened at the top of the end of the drainage channel close to the arc tube, at least two open grooves are opened on the central circumference of the drainage channel, a flexible waterproof layer (7) is sealed in the open groove, an overflow pipe (8) is connected to the outer cover of the drainage channel to accommodate the nozzles and the open groove, the overflow pipe is closed at one end close to the arc tube, a plurality of elastic connectors (9) are fixedly connected to the inner wall of the overflow pipe, the free end of the elastic connector is fixedly connected to a block (10) corresponding to the nozzle, and a turbine power generation assembly (11) is installed in the center of the drainage channel between the open groove and the end of the drainage channel away from the arc tube.

2. The adaptive power generation pressure reducing valve according to claim 1, characterized in that: The opening grooves are symmetrically distributed about the central axis of the drainage channel.

3. The adaptive power generation pressure reducing valve according to claim 1, characterized in that: The turbine power generation assembly is a hydro turbine.

4. The adaptive power generation pressure reducing valve according to claim 1, characterized in that: A water outlet is provided at one end of the overflow pipe away from the arc-shaped pipe.

5. The adaptive power generation pressure reducing valve according to claim 1, characterized in that: A one-way valve is arranged at one end of the drainage channel away from the arc-shaped tube.

6. The method for using the adaptive power generation type pressure reducing valve according to claim 1, characterized in that: The following steps are involved: The fluid enters the valve body from the front channel of the valve, and when passing through the arc tube, part of the fluid enters the diversion channel through the arc tube, and the fluid passes through the turbine power generation assembly to drive it to generate electricity; When the fluid flow is too large, the fluid will push the blockage away, the elastic connector will be compressed, and part of the fluid will enter the overflow pipe, reducing the impact on the turbine generator assembly. As the fluid in the overflow pipe increases, the flexible waterproof layer will expand into the drainage channel under the action of water pressure, reducing the inner diameter of the drainage channel and allowing more fluid to enter the overflow channel. When the fluid flow is normal, the elastic connector will push the blockage back into the nozzle.

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