CN119617221A

CN119617221A - Adaptive power generation pressure reducing valve and method of using the same

Info

Publication number: CN119617221A
Application number: CN202411600885.9A
Authority: CN
Inventors: 赵敏; 王从伟; 赵中竞; 查金平
Original assignee: Tongling Tianhai Flow Control Co ltd
Current assignee: Tongling Tianhai Flow Control Co ltd
Priority date: 2024-11-11
Filing date: 2024-11-11
Publication date: 2025-03-14

Abstract

The invention discloses a self-adaptive power generation type pressure reducing valve and a use method thereof, the self-adaptive power generation type pressure reducing valve comprises a valve body, a valve front channel and a valve rear channel, wherein an arc-shaped pipe is fixedly connected in the valve front channel, the other end of the arc-shaped pipe is communicated with a drainage channel, a plurality of spray pipes are arranged at the top of one end, close to the arc-shaped pipe, of the drainage channel, at least two open slots are arranged on the periphery of the middle part of the drainage channel, a flexible water-resisting layer is connected in the open slots in a sealing manner, an overflow pipeline for accommodating the spray pipes and the open slots is sleeved outside the drainage channel, one end, close to the arc-shaped pipe, of the overflow pipeline is closed, a plurality of elastic connecting pieces are fixedly connected to the inner wall of the overflow pipeline, a blocking block matched with the spray pipes in a one-to-one correspondence manner is fixedly connected to the free ends of the elastic connecting pieces, and a turbine power generation assembly arranged between the open slots and one end, far away from the arc-shaped pipe, of the drainage channel is arranged in the drainage channel. The invention has the beneficial effects of ensuring the stable operation of the turbine power generation assembly, along with simple integral structure and convenient maintenance.

Description

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

Technical Field

The invention relates to a pressure reducing valve, in particular to an adaptive power generation type pressure reducing valve and a using method thereof.

Background

At present, global resources are in shortage, various energy sources such as water resources, gas sources and the like are in shortage, aiming at the water resources, the concept of intelligent water business is developed, water saving is performed, and effective leakage control is realized, wherein the U.S. and Italy sequentially propose some advanced pressure valves with flow detection functions, which can control leakage to be as small as possible, but the flow detection device of the pressure valve needs an external power supply or a battery, depends on external power supply, only needs to detect flow parameters, and has low power consumption. However, the intelligent water service is far not limited to leakage control, and various parameters such as water quality and the like need to be measured so as to comprehensively evaluate the water flowing through the valve, so that various types of detection instruments need to be added, and at the moment, an external power supply or a battery which is simply arranged cannot fully drive various detection instruments to operate at the same time, and if the effect of comprehensively supplying power is achieved, the external power supply or the battery needs to be subjected to complex design, so that the engineering quantity is large, the cost is high, and the later maintenance is troublesome.

The invention discloses a self-generating multifunctional pressure reducing valve and a control method thereof, as disclosed in Chinese patent application publication No. CN107859779B, wherein the self-generating multifunctional pressure reducing valve comprises a valve body, the valve body is provided with an actuator for controlling the opening degree, and is also provided with a power generation device, a data acquisition component and a data processing and display terminal, the power generation device comprises a power generation component arranged inside the valve body and a battery component arranged outside the valve body, the data acquisition component is arranged in front of and/or in the valve and/or behind the valve, the data acquisition component is used for acquiring medium parameters of the valve body in real time and transmitting the parameters to the data processing and display terminal, an operator carries out corresponding operation on the actuator according to the parameters provided by the data processing and display terminal, and the power generation device is used for providing working power for the data acquisition component, the data processing and the display terminal. The swing mechanism is arranged to provide effective support for swing of the generator set, and stabilize medium flux at the generating core part, so that the generator set can generate electricity uniformly. The swing mechanism of the patent has the advantages of complex structure, high manufacturing cost and inconvenient maintenance, and the influence range on the water flow is limited because the water flow is changed by changing the angle of the generator set, so that the problem that the rotating speed of the impeller is influenced by the water flow cannot be fundamentally solved.

Disclosure of Invention

The invention aims to solve the technical problems that the existing self-generating pressure reducing valve is complex in structure, high in cost and inconvenient to maintain, and the problem that the rotating speed of an impeller is influenced by the water flow rate cannot be fundamentally solved, and provides a self-adaptive power generating pressure reducing valve and a using method thereof.

The technical scheme is that the self-adaptive power generation type pressure reducing valve comprises a valve body, a valve front channel positioned at one end of the valve body and a valve rear channel positioned at the other end of the valve body, wherein an arc-shaped pipe is fixedly connected in the valve front channel, a gap is reserved between one end of the arc-shaped pipe and the inner bottom of the valve front channel, the other end of the arc-shaped pipe is communicated with a drainage channel, a plurality of spray pipes are arranged at the top of one end, close to the arc-shaped pipe, of the drainage channel, at least two open grooves are arranged on the periphery of the middle of the drainage channel, a flexible water-resisting layer is connected in the open grooves in a sealing manner, an overflow pipeline for accommodating the spray pipes and the open grooves is sleeved outside the drainage channel, one end, close to the arc-shaped pipe, of the overflow pipeline is fixedly connected with a plurality of elastic connecting pieces, the free ends of the elastic connecting pieces are fixedly connected with blocking blocks which are in one-to-one correspondence with the spray pipes, and a turbine power generation assembly positioned between the open grooves and one end, far away from the arc-shaped pipe, of the drainage channel is arranged in the drainage channel.

In the above scheme, the open grooves are symmetrically distributed about the central axis of the drainage channel.

The turbine power generation assembly in the above aspect is a hydro turbine.

In the scheme, one end of the overflow pipeline, which is far away from the arc-shaped pipe, is provided with the water passing port.

In the scheme, one end of the drainage channel, which is far away from the arc-shaped pipe, is provided with the one-way valve.

When the flow rate of the fluid is too large, the fluid pushes the blocking block away, the elastic connecting piece compresses, part of the fluid enters the overflow pipeline, the impact of the turbine power generation assembly is lightened, along with the increase of the fluid in the overflow pipeline, the flexible water-resisting layer expands into the drainage channel under the action of water pressure, the inner diameter of the drainage channel is reduced, more fluid enters the overflow channel, and when the flow rate of the fluid is normal, the blocking block is pushed back into the spray pipe by the elastic connecting piece.

The invention has the beneficial effects that the arc-shaped pipe is utilized to introduce fluid into the drainage channel, so that the fluid is stable, when the water flow in the drainage channel becomes large, the blocking block is pushed away by water pressure, part of water flow enters the overflow pipeline from the spray pipe, and when the water pressure in the overflow pipe is increased, the flexible water-resisting layer is pushed to expand into the drainage channel, so that more fluid enters the overflow channel, the water flow in the drainage channel is quickly reduced, the adjustment is automatically performed according to the water flow, the stable work of the turbine power generation assembly is ensured, the whole structure is simple, and the maintenance is convenient.

Drawings

FIG. 1 is a schematic illustration of the present invention;

FIG. 2 is a schematic view of the cooperation of the arced tube, the drainage channel and the overflow channel of FIG. 1;

FIG. 3 is a schematic view of the present invention in use;

In the figure, 1, a valve body, 2, a valve front channel, 3, a valve rear channel, 4, an arc-shaped pipe, 5, a drainage channel, 6, a spray pipe, 7, a flexible water-resisting layer, 8, an overflow pipeline, 9, an elastic connecting piece, 10, a blocking piece, 11 and a turbine power generation assembly.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1-2, the self-adaptive power generation type pressure reducing valve comprises a valve body 1, a valve front channel 2 positioned at one end of the valve body and a valve rear channel 3 positioned at the other end of the valve body, wherein an arc-shaped pipe 4 is fixedly connected in the valve front channel, one end of the arc-shaped pipe is kept with a gap with the inner bottom of the valve front channel, the other end of the arc-shaped pipe is communicated with a drainage channel 5, a plurality of spray pipes 6 are arranged at the top of one end, close to the arc-shaped pipe, of the drainage channel, the spray pipes are axially distributed at intervals along the drainage channel, at least two open slots are formed in the peripheral surface of the middle part of the drainage channel, a flexible water-resisting layer 7 is connected in the open slots in a sealing manner, an overflow pipe 8 for accommodating the spray pipes and the open slots is sleeved outside the drainage channel, one end, close to the arc-shaped pipe, the inner wall of the overflow pipe is fixedly connected with a plurality of elastic connecting pieces 9, the free ends of the elastic connecting pieces are fixedly connected with a blocking block 10 which is in one-to one correspondence with the spray pipes, and a turbine power generation component 11 positioned between the open slots and one end, far away from the arc-shaped pipe, of the drainage channel is arranged in the center.

The pre-valve passage refers to an inflow passage of the valve body, the post-valve passage refers to an outflow passage of the valve body, and the valve body comprises a main valve plate, a slow-closing valve plate, two bypass pipelines (not shown), a diaphragm pressing plate, a diaphragm upper cavity and a diaphragm lower cavity.

As a preferred embodiment of the invention, the open grooves are symmetrically distributed about the central axis of the drainage channel, in which case the number of open grooves is even, for example four or six or more open grooves are possible. The turbine power generation assembly is a water turbine.

As a preferable example of the invention, one end of the overflow pipeline far away from the arc-shaped pipe is provided with a water passing port, and the water passing port is convenient for discharging fluid in the overflow pipeline and preventing the fluid from flowing back into the drainage channel. Similarly, one end of the drainage channel far away from the arc-shaped pipe is provided with a one-way valve, and fluid in the drainage channel is discharged by the one-way valve, so that liquid backflow is prevented.

The application method of the self-adaptive power generation type pressure reducing valve comprises the following steps that when fluid enters the valve body from a valve front channel and passes through an arc-shaped pipe, part of the fluid enters a drainage channel through the arc-shaped pipe, the fluid drives the turbine power generation assembly to generate power, when the fluid flow is overlarge, the fluid pushes away a blocking block, an elastic connecting piece compresses, part of the fluid enters an overflow pipeline, the impact of the turbine power generation assembly is relieved, as the fluid in the overflow pipeline increases, a flexible water-resisting layer expands towards the drainage channel under the action of water pressure, the inner diameter of the drainage channel is reduced, more fluid enters the overflow channel, and when the fluid flow is normal, the blocking block is pushed back into the spray pipe by the elastic connecting piece.

It should be understood by those skilled in the art that the protection scheme of the present invention is not limited to the above embodiments, and various arrangements and modifications can be made on the basis of the above embodiments, and various modifications of the present invention fall within the protection scope of the present invention without departing from the spirit of the present invention.

Claims

1. The self-adaptive power generation type pressure reducing valve comprises a valve body (1), a valve front channel (2) positioned at one end of the valve body and a valve rear channel (3) positioned at the other end of the valve body, and is characterized in that an arc-shaped pipe (4) is fixedly connected in the valve front channel, a gap is reserved between one end of the arc-shaped pipe and the inner bottom of the valve front channel, the other end of the arc-shaped pipe is communicated with a drainage channel (5), a plurality of spray pipes (6) are arranged at the top of one end of the drainage channel, which is close to the arc-shaped pipe, at least two open slots are formed in the peripheral surface of the middle of the drainage channel, a flexible water-resisting layer (7) is connected in the open slots in a sealing manner, an overflow pipe (8) which is used for accommodating the spray pipes and the open slots is arranged in the open slots is sleeved outside the drainage channel, one end, which is close to the arc-shaped pipe, a plurality of elastic connecting pieces (9) are fixedly connected to the inner wall of the overflow pipe, a blocking block (10) which is matched with the spray pipes in a one-to-one correspondence manner is fixedly connected to the free end of the elastic connecting piece, and a turbine component (11) which is arranged in the drainage channel and is far away from one end of the arc-shaped pipe.

2. The self-adaptive power generation type pressure reducing valve according to claim 1, wherein the open grooves are symmetrically distributed about a central axis of the drainage channel.

3. The adaptive power generation relief valve of claim 1 wherein said turbine power generation assembly is a water turbine.

4. The self-adaptive power generation type pressure reducing valve according to claim 1, wherein a water passing port is formed at one end of the overflow pipeline, which is far away from the arc-shaped pipe.

5. The self-adaptive power generation type pressure reducing valve according to claim 1, wherein a one-way valve is arranged at one end of the drainage channel away from the arc-shaped pipe.

6. The method for using the self-adaptive power generation type pressure reducing valve according to claim 1, wherein the method is characterized by comprising the following steps that fluid enters the valve body from a valve front channel, part of the fluid enters the drainage channel through the arc-shaped pipe when passing through the arc-shaped pipe, the fluid drives the turbine power generation assembly to generate power through the turbine power generation assembly, when the fluid flow is too large, the fluid pushes away the blocking block, the elastic connecting piece compresses, part of the fluid enters the overflow pipeline, the impact on the turbine power generation assembly is relieved, the flexible water-resisting layer expands towards the drainage channel under the action of water pressure along with the increase of the fluid in the overflow pipeline, the inner diameter of the drainage channel is reduced, so that more fluid enters the overflow channel, and when the fluid flow is normal, the elastic connecting piece pushes the blocking block back into the spray pipe.