Pressure regulating device and long-distance gravity water delivery system

Abstract

The utility model provides a pressure regulating device and a long-distance gravity water delivery system. The device comprises a pressure regulating pipe, an electric regulating valve, an adapter pipe and a monitor, wherein the pressure regulating pipe is used for being communicated with a main water delivery pipe; the adapter pipe comprises a first pipe section and a second pipe section vertically communicated with the first pipe section; the first pipe section is provided with a first pipe opening, and the electric adjusting valve is arranged between the first pipe opening and the pressure adjusting pipe and is in communication connection with the monitor. The second pipe section is provided with a second pipe opening, and the second pipe opening is bent towards the ground and used for being communicated with the atmosphere. A liquid level meter is arranged in the adapter tube and is in communication connection with the monitor; the monitor is used for receiving an alarm signal of the liquid level meter and transmitting the alarm signal to the water delivery control platform, and the water delivery control platform remotely regulates and controls the valve opening degree of the electric regulating valve through the monitor so as to relieve the alarm and achieve pressure regulation of the main water delivery pipe. According to the utility model, accurate voltage regulation is realized, a voltage regulation system can be simplified, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water conveyance, in particular to a pressure regulating device and a long-distance gravity water conveyance system for a mountainous area long-distance gravity water conveyance system. Background Technique

[0002] Traditional long-distance gravity water conveyance pipeline systems generally adopt pressure regulating valves or pressure regulating structures. Pressure regulating and flow regulating valves such as pressure reducing valves, water hammer prevention air valves, flow regulating and pressure regulating valves (piston valves), etc., and pressure regulating structures include energy dissipation ponds, pressure regulating towers, etc.

[0003] In traditional long-distance gravity water conveyance pipeline systems, the use of pressure regulating valves can achieve precise control of flow rate, can achieve regulation within a large pressure difference range, and can achieve remote control. However, to cope with water hammer, multiple valves such as pressure reducing valves and water hammer prevention air valves need to be used in combination to achieve flow stability and water hammer protection, and static pressure regulation cannot be achieved; the civil engineering facilities of pressure regulating structures are costly and require regular maintenance.

[0004] Therefore, there is an urgent need for a pressure regulating device and a long-distance gravity water conveyance system that can simplify the pressure regulating system and reduce costs while achieving precise pressure regulation. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pressure regulating device and a long-distance gravity water conveyance system, aiming to solve the technical problems of complex pressure regulating structure or high cost of traditional mountainous area long-distance gravity water conveyance systems.

[0006] To achieve the above purpose, in the first aspect, the utility model provides a pressure regulating device, including: a pressure regulating pipe, an electric control valve, and a connecting pipe for communicating with the atmosphere, which are connected in sequence, and a monitor;

[0007] The pressure regulating pipe is used for communicating with the main water conveyance pipe;

[0008] The connecting pipe includes a first pipe section and a second pipe section vertically communicating with the first pipe section;

[0009] The first pipe section is provided with a first pipe orifice, the electric control valve is arranged between the first pipe orifice and the pressure regulating pipe and is in communication connection with the monitor;

[0010] The second pipe section is provided with a second pipe orifice, and the second pipe orifice is bent towards the ground direction for communicating with the atmosphere;

[0011] A liquid level gauge is arranged in the connecting pipe, and the liquid level gauge is in communication connection with the monitor;

[0012] The monitor is used to receive the alarm signal of the liquid level meter and transmit the alarm signal to the water supply control platform. The water supply control platform remotely controls the valve opening size of the electric regulating valve through the monitor to release the alarm and realize pressure regulation of the water supply main pipe.

[0013] As a further improvement of the above solution, the liquid level gauge is a static pressure liquid level gauge, which is arranged at the intersection of the first pipe section and the second pipe section.

[0014] As a further improvement of the above solution, the monitor includes a video monitoring module, a signal transmission module and a control module connected in communication.

[0015] The video monitoring module is used to collect water gushing video at the second pipe opening;

[0016] The signal transmission module is used to transmit the collected water bubbling video to the water delivery control platform;

[0017] The control module is used to receive the control signal fed back by the water delivery control platform, and adjust the valve opening size of the electric regulating valve based on the control signal.

[0018] As a further improvement of the above solution, the video monitoring module is arranged adjacent to the second pipe opening of the second pipe section;

[0019] The electric regulating valve is communicatively connected to the control module.

[0020] As a further improvement of the above solution, a protective net is provided at the second pipe opening to prevent insects from entering the pipe.

[0021] As a further improvement of the above solution, the voltage regulating device also includes a power supply, and the power supply adopts a solar cell or a nearby power supply.

[0022] In the second aspect, the utility model also provides a long-distance gravity water supply system, including a water supply main pipe and the pressure regulating device provided in the first aspect, wherein the water supply main pipe is arranged between the water intake point and the pretreatment end of the water plant, and the pressure regulating pipe of the pressure regulating device is connected to the water supply main pipe.

[0023] As a further improvement of the above solution, the diameter of the pressure regulating pipe is 2 to 3 levels smaller than that of the water supply main pipe.

[0024] As a further improvement of the above scheme, the second pipe opening of the pressure regulating device is placed above the dynamic water pressure line of the water supply main pipe, and the installation height of the pressure regulating pipe of the pressure regulating device is 2 to 4 meters higher than the dynamic water pressure line.

[0025] Since the utility model adopts the above technical solution, the beneficial effects of this application are:

[0026] 1. The utility model provides a pressure regulating device, comprising: a pressure regulating pipe, an electric regulating valve, a transfer pipe for communicating with the atmosphere, and a monitor connected in sequence; the pressure regulating pipe is used to communicate with a water supply main pipe; the transfer pipe comprises a first pipe section and a second pipe section vertically connected with the first pipe section; the first pipe section is provided with a first pipe opening, the electric regulating valve is arranged between the first pipe opening and the pressure regulating pipe, and is communicatively connected with the monitor; the second pipe section is provided with a second pipe opening, the second pipe opening is bent toward the ground, and is used to communicate with the atmosphere; a liquid level meter is provided in the transfer pipe , the liquid level meter is communicatively connected with the monitor; the monitor is used to receive the alarm signal of the liquid level meter and transmit the alarm signal to the water delivery control platform, and the water delivery control platform remotely controls the valve opening size of the electric regulating valve through the monitor to release the alarm and realize the pressure regulation of the water delivery trunk pipe; specifically, when the pressure regulating device provided by the utility model is used, when the pipeline is over-pressured (when the water hammer shock wave in the water delivery trunk pipe is transmitted to the pressure regulating pipe), the liquid level meter monitors that the water pressure reaches a predetermined value and water bubbling occurs, the liquid level meter outputs an alarm signal to the monitor, and the monitor The controller starts its video monitoring module and collects the water gushing video at the second pipe outlet, and transmits the collected water gushing video to the water supply control platform of the water plant. The staff sends a control signal to the monitor according to the water gushing situation in the water gushing video. The monitor reduces the valve opening of the electric regulating valve according to the control signal to reduce the water gushing amount and achieve the purpose of water saving (it can keep a trace of water gushing, keep it connected with the atmosphere, and reduce the static pressure of the subsequent pipeline); when the water supply main pipe generates negative pressure, since the second pipe outlet of the transfer pipe is connected with the atmosphere, air can be taken in through the pressure regulating pipe, thereby reducing the negative pressure on the water supply main pipe. Damage to the water supply trunk pipe; therefore, the pressure regulating device can respond accurately and quickly to the overpressure and negative pressure conditions, realize the pressure regulation of the water supply trunk pipe, and can ensure the stable operation pressure of the long-distance gravity water supply system in mountainous areas without maintenance and overhaul, and eliminate water hammer damage; in addition, the pressure regulating device provided by the utility model is only equipped with an electric regulating valve, and the purpose of fast and accurate pressure regulation can be achieved through the cooperation of the electric regulating valve, the monitor and the liquid level meter. Compared with the traditional control method of multi-valve linkage or pressure regulating structure, the adjustment device has a simple structure and can also save investment and reduce costs for the project.

[0027] 2. The present utility model also provides a long-distance gravity water conveyance system, which includes a main water conveyance pipe and the pressure regulating device provided in the first aspect. The main water conveyance pipe is arranged between a water intake point and the pretreatment end of a water plant, and the pressure regulating pipe of the pressure regulating device is communicated with the main water conveyance pipe. Since the pressure regulating device can quickly and accurately respond to the overpressure state and negative pressure state of the main water conveyance pipe, the operating pressure of the system can be maintained stable, and thus the water hammer damage can be eliminated. It can also adjust the static pressure of the long-distance gravity water conveyance system in mountainous areas, thereby reducing the pressure resistance grade of the pipe material, saving investment, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0029] Figure 1 It is a schematic diagram of the principle of a pressure regulating device disclosed by the present utility model;

[0030] Figure 2 It is a schematic diagram of the principle of a long-distance gravity water conveyance system disclosed by the present utility model.

[0031] Reference numerals:

[0032] 0. Pressure regulating device;

[0033] 1. Pressure regulating pipe; 2. Electric control valve; 3. Adapter pipe; 31. First pipe section; 32. Second pipe section; 4. Monitor; 5. Liquid level gauge; 6. Protection net;

[0034] 7. Main water conveyance pipe; 8. Water intake point; 9. Pretreatment end of water plant.

[0035] The realization, functional features and advantages of the object of the present utility model will be further described with reference to the drawings in combination with the embodiments. SPECIFIC EMBODIMENTS

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0037] It should be noted that all directional indications (such as up, down, etc.) in the implementation mode of the utility model are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0039] Furthermore, the technical solutions between the various implementation modes of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] Embodiment 1:

[0041] See also Figure 1 The utility model provides a pressure regulating device 0 for a long-distance gravity water delivery system in mountainous areas, comprising: a pressure regulating pipe 1, an electric regulating valve 2 and a transfer pipe 3 for communicating with the atmosphere, and a monitor 4, which are connected in sequence;

[0042] The pressure regulating pipe 1 is used to communicate with the water supply main pipe 7. Preferably, the pressure regulating pipe 1 can be flexibly arranged according to the terrain;

[0043] The transfer tube 3 includes a first tube section 31 and a second tube section 32 vertically connected to the first tube section 31;

[0044] The first pipe section 31 is provided with a first pipe opening, the electric regulating valve 2 is arranged between the first pipe opening and the pressure regulating pipe 1, and is communicatively connected with the monitor 4;

[0045] The second pipe section 32 is provided with a second pipe opening, and the second pipe opening is bent toward the ground for communicating with the atmosphere;

[0046] A liquid level meter 5 is provided in the transfer tube 3, and the liquid level meter 5 is communicatively connected with the monitor 4;

[0047] The monitor 4 is used to receive the alarm signal of the liquid level meter 5 and transmit the alarm signal to the water delivery control platform. The water delivery control platform remotely controls the valve opening of the electric regulating valve 2 through the monitor 4 to release the alarm and realize pressure regulation of the water delivery main pipe 7;

[0048] In some preferred embodiments, the monitor 4 includes a video monitoring module, a signal transmission module, and a control module that are communicatively connected.

[0049] The video monitoring module is configured to collect the video of water gushing at the second pipe orifice.

[0050] The signal transmission module is configured to transmit the collected video of water gushing to the water conveyance control platform.

[0051] The control module is configured to receive the control signal fed back by the water conveyance control platform and regulate the valve opening degree of the electric control valve 2 based on the control signal.

[0052] Specifically, when using the pressure regulating device 0 provided by the present utility model, when the pipeline is over-pressurized (when the water hammer shock wave in the main water conveyance pipe 7 reaches the pressure regulating pipe 1), and the liquid level gauge 5 monitors that the water pressure reaches a predetermined value and water gushes out, the liquid level gauge 5 outputs an alarm signal to the monitor 4. The monitor 4 activates its video monitoring module and collects the video of water gushing at the second pipe orifice, and transmits the collected video of water gushing to the water conveyance control platform of the waterworks. The staff issues a control signal to the monitor 4 according to the water gushing situation in the video of water gushing. The monitor 4 reduces the valve opening degree of the electric control valve 2 according to the control signal to reduce the amount of water gushing, achieving the purpose of water conservation (it can maintain a small amount of water gushing, keep it connected to the atmosphere, and reduce the subsequent pipeline static pressure); the staff can also adjust the valve flow at the starting point of the main water conveyance pipe 7 according to the liquid level situation fed back by the liquid level gauge 5 to reduce the inlet dynamic water pressure and relieve the over-pressurized state of the pipeline system, avoiding the occurrence of pipe burst accidents.

[0053] In addition, since the second pipe orifice of the adapter pipe 3 is completely connected to the atmosphere, that is, the pressure regulating pipe 1 is completely connected to the atmosphere. Such a setting can reduce the static water pressure of the pipeline behind the pressure regulating device 0, make the pipeline in a relatively safe pressure range, reduce the pressure bearing grade of the pipe material, save project investment, and thus reduce costs.

[0054] When a negative pressure or air pocket occurs in the main water conveyance pipe 7, compared with the traditional installation of a combined air inlet and exhaust valve, since the second pipe orifice of the adapter pipe 3 of this pressure regulating device 0 is communicated with the atmosphere, it can quickly intake and exhaust air, eliminate the damage of the water hammer shock wave to the pipeline, and there is no need for equipment maintenance and repair, and there is no potential safety hazard of equipment damage, thus reducing the damage of negative pressure to the main water conveyance pipe 7; therefore, this pressure regulating device 0 can make an accurate and rapid response to overpressure and negative pressure states, realize the pressure regulation of the main water conveyance pipe 7, and ensure the stable operation pressure of the long-distance gravity water conveyance system in mountainous areas without maintenance and repair, eliminating water hammer damage; in addition, the pressure regulating device 0 provided by the present utility model is only provided with an electric control valve 2, and through the cooperation of the electric control valve 2, the monitor 4 and the liquid level gauge 5, the purpose of rapid and accurate pressure regulation is achieved. Compared with the traditional multi-valve linkage or the regulation method of a pressure regulating structure, the structure of this regulating device is simple, and it can also save investment for the project and reduce costs.

[0055] As a preferred embodiment, the liquid level gauge 5 is a static pressure type liquid level gauge 5, which is arranged at the intersection of the first pipe section 31 and the second pipe section 32; in this embodiment, the first pipe section 31 is arranged horizontally, preferably, the axis of the second pipe section 32 and the axis of the first pipe section 31 are arranged at an angle of 90°, and the static pressure type liquid level gauge 5 is arranged at the bottom of the second pipe section 32 for monitoring the liquid level in the pipeline.

[0056] As a preferred embodiment, the video monitoring module is adjacent to the second pipe orifice of the second pipe section 32 so as to clearly obtain the video of the water gushing information at the second pipe orifice, that is, the water outlet of the pressure regulating device 0; it should be noted that under normal conditions, the video monitoring module is in a closed state. When the liquid level gauge 5 monitors that the liquid level reaches a preset height and issues an alarm signal, the video monitoring module is controlled to be turned on. On the one hand, it can reduce energy consumption, and on the other hand, it can also reduce unnecessary video storage;

[0057] The electric control valve 2 is communicatively connected with the control module for controlling the opening degree of the valve of the electric control valve 2, and the control module is also communicatively connected with the water conveyance control platform so as to receive the control signal feedback by the water conveyance control platform.

[0058] As a preferred embodiment, a protective net 6 is arranged at the second pipe orifice for preventing insects from entering the pipeline, and the second pipe orifice is bent towards the ground direction, which can also prevent other pollutants from entering the pressure regulating pipe 1 and then polluting the entire pipeline. Preferably, during installation, the second pipe orifice of the adapter pipe 3 is directed towards the direction of the nearby gully so that the water discharged from the second pipe orifice can flow away in time.

[0059] As a preferred embodiment, the pressure regulating device 0 further includes a power source, which is a solar cell or a nearby power source; in this embodiment, the power source is preferably a solar cell; in some embodiments, if there is a nearby boundary power source, the nearby power source can be selected to supply power to this pressure regulating device 0.

[0060] Embodiment 2:

[0061] See Figure 2 , the present utility model also provides a long-distance gravity water conveyance system, including a main water conveyance pipe 7 and the pressure regulating device 0 provided in Embodiment 1. The main water conveyance pipe 7 is arranged between a water intake point 8 and a water plant pretreatment end 9. The pressure regulating pipe 1 of the pressure regulating device 0 is communicated with the main water conveyance pipe 7; it should be noted that in the main water conveyance pipe 7, different numbers of pressure regulating devices 0 as described in Embodiment 1 can be flexibly arranged according to the terrain conditions. Preferably, the pressure regulating device 0 is arranged at positions where overpressure and negative pressure are likely to occur in the mountain water conveyance system; since the pressure regulating device 0 can quickly and accurately respond to the overpressure state and negative pressure state of the main water conveyance pipe 7, thereby maintaining the stability of the system operation pressure and further eliminating water hammer damage; it can also adjust the static pressure of the long-distance gravity water conveyance system in the mountain area, thereby reducing the pressure resistance grade of the pipe material, saving investment, and reducing costs.

[0062] As a preferred embodiment, the diameter of the pressure regulating pipe 1 is 2 to 3 grades smaller than that of the main water conveyance pipe 7.

[0063] As a preferred embodiment, the second pipe orifice of the pressure regulating device 0 is placed above the dynamic water pressure line of the main water conveyance pipe 7, and the installation height of the pressure regulating pipe 1 of the pressure regulating device 0 is 2 to 4 m higher than the dynamic water pressure line.

[0064] It should be noted that the pressure regulating device provided by the present utility model is particularly applicable to a long-distance gravity water conveyance system in mountainous areas with a certain height difference. The main water conveyance pipe 7 with a corresponding length is set according to the actual height difference, and the pressure regulating device 0 can be set according to the actual terrain and positions where overpressure and negative pressure are likely to occur. Under the above conditions, it is preferred to set the pressure regulating device at a place with a drainage channel so that when overpressure occurs, the water in the main water conveyance pipe 7 can be timely discharged into the drainage channel.

[0065] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural transformations made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present utility model.

Claims

1. A voltage regulating device, characterized in that: It includes a pressure regulating pipe, an electric regulating valve and a transfer pipe for communicating with the atmosphere, and a monitor, which are connected in sequence; The pressure regulating pipe is used to communicate with the water supply main pipe; The transfer pipe includes a first pipe section and a second pipe section vertically connected to the first pipe section; The first pipe section is provided with a first pipe opening, the electric regulating valve is arranged between the first pipe opening and the pressure regulating pipe, and is communicatively connected with the monitor; The second pipe section is provided with a second pipe opening, and the second pipe opening is bent toward the ground and is used to communicate with the atmosphere; A liquid level meter is provided in the transfer tube, and the liquid level meter is communicatively connected with the monitor; The monitor is used to receive the alarm signal of the liquid level meter and transmit the alarm signal to the water delivery control platform, and the water delivery control platform remotely controls the valve opening size of the electric regulating valve through the monitor; the monitor includes a video monitoring module, a signal transmission module and a control module connected in communication, The video monitoring module is used to collect water gushing video at the second pipe opening; The signal transmission module is used to transmit the collected water bubbling video to the water delivery control platform; The control module is used to receive the control signal fed back by the water delivery control platform and adjust the valve opening size of the electric regulating valve based on the control signal; the control module is also communicatively connected with the water delivery control platform to receive the control signal fed back by the water delivery control platform.

2. A voltage regulating device according to claim 1, characterized in that: The liquid level gauge is a static pressure liquid level gauge, and is arranged at the intersection of the first pipe section and the second pipe section.

3. A voltage regulating device according to claim 1 or 2, characterized in that: The video monitoring module is disposed adjacent to the second pipe opening of the second pipe section; The electric regulating valve is communicatively connected to the control module.

4. A voltage regulating device according to claim 1 or 2, characterized in that: A protective net is provided at the second pipe opening to prevent insects from entering the pipe.

5. A voltage regulating device according to claim 1 or 2, characterized in that: The voltage regulating device also includes a power supply, and the power supply adopts a solar cell or a nearby power supply.

6. A long distance gravity water delivery system, characterized in that: It comprises a water main pipe and a pressure regulating device as described in any one of claims 1 to 5, wherein the water main pipe is arranged between a water intake point and a pre-treatment end of a water plant, and the pressure regulating pipe of the pressure regulating device is connected to the water main pipe.

7. A long distance gravity water delivery system according to claim 6, characterized in that: The diameter of the pressure regulating pipe is 2 to 3 levels smaller than that of the water supply main pipe.

8. A long distance gravity water delivery system according to claim 6, characterized in that: The second pipe opening of the pressure regulating device is placed above the dynamic water pressure line of the water supply main pipe, and the installation height of the pressure regulating pipe is 2-4m higher than the dynamic water pressure line.

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