Waterproof hammer conduction control pipe valve for intelligent water affair system

Abstract

According to the scheme, the waterproof hammer conduction control pipe valve of the intelligent water affair system can play an effective buffering and protecting role on the water hammer collision effect formed at the tail end of a long pipeline applied to an intelligent pipeline, and particularly plays a better protecting role on some bent connectors or structures with reversing conduction openings. The waterproof hammer conduction control pipe valve comprises a cylindrical hollow pipe valve shell and a supporting seat installed and connected to the outer portion of the pipe valve shell, a water inlet pipe is connected to the front end of the pipe valve shell, and meanwhile a water outlet pipe is connected to the position, close to the lower portion, of the rear side of the pipe valve shell. And the damping type conducting mechanism is arranged in the pipe valve shell and is used for resisting and relieving the impact of water flow at the pipeline bending joint.

Description

Technical Field

[0001] This utility model relates to the field of valve components for water supply systems, specifically a water hammer control valve for use in smart water systems. Background Technology

[0002] A smart water management system is a comprehensive solution that utilizes technologies such as the Internet of Things (IoT), big data, and artificial intelligence (AI) to achieve intelligent management of water resources throughout their entire lifecycle and intelligent operation of water affairs. It deploys sensors and controllers at key locations such as water sources, water plants, and pipe networks to collect real-time data on water quality, water pressure, and flow rate, transmitting this data to a data center for analysis and processing. The system architecture includes a perception layer, transmission layer, data processing layer, application layer, and user interaction layer, enabling functions such as data acquisition, remote monitoring, automated control, data analysis, and decision support. Smart water management systems are widely used in urban water supply, drainage management, sewage treatment, and water quality monitoring, improving water resource utilization efficiency, ensuring water supply security, enhancing the precision of water management, and optimizing user service experience. It not only promotes the digital transformation of the water industry but also provides strong support for sustainable urban development. Due to its diverse functions, smart water management systems involve complex and varied pipeline architectures in urban underground spaces and buildings, requiring more precise control of internal water flow. This has led to the development of various pipes, valves, and control devices with special structures and functions.

[0003] A drainage device for smart water management, disclosed in Chinese utility model patent application CN202221514657.6, includes a motor plate and a support base. A control pipe is welded to one side of the motor plate, and a drainage pipe is welded to the bottom of the control pipe. A motor is installed on one side of the motor plate, and a screw is sleeved on the output end of the motor. A support ring is sleeved on the outside of the control pipe, and a stabilizing plate and a guide plate are welded inside the control pipe. A sliding plate is threaded onto the surface of the screw, and a connecting rod is inserted into one end of the screw. A spring is sleeved on the surface of the connecting rod, and a plug is fixed to one end of the connecting rod. This drainage device for the water management system can effectively control the drainage water pressure according to the usage needs, and automatically drain water after reaching the preset water pressure, thereby controlling the water volume in the water storage tank.

[0004] However, the applicant discovered that in intelligent water systems with complex and variable pipeline structures, sudden changes in water flow velocity (such as rapid valve opening and closing, pump start-up and shutdown, gas accumulation in the pipeline, or unreasonable pipeline layout) often lead to sharp pressure fluctuations within the pipeline. This phenomenon typically occurs when valves are operated too quickly, pumps suddenly stop or start, gas in the pipeline is compressed or expanded, or when the pipeline flow velocity is too high or there are too many bends. Water hammer can cause problems such as pipeline rupture, equipment damage, and unstable water pressure, therefore, it is necessary to prevent and mitigate it by installing appropriate devices and components.

[0005] To address the aforementioned issues, this utility model provides a water hammer control valve suitable for smart water systems. It effectively buffers and protects against water hammer impacts at the ends of longer pipelines in smart pipelines, providing better protection, especially for structures such as bends or switching outlets. Utility Model Content

[0006] This utility model provides a water hammer control valve suitable for smart water systems. It can effectively buffer and protect against water hammer collisions at the ends of long pipelines in smart pipelines, and provides better protection for structures such as bends or switching outlets.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A water hammer control valve for a smart water system is characterized by comprising a cylindrical, hollow valve housing and a support seat mounted on the outside of the valve housing; an inlet pipe connected to the front end of the valve housing and an outlet pipe connected to the lower rear side of the valve housing; and a damping control mechanism inside the valve housing for resisting and mitigating the impact of water flow at pipe bends and connections.

[0009] As a preferred embodiment of the present invention, the damping conduction mechanism includes a support piston rod disposed inside the valve housing and capable of reciprocating along the valve body direction, and a damping oil cylinder located at the rear of the support piston rod; the support piston rod includes a plug head that abuts against the inner wall surface of the valve housing and a rod-shaped guide portion connected to the rear side of the plug head, the rod-shaped guide portion passing through the damping oil cylinder, and a first conduction cavity formed between the rear wall surface of the plug head and the front end surface of the damping oil cylinder, while a second conduction cavity is formed inside the damping oil cylinder, the first conduction cavity and the second conduction cavity are connected by an annular conduction pipe, and oil is disposed in the two conduction cavities and the annular conduction pipe.

[0010] As a preferred embodiment of the present invention, a buffer return spring is further provided between the front end face of the damping oil cylinder and the rear end face of the plug.

[0011] As a preferred embodiment of the present invention, the cylinder body of the damping oil cylinder is fixed to the rear end of the valve housing by locking bolts on the outside.

[0012] As a preferred embodiment of the present invention, a guide sleeve is provided between the cylinder body of the damping oil cylinder and the piston rod, and an elastic pad layer capable of buffering the collision is provided on the front end surface of the guide sleeve.

[0013] As a preferred embodiment of the present invention, an auxiliary support plate is installed at the front of the valve housing.

[0014] In summary, this utility model can achieve the following beneficial effects:

[0015] The water hammer control valve for the smart water system provided in this utility model can effectively buffer and protect against water hammer collisions at the ends of longer pipelines in smart pipelines, especially providing better protection for structures such as bends or switching outlets. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of the water hammer control valve;

[0017] Figure 2 A schematic diagram of the internal cross-sectional structure of the valve for controlling the flow of water hammer.

[0018] Figure 3 This is a schematic diagram of the internal structure of the damping unit.

[0019] In the picture:

[0020] 1—Valve housing, 101—Support seat, 102—Inlet pipe, 103—Outlet pipe;

[0021] 2—Damping conduction mechanism, 201—First conduction cavity, 202—Second conduction cavity, 203—Reset spring;

[0022] 3—Piston rod support, 301—Plug head, 302—Rod-shaped guide part;

[0023] 4—Damping hydraulic cylinder; 401—Locking bolt;

[0024] 5—Conducting guide sleeve; 501—Elastic pad;

[0025] 6 - Auxiliary support plate. Detailed Implementation

[0026] The following specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

[0027] This solution is achieved through the following technical means:

[0028] Example: In this example, a water hammer control valve for a smart water system is provided. It can effectively buffer and protect against water hammer collisions at the ends of long pipelines in smart pipelines, and provides better protection for structures such as bends or switching outlets.

[0029] For details, please refer to the instruction manual appendix. Figure 1 The schematic diagram of the overall appearance of the pipe valve shows that the structure of the pipe valve device includes a cylindrical and hollow pipe valve housing 1 and a support base 101 installed on the outside of the pipe valve housing 1. An inlet pipe 102 is connected to the front end of the pipe valve housing 1, and an outlet pipe 103 is connected to the lower rear side of the pipe valve housing 1. In smart water systems, the water flow inside the system needs to be frequently opened or closed under different operating conditions. Because the flow velocity and flow rate of the internal water are relatively large, a huge impact is caused at the bends in the pipe joints, resulting in the so-called water hammer effect. This causes excessive impact on the pipe wall at the bend, leading to breakage and damage. Therefore, in the embodiment provided in this application, a damping-type flow control mechanism 2 is provided inside the pipe valve housing 1 to resist and mitigate the impact of water flow at the bends in the pipe joints.

[0030] The damping conduction mechanism 2 here includes a support piston rod 3 disposed inside the valve housing 1 and capable of reciprocating along the valve body direction, and a damping oil cylinder 4 located at the rear of the support piston rod 3. The support piston rod 3 includes a plug head 301 that abuts against the inner wall surface of the valve housing 1 and a rod-shaped guide part 302 connected to the rear side of the plug head 301. The rod-shaped guide part 302 passes through the damping oil cylinder 4, and a first conduction cavity 201 is formed between the rear wall surface of the plug head 301 and the front end surface of the damping oil cylinder 4. At the same time, a second conduction cavity 202 is formed inside the damping oil cylinder 4. The first conduction cavity 201 and the second conduction cavity 202 are connected by an annular conduction pipe, and oil is disposed in the two conduction cavities and the annular conduction pipe. Meanwhile, a buffer return spring 203 is also provided between the front end face of the damping oil cylinder 4 and the rear end face of the plug head 301.

[0031] In the initial state, the aforementioned supporting piston rod 3 is pushed forward by the support of the buffer return spring 203, and first closes the connection between the valve housing 1 and the outlet pipe 103. At this time, when the water flow inside the pipeline enters the interior of the valve housing 1 from the inlet pipe 102 with a large flow rate and impact force, it will not directly collide with the connection between it and the outlet pipe 103, thus effectively preventing the pipeline from being damaged by collision. At the same time, the instantaneous impact force will push the aforementioned supporting piston rod 3 to move backward. It should be noted that the oil filling the first connecting cavity 201 and the second connecting cavity 202 does not completely fill the entire cavity, but leaves a quarter to one-third of the space. Since the two cavities are connected by an annular connecting pipe, the oil can flow between the two cavities.

[0032] When the piston rod 3 is pushed backward with a large force, the first conducting cavity 201 is compressed, causing the oil inside to be pushed into the second conducting cavity 202. When the air inside the first conducting cavity 201 has a certain pressure, the contraction of the first conducting cavity 201 can only be achieved through the flow of oil into the second conducting cavity 202. However, due to the limited radial dimension of the annular conducting pipe and the inherent viscosity and difficulty in compression of the oil, compression of the first chamber is extremely difficult under a large instantaneous impact. At this point, the oil can provide a significant supporting force to the piston rod 3 to counteract the impact of the water flow and protect the pipe.

[0033] As water continues to flow in, the force acting on the piston rod 3 in the subsequent process comes from the water pressure in the pipeline when it is in a stable state. Since this force is stable and continuous, it can push the aforementioned piston rod 3 backward at a relatively slow rate, thereby enabling the valve housing 1 and the outlet pipe 103 to enter a state of mutual conduction, ensuring the normal flow of water inside the pipeline.

[0034] As a preferred structure, refer to the appendix to the instruction manual. Figure 2 and 3The provided internal structure and enlarged structural diagram show that, to facilitate the replenishment of oil within the internal cavity, the cylinder body of the damping oil cylinder 4 is fixed to the rear end of the valve housing 1 via an external locking bolt 401 for easy replacement and adjustment. Furthermore, a guide sleeve 5 is provided between the cylinder body of the damping oil cylinder 4 and the supporting piston rod 3, and an elastic pad 501 is provided on the front end face of the guide sleeve 5 to buffer impacts. Further, to improve the stability of the valve during operation, an auxiliary support plate 6 is installed at the front of the valve housing 1.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A water hammer control valve for use in a smart water system, characterized in that: It includes a cylindrical and hollow pipe valve housing (1) and a support base (101) installed on the outside of the pipe valve housing (1). An inlet pipe (102) is connected to the front end of the pipe valve housing (1), and an outlet pipe (103) is connected to the lower rear side of the pipe valve housing (1). Inside the pipe valve housing (1) is a damping conduction mechanism (2) for resisting and mitigating the impact of water flow at the bends and connections of the pipe.

2. The waterproof hammer control valve for a smart water system according to claim 1, characterized in that: The damping conduction mechanism (2) includes a support piston rod (3) disposed inside the valve housing (1) and capable of reciprocating along the valve body direction, and a damping oil cylinder (4) located at the rear of the support piston rod (3); the support piston rod (3) includes a plug head (301) that abuts against the inner wall surface of the valve housing (1) and a rod-shaped guide part (302) connected to the rear side of the plug head (301), the rod-shaped guide part (302) passes through the damping oil cylinder (4), and a first conduction cavity (201) is formed between the rear wall surface of the plug head (301) and the front end surface of the damping oil cylinder (4), while a second conduction cavity (202) is formed inside the damping oil cylinder (4), the first conduction cavity (201) and the second conduction cavity (202) are connected by an annular conduction pipeline, and oil is provided in the two conduction cavities and the annular conduction pipeline.

3. The waterproof hammer control valve for a smart water system according to claim 2, characterized in that: A buffer return spring (203) is also provided between the front end face of the damping oil cylinder (4) and the rear end face of the plug (301).

4. The waterproof hammer control valve for a smart water system according to claim 3, characterized in that: The cylinder body of the damping oil cylinder (4) is fixed to the rear end of the valve housing (1) by the locking bolt (401) on the outside.

5. The waterproof hammer control valve for a smart water system according to claim 4, characterized in that: A guide sleeve (5) is provided between the cylinder body of the damping oil cylinder (4) and the piston rod (3), and an elastic pad (501) that can buffer the collision is provided on the front end surface of the guide sleeve (5).

6. The waterproof hammer control valve for a smart water system according to claim 5, characterized in that: An auxiliary support plate (6) is installed at the front of the valve housing (1).

Images