Construction structure of bifurcated pipe under high pressure water action

Abstract

The application discloses a bifurcated pipe structure under high-pressure water action, and belongs to the pipeline field. The bifurcated pipe structure under high-pressure water action comprises a bifurcated pipe, the bifurcated pipe is detachably connected with a connecting pipe, the bifurcated pipe can be branched from a main pipe into two branch pipes, further comprises a pressure relief pipe, a pressure reducing pipe, a pressure relief wall, a brake and a driving part, the pressure reducing pipe is provided with a sensing part in the pipe, the pressure reducing pipe extends to the ground through the upper end wall of the bifurcated pipe to release the excessive water pressure in the pipe, the pressure relief wall is made of at least a flexible or elastic material to have the ability to deform outward, so that the inner cavity of the pressure relief wall is a deformable pressure relief cavity, the brake is fixedly connected with the outer side of the pressure relief wall, the driving part is located outside the pressure relief pipe and connected with the brake to have the ability to drive the brake to move in the radial direction, and the starting conditions of the driving part at least include that the water pressure in the pressure reducing pipe is higher and / or lower than a set threshold. The bifurcated pipe connection can realize the branch pipes, pressure reduction and pressure relief in each pipe.

Description

Technical Field

[0001] This invention relates to the field of pipelines, and more specifically, to a construction branch pipe structure under high-pressure water. Background Technology

[0002] Hydropower engineering is a crucial sector within the group's industrial chain. As the scale of water conservancy projects continues to expand, more and more water diversion projects are being implemented, particularly the construction of pumping stations, which presents significant challenges in areas with complex terrain and geology. Optimal construction techniques are key to rapid pumping station construction and ensuring the safety and health of construction personnel. Organizing and deploying scientific, advanced, and rational construction techniques is fundamental to solving the problem of continuous water flow operations at pumping stations during long-distance water diversion projects.

[0003] Water conservancy and hydropower projects, such as hydropower generation and water supply, widely use reinforced concrete-lined tunnels for water conveyance. A main water conveyance pipe often needs to branch at a certain point. Branch pipes are a common structure in water conveyance tunnels, and also the most complex structure. However, the water pressure inside the pipe often changes with the seasons, so the pressure distribution and pressure resistance of existing branch pipe structures cannot perfectly achieve reasonable results. Summary of the Invention

[0004] To address the problems existing in the prior art, the purpose of this invention is to provide a method for reducing and easing pressure inside a branch pipe under high-pressure water, making the pipe wall less susceptible to damage. It can realize the reduction and easing of pressure in each branch pipe under the branch pipe connection.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A construction branch pipe structure under high-pressure water includes a branch pipe; the branch pipe is detachably connected to a connecting pipe, and the branch pipe can branch from the main pipe into two branch pipes; characterized in that it further includes a pressure-reducing pipe, a pressure-reducing pipe, a pressure-reducing wall, a braking component, and a driving component; the pressure-reducing pipe is equipped with a sensor to obtain water pressure data inside the pressure-reducing pipe; the pressure-reducing pipe is made of rigid material and extends through the upper end of the branch pipe to the ground to release excessively high water pressure inside the pipe; the pressure-reducing wall is located on the inner wall of the pressure-reducing pipe; the pressure-reducing wall is made of at least a flexible or elastic material to have the ability to deform outward, so that the inner cavity where the pressure-reducing wall is located is a deformable pressure-reducing cavity; the braking component is fixedly connected to the outer side of the pressure-reducing wall; the driving component is located outside the pressure-reducing pipe and connected to the braking component to have the ability to drive the braking component to move in the radial direction; the activation conditions of the driving component include at least: the water pressure inside the pressure-reducing pipe is higher than and / or lower than a set threshold.

[0007] Furthermore, the sensing element is a water level sensor, the braking element is a push-pull rod, and the driving element is a motor; the water level sensor is electrically connected to the control system of the external device; the motor is electrically connected to the control system of the external device; the output end of the motor is fixedly connected to the input end of the push rod; the motor receives electrical signals, enabling the push-pull rod to move in the radial direction.

[0008] Furthermore, a water pressure pipe is opened on one side of the pressure reducing pipe wall, and the water pressure pipe is connected to the pressure reducing pipe. An electrical system is provided on both sides of the water pressure pipe wall, and the two electrical systems are connected to the circuit through a sensing element.

[0009] Furthermore, the circuit system includes a power supply, a sensing element, and a driving element; the braking element is a rigid tube with a permanent magnet fixed at its upper end, and the driving element is an electromagnet; water in the water pressure pipe is in direct or indirect contact with the sensing element to apply water pressure to the sensing element; the working state of the sensing element is different when the pressure it receives is greater than or less than a set threshold.

[0010] Furthermore, the sensing element is a circuit switch, which is embedded inside the water pressure pipe. The circuit switch includes a piston, a spring, and a switch. The piston includes a piston rod and a piston head. The piston rod passes through the end of the water pressure pipe and is slidably connected to the end of the water pressure pipe in a sealed manner. The piston head is fixedly connected to one end of the piston rod near the pressure reducing pipe, and the piston head is slidably connected to the wall of the water pressure pipe in a sealed manner. The end of the piston rod away from the pressure reducing pipe is fixedly connected to the switch. The spring is sleeved on the piston rod. The end of the spring away from the pressure reducing pipe abuts against the inner side of the wall of the end of the water pressure pipe. The end of the spring near the pressure reducing pipe abuts against the piston head. Under normal conditions, the length of the spring is less than the length of the piston rod. When the water pressure in the water pressure pipe reaches a certain threshold, the piston is driven by the water pressure, causing the piston rod to move away from the pressure reducing pipe, thereby changing the opening and closing of the switch.

[0011] Furthermore, a metal-fixed dustproof, corrosion-proof, and waterproof protective cover is provided on the outside of the deformation area of ​​the pressure relief tube.

[0012] Furthermore, the walls of the branch pipe and the pressure-reducing pipe are lined with reinforced concrete between the pipe wall and the rock or soil layer to ensure the stability of the pipeline structure.

[0013] Furthermore, the power source is located on the ground and is electrically connected to the inductor and actuator to provide electrical energy.

[0014] Furthermore, the braking and driving components can also be installed on the lower side of the pressure-reducing pipe wall, so that pressure-reducing cavities are formed both above and below the pipe.

[0015] Compared with the prior art, the advantages of this invention are:

[0016] First, the design of pressure-reducing and pressure-relief pipes can better alleviate the problem of excessive water pressure inside the pipes and effectively protect the internal structure of the pipeline.

[0017] 2. When the sensing element is a sensor and the driving element is a motor, the motor receives the signal to control the push-pull rod, which deforms and resets the pressure-reducing wall. This allows the motor in the pressure-reducing tube to be controlled and detected by the sensor in the pressure-reducing tube. The threshold of water pressure is different under different pressures, and the motor operation is also different. It can be intelligently changed according to the actual water pressure.

[0018] Third, when the sensing element is a circuit switch, there is a circuit system that controls the opening and closing state of the circuit system through the switch, thereby changing the magnetism of the driving element electromagnet to brake the permanent magnet to deform and reset the pressure relief wall. When the water pressure in the pressure relief tube is too high, it pushes the piston to trigger the opening and closing state of the sensing element, realizing intelligent control of pressure reduction and relief by the magnet. This is lower in cost and more effective. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall planar structure of the pipeline of the present invention;

[0020] Figure 2 This is a side sectional view of the branch pipe and pressure reducing pipe of the present invention.

[0021] Figure 3 This is a schematic diagram of the planar structure of the motor-controlled pressure-reducing wall of the present invention when it is not contracted;

[0022] Figure 4 This is a schematic diagram of the planar structure of the motor-controlled repressurized wall during the contraction of the present invention;

[0023] Figure 5 This is a schematic diagram of the water pressure pipe structure inside the branch pipe and pressure reducing pipe of the present invention;

[0024] Figure 6 This is a schematic diagram of the planar structure of the magnet-controlled pressure-reducing wall when it does not shrink, according to the present invention;

[0025] Figure 7 This is a schematic diagram of the planar structure of the magnet-controlled contraction of the pressure-reducing wall according to the present invention;

[0026] Figure 8 This is a schematic diagram of the circuit system structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the internal circuit switch of the water pressure pipe according to the present invention.

[0028] Explanation of the labels in the diagram:

[0029] Branch pipe 1, pressure reducing pipe 11, sensing element 12, pressure easing pipe 2, pressure easing inner wall 21, pressure easing wall 22, braking element 23, driving element 24, reinforced concrete lining 3, power supply 4. Implementation

[0030] Specific Embodiment 1: In this specific embodiment, the sensing element 12 is a water level sensor, the braking element 23 is a push-pull rod, and the driving element 24 is a motor.

[0031] Please see Figures 1-4 A construction branch pipe structure under high-pressure water action includes a branch pipe 1, a pressure-reducing pipe 2, and a reinforced concrete lining 3. One end of the branch pipe 1 is detachably connected to a connecting pipe; the pressure-reducing pipe 2 is detachably connected to both the branch pipe 1 and the connecting pipe.

[0032] A pressure reducing pipe 11 is provided in the middle of the upper part of the inner wall of the branch pipe 1. A sensing element 12 is provided inside the pressure reducing pipe 11. The pressure reducing pipe 11 is made of rigid material and is a hollow pipe. The pipe wall of the pressure reducing pipe 11 is reinforced with concrete lining 3 to ensure the pressure resistance of the pipe wall. The pressure reducing pipe 11 is located in the middle of the inner wall of the branch pipe 1. The pressure reducing pipe 11 extends through the pipe wall to the ground so that when the water pressure is too high, some water can be discharged through the pressure reducing pipe 11.

[0033] The sensor 12 is located at the upper end of the inner wall of the pressure reducing pipe 11 to obtain water level information. The sensor 12 is fixedly connected to the pressure reducing pipe 11. The sensor 12 is equipped with a fixed water level standard threshold. When the water level exceeds the water level standard threshold, a pull rod signal is issued. When the water level drops below the water level standard threshold, a push rod signal is issued.

[0034] The pressure-reducing pipe 2 is provided with a pressure-reducing inner wall 21 and a pressure-reducing wall 22. The pressure-reducing inner wall 21 is located on the inner wall of the deformation section of the pressure-reducing pipe 2. The pressure-reducing inner wall 21 is made of rigid material and is arched in shape, which provides good pressure resistance. The pressure-reducing wall 22 is made of deformable elastic plastic material. When subjected to water pressure, the pressure-reducing wall 22 can completely adhere to the pressure-reducing inner wall 21. When the pressure-reducing wall 22 is completely adhered to the pressure-reducing inner wall 21, a pressure-reducing cavity is formed between the pressure-reducing inner wall 22 and the pipe, allowing the pipe to expand locally and achieve a pressure reduction effect. When the pressure-reducing wall 22 is not subjected to water pressure, the pressure-reducing wall 22 is pleated and its position is consistent with the pipe wall of the pressure-reducing pipe 2. The pressure-reducing wall 22 is fixedly connected to the pipe wall of the pressure-reducing pipe 2.

[0035] The brake element 23 is vertically installed through the pipe wall. The head of the brake element 23 is fixedly connected to the middle of the pressure-relieving wall 22. In the absence of water pressure, it can push the pressure-relieving wall 22 back to the same height as the pipe wall. The sensor 12 is electrically connected to the external control system, and the drive element 24 is also electrically connected to the external control system. The output end of the drive element 24 is fixedly connected to the input end of the brake element 23. The drive element 24 receives drive signals, enabling the brake element 24 to move radially. The brake element 23 is covered with a dustproof, corrosion-proof, and waterproof protective sleeve to ensure normal operation.

[0036] The reinforced concrete lining 3 is located between the inner wall of the overall pipeline and the rock or soil layer. The reinforced concrete lining 3 is a conventional technology in this field and will not be described in detail again.

[0037] Power source 4 is located on the ground and is electrically connected to drive unit 24 to provide electrical power.

[0038] Working principle: Groundwater is introduced into the pipe. When the water pressure inside the pipe rises, the water level in the pressure-reducing pipe 11 is used to determine the pressure level. If the water level is too high, exceeding the standard level by a significant margin, some water can be discharged through the pressure-reducing pipe 11 itself to reduce pressure. Simultaneously, the sensor 12 sends a drive signal, which is received by the drive component 24. This causes the pressure-reducing wall 22 to adhere to the pressure-reducing inner wall 21 under the influence of water pressure and the braking component 23, forming a pressure-reducing cavity and thus lowering the water pressure inside the pipe. When the water pressure returns to normal, the sensor 12 sends a drive signal again, which is received by the drive component 24. This triggers the braking component 23 to push the pressure-reducing wall 22, which is attached to the pressure-reducing inner wall 21, back to its initial state.

[0039] Specific Implementation Example 2: Unlike Specific Implementation Example 1, please refer to... Figures 5-9 In this specific embodiment, the sensing element 12 is a circuit switch, the braking element 23 is a rigid rod with a permanent magnet fixed at the upper end, and the driving element 24 is an electromagnet.

[0040] A sensing element 12 is installed inside the pressure-reducing pipe 11. A water pressure pipe is opened on one side of the pipe wall of the pressure-reducing pipe 11, and the end of the water pressure pipe is closed. The sensing element 12 is embedded in the water pressure pipe. The circuit switch includes a piston, a spring, and a switch. The piston includes a piston rod and a piston head. The piston rod passes through the end of the water pressure pipe and is slidably connected to the end of the water pressure pipe in a sealed manner. The piston head is fixedly connected to one end of the piston rod near the pressure-reducing pipe 11, and the piston head is slidably connected to the wall of the water pressure pipe in a sealed manner. The end of the piston rod away from the pressure-reducing pipe 11 is fixedly connected to the switch. The spring is sleeved on the piston rod. The end of the spring away from the pressure-reducing pipe 11 abuts against the inner side of the wall of the end of the water pressure pipe. The end of the spring near the pressure-reducing pipe 11 abuts against the piston head. Under normal conditions, the length of the spring is less than the length of the piston rod. When the water pressure in the water pressure pipe reaches a certain threshold, the piston is driven by the water pressure, causing the piston rod to move away from the pressure-reducing pipe 11, thereby changing the opening and closing of the switch. The circuit switch is embedded in the water pressure pipe, and the outside of the water pressure pipe wall is equipped with a circuit system. The circuit system is connected to the circuit through the sensing element 12.

[0041] The braking element 23 is vertically installed through the pressure-relieving inner wall 21, and the braking element 23 is slidably connected to the pressure-relieving inner wall 21. One end of the braking element 23 is fixedly connected to the middle of the pressure-relieving wall 22.

[0042] The outer side of the deformation point of the pressure relief tube 2 is provided with a metal fixed protective cover. The driving component 24 is located inside the protective cover in the vertical direction of the braking component 23 and is at the working distance where magnetic repulsion and magnetic attraction can be exerted.

[0043] The power source 4 is located on the ground and is electrically connected to the inductor 12 and the drive unit 24 to provide electrical energy.

[0044] like Figure 5 As shown, a circuit system is installed at the drive unit 24. This circuit is connected in series. The positive terminal of the power supply 4 is connected to one end of the sensor 12 via a wire, and the other end of the sensor 12 is connected to one end of the drive unit 24 via a wire. The other end of the drive unit 24 is connected to the negative terminal of the power supply 4. The sensor 12 is a break point. When the water pressure is too high, the water pressure pushes the sensor 12, breaking the circuit. When the water pressure is not high, the water level does not reach the position to push the sensor 12, and there is insufficient water pressure to push the sensor 12. The sensor 12 returns to its original position through the deformation of its own spring, reconnecting the circuit.

[0045] Working principle: Groundwater is introduced into the pipe. When the water pressure rises, the pressure-reducing pipe 11 determines the water pressure level. If the water level is too high and exceeds the standard level by a significant margin, some water can be discharged through the pressure-reducing pipe 11 itself to reduce pressure. Simultaneously, the water pressure pushes the sensing element 12, causing the circuit to break. After the driving element 24 is de-energized, it becomes a regular magnet. Both the driving element 24 and the braking element 23 have magnetic attraction, causing the driving element 24 to attract the braking element 23. This causes the pressure-reducing wall 22 to adhere to the inner pressure-reducing wall 21 through the water pressure and the attraction of the driving element 24 to the braking element 23, forming a pressure-reducing cavity and thus reducing the water pressure in the pipe. When the water pressure returns to normal, the sensing element 12 deforms through its own spring to return to its original position, and the circuit is reconnected. This energizes the driving element 24, changing the magnetic attraction to magnetic repulsion. The driving element 24 uses magnetic repulsion to push the braking element 23 back to its original position, and the braking element 23 pushes the pressure-reducing wall 22 back to its original position.

Claims

1. A branch pipe structure for construction under high-pressure water action, comprising a branch pipe (1); the branch pipe (1) is detachably connected to a connecting pipe, and the branch pipe (1) can branch from the main pipe into two branch pipes; characterized in that: It also includes a pressure-reducing pipe (2), a pressure-reducing pipe (11), a pressure-reducing wall (22), a braking component (23), and a driving component (24); the pressure-reducing pipe (11) is equipped with a sensor (12) to obtain water pressure data in the pressure-reducing pipe (2); the pressure-reducing pipe (11) is made of rigid material and extends through the upper end of the branch pipe (1) to the ground to release excessively high water pressure in the pipe (1); the pressure-reducing wall (22) is located on the inner wall of the pressure-reducing pipe (2); the pressure-reducing wall (22) extends to the ground. The pressure relief wall (22) is made of a flexible or elastic material to have the ability to deform outward, so that the inner cavity of the pressure relief wall (22) is a deformable pressure relief cavity; the brake (23) is fixedly connected to the outside of the pressure relief wall (22); the drive (24) is located outside the pressure relief pipe (2) and connected to the brake (23) to have the ability to drive the brake (23) to move in the radial direction; the starting conditions of the drive (24) include at least: the water pressure in the pressure relief pipe (2) is higher than and / or lower than a set threshold.

2. The construction branch pipe structure under high-pressure water action according to claim 1, characterized in that: The sensing element (12) is a water level sensor, the braking element (23) is a push-pull rod, and the driving element (24) is a motor; the water level sensor is electrically connected to the control system of the peripheral device; the motor is electrically connected to the control system of the peripheral device; the output end of the motor is fixedly connected to the input end of the push rod; the motor receives electrical signals, so that the push-pull rod can move in the radial direction.

3. The construction branch pipe structure under high-pressure water action according to claim 1, characterized in that: A water pressure pipe is opened on one side of the pressure reducing pipe (11), and the water pressure pipe is connected to the pressure reducing pipe (11). An electrical system is provided on the outside of the water pressure pipe wall, and the electrical system is connected to the circuit through the induction element (12).

4. The construction branch pipe structure under high-pressure water action according to claim 3, characterized in that: The circuit system includes a power supply, a sensing element (12), and a driving element (24); the braking element (23) is a rigid tube with a permanent magnet fixed at the upper end, and the driving element (24) is an electromagnet; the water in the water pressure pipe comes into direct or indirect contact with the sensing element (12) to apply water pressure to the sensing element (12); the working state of the sensing element (12) is different when the pressure it receives is greater than or less than a set threshold.

5. The construction branch pipe structure under high-pressure water action according to claim 4, characterized in that: The sensing element (12) is a circuit switch, which is embedded in the water pressure pipe. The circuit switch includes a piston, a spring, and a switch. The piston includes a piston rod and a piston head. The piston rod passes through the end of the water pressure pipe and is slidably connected to the end of the water pressure pipe in a sealed manner. The piston head is fixedly connected to one end of the piston rod near the pressure reducing pipe (11), and the piston head is slidably connected to the wall of the water pressure pipe in a sealed manner. The end of the piston rod away from the pressure reducing pipe (11) is fixedly connected to the switch. The spring is sleeved on the piston rod body. The end of the spring away from the pressure reducing pipe (11) abuts against the inner side of the wall of the end of the water pressure pipe. The end of the spring near the pressure reducing pipe (11) abuts against the piston head. Under normal conditions, the length of the spring is less than the length of the piston rod body. When the water pressure in the water pressure pipe reaches a certain threshold, the piston is driven by the water pressure, causing the piston rod to move away from the pressure reducing pipe (11) to change the opening and closing of the switch.

6. The construction branch pipe structure under high-pressure water action according to claim 1, characterized in that: The outer side of the deformation point of the pressure relief pipe (2) is provided with a metal fixed dustproof, corrosion-proof and waterproof protective cover.

7. The construction branch pipe structure under high-pressure water action according to claim 1, characterized in that: The pipe walls of the branch pipe (1) and the pressure relief pipe (2) are provided with reinforced concrete lining (3) between the pipe walls and the rock or soil layers to ensure the stability of the pipeline structure.

8. The construction branch pipe structure under high-pressure water action according to claim 1, characterized in that: The power source (4) is located on the ground and is electrically connected to the inductor (12) and the drive (24) to provide electrical energy.

9. The construction branch pipe structure under high-pressure water action according to claim 1, characterized in that: The braking component (23) and the driving component (24) are provided on the lower side of the pressure relief pipe (2) so that pressure relief cavities are formed both above and below the pipe.

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