Water supply device for foundation pile drilling operation

Abstract

The utility model relates to a water supply device for foundation pile drilling operation, which comprises a water pump, a water storage tank, a water conveying pipe, a water injection head, a first electromagnetic valve, a second electromagnetic valve and a flow valve, a water inlet and a water outlet of the water pump are respectively connected with a common port P of the first electromagnetic valve and the second electromagnetic valve, a branch port B of the electromagnetic valve is respectively connected with a water source and the water storage tank through a water conveying pipe, and a water input channel for pumping the water source into the water storage tank is formed when the branch port B is communicated with the corresponding common port P; one branch opening A is connected with the water storage tank and the water injection head through water conveying pipes, and when the other branch opening A is communicated with the corresponding common opening P, a water output channel for water pumping of the water storage tank out of the water injection head is formed, the flow valve is arranged on the water output channel between the branch opening A of the second electromagnetic valve and the water injection head, and the water supply device can accurately control the water supply amount.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering, and in particular to a water supply device for pile drilling operations. Background Technology

[0002] With economic development and infrastructure construction, engineering projects in desert and Gobi regions are increasing, such as the construction of highways, railways, power transmission lines, communication base stations, petrochemical facilities, and new energy power plants. These projects all require reliable foundation support, and as a common and important type of foundation, the demand for their construction techniques is also increasing.

[0003] The Alashan Desert and Gobi regions mentioned above have special geological conditions, namely, aridity and gypsum and marl layers that are easily softened by water. In order to reduce the temperature of the drill bit teeth during rotary drilling, water-assisted drilling is required. However, water sources are scarce, and adding too much water during drilling will soften the gypsum and marl layers. The softened mudstone and gypsum layers stick to the drill bit, greatly reducing the drilling efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of the prior art by proposing a water supply device for accurately controlling the water supply during pile drilling operations. The specific technical solution is as follows:

[0005] A water supply device for pile drilling includes a water pump, a water storage tank, a water delivery pipe, a water injection head, a first solenoid valve, a second solenoid valve, and a flow valve. Both the first and second solenoid valves have two ports A and B, and a common port P that can be connected to one of the two ports respectively. The inlet and outlet of the water pump are connected to the common port P of the first and second solenoid valves respectively. One port B of the first and second solenoid valves is connected to a water source and the water storage tank via the water delivery pipe, forming a water input channel from the water source into the water storage tank when the port B of the first and second solenoid valves is connected to the corresponding common port P. The other port A of the first and second solenoid valves is connected to the water storage tank and the water injection head via the water delivery pipe, forming a water output channel from the water pump to the water injection head when the other port A of the first and second solenoid valves is connected to the corresponding common port P. The flow valve is located on the water output channel between port A of the second solenoid valve and the water injection head.

[0006] A further design of the above technical solution is as follows: the water input channel and the water output channel, starting from the two ports of the second solenoid valve according to the water flow direction, are connected by a water supply pipe equipped with a check valve to form a return channel.

[0007] A flow meter is installed in the water output channel between the return channel and the water injection head, and the flow meter is set after the flow valve according to the water flow direction.

[0008] The water injection head is equipped with a shut-off valve.

[0009] The flow meter is an electromagnetic flow meter and is equipped with a communication transmission unit for transmitting flow information.

[0010] The water supply device also includes a controller, which includes a signal receiving unit, a processor, and a relay. The receiving unit receives the flow information transmitted by the communication transmitting unit of the flow meter. The processor is used to calculate the water supply time once based on the flow information and the set water supply volume, and controls the working time of the water pump each time through the relay.

[0011] The present invention has the following advantages: The water supply device of the present invention realizes the control of water input and output by a single water pump through the setting of two solenoid valves, which saves equipment costs. At the same time, it is equipped with a water storage tank, which can store water in the water source area and then transport it to the foundation pile operation area for use.

[0012] The water supply device of this utility model controls the water supply through a flow valve and calculates the water pump running time through a controller, thus achieving dual control. This allows for precise control of the water supply, ensuring that the drill bit of the drilling rig receives water for lubrication and cooling, while preventing excessive water accumulation that could cause excessive softening of the gypsum and marl layers.

[0013] The water supply device of this utility model connects the water input channel and the water output channel through a return channel equipped with a check valve. This allows the water in the pipeline to flow back to the water storage tank after the water pump stops working or the flow valve is turned off, thus saving water resources. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the water supply device (water input channel) in this utility model.

[0015] Figure 2 This is a schematic diagram of the water supply device (water output channel) in this utility model.

[0016] Figure 3 This is a schematic diagram of a solenoid valve.

[0017] In the diagram: water pump 10, inlet 101, outlet 102, motor 11, relay 111, first solenoid valve 21, second solenoid valve 22, check valve 30, flow valve 31, shut-off valve 32, water pipe 41, flow meter 5, water injection head 6, water storage tank 7. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments. Example 1

[0019] This embodiment will take the water supply device for pile foundation work carried out in Tamusublag Sumu, Alashan Right Banner, western Inner Mongolia Autonomous Region as an example to further illustrate this utility model.

[0020] The water supply device in this embodiment, such as Figure 1 As shown, the system includes a water pump 10 and a water storage tank 7. The water pump 10 is driven by a motor 11. The inlet 101 and outlet 102 of the water pump 10 are respectively connected to a first solenoid valve 21 and a second solenoid valve 22. Figure 3 As shown, both the first and second solenoid valves have two ports A and B and a common port P that can be connected to one of the two ports respectively. The water pump's inlet 101 and outlet 102 are respectively connected to the common port P of the first solenoid valve 21 and the second solenoid valve 22. One port B of the first solenoid valve 21 and the second solenoid valve 22 is connected to the water source and the water storage tank 7 respectively through the water supply pipe 41. When the port B of the first solenoid valve 21 and the second solenoid valve 22 is connected to the corresponding common port P, a water input channel is formed for the water source to be pumped into the water storage tank 7. Figure 1 As shown); the other port A of the first solenoid valve 21 and the second solenoid valve 22 is connected to the water storage tank 7 and the water injection head 6 respectively through the water supply pipe 41, and when the other port A of the first solenoid valve 21 and the second solenoid valve 22 is connected to the corresponding common port P, a water output channel from the water pump of the water storage tank to the water injection head is formed ( Figure 2 (As shown). A flow valve 31 is installed on the water output channel between port A of the second solenoid valve and the water injection head. It can stop the flow after outputting a set flow rate of water in the water output channel, so as to accurately control the water supply.

[0021] The water supply device in this embodiment uses two solenoid valves to control the input and output of water by a single water pump 10, which saves equipment costs. At the same time, the water storage tank solves the problem of lack of water source and nowhere to get water when working in desert and Gobi areas. Example 2

[0022] This embodiment is a further design based on embodiment 1. Specifically, the water supply device is connected to the water input channel and the water output channel from the two branches of the second solenoid valve 22 according to the water flow direction by a water supply pipe equipped with a check valve 30. In the water output channel, from the check valve 30 to the water injection head 6, a flow valve 31 and a flow meter 5 are arranged in sequence according to the water flow direction. The shut-off valve 32 is arranged on the water injection head 6 to control the opening or closing of the water injection head 6.

[0023] In this embodiment, the flow meter 5 is an electromagnetic flow meter and is equipped with a communication transmitting unit for transmitting flow information; the water supply device also includes a controller, which includes a signal receiving unit, a processor and a relay 111 for controlling the motor 11.

[0024] The water supply device first controls the connection between the branch port B of the first solenoid valve 21 and the corresponding common port P of the second solenoid valve 22, and the water pump 10 operates to pump water from the source into the water storage tank 7. Figure 1 As shown; because a check valve 30 is installed in the water supply pipe between the water input channel and the water output channel, water cannot enter the water output channel; when water needs to be supplied to the drill bit, the branch port A of the first solenoid valve 21 and the corresponding common port P of the second solenoid valve 22 are connected, and the water pump 10 works to pump the water in the water storage tank 7 out from the water injection head 6 to supply water to the drill bit; the flow meter 5 collects the flow information, the communication transmitting unit sends the flow information to the controller, the controller receives the flow information through the signal receiving unit, and the processor calculates the water supply time based on the flow information and the water supply amount for the set drilling depth. When the water supply time is reached, the processor controls the water pump to stop working through the relay, and at the same time, the flow valve 31 collects the water supply flow and closes when the set flow is reached. Since there is still some water in the water output channel at this time, this part of the water can return to the water storage tank 7 through the water supply pipe between the water input channel and the water output channel, as shown. Figure 2 As shown.

[0025] This water supply device controls the water supply by combining the flow valve 31 with the controller to control the start time of the water pump, thereby achieving accurate control of the water supply.

[0026] The technical solutions of this utility model are not limited to the above embodiments. All technical solutions obtained by equivalent substitution fall within the scope of protection claimed by this utility model.

Claims

1. A water supply device for pile drilling operations, characterized in that: The system includes a water pump, a water storage tank, a water supply pipe, a water injection head, a first solenoid valve, a second solenoid valve, and a flow valve. Both the first and second solenoid valves have two ports A and B, and a common port P that can be connected to one of the two ports. The water pump's inlet and outlet are connected to the common port P of the first and second solenoid valves, respectively. One port B of the first and second solenoid valves is connected to a water source and a water storage tank via the water supply pipe, forming a water input channel from the water source into the water storage tank when the port B of the first and second solenoid valves is connected to the corresponding common port P. One port A of the first and second solenoid valves is connected to the water storage tank and a water injection head via the water supply pipe, forming a water output channel from the water pump to the water injection head when the port A of the first and second solenoid valves is connected to the corresponding common port P. The flow valve is located on the water output channel between port A of the second solenoid valve and the water injection head.

2. The water supply device for pile drilling operations according to claim 1, characterized in that: The water input channel and the water output channel, starting from the two ports of the second solenoid valve according to the water flow direction, are connected by a water supply pipe equipped with a check valve to form a return channel.

3. The water supply device for pile drilling operations according to claim 2, characterized in that: A flow meter is installed in the water output channel between the return channel and the water injection head, and the flow meter is set after the flow valve according to the water flow direction.

4. The water supply device for pile drilling operations according to claim 3, characterized in that: The water injection head is equipped with a shut-off valve.

5. The water supply device for pile drilling operations according to claim 4, characterized in that: The flow meter is an electromagnetic flow meter and is equipped with a communication transmission unit for transmitting flow information.

6. The water supply device for pile drilling operations according to claim 5, characterized in that: It also includes a controller, which includes a signal receiving unit, a processor, and a relay. The receiving unit receives the flow information transmitted by the communication transmitting unit of the flow meter. The processor is used to calculate the water supply time once based on the flow information and the set water supply volume, and controls the working time of the water pump each time through the relay.

Images