CN209443457U - Vacuum preloading drainage device with control function - Google Patents

Abstract

The utility model discloses a vacuum preloading drainage device with a control function, which comprises a water storage tank and a control device; the bottom of the water storage tank is installed with a horizontal pipe network connected to an underground water body; and the horizontal The pipe network is also provided with a check solenoid valve; the check solenoid valve is connected with the control device; and the inner lower end of the water storage tank is also equipped with a first liquid level switch, and the inner upper end of the water storage tank is correspondingly installed with a second liquid level switch. Level Switch. This device can transmit data to the PC equipment in the computer room by setting a wireless transmission module on the control device, and the staff in the computer room can monitor and control the operation process of the whole device in real time, and upload the data to complete the storage record. The overall device has a reasonable structure and ingenious design. It adopts a single pump body structure, which saves costs, and realizes the process of reciprocating automatic pre-pressurization and drainage and remote monitoring and control, which is very convenient to use.

Description

A Vacuum Preloading Drainage Device with Control Function

technical field

The utility model relates to the technical field of equipment used for vacuum preloading soft soil foundation reinforcement, in particular to a vacuum preloading drainage device with a control function.

Background technique

It is widely used in the pumping and drainage device of "vacuum preloading soft soil foundation reinforcement method" in foundation treatment engineering. There are two kinds of structural devices in the market, one is the early device that directly uses water pumps to pump water for drainage; the other is Water vapor separation pumping and drainage device.

In the early water pumping and drainage devices, water and air enter the pump at the same time, without water and air separation. During vacuum preloading construction, the water in the pump enters the air, resulting in a decrease in pumping efficiency and an increase in energy consumption, which directly leads to the failure of the pump. The loss is serious.

The water-gas separation vacuum preloading method uses a vacuum pump and a water pump together, which improves the work efficiency compared with the old-fashioned water pump direct pumping method; but the technical difficulty of this device lies in the vacuum in the water-gas separation tank. For drainage under negative pressure, it is necessary to use a negative pressure water pump with excellent performance to achieve effective drainage. However, there is a big gap in the ability of domestic negative pressure water pumps to overcome vacuum negative pressure, and the use of high-performance imported products will increase a large equipment cost.

Utility model content

The purpose of this utility model is to provide a vacuum preloading drainage device with a control function for the deficiencies in the prior art, and its technical scheme is as follows:

A vacuum preloading drainage device with a control function, including a water storage tank and a control device; the bottom of the water storage tank is equipped with a horizontal pipe network connected to the groundwater body; and the horizontal pipe network is also set There is a check solenoid valve; the check solenoid valve is connected to the control device; and the inner lower end of the water storage tank is also equipped with a first liquid level switch, and the inner upper end of the water storage tank is correspondingly equipped with a second liquid level switch; The first liquid level switch and the second liquid level switch are connected with the control device; and the upper end of the water storage tank is also equipped with a vacuum pump communicating with the inside of the water storage tank; and when the vacuum pump communicates with the water storage tank The pipeline is provided with a pump body electromagnetic valve, and the pump body electromagnetic valve is connected with the control device; the lower end of the water storage tank is also provided with a water outlet channel, and the water outlet channel is also equipped with a water outlet electromagnetic valve, and the water outlet electromagnetic valve is also corresponding It is connected with the control device; and the upper end of the water storage tank is also provided with an air intake channel, and the air intake channel is also provided with an air intake solenoid valve, and the said air intake solenoid valve is connected with the control device; the said The control device is also provided with a wireless transmission module, and the control device is connected with the PC equipment in the computer room through the provided wireless transmission module.

Preferably, the air intake passage is arranged above the second liquid level switch.

Preferably, the water outlet channel is arranged below the first liquid level switch.

Preferably, the control device is configured as a PLC control cabinet, and a control panel is arranged on the PLC control cabinet.

Preferably, the wireless transmission device is set to 3G or 4G network transmission, or wireless router transmission.

Beneficial effects: the utility model has the following beneficial effects: only one vacuum pump and multiple sets of electromagnetic valves are set in the device, and the process of vacuuming water suction and pre-pressurization drainage can be effectively completed through the switch cooperation of each electromagnetic valve. When connected to the horizontal pipe network, the vacuum pump will pump the water in the underground horizontal pipe network into the tank, and the vacuum pump in this device will not stop working, just close the connection between the vacuum pump and the tank by controlling the valve of the pump body , and the vacuum pump is in the no-load state at this time, and then open the water outlet electromagnetic valve of the water outlet channel, so that the water in the tank will automatically drain after the pressure is restored, and the device also sets an air inlet channel with an air inlet electromagnetic valve installed on the upper end of the tank. , the recovery of the air pressure in the tank can be significantly improved through the air inlet pipe, and the automatic drainage process in the tank can be accelerated, thereby completing the automatic drainage process of groundwater; Cooperating with the reciprocating automatic pre-pressurization drainage process, and the single vacuum pump in this device does not stop during the overall circulation process, and is in a working state all the time, which is conducive to quickly entering the vacuum state during the circulation drainage process, increasing Work efficiency, and reduce the probability of failure of the vacuum pump, prolong its service life; and this device can transmit data to the PC equipment in the computer room by setting a wireless transmission module on the control device, and the staff in the computer room can monitor and control the whole device in real time Run the process, upload the data, and complete the storage record. The overall device has a reasonable structure and ingenious design. It adopts a single pump body structure, which saves costs, and realizes the process of reciprocating automatic pre-pressurization and drainage and remote monitoring and control, which is very convenient to use.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, further clarifies the utility model, and this embodiment implements under the premise of the technical solution of the utility model, and it should be understood that these examples are only used to illustrate the utility model and are not intended to limit the utility model range.

As shown in Figure 1, a vacuum preloading drainage device with a control function includes a water storage tank 1 and a control device 2; the bottom of the water storage tank 1 is equipped with a horizontal pipe network 3 connected to an underground water body; And the horizontal pipe network 3 is also provided with a non-return solenoid valve 4; the non-return solenoid valve 4 is connected to the control device 2; and the inner lower end of the water storage tank 1 is also equipped with a first liquid level switch 5. The upper end of the inner side of the water storage tank 1 is correspondingly equipped with a second liquid level switch 6; the first liquid level switch 5 and the second liquid level switch 6 are connected to the control device 2; and the water storage tank 1 The upper end is also equipped with a vacuum pump 7 communicating with the water storage tank 1; and a pump electromagnetic valve 8 is provided on the pipeline that the vacuum pump 7 communicates with the water storage tank 1, and the pump electromagnetic valve 8 is connected to the control device 2; The lower end of the water storage tank 1 is also provided with a water outlet channel 9, and the water outlet solenoid valve 10 is also installed on the water outlet channel 9, and the water outlet solenoid valve 10 is also connected to the control device 2 correspondingly; and the upper end of the water storage tank 1 An intake passage 11 is also provided, and an intake solenoid valve 12 is also provided on the intake passage 11, and the said intake solenoid valve 12 is connected to the control device 2; the control device 2 is also provided with a wireless The transmission module 13, and the control device 2 is connected to the PC equipment 14 in the computer room through the wireless transmission module 13 provided.

The air inlet channel 11 is set above the second liquid level switch 6; the water outlet channel 9 is set below the first liquid level switch 5; the control device 2 is set as a PLC control cabinet, and the PLC controls A control panel is provided on the cabinet; the wireless transmission device is set to 3G or 4G network transmission, or wireless router transmission.

The overall use process of this device is as follows:

(1) When the tank is in an anhydrous and empty state, the water level in the tank should be below the first liquid level switch; and the vacuum pump in this device is always in working condition

(2) When the water level is below the first liquid level switch, the control device controls the water outlet solenoid valve and the intake solenoid valve to be in the closed state, while the check solenoid valve on the horizontal pipe network is in the open state, and controls the pump connected to the vacuum pump When the body valve is opened, the vacuum pump vacuumizes the inside of the water storage tank, and the water-air mixture in the underground horizontal pipe network will continuously flow into the tank until the water level in the tank reaches the second liquid level switch. ;

(3) When the water level reaches the second liquid level switch, the second liquid level switch is triggered to communicate with the control device. The control device first controls the pump valve between the vacuum pump and the tank to close, and cuts off the vacuuming between the vacuum pump and the tank. At the same time, the check solenoid valve on the horizontal pipe network is controlled to close, so that the tank body is in a sealed and closed state; then the water outlet solenoid valve on the water outlet pipe is opened, and after the water outlet solenoid valve is opened, the tank body begins to gradually return to normal air pressure , but because the water outlet channel is set at the bottom, on the one hand, it needs to complete the air intake to restore the internal air pressure, and on the other hand, it needs to release water to the outside, so the water flow is relatively slow. After the valve, air enters the tank immediately, and the positive pressure is restored, the water body is discharged from the outlet pipe, and the water level in the tank gradually drops; the drainage efficiency in the tank is increased by setting it in this way;

(4) When the water level in the tank drops below the first liquid level switch, both the outlet solenoid valve and the intake solenoid valve are triggered to close, while the check solenoid valve on the horizontal pipe network and the pump used to connect the vacuum pump and the tank The body valve will be opened, because the vacuum pump is always in the no-load state, when the pump body valve is opened, it will immediately enter the working state, vacuumize the water storage tank, reduce the time for vacuum pump warm-up, etc., which can effectively increase work efficiency and eliminate The vacuum pump should always be in the cycle state of opening and closing to reduce the probability of failure; after the vacuum pump pumps the water-vapor mixture in the horizontal pipe network into the tank, it can complete the work of vacuum preloading and automatic drainage of groundwater in a cycle.

Only one vacuum pump and multiple sets of solenoid valves are installed in this device, and the process of vacuuming, water absorption and pre-pressurization drainage can be effectively completed through the switch cooperation of each solenoid valve. Vacuum, pump the water in the underground horizontal pipe network into the tank, and the vacuum pump in this device does not stop working, just close the connection between the vacuum pump and the tank by controlling the valve of the pump body, and the vacuum pump is in the no-load state at this time, then Then open the water outlet electromagnetic valve of the water outlet channel, so that the water in the tank will automatically drain after the pressure is restored, and this device is also provided with an air inlet channel with an air inlet solenoid valve installed on the upper end of the tank body. The recovery of air pressure will speed up the process of automatic drainage in the tank, thereby completing the process of automatic drainage of groundwater; and the device can realize the reciprocating automatic pre-pressurization drainage process by setting two liquid level switches and the cooperation of the liquid level switch control device , and the single vacuum pump in the device does not stop during the overall cycle process, and is in a state of constant work, which is conducive to quickly entering the vacuum state during the cycle of drainage, increasing work efficiency, and reducing the probability of failure of the vacuum pump. Extend its service life; and this device can transmit data to the PC equipment in the computer room by setting a wireless transmission module on the control device, and the staff in the computer room can monitor and control the operation process of the entire device in real time, and upload the data to complete the storage record. The overall device has a reasonable structure and ingenious design. It adopts a single pump body structure, which saves costs, and realizes the process of reciprocating automatic pre-pressurization and drainage and remote monitoring and control, which is very convenient to use.

The above-mentioned specific implementation is only a preferred embodiment of the utility model, and is not used to limit the implementation of the utility model and the scope of claims. All equivalent changes and Modifications should be included in the scope of the utility model patent application.

Claims (5)

1. A vacuum preloading drainage device with control function, characterized in that: it comprises a water storage tank (1) and a control device (2); the bottom of the described water storage tank (1) is equipped with a The horizontal pipe network (3); and the said horizontal pipe network (3) is also provided with a check solenoid valve (4); the check solenoid valve (4) is connected with the control device (2); and said The inner lower end of the water storage tank (1) is also equipped with a first liquid level switch (5), and the inner upper end of the water storage tank (1) is correspondingly equipped with a second liquid level switch (6); The switch (5) and the second liquid level switch (6) are connected to the control device (2); and the upper end of the water storage tank (1) is also equipped with a vacuum pump (7) communicating with the inside of the water storage tank (1) ; And on the pipeline that this vacuum pump (7) communicates with water storage tank (1), be provided with pump body electromagnetic valve (8), and this pump body electromagnetic valve (8) links to each other with control device (2); Said water storage The lower end of the tank (1) is also provided with a water outlet channel (9), and the water outlet channel (9) is also equipped with a water outlet solenoid valve (10), and the water outlet solenoid valve (10) is also correspondingly connected to the control device (2); and The upper end of the water storage tank (1) is also provided with an air intake passage (11), and an air intake solenoid valve (12) is also provided on the air intake passage (11), and the air intake solenoid valve (12) ) is connected with the control device (2); the control device (2) is also provided with a wireless transmission module (13), and the described control device (2) communicates with the computer room PC equipment through the wireless transmission module (13) provided (14) CONNECTED. 2. A vacuum preloading drainage device with control function according to claim 1, characterized in that: said air intake passage (11) is arranged above the second liquid level switch (6). 3. The vacuum preloading drainage device with control function according to claim 1, characterized in that: the water outlet channel (9) is arranged below the first liquid level switch (5). 4. A vacuum preloading drainage device with control function according to claim 1, characterized in that: the control device (2) is set as a PLC control cabinet, and the PLC control cabinet is provided with a control panel. 5. A vacuum preloading drainage device with control function according to claim 1, characterized in that: the wireless transmission device is set to 3G or 4G network transmission, or wireless router transmission.