CN111946634A - Amphibious pressurizing water taking pump and pressurizing pump vehicle - Google Patents

Abstract

The invention relates to an amphibious booster intake pump and a booster pump truck. The amphibious booster intake pump comprises a controller, a pump body and a drive motor, and a water outlet of the pump body is provided with a one-way valve and a liquid level sensor. The drive motor is provided with a current sensor for detecting the current value of the drive motor, and the pump body is provided with a vacuum water pump, which is used to evacuate the air in the pump body to form a negative pressure in the pump body and pump liquid to cool the drive motor. The vacuum water pump is connected with an inlet. The pipe and the outlet pipe, the inlet pipe is connected with the pump body, the outlet pipe is used as a cooling pipe and is wound on the casing of the drive motor, the liquid level sensor, current sensor, switch, and drive motor are connected with the signal of the controller, and the controller is used to receive the liquid level sensor. , The detection signal of the liquid level sensor is compared and calculated, and the driving motor and the switch are controlled to perform corresponding actions according to the comparison and calculation results. The invention has short deployment time, improves emergency rescue efficiency, ensures the life of the water pump and reduces the accident rate.

Description

Amphibious booster pump and booster pump truck

technical field

The invention belongs to the technical field of water pumps, and in particular relates to an amphibious booster water intake pump and a booster pump truck.

Background technique

Existing pumps can be divided into submersible pumps and pumps generally installed above the liquid level according to whether the motor can be immersed in water. The submersible pump is an important equipment for deep well water extraction. It extracts groundwater to the surface. It is an indispensable pumping equipment for domestic water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, and ship load regulation. Pumps generally installed above the liquid level, such as centrifugal pumps, will vaporize water when the atmospheric pressure and water pressure drop to a certain value and the pump will not be able to absorb water. The suction head of a general centrifugal pump will not exceed nine Meter. At the same time, the pump unit cannot be immersed in water.

In disaster relief work, the pump may need to be installed in the water to take water, or it may be flexibly installed and applied in some places that are inconvenient to install in the water, and it needs to be installed on land to extract water. In addition, in order to ensure the rescue efficiency, it is sometimes necessary to apply It is used in the long-distance water pipeline system, and in the rescue activities, there are too many uncertain factors and the site environment is complex, so the water pump carried is preferably amphibious, which can not only save costs, but also improve the rescue efficiency.

To sum up, there is an urgent need to provide a booster pump that can be used both on water and land and can also be used as a booster pump, and a booster pump truck including the aforementioned booster pump.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a booster pump truck that can be used both on water and land and can be used as a booster pump, including the booster pump.

The above purpose is achieved through the following technical solutions: an amphibious booster water intake pump, comprising a controller, a pump body and a drive motor that drives an impeller of the pump body to rotate, and a water outlet of the pump body is provided with a one-way valve and a liquid level sensor, the liquid level sensor is arranged on the inner side of the one-way valve, the driving motor is provided with a current sensor for detecting the current value of the driving motor, the pump body is provided with a vacuum water pump, and the vacuum water pump is Air and liquid dual-purpose pump, the vacuum water pump is used for pumping the air in the pump body to form a negative pressure in the pump body and pumping the liquid to realize the cooling of the driving motor. , the vacuum water pump is connected with an inlet pipe and an outlet pipe, the inlet pipe is communicated with the pump body, and the outlet pipe is wound on the casing of the driving motor as a cooling pipe and is connected with the amphibious booster. The outside of the water pump is communicated, and the outlet pipe is arranged in multiple circles along the driving motor. The liquid level sensor, current sensor, switch, and driving motor are signally connected to the controller, and the controller is used to receive the liquid level. The detection signals of the sensor and the liquid level sensor are compared and calculated, and the driving motor and the switch are controlled to perform corresponding actions according to the comparison and calculation results.

In the specific application process, the liquid level sensor detects the liquid level in the pump body and sends the liquid level information to the controller. The controller receives the liquid level information for comparison and calculation and determines whether the pump body is full of water. If it is, it is in the water working state. Control the drive motor to work, drive the impeller to rotate to do work, the water enters from the water inlet of the pump body, and flows through the one-way valve along the water flow channel of the pump body under the action of centrifugal force, and then flows out from the water outlet, otherwise it is in the land working state, and the controller controls the vacuum pump to pump The air in the pump body is discharged to form a vacuum inside the pump body. Under the action of atmospheric pressure, the water at the water source flows into the pump along the suction pipe, and the controller receives the liquid level information transmitted by the liquid level sensor for comparison and processing to determine whether the pump body is full of water. When it is full of water, it controls the drive motor to work.

When it is used as a booster pump on land, when it is monitored that the inlet pressure of the amphibious booster intake pump as a booster pump reaches a predetermined value, the controller controls to start the amphibious booster intake pump at a low speed, and continues to monitor the amphibious booster intake pump. The pressure value and water flow of the water outlet of the booster pump, according to the increase in flow and pressure, adjust the speed of the water intake pump and the amphibious booster pump as a booster pump until it is used as a booster pump amphibious. The water outlet of the booster intake pump reaches a predetermined water flow and pressure. When used as a booster pump on land, the pump needs to meet the stable outlet pressure for a long time under the full range of zero flow to rated flow, so as to ensure the use requirements of the terminal. For example, when the pump is at zero flow, the water in the pump does not flow. , and the water pump is still working, the motor current will continue to rise at this time, the current sensor detects the current value of the driving motor and transmits the detected current information to the controller, and the controller receives the current information for comparison and calculation, when the current value of the driving motor reaches When the preset maximum value is reached, the controller controls the vacuum water pump to extract water from the pump body to cool the drive motor until the current of the drive motor stabilizes at the preset current value. This can ensure the normal operation of the drive motor, and the pressure water flows through the motor casing to take away the heat of the motor, so that the current of the drive motor is stabilized at a lower value. When the current is reduced to the set minimum value, the vacuum pump stops working, and this method ensures that the current of the booster pump used on land is stable.

The drive motor is a high-speed permanent magnet variable frequency motor, which can realize stepless speed change within the frequency conversion range of 0 to 227HZ, and has the advantages of small size, light weight and high efficiency; Good advantage; the one-way valve is normally closed. When the pump is pumping water, the one-way valve is opened by the pressure of the water in the pump, and the water can flow out from the water outlet. When the pump stops working, the one-way valve automatically resets and closes.

A further technical solution is that the inlet pipe includes a liquid inlet pipe and an air inlet pipe, and the vacuum water pump performs water suction to cool the drive motor and suction through the liquid inlet pipe and the air inlet pipe respectively to form a negative pressure in the pump body, and the liquid inlet The pipe is connected with the pump body at the water inlet of the pump body, and the air inlet pipe is connected with the pump body at the water outlet of the pump body. In this way, the cooling water intake is arranged at the water inlet of the pump body, where the water temperature is relatively low, and the air suction port is arranged at the water outlet of the pump body, which is conducive to vacuuming the pump body.

A further technical solution is that a floating body is provided at one end of the amphibious booster intake pump where the driving motor is provided, and the floating body is fixedly connected with the pump body. When the pump is submerged, the buoyancy of the floating body can make the pump float.

A further technical solution is that the floating body includes a first split body and a second split body, an accommodating space is formed between the first split body and the second split body, and the vacuum water pump is arranged in the accommodating space. and fixedly connected with the drive motor. In this way, the present invention has a more compact structure and a more reasonable design.

A further technical solution is that the amphibious pressurized water intake pump is provided with traveling wheels. Preferably, the amphibious booster intake pump is equipped with 4 wheels for moving the pump, which can be easily moved on flat roads.

The water pump is an amphibious pump and can be used in a variety of working conditions. Often in the case of emergency rescue in a dangerous situation, the water intake truck needs to obtain water from the nearest location. The shorter the deployment time, the better, and the water source becomes the deployment time. The key to this is that the amphibious pump can be used in a variety of working conditions, and can quickly meet the water intake requirements according to the on-site water source conditions.

In order to achieve the above purpose, the present invention also provides a booster pump truck, including a drainage rescue vehicle and any of the above-mentioned amphibious booster water intake pumps, wherein the amphibious amphibious booster water intake pump is arranged in the drainage rescue vehicle. inside the car's compartment.

The booster pump truck of the present invention carries the above-mentioned amphibious booster intake pump, which can be used under various working conditions, and can obtain water nearby in case of emergency rescue in case of danger, the deployment time is short, and the long-term maintenance Pressurized water supply to ensure quick drainage in a short time.

A further technical solution is that pressure gauges are provided on both sides of the inlet and outlet of the amphibious pressurized intake pump.

Compared with the prior art, the present invention can be used under various working conditions, quickly realize the water intake requirements according to the on-site water source conditions, shorten the deployment time, and improve the emergency rescue efficiency; When the zero flow is turned on to the rated flow, the heat of the driving motor is taken away by the continuous water flow, and the current of the driving motor is reduced, which ensures the stability of the current used by the booster pump on land, ensures its life and reduces the accident rate.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

1 is a schematic diagram of the internal structure of an amphibious pressurized intake pump according to an embodiment of the present invention (the arrow in the figure indicates the direction of water flow);

FIG. 2 and FIG. 3 are respectively schematic diagrams of the application of an amphibious booster intake pump according to an embodiment of the present invention;

FIG. 4 and FIG. 5 are respectively schematic diagrams of application of a booster pump truck according to an embodiment of the present invention.

In the picture:

1 Pump body 2 Drive motor 3 Impeller 4 Check valve

5 Liquid level sensor 6 Water outlet 7 Water inlet 8 Vacuum pump

9 Outlet pipe 10 Liquid inlet pipe 11 Intake pipe 12 Float

13 Walking wheels 14 Water pipes 15 Amphibious booster pump 16 carriages

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. In addition, according to the description in this document, those skilled in the art can make corresponding combinations of features in the embodiments in this document and in different embodiments.

An example of the present invention is as follows, as shown in FIG. 1 , an amphibious booster water intake pump 15 includes a controller, a pump body 1 and a drive motor 2 that drives the impeller 3 of the pump body 1 to rotate. The water outlet 6 is provided with a one-way valve 4 and a liquid level sensor 5, the liquid level sensor 5 is arranged on the inner side of the one-way valve 4, and the driving motor 2 is provided with a current sensor for detecting the current value of the driving motor 2, The pump body 1 is provided with a vacuum water pump 8, which is a gas and liquid dual-purpose pump. The vacuum water pump 8 is used for pumping the air in the pump body 1 to form a negative pressure in the pump body 1 and pumping liquid. The cooling of the drive motor 2, the vacuum water pump 8 switches the working mode through a switch and realizes the start and stop of the vacuum water pump 8, the vacuum water pump 8 is connected with an inlet pipe and an outlet pipe 9, and the inlet pipe is connected to the pump body 1. The outlet pipe 9 is wound around the casing of the driving motor 2 as a cooling pipe and communicates with the outside of the amphibious booster water pump 15 , and the outlet pipe 9 is arranged in the circumferential direction of the driving motor 2 For many turns, the liquid level sensor 5, the current sensor, the switch, and the drive motor 2 are signally connected to the controller. And control the drive motor 2 and the switch to perform corresponding actions according to the comparison calculation result.

In the specific application process, as shown in Figures 1 to 3, the liquid level sensor 5 detects the liquid level in the pump body 1 and sends the liquid level information to the controller. The controller receives the liquid level information for comparison and calculation and determines whether the pump body 1 is full of water. , it is in the working state in water, the controller controls the drive motor 2 to work, drives the impeller 3 to rotate to do work, the water enters from the water inlet 7 of the pump body 1, and passes through the one-way valve 4 along the water flow channel of the pump body 1 under the action of centrifugal force. The water outlet 6 flows out, otherwise it is in the working state on land. The controller controls the vacuum pump 8 to drain the air in the pump body 1, so that a vacuum is formed inside the pump body 1. Under the action of atmospheric pressure, the water at the water source flows into the pump along the suction pipe 14. , the controller receives the liquid level information transmitted by the liquid level sensor 5 for comparison and processing to determine whether the pump body 1 is filled with water, and when the pump body 1 is filled with water, it controls the drive motor 2 to work.

As shown in Figure 5, when it is used as a booster pump on land, when it is monitored that the pressure of the water inlet 7 of the amphibious booster intake pump 15 as a booster pump reaches a predetermined value, the controller controls the low speed to start the amphibious booster intake pump 15. Continue to monitor the pressure value and water flow of the water outlet 6 of the amphibious booster intake pump 15, and adjust the water intake pump and the amphibious booster intake pump 15 as a booster pump according to the increase in flow and pressure. Speed until the water outlet 6 of the amphibious booster intake pump 15 as the booster pump reaches the predetermined water flow rate and pressure. When used as a booster pump on land, the pump needs to meet the stable outlet pressure for a long time in the full range of zero flow to rated flow, so as to ensure the use requirements of the terminal. For example, when the pump is at zero flow, the water in the pump does not flow. , and the water pump is still working continuously. At this time, the motor current will continue to rise. The current sensor detects the current value of the drive motor 2 and transmits the detected current information to the controller. The controller receives the current information for comparison and calculation. When the current value of the drive motor 2 When the value reaches the preset maximum value, the controller controls the vacuum water pump 8 to extract water from the pump body 1 to cool the drive motor 2 until the current of the drive motor 2 stabilizes at the preset current value. In this way, the normal operation of the drive motor 2 can be ensured, and the pressure water flows through the motor casing to take away the heat of the motor, so that the current of the drive motor 2 is stabilized at a low value. The motor current is reduced. When the current is reduced to the set minimum value, the vacuum pump 8 stops working. This method ensures that the current of the booster pump used on land is stable.

The drive motor 2 is a high-speed permanent magnet variable frequency motor, which can realize stepless speed change within the frequency conversion range of 0 to 227HZ, and has the advantages of small size, light weight and high efficiency; The one-way valve 4 is normally closed. When the pump is pumping water, the one-way valve 4 is opened by the pressure of the water in the pump, and the water can flow out from the water outlet 6. When the pump stops working, the one-way valve 4 Auto reset is off.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 1 , the inlet pipe includes a liquid inlet pipe 10 and an inlet pipe 11 , and the vacuum water pump 8 passes through the liquid inlet pipe 10 and the inlet pipe 11 respectively. Carry out water suction cooling to drive the motor 2 and suction to form a negative pressure in the pump body 1, the liquid inlet pipe 10 and the pump body 1 are connected to the water inlet 7 of the pump body 1, and the intake pipe 11 is connected to the The pump body 1 is connected to the water outlet 6 of the pump body 1 . In this way, the cooling water intake is set at the water inlet 7 of the pump body 1, where the water temperature is relatively low, and the air suction port is set at the water outlet 6 of the pump body 1, which is conducive to pumping the pump body 1 into a vacuum.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 1 , one end of the amphibious booster intake pump 15 where the driving motor 2 is provided is provided with a floating body 12 , and the floating body 12 is connected to the pump body. 1 fixed connection. When the water pump is submerged, the buoyancy of the floating body 12 can make the water pump appear in a floating state.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 1 , the floating body 12 includes a first split body and a second split body, and a container is formed between the first split body and the second split body. The vacuum pump 8 is arranged in the accommodating space and is fixedly connected with the driving motor 2 . In this way, the present invention has a more compact structure and a more reasonable design.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 1 , the amphibious booster water intake pump 15 is provided with a traveling wheel 13 . Preferably, the amphibious booster intake water pump 15 is equipped with 4 wheels for moving the water pump, which can be easily moved on flat roads.

The water pump is an amphibious pump and can be used in a variety of working conditions. Often in the case of emergency rescue in a dangerous situation, the water intake truck needs to obtain water from the nearest location. The shorter the deployment time, the better, and the water source becomes the deployment time. The key to this is that the amphibious pump can be used in a variety of working conditions, and can quickly meet the water intake requirements according to the on-site water source conditions.

The present invention also provides a booster pump vehicle, the embodiments are as follows, as shown in FIGS. 4 and 5 , including a drainage emergency vehicle and any one of the above-mentioned amphibious booster pump 15. The amphibious booster pump 15 The water pump 15 is arranged in the compartment 16 of the drainage rescue vehicle.

The booster pump truck of the present invention carries the above-mentioned amphibious booster intake pump 15, which can be used under various working conditions. In the case of emergency rescue in case of danger, the nearby water intake is short, and the deployment time is short, and at the same time, it can ensure a long time. Water supply under pressure to ensure quick drainage in a short time.

On the basis of the above embodiment, in another embodiment of the present invention, pressure gauges are provided on both sides of the inlet and outlet of the amphibious booster intake pump 15 .

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (7)

1. A water-land dual-purpose supercharging water taking pump comprises a controller, a pump body and a driving motor for driving an impeller of the pump body to rotate, and is characterized in that a one-way valve and a liquid level sensor are arranged at a water outlet of the pump body, the liquid level sensor is arranged on the inner side of the one-way valve, the driving motor is provided with a current sensor for detecting the current value of the driving motor, the pump body is provided with a vacuum water pump, the vacuum water pump is a gas-liquid dual-purpose pump and is used for pumping air in the pump body to form negative pressure in the pump body and pumping liquid to realize cooling of the driving motor, the vacuum water pump switches a working mode through a switch and realizes starting and stopping of the vacuum water pump, the vacuum water pump is connected with an inlet pipe and an outlet pipe, the inlet pipe is communicated with the pump body, the outlet pipe is wound on a shell of the driving motor as a cooling pipe and is communicated, the outlet pipe is arranged in a plurality of circles along the circumferential direction of the driving motor, the liquid level sensor, the current sensor, the change-over switch and the driving motor are in signal connection with the controller, and the controller is used for receiving detection signals of the liquid level sensor and the liquid level sensor, then comparing and calculating the detection signals, and controlling the driving motor and the change-over switch to perform corresponding actions according to comparison and calculation results.

2. The amphibious pressurized water pump according to claim 1, wherein the inlet pipe comprises a liquid inlet pipe and an air inlet pipe, the vacuum pump performs water absorption, cooling and driving of a motor and air suction through the liquid inlet pipe and the air inlet pipe respectively to form negative pressure in the pump body, the liquid inlet pipe and the pump body are connected to a water inlet of the pump body, and the air inlet pipe and the pump body are connected to a water outlet of the pump body.

3. The amphibious pressurized water pump according to claim 2, wherein a floating body is arranged at one end of the amphibious pressurized water pump where the driving motor is arranged, and the floating body is fixedly connected with the pump body.

4. The amphibious pressurized water pump according to claim 3, wherein the floating body comprises a first split body and a second split body, an accommodating space is formed between the first split body and the second split body, and the vacuum pump is arranged in the accommodating space and fixedly connected with the driving motor.

5. The amphibious booster water pump according to any one of claims 1 to 4, wherein the amphibious booster water pump is provided with road wheels.

6. A booster pump vehicle, characterized by comprising a drainage emergency vehicle and the amphibious booster water pump as claimed in any one of claims 1 to 5, wherein the amphibious booster water pump is arranged in a carriage of the drainage emergency vehicle.

7. The booster pump truck as claimed in claim 6, wherein pressure gauges are arranged on both sides of an inlet and an outlet of the amphibious booster water pump.

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