KR101829129B1 - A vacuum self-priming pump - Google Patents

Abstract

The present invention prevents the opening and closing of the inside of the air discharge pipe connected to the vacuum means to discharge the air in the pump chamber every time the water level of the pump chamber fluctuates, thereby ensuring structural stability.
The air venting means for opening and closing the air discharge passage of the air discharge pipe is provided in the air discharge pipe and is disposed in the chamber and receives the sensing data of the sensing means for sensing the level of the chamber, And an electromagnetic valve for controlling the supply of power through the control of the control means to control opening and closing of the air discharge pipe; The sensing means may include a first sensor disposed at a position of a level of the fluid enough to generate a vacuum suction force in the chamber and a second sensor positioned above the first sensor; The solenoid valve is arranged to open and close a position at the air discharge pipe having a higher water level than the second sensor; The control means controls to drive the solenoid valve in such a manner as to close the air discharge pipe when the level of the chamber senses the level of the fluid in the second sensor; When the level of the chamber senses the level of the fluid in the first sensor during operation of the vacuum pump in the chamber, the vacuum pump is controlled to drive the solenoid valve in such a manner as to open the air discharge pipe .

Description

A vacuum self-priming pump < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum force suction pump for forcibly discharging air from a pump chamber through which a fluid is pumped through a rotating force of a motor to form a vacuum state, And the opening and closing of the air discharge pipe is prevented from occurring every time when the water level of the pump chamber fluctuates, so that the structural stability can be ensured.

Generally, a reservoir, a dam, and a flooded area are provided with a pump for sucking and discharging water to pump water as needed.

Such a pump is a device for pumping the fluid upward to forcibly move the fluid when the fluid is below the discharge port, and is used to move or circulate the fluid.

Such a pump generally operates only when the water is completely filled into the chamber at the initial stage of operation to implement a vacuum state. In the past, by using a hand-held vacuum pump that continuously supplies a predetermined amount of water The inside of the chamber is vented to form a vacuum state, thereby creating an environment in which the pump operation can be performed.

As described above, in the conventional pump, since a separate water pump or the like must be installed in order to introduce water into the chamber and to realize the vacuum state, there is a problem that the efficiency of space utilization is low and also it is uneconomical.

Accordingly, the applicant of the present invention has proposed Korean Patent Registration No. 10-0791044 (name: vacuum pump suction pump) to solve the problems of the conventional pump as described above.

As described above, the vacuum forced-air suction pump proposed by the applicant of the present invention has a pump chamber having a motor and a space portion of a predetermined size and is connected to the rotation shaft of the motor and sucks fluid from the suction port 1. A pump having a body having an impeller therein so as to be discharged to a discharge port, the pump comprising: an air discharge pipe communicating with a pump chamber of the body to move air in the pump chamber; An air cutoff unit installed between one end of the air discharge pipe and the body pump chamber to open and close one end of the air discharge pipe; And an air discharge unit communicating with the other end of the air discharge pipe and having an air pumping unit for discharging air from the body pump chamber to the outside.

Accordingly, there is provided an air discharging means that communicates with the pumping chamber in which the fluid is pumped by the motor and discharges the air in the pumping chamber to the outside, thereby forcibly discharging the air inside the pump chamber to the outside, It is possible to more easily move the fluid pumped by the pump, thereby shortening the working time, minimizing the power consumption, and improving the work efficiency.

However, the vacuum strong suction pump of Korean Patent Registration No. 10-0791044 proposed by the applicant of the present invention as described above is applied to a general pump installed and installed in a user's place since the air discharge means and the vacuum pump are integrated There was a problem that was impossible.

Accordingly, the present applicant has proposed Korean Patent Registration No. 10-1141412 entitled " Vacuum Stronger Suction Pump ".

As described in the above publication, the vacuum forced-air suction pump proposed by the applicant of the present invention has a motor and a pump chamber that receives power of the motor and rotates the impeller to suck / discharge the fluid, 1. A vacuum force suction pump having a body provided with a one-way check valve at a discharge port, and an air discharging means for discharging air from the pump chamber to the outside; The air discharge means includes a tubular air discharge pipe whose one end is communicated with the pump chamber and is equipped with an on-off valve to control the flow of air. The air discharge pipe is connected to the other end of the air discharge pipe, And a vacuum pump.

That is, an air discharge pipe connected to a vacuum pump and connected to a vacuum pump is connected to an inlet pipe through which the fluid flows in the pump chamber, and the air in the pump chamber is discharged from the inlet port side to realize a vacuum state.

On the other hand, the present applicant has proposed Korean Patent Registration No. 10-1186738 (entitled: Vacuum Stronger Suction Pump).

As described in the above publication, the vacuum forced draft pump proposed by the applicant of the present invention includes a motor, a pump chamber that receives the power of the motor and rotates the impeller to suck / discharge the fluid, Wherein the air discharge means is provided with one end communicating with a discharge port of the pump chamber and having a first opening and closing valve and an air discharge port for discharging air to the outside And a vacuum pump connected to the other end of the air discharge pipe for sucking the air in the pump chamber and discharging the air to the outside. A sensor for detecting the inflow of the fluid is provided between the first opening / closing valve and the vacuum pump And a second opening / closing valve is provided at an external position of a position where the air discharge pipe of the discharge port is communicated.

That is, the air in the pump chamber is discharged from the discharge port side by connecting an air discharge pipe connected to the discharge pipe connected to the discharge port through which the fluid is discharged from the pump chamber to suck and discharge the air.

1, Korean Patent Registration No. 10-0791044 2, Korean Patent Registration No. 10-1186738

However, the conventional vacuum pump as described above has a problem in that the stability of the vacuum pump is deteriorated due to the fluctuation of the level of the chamber and the opening and closing of the air discharge pipe are changed at each time point.

In other words, since the air blocking means for opening and closing the air discharge pipe during the pumping of the fluid in the chamber is driven from time to time, the stability is deteriorated and the working efficiency is lowered.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide an apparatus and a method for opening and closing an air discharge pipe connected to a vacuum means, So that the structural stability of the vacuum pump can be ensured.

According to another aspect of the present invention, there is provided a vacuum pump sucking pump including a motor, a chamber connected to a rotating shaft of the motor and rotating, the inlet having a fluid inlet into the chamber, A housing having an outlet through which a fluid is discharged from the chamber; an air discharge pipe through which the air in the inlet and the chamber is moved; a vacuum means for discharging air moved through the air discharge pipe to the outside; And an air blocking means for opening and closing the vacuum pump. The air shutoff means is provided in the air discharge pipe and is disposed in the chamber, receives the sensed data of the sensing means for sensing the level of the chamber, and controls the control means based on the set data, And an electromagnetic valve for controlling supply and regulating the opening and closing of the air discharge pipe; The sensing means may include a first sensor disposed at a position of a level of the fluid enough to generate a vacuum suction force in the chamber and a second sensor positioned above the first sensor; The solenoid valve is arranged to open and close a position at the air discharge pipe having a higher water level than the second sensor; The control means controls to drive the solenoid valve in such a manner as to close the air discharge pipe when the level of the chamber senses the level of the fluid in the second sensor; And controls the electromagnetic valve to open the air discharge pipe when the level of the chamber senses the level of the fluid in the first sensor during operation of the vacuum pump in the chamber.

The vacuum pump sucking pump according to the present invention as described above can be applied to the inside of the air discharge pipe even if the water level fluctuates in the interval range of the water levels in which the first sensor and the second sensor are located, It is not opened and closed, and the structural stability is secured.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 and FIG. 2 are schematic views showing a vacuum strong suction pump according to an embodiment of the present invention; FIG.
3 to 5 are schematic views showing an example of sensing means applied to a vacuum force suction pump according to the present embodiment.

Hereinafter, a vacuum pump according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 to 5 show a vacuum force suction pump according to an embodiment of the present invention. The vacuum force suction pump 1 according to the present embodiment includes a motor 2, a motor 2, An inlet 42 through which the fluid flows into the chamber 41 and an outlet 43 through which the fluid is discharged from the chamber 41. The impeller 3 is connected to the rotating shaft of the impeller 3, An air discharge pipe 5 through which the air of the inlet 42 and the chamber 41 is moved and a vacuum means for discharging the air moved through the air discharge pipe 5 to the outside 6), and air blocking means (7) for opening and closing the air discharge passage of the air discharge pipe (5).

That is, the air shutoff means 7 is provided between the air exhaust pipe 5 and the inlet 42 to shut off or release the air exhaust passage of the air exhaust pipe 5 to control the movement of the fluid.

Preferably, the outlet 43 connected to the chamber 41 is provided with a check valve 8 for preventing the back flow of the fluid.

That is, when the chamber 41 is formed in the vacuum state through the vacuum means 6, external air and fluid are prevented from flowing backward through the outlet 43 and the vacuum state of the chamber 41 is maintained It is most preferable to be implemented smoothly.

The check valve 8 is a one-way check valve that prevents the fluid and air from flowing back to the chamber 41 from the outlet 43 and discharges the fluid to the outside through the outlet 43 And may be a solenoid valve that is driven by an external power source. The air or fluid may flow back to the chamber 41 from the outside in accordance with a user's selection, It is preferable that the vacuum state of the chamber 41 can be formed more smoothly by preventing the inflow of air into the chamber 41.

In the vacuum pump 1 according to the present embodiment, the chamber 41 senses the level of the fluid contained in the chamber 41 and senses whether or not the vacuum state is implemented. (10) adapted to apply data to the control means (9).

That is, it is most preferable that the vacuum state of the chamber 41 is sensed in real time through the sensing means 10 to obtain the base data for the control of the motor 2 and the vacuum means 6 Do.

1, the sensing means 10 may be located in the chamber 41, or may be located in the inlet 42 or the air It may be located in the discharge pipe 5 and may be disposed at a position corresponding to a water level enough to perform a vacuum pump in the chamber 41. Most preferably,

In the vacuum forced sucking pump 1 according to the present embodiment, the air shutoff means 7 is provided in the air discharge pipe 5 and is disposed in the chamber 41, The control unit 9 controls the power supply to control opening and closing of the air discharge pipe 5 based on the sensed data of the sensing unit 10, .

Accordingly, the solenoid valve is rapidly driven through the control of the control means (9) to open and close the air discharge pipe.

It is preferable that the control means 9 controls the driving of the vacuum means 6 and the motor 2 and that the chamber 41 is initially in a vacuum state , The control means controls and adjusts the driving of the vacuum means (6) and the opening of the air discharge passage by the solenoid valve, and controls the operation of the chamber (41) The driving of the vacuum means 6 is stopped, the air discharge passage is closed through the solenoid valve, and the motor 2 is driven to continuously maintain the rotation of the impeller 3 Most preferably, the fluid is vacuum pumped through the chamber 41.

In the vacuum forced air suction pump 1 according to the present embodiment as described above, the sensing means 10 is configured so that the inside of the chamber 41 is filled with the first fluid, which is disposed at a position of the water level enough to generate a vacuum suction force, A sensor 11 and a second sensor 12 positioned above the first sensor 11. [

That is, the internal level of the chamber 41 is sensed by the first sensor and the second sensor, respectively.

On the other hand, the solenoid valve described above is arranged to open and close a position at the air discharge pipe 5 having a higher water level than the second sen (12).

That is, the solenoid valve opens and closes the inside of the air discharge pipe at a position higher than the sensing means (10).

The control means 9 drives the solenoid valve so as to close the air discharge pipe 5 when the level of the chamber 41 senses the level of the fluid at the second sensor 12 Control; When the level of the chamber 41 senses the level of the fluid in the first sensor 11 during the operation of the vacuum pump in the chamber 41, So as to be driven.

Accordingly, even if the water level fluctuates within the interval range of the water levels at which the first sensor 11 and the second sensor 12 are located in the chamber 41 in which the vacuum pump operation is performed, The opening and closing of the inside of the discharge pipe 5 is not performed, thereby securing the structural stability and improving the working efficiency.

In the vacuum force suction pump 1 according to the present embodiment as described above, the sensing means 10 is inserted and fixed in the chamber 41, Shaped pipe 13 formed by injection molding with coils of a conductive material constituting the sensor 11 and the second sensor 12 inserted in the pipe 13, (14) having terminals fixed to the chamber (41) while being fixed to the chamber (41) with terminals connected to the electric wires extending outwardly from the coil, and a buoyancy (15) and a permanent magnet (16) fixed to the outer circumferential surface of the buoyant body (15). An electric signal is transmitted to the coil while passing through the coils while moving up and down according to the water level of the chamber Including a magnetic member adapted to generate magnetic field It is to be preferred.

That is, while the magnetic member is lifted in accordance with the level of the chamber 41 in the tube 13, the magnetic signal passes through the coils constituting the first sensor 11 and the second sensor 12, And senses the level of the chamber 41.

It is preferable that a fixing protrusion 17 is formed at the lowermost end of the tubular body 13 so that the buoyant body 15 is not separated from the outside.

The operation and effect of the vacuum strong suction pump 1 according to the present embodiment will be described in detail as follows.

When the fluid is to be pumped through the vacuum pump 1 according to the present embodiment, the vacuum device 7 is first driven with the solenoid valve opened through the control means 9 A vacuum suction force is generated so that fluid and air are sucked from the chamber 41 and the inlet 42 through the air discharge pipe 6 to blow air through the air discharge pipe 5 through the vacuum means 6 And the fluid is introduced into the chamber 41.

When the fluid is introduced into the chamber 41 to form a vacuum state, the second sensor 12 of the sensing means 10 senses the sensed fluid level data, And is applied to the control means 9.

After the control means 9 receives and computes the level data of the fluid sensed by the sensing means 10 as described above, the driving of the vacuum means 6 is stopped according to the set data (program) The air discharge pipe 5 is closed by controlling the solenoid valve so that the rotation of the impeller 3 driven by the motor 2 is continuously maintained so that the fluid in the chamber 41 is discharged through the outlet 43 And pump it to the outside.

In this way, the operation of pumping the fluid through the chamber 41 is performed, and when the pumping operation of the fluid is completed and the level of the fluid in the chamber 41 is lowered to release the vacuum state, the sensing means 10 The control means 9 receives the data of the level of the fluid sensed by the sensing means 10 and calculates the data of the level of the fluid and drives the solenoid valve according to the set data And the initial driving state is maintained by opening the air discharge pipe 5.

As described above, when the air discharge passage is closed in order to realize the inside of the chamber 41 in a vacuum state, the electromagnetic valve is opened / closed through the electric signal of the control means 9 and promptly responded Thereby improving the work quality.

On the other hand, when the water level of the chamber 10 fluctuates and the water level fluctuates between the first sensor 11 and the second sensor 12, the electromagnetic valve is not driven, 41 is lower than the first sensor, the solenoid valve is driven to open the inside of the air discharge pipe 5, thereby securing the structural stability at the time of pumping operation.

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the scope of the present invention as defined by the appended claims and their equivalents. . Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1: vacuum pump suction pump 2: motor
3: impeller 4: housing
41: chamber 42: inlet
43: outlet 5: air outlet
6: Vacuum means 7: Air blocking means
8: Anti-backflow valve
9: control means 10: sensing means
11: first sensor 12: second sensor
13: tube body 14: fixed cover
15: Buoyant body 16: Permanent magnet
17:

Claims (1)

A chamber 41 in which an impeller 3 connected to the rotating shaft of the motor 2 is disposed; an inlet 42 through which the fluid flows into the chamber 41; A housing 4 having an outlet 43 through which the fluid is discharged from the chamber 41 and an air discharge pipe 5 through which the air of the inlet 42 and the chamber 41 is moved, A vacuum means (6) for discharging the air to be discharged to the outside, and an air blocking means (7) for opening and closing the air discharge passage of the air discharge pipe (5);
The air blocking means (7)
A control means provided in the air discharge pipe and arranged in the chamber to receive sensed data of the sensing means for sensing the level of the chamber and to calculate based on the set data, 9) to control the opening and closing of the air discharge pipe (5) by controlling the supply of electric power through the control of the electromagnetic valve (9);
The sensing means (10)
In the chamber 41, a first sensor 11 disposed at a position of a level that generates a vacuum suction force of the fluid, and a second sensor 12 positioned above the first sensor 11 ≪ / RTI >
Wherein the solenoid valve includes:
And is arranged to open and close a position at the air discharge pipe (5) having a water level higher than that of the second sensor (12);
The control means (9)
Controls to drive the solenoid valve so as to close the air discharge pipe (5) when the level of the chamber (41) senses the level of the fluid in the second sensor (12) The vacuum pump is controlled to drive the solenoid valve in such a manner as to open the air discharge pipe 5 when the level of the chamber 41 senses the level of the fluid in the first sensor 11 during the vacuum pump operation of the vacuum pump 1. A suction pump (1) comprising:
The sensing means (10)
The first sensor 11 and the second sensor 12, which are inserted and fixed in the chamber 41 and are vertically spaced apart from each other, A pipe 13 which is fixed to the chamber 41 while closing the upper part of the tube 13 and is connected to an electric wire extending from the coil to the outside, And a permanent magnet 16 fixed to an outer peripheral surface of the buoyant body 15. The buoyant body 15 has a buoyancy body 15 and a buoyant body 15. The buoyancy body 15 has a fixed cover 14 and a permanent magnet 16 disposed inside the tube 13, And a magnetic member for generating an electric signal to the coil while moving up and down according to the level of the coil 41 while passing through the coils;
At the lowermost end of the tube 13,
And a fixing protrusion (17) is formed to prevent the buoyant body (15) from being detached from the outside.

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