JP2584554B2 - Vibrating column pump - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a vibrating column pump,
A pipe (vibration pipe) having one end immersed in water and the other end arranged in the air and the other end being communicated with the discharge-side liquid guide pipe through a valve plate elastically contacted by a spring, The present invention relates to a pump that vibrates in a longitudinal direction and pumps liquid through the inside of the pipe.

[0002]

2. Description of the Related Art Conventionally, as a vibrating column pump of this kind,
(A) As a vibrating means of the vibrating tube, there is a vibrating means in which a rotating body having an unbalanced weight is rotated by an electric motor, or an electromagnet is used, and a vibrating tube is fixedly provided at an output portion of these vibrators.
(JP-A-58-144700, JP-A-58-18)
Also, (b) a vibrating means is fixed to one end of a leaf spring to the vibrating tube so that vibration of the vibrating tube having a large stroke can be obtained by a vibrating source having a small stroke. There is a configuration in which an electromagnet is fixedly opposed to an elastic body fixed to a leaf spring. (See Japanese Patent Application Laid-Open No. 61-275600.) Also, (c) the vibrating means is such that one of the electromagnets opposite to each other via a permanent magnet and a spring is fixed to the vibrating tube, and the other magnet is fixed. By urging the pole of the electromagnet opposite to the permanent magnet so that it has the same polarity in frequency as the permanent magnet, the magnet fixed to the vibrating tube is moved up and down to vibrate the vibrating tube and pump water. There are things that I try to do. (See Japanese Utility Model Laid-Open Publication No. Sho 61-110900) (d) The vibration means is provided with a slip having a maximum thrust near zero when the slip increases from a direction where the slip increases to a direction where the slip decreases. A linear motor having a thrust characteristic is fixed to a stationary part of a linear motor, a vibration tube is arranged opposite to the stator, and the vibration tube is supported by a bearing so as to be movable in an axial direction. The self-excited vibration system is established by the thrust-slip characteristics of the vibrating tube, so that the linear motor is energized to vibrate the vibrating tube. When the vibrating tube rises, the liquid rises from the lower end of the vibrating tube, and when the vibrating tube descends. There is also one that discharges through a valve plate elastically contacted with the upper end of the vibration tube.
(E) Japanese Patent Application Laid-Open (JP-A) No. 61-197300) (e) A vibrating means is a cylindrical soft magnetic material mounted on the outer periphery of the vibrating tube, and a permanent magnet having different magnetic poles magnetized in a radial direction is alternately provided on the outer periphery. A plurality of stators are arranged at intervals in the tube axis direction to form a mover, and an electromagnetic coil is installed in a U-shaped electromagnetic yoke made of a soft magnetic material outside the mover to form a stator. There is also an arrangement in which the movable element including the vibrating tube is reciprocated slidably in the tube axis direction by being arranged and fixed in the tube axis direction. (Japanese Unexamined Patent Publication No. 1-219400
No.)

[0003]

Among the above-mentioned conventional devices (a), (c), (d) and (e), there are some which can have a non-leakage structure. Since both parts of the mover and the stator are in contact with each other, when exchanging the liquid contact part after pumping, the entire pump must be replaced. Therefore, there is a problem that it cannot be used when it is necessary to sterilize the liquid contact portion after once pumping, for example, for transferring blood.

In the above (b) , a bellows and a flexible support member are provided at the upper and lower ends of the vibrating tube at the liquid contact portion.
Fixed between the vibrating tube and the fixed casing side.
Prevents pumped liquid from entering between the stator and mover sides
However, as described above, once the liquid is once pumped, it is necessary to completely disassemble the entire pump in order to clean and sterilize the liquid contact portion, and there is a problem that cleaning and sterilization involves difficulty. .

[0005] The present invention solves the above-mentioned problems of the prior art, makes it possible to prevent leakage, facilitates disassembly and assembly of a vibrating tube corresponding to a mover, and eliminates the need for cleaning and sterilization. It is an object of the present invention to provide a vibrating column pump having a structure in which a stator portion can be easily cleaned and sterilized.

[0006]

In order to achieve the above-mentioned object, the present invention relates to a liquid supply pipe having a lower end communicating with a liquid and an upper end sealingly inserted into a liquid guide pipe having a discharge port. A vibrating tube that is open in the tube, a valve plate that is in contact with the upper end of the vibrating tube at the other end of a spring that has one end abutting on an immovable part and resilient, and a vibrating tube added in the longitudinal direction. Vibration means for vibration
The tube is divided concentrically into two parts, a wetted part and a vibrating part.
In the vibration pillar pump that has a structure, position on the inside of the cuff portion
Between the upper end of the vibrating pipe and the casing
In between, a sealing device consisting of a diaphragm is formed.
In the connecting part between the lower end of the vibrating pipe wetted part and the suction pipe,
Forming a sealing device consisting of an axially extending bellows,
Vibration tube Wetted part, diaphragm and bellows are integrated
It is characterized by easy disassembly and assembly .

[0007]

In the vibrating column pump according to the present invention, a stationary pumping tube is connected to the lower end of the tube shaft opposite to the upper end of the tube shaft where the control valve (valve plate) of the vibrating tube as the mover is in elastic contact. The liquid in the stationary liquid pumping pipe is pumped by the reciprocating motion of the vibrating pipe and is discharged into the liquid introducing pipe through a control valve (valve plate) at the end of the vibrating pipe.

When it is necessary to clean and sterilize the welded portion after the pumping operation, when the liquid contacting portion of the vibrating tube including the liquid contacting portion 2 and the vibrating portion 1 comes into contact with the pumped liquid, It can be removed from the vibrating part of the vibrating tube and replaced. This and
The upper end of the vibrating pipe wetted part located inside the vibrating part
Sealing device consisting of a diaphragm between the
And the lower end of the vibrating pipe and the suction pipe.
Sealing made of axially extending bellows at the connection with
Forming a device, the vibrating tube wetted part, diaphragm and
The bellows has an integral structure, and the vibrating part is
The outside of the axial bellows attached to the lower end of the
So that it can move relative to the
Disassembly and assembly are easily performed. At this time, since the vibrating part is configured to be isolated from the pumped liquid , cleaning and sterilization of the vibrating part is unnecessary.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.

In the drawing, reference numeral 1 denotes a vibrating tube vibrating portion,
Numeral 2 is a liquid contact portion of the vibration pipe attached so as to fit inside thereof, and the liquid contact portion 2 is fixed to the vibrating portion 1, and both portions 1 and 2 reciprocate simultaneously. To form a vibration tube. The vibrating tube vibrating portion 1 has a permanent magnet 3 radially magnetized on the outer periphery thereof fixed in the tube axis direction via a nonmagnetic spacer 4. The permanent magnets 3 have different magnetic pole directions. Are alternately arranged, the upper and lower ends of the vibrating tube vibrating portion 1 are supported by springs 5 and 6, and the vibrating tubes 1 and 2 constituting the mover are stationary (when operation is stopped).
Are supported so as to maintain the center stroke of the operation stroke (stroke) in the tube axis direction.

A plate-like valve 8 resiliently pressed by a spring 7 is pressed against the upper end of the vibrating pipe liquid contact portion 2 (elastic contact).
A bellows 10 extending in the axial direction is attached to a connection portion with the suction pipe 9 so that the lower end of the liquid contact portion 2 is slidable in a sealed state, and similarly, a diaphragm 11 is provided near the upper end with the casing 12 side. To form a sealing device.

On the other hand, on the stator side, a stator coil 14 is wound in a loop around the vibrating tubes 1 and 2 inside a U-shaped electromagnetic yoke 13 (inner circumferential groove) made of a magnetic material. In this embodiment, two stages are connected in the tube axis direction. A spacer 15 made of a nonmagnetic material is interposed on the inner peripheral side of the electromagnetic yoke 13 to seal between the stator coil 14 side and the vibrating tube 1 side of the vibrating tube. In the drawing, 9a is a suction port, and 12a is a discharge port.

With the above configuration, when an alternating current is alternately applied to each of the electromagnetic coils 14 during operation, an electromagnetic force in the tube axis direction generated by the stator magnetic poles 13 is generated in the radial direction. A reciprocating thrust in the tube axis direction is applied to the movers (vibrating tubes 1 and 2) in which permanent magnets 3 having different magnetized magnetic poles are alternately arranged to move the vibrating tubes 1 and 2 up and down. The vibration amplitude is controlled by controlling the coil current. With the vertical movement of the vibrating tubes 1 and 2 as described above, if a stationary liquid pumping tube is connected to the suction pipe 9 below the vibrating tube wetted portion 2, the vibrating tubes 1 and 2 can be connected.
The liquid in the stationary pumping pipe is pumped by the reciprocating motion of 2.
The liquid is discharged into the liquid guide pipe (not shown) on the discharge side through the valve plate 8 at the end of the vibrating pipe.

When it is necessary to replace the liquid contact part for cleaning and sterilization after the completion of the pumping action, the liquid contact part 2 of the vibrating tube can be removed from the vibration part 1 and replaced. At this time, the vibration part 1 is attached to the lower end of the liquid contact part 2.
Of the bellows 10 extending in the axial direction
Disassembly and assembly of both parts 1 and 2
Is easily performed. At this time, the vibration tube vibrating portion 1
The upper and lower parts are the sealing device for the diaphragm 11 and the bellows 10
And the vibrating part 1
For this, cleaning and sterilization is unnecessary, and cleaning and sterilization of the fixed portion is easy.

In the above-described embodiment, the configuration in which the vibrating column pump is a vertical type has been described. However, it is also possible to use a horizontal type. Also, the vibrating means is not limited to the above-described embodiment.

[0016]

As described above, according to the present invention,
The lower end communicates with the liquid, the upper end is hermetically inserted into the liquid guide tube provided with the discharge port, and the vibrating tube is opened in the liquid guide tube. at the other end of which spring the valve plate abutting the upper end of the vibrating tube, the vibration means for vibrating the vibrating tube longitudinally with, wetted the vibrating tube concentrically
A vibration column pump having a structure divided into two parts, a vibration part and a vibration part.
A diaphragm is placed between the upper end of the wetted part and the casing.
Forming a sealing device made of a
At the connection between the lower end of the minute and the suction pipe,
Forming a sealing device consisting of a
Disassembly and assembly with diaphragm and bellows as an integral structure
By making it easier , once the liquid is pumped, when cleaning and sterilizing the liquid contact part, only the vibrating tube liquid contact part constituting the vibrating tube can be replaced, so that cleaning and sterilizing the vibrating tube becomes unnecessary, Cleaning and sterilization of the fixed portion can be made easy.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a vibrating column pump showing one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vibration pipe vibration part 2 Vibration pipe liquid contact part 3 Permanent magnet 4 Spacer 5, 6, 7 Spring 8 Valve 9 Suction pipe 10 Bellows 11 Diaphragm 12 Casing 13 Electromagnetic yoke 14 Electromagnetic coil 15 Spacer

Claims (1)

(57) [Claims] A vibrating tube having a lower end communicating with the liquid, an upper end sealingly inserted into a liquid guide tube having a discharge port, and an opening in the liquid guide tube; A valve plate abutting on the upper end of the vibrating tube at the other end of the spring abutting and resilient;
A vibration means for vibrating the vibration tube in the longitudinal direction is provided .
Concentrically divided into two parts, a liquid contact part and a vibration part
The vibrating column pump and, to a position inside of the cuff portion
Between the upper end of the vibrating pipe and the casing
In addition to forming a sealing device consisting of a diaphragm,
At the connection between the lower end of the vibrating pipe and the suction pipe,
Forming a sealing device consisting of bellows extending in
Fluid contact part, diaphragm and bellows are integrated
A vibration column pump characterized by easy disassembly and assembly .