KR102485141B1 - Non-stationary pump - Google Patents

Abstract

An objective of the present invention is to provide a non-fixed pump that can be stably operated even in a non-fixed state. According to an embodiment of the present invention, the non-fixed pump may comprise: a body unit for introducing liquid therein and discharging the same; a driving unit located on an upper surface of the body unit and rotating a portion of the body unit; and a discharge unit connected to a lower part of the body unit, extending upwards, located on both sides of the body unit, and connected to the upper side of the driving unit. When the body unit is immersed in the liquid and the driving unit rotates a part of the body unit, the body unit sucks in and discharges the liquid to diverge the liquid to the discharge unit and guide the liquid, and the diverged liquid is rejoined at the discharge unit and discharged.

Description

Non-stationary pump {Non-stationary pump}

The present invention relates to a pump, and more particularly, to a non-fixed pump that suctions and discharges a fluid, particularly a liquid, in a non-fixed state.

A pump is a machine that obtains energy from the outside and moves a fluid, that is, a liquid or gas, through a pressure action. These pumps can be divided into turbo pumps, positive displacement pumps, special pumps and the like according to their structures and operating principles.

A turbo pump is a pump that provides energy to a liquid using rotational force generated by rotating an impeller inside a casing that maintains pressure. It may include a mixed-flow pump operated by , an axial-flow pump operated by an axial flow type, and the like. These turbo pumps have a simple structure, are convenient to use, generate less vibration than positive displacement pumps, and have different discharge rates depending on pressure. In addition, the positive displacement pump is a pump that puts fluid in a certain volume and changes the volume to sequentially suck and discharge fluid, such as a reciprocating piston pump, a plunger pump, a rotary vane pump, a gear pump, a screw pump, etc. can include Such positive displacement pumps do not generate discharge amount fluctuations according to pressure changes and provide good efficiency even when discharge amount fluctuations occur during operation. In addition, the special type pump refers to a pump used for a special purpose, and may include a bubble pump, an injection pump, a vacuum pump, and the like. The bubble pump does not fail even if the fluid contains foreign substances, so it is often used to pump up dirty water, for example, the injection pump is a pump used for fuel injection of diesel engines, and the vacuum pump pumps air in an enclosed space. A pump used to draw and create a vacuum.

On the other hand, pumps using rotational force are used in a fixed state due to centrifugal force. It is difficult for these pumps to operate stably by centrifugal force in an unfixed state. Here, the pump is also designed to diverge and discharge the sucked fluid. However, the fluids collide with each other at the point where the fluids diverge and rejoin for discharge, resulting in flow loss. In addition, the collision of the fluid may cause vibration to deteriorate the durability of the pump.

The technical problem to be achieved by the non-fixed pump according to the technical idea of the present invention is to provide a non-fixed pump that can be stably operated even in a non-fixed state.

In addition, a technical problem to be achieved by the non-fixed pump according to the technical idea of the present invention is to provide a non-fixed pump that allows the branched fluid to be used or treated by joining in a state in which collision is minimized in the discharge process.

In addition, a technical problem to be achieved by the non-fixed pump according to the technical idea of the present invention is to provide a non-fixed pump having a relatively light weight.

The technical problem to be achieved by the non-fixed pump according to the technical concept of the present invention is not limited to the above-mentioned problem, and another problem not mentioned will be clearly understood by those skilled in the art from the description below.

A non-fixed pump according to an embodiment according to the technical idea of the present invention includes a body portion for introducing and discharging liquid; a driving unit located on an upper surface of the body and rotating a portion of the body; And a discharge part connected to the lower part of the body, extending upward, located on both sides of the body, and connected to the upper side of the driving part. It may be characterized in that the branched liquid is discharged and diverged to the discharge unit, and the branched liquid is rejoined at the discharge unit and discharged.

In addition, the body portion, doedoe made of a columnar shape, the base body in which the driving unit is located on the upper surface; Located on the lower surface of the base body, a flow space having a cross-sectional area larger than that of the base body is concavely formed on the lower surface, and a flow body connected to the discharge portion on the side so as to be connected to the flow space; an impeller having a plurality of blades and rotatably positioned in the flow space; And a shaft rotatably positioned inside the base body and connecting the drive unit and the impeller, but when the shaft is rotated by the drive unit, the impeller is rotated to suck liquid into the flow space and discharge it to the discharge unit.

In addition, the discharge unit may be connected to an edge portion of the flow body so as to be positioned at a constant distance from each other along the circumferential direction of the base body.

In addition, in the discharge unit, a merging guide may be positioned inside the discharge unit where the liquids are joined to each other so that the liquids flowing in close proximity to each other flow upward to be gradually spaced apart from each other.

In addition, the discharge part, the first longitudinal section is connected to the lower part of the body, extends from the lower part of the body and is bent to approach each other at the upper side of the driving part, and the second longitudinal section opposite to the first longitudinal section is closer to each other than 180 °. a pair of branch pipes forming a small angle; and a joining body connected to the second longitudinal section of the branching pipes and located above the branching pipes, the joining space being concavely formed on the upper surface, but the joining guide is located on the lower surface of the joining space and joins to correspond to each of the branching pipes. space can be partitioned.

In addition, the merging guide is made of a plate shape, is positioned vertically on the lower surface of the merging space between the branching pipes, divides the merging space into two, and includes a base guide corresponding to a part of the second longitudinal section of the branching pipe; And a body guide each formed in a plate shape, extending from a part of the second longitudinal section of the branch pipe, connected to the base guide, and gradually bent upward, wherein the liquid passes through the branch pipe and is guided to the joining space, , It may come into contact with the body guide in the confluence space and gradually flow upward along the body guide.

In addition, an empty space may be formed between the base guide and the body guide.

In addition, the merging body may be connected to be detachable from the branch pipes.

In addition, the first end portion of the body guide is hingedly connected to a portion of the second longitudinal end face of the branch pipe, and the second end portion opposite to the first end portion of the body guide is positioned so as to be in contact with the base guide, the discharge unit, a contact base formed in a plate shape corresponding to the base guide, positioned between the base guide and the body guide and in contact with the second end portion of the body guide; And a guide elastic body consisting of a plurality of compression springs connected to the base guide and the contact base, maintaining a constant distance between the base guide and the contact base, and positioned in parallel with each other, but the contact base is formed by the guide elastic body. It is possible to support the body guide in a state spaced apart from the guide.

In addition, when the liquid is in contact with the body guide in the confluence space at a pressure below the set value and gradually flows upward along the body guide, the guide elastic body is maintained in its original shape, the body guide is in contact with and supported by the contact base, and the liquid When it comes into contact with the body guide in the confluence space with a pressure greater than the set value and flows upward along the body guide, the body guide rotates toward the base guide due to the liquid, and the contact base compresses the guide elastic body toward the base guide. Being moved, the liquid can be discharged from the confluence space at a gradually reduced pressure.

Non-fixed pumps according to embodiments according to the technical idea of the present invention have the following effects.

(1) The pump can operate stably even when it is not fixed.

(2) When the fluids are joined for discharge in a state where they are diverged, the pump can discharge the fluids in a state in which collision between the fluids is minimized.

(3) The pump may have a relatively light weight.

However, the effects that can be achieved by the non-fixed pump according to an embodiment of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

In order to more fully understand the drawings cited herein, a brief description of each drawing is provided.
1 is a perspective view showing a pump according to an embodiment of the present invention.
2 is a cross-sectional view showing a pump according to an embodiment of the present invention.
Figure 3 is a cross-sectional view showing a pump according to an embodiment of the present invention in a modified form.

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail through detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that the present invention includes all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, numbers (eg, 1st, 2nd, etc.) used in the description process of this specification are only identifiers for distinguishing one component from another component.

In addition, in this specification, when one component is referred to as “connected” or “connected” to another component, the one component may be directly connected or directly connected to the other component, but in particular Unless otherwise described, it should be understood that they may be connected or connected via another component in the middle.

In addition, in the present specification, components expressed as '~ part' may be two or more components combined into one component, or one component may be differentiated into two or more for each more subdivided function. In addition, each of the components to be described below may additionally perform some or all of the functions of other components in addition to its own main function, and some of the main functions of each component may be different from other components. Of course, it may be performed exclusively by a component.

Hereinafter, embodiments according to the technical idea of the present invention will be described in detail in turn.

Figure 1 is a perspective view showing a pump 100 according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing the pump 100 according to an embodiment of the present invention.

1 and 2, the pump 100 according to an embodiment of the present invention may include a body part 101, a driving part 102 and a discharge part 103, and the liquid stored in a container or the like It can be used to move (eg, chemicals, water, etc.) by suction and discharge.

The body portion 101 is formed in a columnar shape, and can flow in and discharge liquid in a state partially immersed in liquid. In addition, the body portion 101 may include a base body 111, a flow body 113, an impeller 115, and a shaft 117.

The base body 111 may have a cylindrical shape. The base body 111 of this embodiment is shown as being made of a cylindrical shape, but is not limited thereto, and may be made of various column shapes such as a square column shape and a pentagonal column shape.

The flow body 113 may be formed in a cylindrical shape having a lower height than the base body 111 and may be positioned on the lower surface of the base body 111 . Here, the flow body 113 may have a larger outer diameter than the outer diameter of the base body 111 .

In addition, the flow space 110 may be formed concavely in a shape corresponding to the flow body 113 on the lower surface of the flow body 113 . Here, the inner diameter of the flow space 110 may have a larger outer diameter than the outer diameter of the base body 111 .

The impeller 115 may have a plurality of blades and may be rotatably positioned in the flow space 110 . That is, the impeller 115 may be rotated about an axis corresponding to the center of the base body 111 .

In addition, when the impeller 115 is rotated while the body part 101 is partially submerged in the liquid, the liquid may be sucked into the flow body 113 by being introduced into the flow space 110 by the impeller 115. there is. Also, the liquid may be directed towards the edge of the flow space 110 due to the centrifugal force.

The shaft 117 may be positioned inside the base body 111 by penetrating the upper and lower surfaces of the base body 111 . Here, the lower end of the shaft 117 may be connected to the center of the impeller 115 . The shaft 117 may rotate about an axis along the longitudinal direction of the shaft 117 to rotate the impeller 115 .

The driving part 102 is located on the upper surface of the body part 101, particularly the base body 111, and can generate rotational force. Here, the drive unit 102 is made in the form of a motor, and preferably may be a hydraulic motor that generates power according to the inflow and outflow of oil. When the driving unit 102 is a hydraulic motor, the driving unit 102 may have a lighter weight than when it is an electric motor.

In addition, the driving unit 102 may be connected to an upper end of the shaft 117 . That is, the shaft 117 may connect the drive unit 102 and the impeller 115 . Due to this, the shaft 117 may transmit rotational force by the drive unit 102 to the impeller 115 to rotate the impeller 115 . Here, the impeller 115 is rotated at high speed by the drive unit 102, so that the liquid can be easily introduced into the flow space 110.

The discharge part 103 is connected to the lower part of the body part 101, especially the flow body 113 around the base body 111, on both sides of the body part 101, and the liquid sucked into the body part 101 is transferred to the body part. (101). Here, the discharge unit 103 may extend upward from the flow body 113 and be connected to the upper side of the driving unit 102 . That is, the liquid may be discharged from the body part 101 in a branched state, guided to the discharge part 103, joined at the discharge part 103, and then discharged.

In addition, the discharge unit 103 may include branch pipes 131 , a joining body 133 and a joining guide 135 .

Branch pipes 131 are made of a pair, and each has a pipe shape. The branch pipes 131 may be bent so as to be close to each other at the lower part of the body part 101, especially from the side of the moving body 113 to the upper part of the driving part 102. Here, each of the branch pipes 131 may be connected to an edge portion of the flow body 113 along a tangential direction of the flow direction of the liquid in the flow space 110 by centrifugal force. In addition, the first longitudinal section of the branch pipe 131 may be connected to the side of the flow body 113 and connected to the flow space 110 . In addition, the second longitudinal section opposite the first longitudinal section of the branch pipe 131 may be positioned above the driving unit 102 to form an angle smaller than 180° while being close to each other. Here, the second longitudinal sections of the branch pipes 131 may be spaced apart from each other, and it may be preferable to form an angle greater than 90° and smaller than 180°.

On the other hand, the branch pipes 131 may be positioned at regular intervals from each other along the circumferential direction of the base body 111 while being connected to the side of the flow body 113, respectively. That is, the branch pipes 131 may be positioned to correspond to each other based on the center of the base body 111 .

The confluence body 133 may be connected to the branch pipes 131 and positioned above the branch pipes 131 . The confluence space 130 may be concavely formed on the upper surface of the confluence body 133 . In addition, the merging space 130 may have an open upper surface and be connected to the flow space 110 through branch pipes 131 . Here, the confluence body 133 may be connected to be separable from the branch pipe 131 .

The liquid may flow into the flow space 110, be guided toward the edge of the flow space 110 by centrifugal force, and flow into the branch pipe 131. In addition, the liquid may be discharged through the joining space 130 while being joined along the branch pipe 131 . Here, in a state where the pump 100 of the present embodiment is not fixed, since the branch pipes 131 are spaced apart to correspond to each other, the liquid flows by the centrifugal force and flows through the branch pipes 131 to the flow space 110. ) can be emitted from Due to this, the pump 100 of this embodiment can be stably operated even in a state where it is not fixed without shaking due to centrifugal force.

The confluence guide 135 is formed in a plate shape, is located on the lower surface of the confluence space 130, and may partially divide the confluence space 130 into two parts. Here, each of the two partially partitioned joining spaces 130 may be connected to the branch pipe 131 . In addition, the merging guide 135 may change the flow direction of the liquids flowing so as to approach each other in the merging space 130 after passing through the branch pipes 131 . That is, the merging guide 135 may cause liquids flowing close to each other in the merging space 130 to flow gradually apart from each other, thereby preventing liquids passing through different branch pipes 131 from colliding.

In addition, the joining guide 135 may include a base guide 135a and a body guide 135b.

The base guide 135a is formed in a plate shape, in particular, a flat plate shape, and may be positioned vertically on the lower surface of the merging space 130 between the branch pipes 131 so as to divide the merging space 130 into two. there is. Here, the second longitudinal section of the branch pipe 131 is positioned to face the base guide 135a and may correspond to the base guide 135a, and the joining space 130 divided into two is respectively connected to the branch pipe 131. can be connected

Body guide (135b) is made of a pair, each plate shape, in particular, may be made of a curved plate shape. In addition, the body guide 135b may extend from a portion of the second longitudinal section of the branch pipe 131 and be connected to the base guide 135a, and may be gradually bent upward. Here, a portion of the second longitudinal section of the branch pipe 131 may mean a portion corresponding to the body guide 135b in the second longitudinal section of the branch pipe 131 .

The body guide 135b as described above may gradually guide the liquid introduced into the confluence space 130 upward after passing through the branch pipes 131 . Here, the liquid may come into contact with the body guide 135b in the confluence space 130 and gradually flow upward along the body guide 135b. That is, the body guide 135b may pass through the branch pipes 131 and change the direction of the liquids approaching each other in the confluence space 130 so as to gradually move away from each other. In addition, since only the upper end of the body guide 135b is connected to the base guide 135a, an empty space may be formed between the base guide 135a and the body guide 135b. An impact caused by a collision between the liquid and the body guide 135b may not be transmitted to the base guide 135a. Due to this, after passing through the branch pipes 131 , the liquid may merge into the confluence space 130 and be simultaneously discharged in a state in which collision is minimized.

The pump 100 of this embodiment may discharge liquid through a discharge unit 103 including a pair of branch pipes 131 spaced apart from each other at regular intervals along the circumferential direction of the body unit 101 . Here, the liquid has a centrifugal force due to the impeller 115 in the body portion 101, but the liquid may be discharged in a state in which the centrifugal force acts in opposite directions to each other due to the branch pipes 131. Due to this, the pump 100 of the present embodiment can be stably positioned and operated without tilting by centrifugal force even in an unfixed state.

In addition, the pump 100 of this embodiment may branch and discharge the liquid sucked into the body portion 101 through a pair of branch pipes 131. Here, the branched liquid may be joined at the joining body 133 connected to the branching pipes 131 . Here, the liquid may flow in a direction approaching each other in the confluence space 130 of the confluence body 133, but gradually flow upward by the confluence guide 135 and may flow in a direction gradually spaced apart from each other. Due to this, the liquid can be discharged after being diverted from the body 101 and then joined in a state in which collisions with each other are minimized. Therefore, the pump 100 of the present embodiment can improve discharge efficiency by minimizing the flow loss of the liquid, and can have improved durability by minimizing vibration and shaking due to collision with the liquid.

3 is a cross-sectional view showing a pump 100 according to an embodiment of the present invention in a modified form.

As shown in FIG. 3 , the discharge unit 103 of the pump 100 may be deformed. Here, the first end portion of the body guide 135b may be hinged to a portion of the second longitudinal section of the branch pipe 131, and the second end portion opposite to the first end portion of the body guide 135b is a base guide (135a) can be contacted. Here, the body guide 135b may be spaced apart from the base guide 135a or rotated toward the base guide 135a.

In addition, the discharge unit 103 may further include a contact base 136 and a guide elastic body 137 .

The contact base 136 may be formed in a flat plate shape corresponding to the base guide 135a, and may be positioned to correspond to the base guide 135a and may be positioned between the base guide 135a and the body guide 135b. Here, the contact base 136 may contact the second end portion of the body guide 135b and be spaced apart from the base guide 135a.

The guide elastic body 137 consists of a plurality of compression springs, which are positioned parallel to each other, connect the base guide 135a and the contact base 136, and maintain a constant distance between the base guide 135a and the contact base 136. can keep it Here, when the contact base 136 moves close to the base guide 135a, the guide elastic body 137 may accumulate restoring force while being compressed. Meanwhile, the guide elastic body 137 may move the contact base 136 to be further separated from the base guide 135a by being stretched by the restoring force. In addition, the contact base 136 may support the body guide 135b while being spaced apart from the base guide 135a by the guide elastic body 137 .

The liquid may be brought into contact with the body guide 135b in the confluence space 130 at a pressure equal to or less than the set value and gradually flow upward along the body guide 135b. Here, the guide elastic body 137 is maintained in its original shape, and the body guide 135b can be placed in its original position while being in contact with and supported by the contact base 136 .

Meanwhile, liquid having a pressure higher than the set value may be introduced into the confluence space 130 and contacted with the body guide 135b to gradually flow upward along the body guide 135b. Here, the body guide (135b) can be rotated toward the base guide (135a) due to the liquid having a pressure greater than the set value, and the contact base (136) is directed toward the base guide (135a) while compressing the guide elastic body (137). can be moved to Due to this, the flow cross-sectional area of the liquid flowing in the merging space 130 is increased, and the liquid can be discharged from the merging space 130 with a reduced pressure.

In addition, when the pressure of the liquid in the confluence space 130 is gradually reduced in a state greater than the set value, the guide elastic body 137 gradually restores its original shape from the compressed shape and separates the contact base 136 from the base guide 135a. It can be moved and rotated so that the body guide (135b) is spaced apart from the base guide (135a).

When a liquid having a pressure higher than the set value is introduced into the confluence space 130 from the deformed discharge part 103 as described above, the body guide 135b flows toward the base guide 135a due to the pressure of the liquid and merges. A flow cross-sectional area of the liquid flowing in the space 130 may be increased. Due to this, the liquid may gradually decrease from a pressure greater than the set value in the confluence space 130 to have a set pressure. Due to this, the liquid may have a pressure at a set level in the confluence space 130 . Therefore, the discharge unit 103 modified in the pump 100 of the present embodiment can constantly control the pressure of the liquid joined in the confluence space 130 to a set value level, so that the liquid having a pressure greater than the set value is discharged. Impact applied to the unit 103, particularly the confluence body 133 and the confluence guide 135, can be reduced, thereby preventing damage to the discharge unit 103 and improving durability of the discharge unit 103.

In the above, the technical spirit of the present invention has been described in detail with preferred embodiments, but the technical spirit of the present invention is not limited to the above embodiments, and those skilled in the art within the scope of the technical spirit of the present invention Various modifications and changes are possible by the person.

100: pump
101: body part
102: driving unit
103: discharge unit

Claims (10)

A body portion for inflowing and discharging liquid;
a driving unit located on an upper surface of the body and rotating a portion of the body; and
It is connected to the lower part of the body part, extends upward, is located on both sides of the body part, and includes a discharge part connected to the upper side of the driving part,
When the body part is immersed in the liquid and the driving part rotates a part of the body part, the body part sucks in and discharges the liquid and diverges to the discharge part, and the diverged liquid is rejoined at the discharge part and discharged,
Inside the discharge part where the liquid is joined, a merging guide is positioned to flow the liquid flowing closer to each other upward so as to be gradually spaced apart from each other,
discharge part,
Each of the first longitudinal sections is connected to the lower part of the body, extends from the lower part of the body, and is bent to approach each other at the upper side of the driving part, and the second longitudinal sections, opposite to the first, form an angle smaller than 180° while being close to each other. a pair of branch pipes that do; and
It is connected to the second longitudinal section of the branch pipes and is located on the upper side of the branch pipes, and includes a joining body in which the joining space is concavely formed on the upper surface,
The merging guide is located on the lower surface of the merging space to partition the merging space to correspond to each of the branch pipes.
The method of claim 1, wherein the body portion,
Doedoe made in the shape of a pillar, the base body in which the driving unit is located on the upper surface;
Located on the lower surface of the base body, a flow space having a cross-sectional area larger than that of the base body is concavely formed on the lower surface, and a flow body connected to the discharge portion on the side so as to be connected to the flow space;
an impeller having a plurality of blades and rotatably positioned in the flow space; and
It is rotatably located inside the base body and includes a shaft connecting the drive unit and the impeller,
When the shaft is rotated by the driving unit, the impeller is rotated to suck the liquid into the flow space and discharge it to the discharge unit.
According to claim 2,
The pump characterized in that the discharge unit is connected to the edge portion of the flow body so as to be spaced apart from each other along the circumferential direction of the base body.
delete delete The method of claim 1, wherein the joining guide,
A base guide formed in a plate shape, positioned vertically on the lower surface of the merging space between the branching pipes to divide the merging space into two parts, and corresponding to a part of the second longitudinal section of the branching pipe; and
Each body guide is formed in a plate shape, extends from a portion of the second longitudinal section of the branch pipe, is connected to the base guide, and is gradually bent upward,
The pump, characterized in that the liquid is guided to the confluence space through the branch pipes, and flows gradually upward along the body guide in contact with the body guide in the confluence space.
According to claim 6,
A pump characterized in that an empty space is formed between the base guide and the body guide.
According to claim 1,
The pump, characterized in that the confluence body is detachably connected from the branch pipes.
According to claim 6,
The first end portion of the body guide is hingedly connected to a portion of the second end face of the branch pipe, and the second end portion opposite the first end portion of the body guide is positioned so as to be able to contact the base guide,
discharge part,
a contact base formed in a plate shape corresponding to the base guide, positioned between the base guide and the body guide and in contact with the second end portion of the body guide; and
Further comprising a guide elastic body consisting of a plurality of compression springs connecting the base guide and the contact base, maintaining a constant distance between the base guide and the contact base, and positioned parallel to each other,
The pump characterized in that the contact base supports the body guide in a state spaced apart from the base guide by the guide elastic body.
According to claim 9,
When the liquid is in contact with the body guide in the confluence space at a pressure below the set value and gradually flows upward along the body guide, the guide elastic body is maintained in its original shape, and the body guide is contacted and supported by the contact base,
When the liquid is in contact with the body guide in the confluence space with a pressure greater than the set value and flows upward along the body guide, the body guide is rotated toward the base guide due to the liquid, and the contact base compresses the guide elastic body and moves the base guide. and the liquid is discharged from the confluence space at a gradually reduced pressure.

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