KR900010009Y1 - Pump - Google Patents

Abstract

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Description

Pump for vacuum storage

1 is an exploded perspective view of a pump according to the present invention.

2 is an assembled cross-sectional view of the pump shown in FIG.

3 is a rear perspective view of the second guide disk of the components of the pump according to the present invention.

4 is a rear perspective view of the first guide disk of the components of the pump according to the present invention.

* Explanation of symbols for main parts of the drawings

1: Casing 1a: Outlet

2: cover 2a: inlet

3: main impeller 4: first plate

5: 1st guide plate 6: 1st auxiliary impeller

7: 2nd Plate 8: 2nd Information Disc

9: 2nd auxiliary impeller 10: 3rd plate

11: pump shaft 4b, 7b, 10b: through hole

4c, 7c, 10c: guide jaw 5a, 8a: distributor

5c, 8c: Guide groove 10e: Guide groove

The present invention relates to a pump of the present invention, and more particularly, to a pump for delivering a vacuum reservoir configured to pump out a fluid reservoir stored in a vacuum tank to another place while maintaining its vacuum storage state.

Conventional centrifugal pumps that have been used up to now are designed to be suitable for pumping fluid from one place to another under atmospheric pressure, and they are stored in a vacuum tank, especially where the present invention is applied. In the case of a fluid reservoir, the fluid in the vacuum tank can be used using such a conventional centrifugal pump because it does not have the power and function to withstand the negative pressure caused by the vacuum in the tank and pump the fluid reservoir out of the tank. In the case of pumping the storage to another place, conventionally, the air pressure in the vacuum tank is adjusted to atmospheric pressure first, and then pumped, and after pumping, the inside of the tank for continuously storing the remaining fluid storage in the required state, that is, in a vacuum state The pumping of the desired bar had to be done in a vacuum. As a result, not only has to take the cumbersome work of adjusting the inside of the upper vacuum tank to atmospheric pressure or vacuum state each time the pump is pumped, but also the vacuum state inside the tank is broken during pumping. There was a problem that it is impossible to keep in the required vacuum storage state until.

An object of the present invention is to provide a new and useful pump that can effectively pump out the storage fluid in the tank to the outside while maintaining the vacuum state in the vacuum tank to solve the conventional problems as described above.

The pump of the present invention for achieving this object is installed so that a plurality of impellers consisting of the main impeller and the first and second auxiliary impeller on one pump shaft across the center of the pump body to rotate simultaneously in one direction along the rotation of the shaft. Each of these impellers are mutually isolated between the proper diaphragm and guide discs in the pump body, and the negative pressure from the vacuum tank to which the diaphragm and guide discs are intended to pump the storage fluid into the pump. It has such a characteristic structure that it is arranged to sequentially guide the fluid from the tank to the outlet at each different restricted position while effectively blocking or reducing.

Hereinafter, one preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing the components of the pump according to the present invention by disassembling arranged by hand, Figure 2 is a cross-sectional view of the assembled state. As shown here, the main impeller 3 has a casing 1 and a cover 2 on one side and the other side of the pump body of the present invention from the cover 2 side between the casing 1 and the cover 2. , First plate (4), first guide plate (5), first auxiliary impeller (6), second plate (7), second guide plate (8), second auxiliary impeller (9), third plate (10) is assembled to install the pump in order.

More specifically, the casing 1 of the pump extends in a tangential direction to the discharge (1a) on one side, the inner periphery of the groove (1b) extending toward the discharge port (1a) inside the casing (1) It is formed along the wealth. As shown in FIG. 2, a part of the third plate 10 and the second guide disc 8 is inserted and supported in the casing 1. The groove of the case 1 An annular passage is formed between 1b) and the outer circumferential surface of the edge 10d of the third plate 10 to distribute the fluid passing through the third plate 10 toward the discharge port 1a by the function described below.

The cover 2 has a conical recess 2b on the inner surface thereof, which corresponds to the wing shape of the main impeller 3, a suction port 2a at the center, and a flange 2c having a plurality of through holes 2d at the periphery. Each cover 2 has such a configuration, and the cover 2 is provided with a fastening rod (a) between a portion where the through hole 2d of the flange 2c is formed and a portion where the screw hole 1c is formed in the case 1. 14) The assembly is fixed to the position shown by tightening.

The main impeller 3 has a plurality of wings extending in a spiral direction at regular intervals from the center thereof, and the height of each wing gradually increases toward the impeller center so as to form a generally conical shape as a whole. It is located between the inside of the cover 2 and the inside of the rim 4d of the first plate 4 to be described later, and is assembled to the shaft 11 end so as to be integral with the pump shaft 11 by the fastening nut 12. Tightening is fixed. The main impeller (3) is a powerful rotary suction output by the wing configuration as described above when the pump is operated to suck the storage fluid from the vacuum tank through the suction port (2a) of the cover (2) through the opening of the first plate (4) It will play a powerful role toward (4b).

The first plate 4 has a shaft hole 4a formed at the center thereof, and an edge 4d extending toward the main impeller 3 is formed at the outer circumference thereof, and is formed between the edge 4d and the shaft hole 4a. On one side of the circumferential wall portion, a through hole 4b is formed which is in communication with the distribution hole 5a of the first guide disc 5, which will be described later, and a main portion is located on one side of the rim 4d adjacent to the through hole 4b. A guide jaw 4c is formed to guide and restrict the fluid from the impeller 3 to this through hole 4b.

The first auxiliary impeller 6 between the second plate 7 in a state where one side of the edge 5e is assembled and assembled so as to be in airtight contact with the edge 7d of the second plate 7 to be described later. The first guide disk 5 to form an impeller chamber is accommodated is formed in the center through hole 5d through which the boss 6a of the first auxiliary impeller 6 is rotatably inserted. On one side of the circumferential wall portion extending between 5d) and the edge 5e, a distribution hole 5a is formed which is in communication with the through hole 4b of the first plate 4 described above, starting from the distribution hole 5a. In the circumferential wall portion one side (the surface facing the first auxiliary impeller 6), the fluid from the flow hole 5a is passed through the second plate 9 to be described later by the first auxiliary impeller 6 ( At the same time, the circular guide groove 5c (see FIG. 4), which is adapted to be guided properly toward 7b), is formed in a shape that gradually deepens toward the distribution hole 5a. On the other side (surface facing the first partition 4), a partition 5b for restricting the fluid from the through hole 4b toward the flow hole 5a is formed.

The first auxiliary impeller (6) is located in the impeller chamber formed between the first guide disk (5) and the second plate (7) is assembled and installed to rotate integrally with the shaft (11), which is the first guide The second plate 7 located on the opposite side of the disc 5 by applying a strong centrifugal force to the fluid from the flow hole 5a so that the fluid flows along the guide groove 5c in the flow hole 5a. It's building to move forward.

The second plate 7 has a shaft hole 7a formed at the center thereof, and an edge 7d extending toward the first auxiliary impeller 6 is formed at the outer circumference thereof, and extends between the border 7d and the shaft hole 7a. On one side of the circumferential wall formed therein, a through hole 7b in communication with the distribution hole 8a of the second guide disc 8 described later is formed, and on one side close to the through hole 7b inside the edge 7d. A guide jaw 7c is formed to guide the fluid from the first auxiliary impeller 6 to the through hole 7b as appropriate.

At the same time, a portion of the edge 8e is hermetically sealed inside the casing 1 through the packing 16 so as to be in airtight contact with the edge 10d of the third plate 10 to be described later on one side of the edge 8e. The second guide disk 8 which forms an impeller chamber in which the second auxiliary impeller 9 is accommodated between the third plate 10 and the second auxiliary impeller 9 is fitted in the assembled state. The through hole (8d) through which the boss (9a) of the () is rotatably penetrated is formed and the second partition plate (7) described above on one side of the circumferential wall portion extending between the through hole (8d) and the edge (8e) A distribution hole 8a is formed in which the through hole 7b is in communication with each other. A distribution hole 8a is formed at one side surface of the main wall portion (the side facing the second auxiliary impeller 9) from the distribution hole 8a. Arcs to allow the fluid from the cavities to be suitably guided by the second auxiliary impeller 9 to the through hole 10b of the third plate 10, which will be described later. The groove 8c (see FIG. 3) is formed into a shape that gradually deepens toward the flow hole 8a, and the fluid from the through hole 7b is flowed to the other side (the side facing the second plate 7 side). A partition 8b is formed which guides the restriction toward the ball 8a.

The second plate 7 and the second guide plate 8 are basically similar in structure to the first plate 4 and the first guide plate 5 described above, but the through hole 7b and the distribution hole 8a, respectively. The fluid from the first auxiliary impeller 6 in which is formed at a position different from that of the first plate 4 and the first guide plate 5 is transferred to the first plate 4 and the first guide plate 5. It is intended to be distributed to the other side in a limited position different from).

The second auxiliary impeller (9) is located in the interior of the impeller formed between the second guide plate (8) and the third plate (10) to be installed to rotate integrally with the shaft (11), which is the second guide The third centrifugal plate 10 located on the opposite side of the disk 8 by applying a strong centrifugal force to the fluid from the distribution hole 8a so that the fluid flows along the soft guide groove 8c in the distribution hole 8a. It serves as a pivot to move toward).

Finally, the third plate 10 has a shaft hole (10a) is formed in the center and the outer periphery is formed with a border (10d) extending toward the second auxiliary impeller (9), the border (10d) and the shaft hole (10a) A through hole 10b is formed on one side of the circumferential wall portion extending therebetween, while the fluid from the through hole 10b is interposed between the circumferential groove 1b on the outer circumferential surface of the rim 10d and the inner circumferential surface of the casing 1 described above. A guide groove 10e circulating toward the annular passage formed is formed between the through hole 10b and the edge 10d, and the second auxiliary impeller 9 is located at one side of the edge 10d and adjacent to the upper gripping hole 10b. The guide jaw 10c is formed to appropriately restrict the fluid from the side toward the through hole 10b. The third plate 10 has a structure basically similar to that of the first and second plates 4 and 7 described above, but the through hole 10b is different from those of the first and second plates 4 and 7. They are formed at different positions so that the fluid discharged from the suction port 2a can flow to the opposite side in a restricted position different from the first and second plate 4, 7.

The first plate 4, the first guide plate 5, the second plate 7, the second guide plate 8, the third plate 10, and the like described above are the casing 1 and the cover 2 Assembled in sequence in the order shown in the following) and then tightening between the casing (1) and the cover (2) with a plurality of fastening rods (14) to form a close connection with each other in the position shown, completely assembled and fixed In this case, the main impeller (3) and the first and second plate (6) (9), etc. are rotated integrally with the shaft on the pump shaft (11) separately from the components assembled in a fixed state as described above. It is installed to achieve a state in which the rotation operation in the same direction at the same time along the rotation of the shaft 11 in each impeller chamber during the pump operation.

In a preferred embodiment, between the cover 2 and the first plate 4, between the first plate 4 and the first guide plate 5, between the first guide plate 5 and the second plate 7, A suitable packing means may be inserted between the second plate 7 and the second guide disc 8, respectively.

On the other hand, the bearing element required for the rotational operation of the pump shaft (11) and the propellers (3) (6) (9), etc. are omitted here for convenience of illustration.

In the drawings, reference numeral 13 denotes a washer, 15 denotes a fastening nut for the fastening bar 14, and 17 denotes a motor.

In the following it will be described in detail the operating relationship of the present invention configured in this way.

The pump of the present invention constructed and assembled as described above has a main impeller 8, a first guide disc 5 and a second in the impeller chamber between the cover 2 and the first plate 4 during operation of the pump. In the impeller chamber between the diaphragms 7, the first auxiliary impeller 9 is pumped in the impeller chamber between the second guide disc 8 and the third plate 10, respectively. At the same time, the main impeller (3) is located in the impeller chamber in which the main impeller (3) is located, and a strong suction force is generated by the main impeller (3) to cover the storage fluid from the vacuum tank. It is sucked into the main impeller chamber through the suction port (2a) of the.

In this way, the fluid drawn into the main impeller chamber flows through the inner surfaces of the wings of the main impeller 3 and the edge 4d of the first plate 4 by the suction power of the main impeller 3, and then the first plate 4. The first guide plate 5 and the second plate, on which the first auxiliary impeller 6 is positioned, through the through hole 4b of the through hole 4b and the distribution hole 5a of the first guide plate 5 extending to the through hole 4b. 7) flows into the impeller chamber between, and the first auxiliary impeller 6 in this way is strongly forced out again and again to the fluid flow into the impeller chamber to the second plate 7 on the opposite side.

Furthermore, the fluid pressurized by the first auxiliary impeller 6 toward the second plate 7 as described above is the through hole 7b of the second plate 7 and the second guide plate soft to the through hole 7b. 8) between the second guide disk 8 and the third plate 10, in which the second auxiliary impeller 9 is positioned at a position different from the distribution position to the first auxiliary impeller chamber through the distribution 8a. It flows into the impeller of the interior, the second auxiliary impeller (9) is forced to draw back the strong flow back to the third plate 10 on the opposite side.

As described above, the fluid pressurized to the third plate 10 by the second auxiliary impeller 9 is again passed through the through hole 10b of the third plate 10 and the guide groove 10e soft to the through hole 10b. The casing 1 flows into the annular passage between the inner circumferential surface and the outer circumferential surface of the edge 10d of the third partition 10 and is finally sent out to the desired place through the light outlet 1a in the annular passage.

In performing this series of fluid delivery actions, the pump of the present invention has a space in which the pump has a first plate 4, a first guide plate 5, a second plate 7, and a second guide disc as described above. (8) on the first plate 4, which is divided into several spaces by components such as the third plate 10, and these spaces allow the fluid to pass through at different positions, respectively. The through hole 4b, the distribution hole 5a on the first guide plate 5, the through hole 7b on the second plate 7, the distribution hole 8a on the second guide plate 8, and the third plate 10 The through-holes 10b on the upper and lower surfaces allow fluids to flow to adjacent spaces only at limited positions, thereby effectively preventing backflow of the fluids introduced into the spaces to the spaces above them, and at the same time, vacuuming these spaces. Negative pressure from the tank moves from the space on the cover (2) side to the space on the casing (1) side. Increasingly, the negative pressure from the vacuum tank hardly acts in the final space in the pump in which the second auxiliary impeller 9 is located.

As a result, the fluid flowing into the final space inside the pump where the second auxiliary impeller 9 is located is absorbed and the suction output of the main impeller 3 under the condition that the negative pressure from the vacuum storage tank hardly acts. The first and second auxiliary impeller (6) (9) is pumped toward the outlet (1a) with a strong propulsion force added to the pressure of the addition.

Therefore, the pump of the present invention is capable of pumping the storage fluid in the vacuum tank in which the strong negative pressure acts as the above-described characteristic pumping action to the desired place while maintaining the vacuum storage state as it is. In the case of pumping the storage fluid in the vacuum tank to another place, it is necessary to adjust the inside of the tank to atmospheric pressure as usual and then pump it, and to make the inside of the tank vacuum again after pumping, and the extra trouble required for such work. There is no need for any means, and it has the outstanding advantage of keeping the above fluid in the required vacuum storage condition during pumping. The pump of the present invention is particularly important for the pumping of fluid reservoirs that require vacuum storage, such as chemicals that may deteriorate or cause undesirable reactions when stored in contact with air. It is an industrially useful design.

Claims (1)

Between the cover 2 with the inlet port 2a and the casing 1 with the outlet port 1a, a second plate 4 having a main impeller 3, a through hole 4b and a guide jaw 4c; In the through hole (4b) has a first guide disk (5) having a combined distribution hole (5a), guide groove (5c), the first auxiliary impeller (6), through hole (7b), guide jaw (7c) A second guide plate 8 having a second plate 7, a distribution hole 8a soft to the through hole 7b, a guide recess 8c, a second auxiliary impeller 9, and a through hole 10b. , The vacuum storage is installed by assembling the third plate 10 having a guide groove (10e) in order to be installed so that the impeller (3) (6) (8) is integrally rotated in one direction simultaneously with the pump shaft (11) Pump for delivery.