KR101088531B1 - Vertical spare pump for fire-fighting - Google Patents

Abstract

PURPOSE: A vertical secondary pump for firefighting is provided to minimize the vibration generated during a power transmission process. CONSTITUTION: A vertical secondary pump for firefighting comprises a pumping part(100), a motor(300), a connection case(200), a first bolt, a second bolt, a mounting plate(510), a support leg(520) and a buffer member(530). The pumping part comprises a pump case(110) and an impeller(120). A pumping space(112), in which the fluid is pumped, is located on top of the pump case. The impeller is arranged in the pumping space to rotate. The motor is arranged in the outside of the pump case. The motor comprises a motor shaft which is expanded and arranged toward the impeller through the pump case. The connection case comprises the first flange part, the second flange part and a connection part. A second bolt is combined in the second base aperture. The mounting plate is densely arranged in the lower-part of the pump case.

Description

VERTICAL SPARE PUMP FOR FIRE-FIGHTING}

The present invention relates to a vertical auxiliary pump for fire fighting in a building or the like.

Generally, mandatory fire pumps are provided in apartments and industrial buildings.

Fire pumps are basically divided into main pumps used in case of emergency and auxiliary pumps used when main pumps cannot be operated due to breakdown.

In general, the main pump is selectively installed in various pumping capacities in consideration of the size and structure of the building, whereas the auxiliary pump is used in case of emergency, and most of the same types are used without considering the pumping capacities.

Such a general fire auxiliary pump has a structure in which the motor shaft and the drive shaft of the pump are connected to the outside through separate couplers.

In other words, the driving force of the motor is transmitted to the pump drive shaft through the coupler, thereby operating the structure in which the impeller installed in the pump drive is rotated.

However, since the motor shaft and the pump driving shaft are separate from each other, the coupler must be provided for power transmission between the motor and the pump, and bearings must be installed at both ends of the pump driving shaft for smooth driving of the pump driving shaft. The parts required for driving are inevitably consumed.

In addition, as the number of parts is large, the manufacturing and installation process is inevitably complicated, and the production cost is also increased.

In addition, since the motor shaft and the pump driving shaft exist separately, if the pump impeller is required to be repaired, the motor must be separated and the pump driving shaft must be separated from the pump. Has

In addition, in order to secure the installation space of the coupler inevitably the motor and the pump must be installed in a state spaced apart a certain distance, so the overall volume is increased, there is also a disadvantage that takes a lot of installation space.

In addition, as the motor shaft and the pump driving shaft are indirectly connected through the coupling, the overall length of the power transmission path is not only long, but also the vibration is greatly generated in the power transmission process due to the indirect connection structure between the motor shaft and the pump driving shaft.

In addition, conventionally, the pump drive shaft is to be provided separately, so that the packing portion for controlling the fluid leakage in the pump is installed, conventionally this packing is a simple planar structure, so the phenomenon of corrosion due to fluid leakage frequently occurs.

In addition, since the bearings must be provided inevitably at both ends of the pump drive shaft, the fluid inside the pump may be leaked through the point where the pump bearing is installed.

In the past, the motor and the pump are simultaneously seated on a separate seating frame, and the seating frame is seated on a separate damping plate again. However, at the point where the vibration damping plate is formed in the ground, concrete should be poured to form an installation point.

Therefore, it is necessary to go through the concrete pouring process and the curing process of concrete, which has the disadvantage of delaying the installation process as a whole.

The present invention is proposed to solve the problems including the above problem,

It aims to provide a vertical auxiliary pump for firefighting, which has a simpler structure than the conventional one, which simplifies manufacturing and installation and reduces manufacturing costs.

In addition, by simplifying the separation and assembly structure compared to the conventional to provide a vertical fire pump for easy maintenance.

In addition, the overall width is reduced compared to the existing to provide a vertical auxiliary pump for fire fighting easy to install in a relatively narrow space.

And to provide a vertical auxiliary pump for firefighting that can minimize the vibration intensity in the driving process compared to the conventional.

In addition, it is to provide a vertical auxiliary pump for firefighting to prevent corrosion, such as to effectively prevent the leakage of fluid inside the pump with a simple structure.

In addition, it proposes a supporting structure of a simple structure compared to the existing to provide a vertical auxiliary pump for firefighting installation process is simplified.

The present invention proposed to achieve the above object, the pumping space is formed therein, the pump suction space is formed in one side connected to the pumping space and the other side is formed in the pump case, the pumping space is formed in the pumping space An impeller, a motor located on one side of the pump case, and a motor shaft which is drawn out of the motor and penetrates the impeller through the pump case.

And it is located between the pump case and the motor, one side may further include a connection case connected to the pump case and the other side is connected to the motor outer surface.

In addition, the connection case may be connected to be detachable from at least one of the pump case and the motor.

The connection case may include a first flange part detachably connected to the pump case, a second flange part facing the first flange part and connected to the motor so as to be detachable from the pump case, and the first flange part and the first flange part. It may include a connecting portion connected between the two flange portion connecting the first, second flange portion.

In addition, one end portion may be connected to the first flange portion and the other end portion may be connected to the second flange portion in a state where a space portion is formed therein.

In addition, the first flange portion may be installed in a form surrounding the point where the motor shaft is penetrated among the pump cases.

The motor shaft may further include a mechanical seal surrounding the motor shaft on one side of the point where the impeller is installed.

And the upper end is connected to the pump case and the lower end may further include a support leg seated on the ground, a buffer member formed on the bottom surface of the support leg.

The present invention having these various embodiments,

As the impeller is installed directly on the motor shaft with the motor shaft inserted directly inside the pump with the pump shaft omitted, the components such as couplers and bearings can be omitted. Has the advantage of being.

Therefore, not only the production and installation is simplified, but also the space occupied by the entire apparatus is significantly reduced, compared to the existing auxiliary pump, and the product cost is reduced.

And since the pump driving shaft is omitted and the impeller is directly connected to the motor shaft, the disassembly process of the pump driving shaft and the bearing is omitted during maintenance, and thus the separation and assembly work is easy, so that the maintenance is easy. Have

In addition, since the driving force of the motor is directly transmitted to the impeller, the vibration generated in the power transmission process is minimized.

In addition, since the installation space of the coupler is unnecessary, the motor can be manufactured in a state attached to the pump case, and as a result, the entire volume is reduced, thus having an advantage of being easily installed in a narrow space compared to the existing one.

In addition, the use of mechanical sealing rather than the conventional simple face packing has the advantage of improving the fluid leakage blocking effect in the pump.

In addition, as the support bridge having the anti-vibration rubber is directly connected, the installation structure and the installation process are simplified compared to the conventional one.

1 is an overall exploded schematic view of the present invention;
Figure 2 is a schematic view of the overall coupling cross section
Figure 3 is a bottom schematic view showing the structure of the support leg
Figure 4 is a cross-sectional schematic diagram showing the flow path of the fluid in the pumping space

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated by like reference numerals throughout the specification.

Fire pump vertical auxiliary pump of the present invention as shown in [Fig. 1] to [4] large pumping unit 100 and the connection case 200, motor 300, motor shaft 310 and the support unit 500 It includes.

First, the pumping part 100 is a part in which the inflow and outflow of external fluid is made, and includes the pump case 110 and the impeller 120 again.

The pump case 110 serves as a casing of the pumping unit 100 as the name, the pumping space 112 is located inside the impeller 120 and the motor shaft 310 to change the direction of the fluid and to be described later ) Is formed.

The fluid inlet 114 through which the external fluid flows into the pumping space 112 is connected to the pumping space 112 on one side, and the fluid outlet for discharging the fluid in the pumping space 112 back to the outside on the other side. 116 is formed.

In this case, the fluid inlet 114 and the fluid outlet 116 are formed in a mutually perpendicular state in an adjacent state, as shown in the figure, the fluid inlet 114 is formed to face the front or rear and the fluid outlet 116 is perpendicular to this It is formed to face the side.

The reason why the fluid inlet 114 and the fluid outlet 116 are formed in such a structure is that an impeller described later in the pumping space 112 is introduced into the fluid through the fluid inlet 114 as shown in FIG. 3. It is to be discharged after being rotated by approximately 360 degrees by the 120, so as to form a large pressure difference between the pumping space 112 and the outside by the impeller.

And the upper surface of the pump case 110, the shaft hole 118 for inserting the motor shaft 310 to be described later is formed.

In addition, the impeller 120 constituting the pumping part 100 together with the pump case 110 functions to substantially intake and discharge the fluid in the pumping part 100, and a structure used in a general Wesco pump is used. do.

The impeller 120 is installed and driven by a motor shaft 310 to be described later in a state located in the pumping space 112 of the pump case 110.

In this case, the impeller 120 is installed to rotate in a manner of sweeping around the boundary point between the fluid inlet 114 and the pumping space 112 and the boundary point between the fluid outlet 116 and the pumping space 112 during the rotation process. The fluid introduced through the fluid inlet 114 is rotated along the rotation path of the impeller and then discharged to the fluid outlet 116.

The connection case 200 is connected to the pumping part 100 including the impeller 120 and the pump case 110.

The connection case 200 serves as a connection function of the pump case 110 and the motor 300 to be described later. At one side, a first flange portion 210 coupled to the pump case 110 is formed and the opposite end is described later. A second flange portion 220 fastened to the motor 300 is formed, and the first and second flange portions 210 and 220 have a structure connected by the connection portion 230.

In this case, the first flange 210 has a first through hole 212 formed therein for the passage of the motor shaft 310 to be described later in the center, and the first fastening hole for fastening with the pump case 110 around the through hole. 214 is formed.

The first flange 210 is positioned to be seated on the upper surface of the pump case 110, so that the first through-hole 212 is located on the same line as the shaft hole 118 of the pump case 110. That is, the first flange 210 is installed in a state surrounding the shaft hole 118 of the pump case 110.

In this state, the first flange 210 is separated from the pump case 110 as the first bolt 216 passes through the first through hole 212 and then is fastened to the pump case 110. It has a combined structure.

In this case, although not shown in the drawing, a separate sealing member may be formed between the first flange portion 210 and the pump case 110 to prevent foreign substances from entering the pump case 110 from the outside.

In this state and the second flange portion 220 has the same structure as the first flange portion 210, that is, a second through hole 222 is formed in the center for the motor shaft 310 to be described later through the second flange A second fastening hole 224 for fastening with the motor 300 is formed around the through hole 222.

The second flange portion 220 is positioned above the first flange portion 210 while maintaining a predetermined distance from the first flange portion 210 and in a form surrounding the lower surface and a part of the side of the motor 300. It is connected to the motor.

In this state, the second flange 220 is coupled to the motor 300 in a detachable state as the second bolt 226 passes through the second through hole 222 and then is fastened to the motor 300. Has

The connecting portion 230 constituting the first and second flange portions 210 and 220 and the connection case 200 serves to connect the first and second flange portions 210 and 220, and a space portion therein. 232 is formed and the upper and lower ends are open.

The connection part 230 has a lower end connected to the upper surface of the first flange portion 210 by welding or bolt, and the upper end connected to the lower surface of the second flange portion 220 through welding or bolt. That is, the pump case 110 and the motor 300 to be described later are connected to each other so as to be separated from each other through the first and second flange portions 210 and 220 and the connection portion 230.

For reference, the structure of the connection case 200 is not limited to the above-described structure, and may be variously modified. For example, the connection part 230 may be omitted, and the first and second flange parts 210 and 220 may be directly connected to each other. It may also be implemented as a structure.

In this case, the gap between the motor 300 and the pump case 110 can be narrowed as much as possible, thereby reducing the overall width of the foot.

That is, the connection case 200 may be implemented in any of a variety of structures as long as it can connect the pump case 110 and the motor 300 to be described later.

The motor 300 is connected to the second flange portion 220 of the connection case 200.

The motor 300 serves as a substantial driving source of the auxiliary fire pump of the present invention. A general AC motor is used, and a DC motor may be used depending on the pumping capacity of the pumping part 100 to be described later.

The motor 300 is fixed through the second bolt as described above after the lower surface is positioned in a state seated on the upper surface of the second flange portion 220.

In this case, the motor shaft 310 of the motor 300 extends downwardly from the lower surface of the motor 300 so that the second through hole 222 of the second flange portion 220 and the space portion 232 of the connecting portion 230. ), Through the first through hole 212 of the first flange portion 210 and the shaft hole 118 of the pump case 110 sequentially and then through the center of the impeller 120 in the pumping space 112. .

Therefore, the impeller 120 has a structure that is rotated in the pumping space 112 by the motor shaft 310.

The end of the motor shaft 310 penetrating the impeller 120 is located in the pumping space 112 does not penetrate the opposite surface of the pump case 110.

The mechanical shaft 400 is installed in the motor shaft 310 installed as described above.

The mechanical seal 400 serves as a sealing to prevent the fluid introduced into the pumping space 112 from leaking out of the pump case 110 along the outer surface of the motor shaft 310, and uses a simple surface sealing material. Unlike the prior art, the present invention has the advantage that the leak of the fluid can be completely blocked by using a mechanical seal having a relatively superior sealing effect.

As the motor 300 and the pumping part 100 are connected to the above structure, the motor 300 has a state in which the motor 300 is erected on the upper surface of the pump case 110 as shown in the drawing, that is, a standing structure.

As a result, the width of the right and left is much narrower than the structure in which the motor and the pump case are connected in the lateral direction, and thus, the motor and the pump case are easily installed even in a narrow space.

The support part 500 is installed in the pump case 110 connected to the motor 300.

The support part 500 serves to cushion the vibration generated during the operation of the pump case 110 and the operation of the pump case 110, and includes a seating plate 510, a support leg 520, and a shock absorbing member 530. .

Among them, the seating plate 510 is a part which is directly fastened with the pump case 110 of the support part 500, and is located in a state of being in a simple plate shape and having an upper surface closely attached to the lower surface of the pump case 110. In this state, it is fixedly coupled to the pump case through a third bolt 512 or the like.

In addition, the support leg 520 serves as a substantially supporting function, and has a simple rod shape, and the upper end is connected to the seating plate 510 and the lower end is installed on the ground.

The support legs 520 are formed in the form of a plurality of radially extending toward the four sides of the seating plate 510 as shown in Figure 3, each support leg 520 has a slope of about 45 degrees As it is built on the ground, it ensures a wider support area.

And the buffer member 530 constituting the support portion 500 together with the support leg 520 and the seating plate 510 absorbs the vibrations acting as a whole during the operation of the present invention to prevent the occurrence of noise and a decrease in life due to the vibration. In playing a role to minimize,

Block form made of a material having a cushioning function, such as rubber and is seated on the ground in the state of being fastened to each lower end of each support leg (520).

In this state, as the fourth bolt 532 passes through each of the support legs 520 and the buffer member 530 at the same time and is inserted into the ground, the entire apparatus is fixed on the ground.

For reference, in addition to the simple block shape described above, the shock absorbing member 530 may be used in various ways as long as the structure can suppress and absorb vibration such as a spring or a cylinder structure.

Therefore, in the present invention, since the buffer structure is implemented in the form in which the support leg 520 and the buffer member 530 are directly connected to the ground, the entire device is fixed as compared to the conventional technology consisting of a seating frame, a dustproof plate, and a concrete block structure. And the buffer structure is much simpler.

As described above, the present invention basically includes an impeller 120 directly connected to the motor shaft 310 in a state in which the motor shaft 310 extends to the inside of the pump case 110, including a pump driving shaft that has been previously used. Since the coupler is omitted, the structure is much simpler than the conventional structure, which makes it easy to manufacture and the manufacturing cost can be significantly lowered.

In addition, this narrows the gap between the motor 300 and the pump case 110, and thus, another structural feature is that the overall volume is reduced compared to the existing.

In addition, since the motor and the pump case are stably connected through separate connection cases, another structural feature is that stable operation is possible even if a separate interaxial coupler is omitted.

In addition, as described above, it is another structural feature that simplifies the buffer structure of the entire device as compared to the conventional.

Hereinafter will be described the operation of the embodiment and the effects generated in the process by the above configuration.

First, the motor shaft 310 is rotated by the motor 300 and the impeller 120 is rotated together. As a result, the pressure in the pumping space 112 is significantly lowered compared to the external pressure. Due to the external fluid is introduced into the pumping space 112 through the fluid inlet 114.

At this time, the fluid passes through the fluid inlet 114 and at the same time sweeps around the pumping space 112 along the rotational path of the impeller 120 blades passing through it and then discharged to the outside through the fluid outlet 116 do.

As this process is repeated continuously, the pumping of the fluid continues.

In this process, as the motor shaft 310 is directly connected to the impeller 120, a phenomenon in which the driving force of the motor is attenuated while passing through the coupler and the pump driving shaft is prevented, so that a relatively stable and high output power is applied to the impeller. Can be delivered.

In addition, as the space occupied by the coupler is omitted, the length of the power transmission path from the motor 300 to the impeller is shortened, so that vibration and noise are inevitably reduced.

In the pumping process, the fluid in the pumping space 112 tries to move outward along the outer surface of the motor shaft 310.

However, at this time, since the mechanical seal 400 having a very high sealing force surrounds the motor shaft 310, leakage of fluid may be completely blocked.

And in the process of the pumping is applied to the vibration as a whole device, it is transmitted to each of the buffer member 530 through the support bridge 520, the ground absorption is extinguished.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts defined in the following claims are also within the scope of the present invention. It belongs to.

100: pumping unit 110: pump case
112: pumping space 114: fluid inlet
116: fluid outlet 118: shaft hole
120: impeller 200: connection case
210: first flange portion 212: first through hole
214: First fastening work 216: First bolt
220: second flange portion 222: second through hole
224: 2nd fastener 226: 2nd bolt
230: connection portion 232: space portion
300: motor 310: motor shaft
400: mechanical seal 500: support
510: mounting plate 512: third bolt
520: support leg 530: cushioning member
532 fourth bolt

Claims (8)

A pumping part including a pump case having a pumping space in which fluid is pumped and an upper portion of the pump case, and an impeller rotatably disposed in the pumping space;
A motor disposed outside the pump case and including a motor shaft extending toward the impeller via the pump case;
A first flange portion having a shape corresponding to an upper surface of the pump case and formed with a first fastening hole to be engaged with the pump case, and having a first through hole for insertion of the motor shaft, and a shape corresponding to the lower surface of the motor; And a second fastening hole formed to be fastened to the motor and having a second through hole for inserting the motor shaft, and disposed between the first to second flange parts and the first to second flange parts. A connection case including a connection part provided to connect the flange parts to each other;
A first bolt coupled to the first fastening hole;
A second bolt coupled to the second fastening hole;
A seating plate disposed in close contact with the bottom surface of the pump case;
A support leg having one end connected to the seating plate and the other end extending downward; And
Vertical auxiliary fire pump comprising a buffer member provided on the lower end of the support leg. delete In claim 1,
The connecting case is connected to at least one of the pump case and the motor vertically fired auxiliary pump. delete In claim 1,
And one end portion is connected to the first flange portion and the other end portion is connected to the second flange portion in a state where a space portion is formed therein. In claim 1,
The first flange is a vertical auxiliary pump for fire which is installed in the form of wrapping around the point through which the motor shaft of the pump case penetrated. In claim 1,
The vertical auxiliary pump for firefighting further comprising a mechanical seal surrounding the motor shaft on one side of the point where the impeller of the motor shaft is installed. delete

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