JPH04362296A - Liquid feeding device - Google Patents

Abstract

PURPOSE:To reduce the dimension and weight and improve the degree of freedom in installation by making equal in length the continuous side of a rectangular shaped bottom plate on which a pump is fixed and making one side of a package covering the pump, etc., equal to one side of the bottom plate, and forming a cubic form. CONSTITUTION:Two units of pumps 102 and 106 are arranged in parallel on the upper surface of a bottom plate 301 which is formed to a square shape having the length of one side of LO. Each suction pipe 102S, 106S and each discharge pipe 102E, 106E are arranged on each pump 102, 106. Further, a converse pipe 111 is connected with each check valve 105, 106 connected with each discharge pipe 102E, 106E, and a pressure tank 110 and a pressure sensor 114 are connected with the converge pipe 111. While, a controller 112 is arranged on the opposite side surface to the discharge port 111D of the converge pipe 111, and a panel surface 113 is faced to the opened port part formed on a package 201. The package 201 is formed from a plurality of side surface panels 210A-201H which are demountable and a ceiling panel 201J.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention applies to
This invention relates to a package-type liquid supply device with a cover attached to the surface.

0002

[Prior art] January 1976, Ministry of Construction Notification No. 1597
Laws and regulations regarding water tanks were implemented under the Act. The main contents of the regulation are that the water tank is prohibited from being used as a building frame, and that a 600mm surrounding area is required as maintenance space for the water tank.
The above requirements must be ensured and the structure must be able to be inspected on all six sides.

[0003] As a result, the liquid supply device has been made smaller and lighter, and in order to clearly distinguish between the machine room space and the pump installation space, it has been constructed as a package that simply has a cover attached to the pump. is being carried out.

[0004] Design No. 57 is an example of such a package shape.
There is a liquid supply device shown in No. 8349.

[0005]

[Problems to be Solved by the Invention] Conventional packaged liquid supply devices do not take into account ease of installation, and are shaped like a rectangular parallelepiped with a rectangular floor surface. Furthermore, if it becomes necessary to change the piping route (suction/discharge direction) or the position of the panel surface due to a change in plans after it has been brought into the machine room, it is not possible to take immediate action. If construction is carried out forcibly, the number of bends (elbows) in the piping will increase, leading to problems such as increased material costs and increased man-hours.

An object of the present invention is to provide a liquid supply device with a high degree of freedom in installation, which can easily accommodate changes in the installation location due to changes in plans, by reducing the size and weight of the liquid supply device and making it cubic. be.

[0007]

[Means for Solving the Problems] In order to achieve the above object, a pump, a control device for the pump, a pressure tank connected to a discharge pipe of the pump, and a substantially rectangular shape to which at least the pump is fixed are provided. In a water supply system equipped with a bottom plate, the lengths of adjacent sides of the bottom plate are approximately equal, so that even if the installation location changes due to a change in plans, the position of the water pipes in the equipment and the panel surface of the control device can be easily adjusted. Configure it so that it can be changed.

[0008]

[Operation] As mentioned in the prior art, the circumference of the water tank is 600 mm.
If this space is provided, the liquid supply device etc. will generally be installed near the entrance of the door, considering maintainability. In order to be installed in this space and to use the space most effectively, the optimal shape for the liquid supply device is a cubicle. Moreover, if the planar center of the cubicle (in this case, the center of the ceiling cover) is taken as the virtual center, the installation position can be adjusted by rotating it in 90 degree increments around the virtual center and moving it up, down, left or right as necessary. Furthermore, the water distribution pipes in the liquid supply device and the panel position of the control device are changed in accordance with the suction and discharge piping route of the pump in the machine room (if any changes occur). This makes it possible to install it even in a small machine room (pump room), making effective use of space, and even if the installation location changes due to changes in plans, the intake and discharge piping and control device panel surface can be changed freely.

[0009]

Embodiments Hereinafter, embodiments of the present invention will be explained with reference to FIGS. 1 to 16.

In this embodiment, the liquid supply device has a structure in which a pump, a control device for the pump, and a suction pipe and a discharge pipe of the pump are housed in a substantially cubic package.

FIGS. 1 and 2 show the configuration of this embodiment. Two pumps 10 are mounted on a square bottom plate 301 with one side L0.
2, 106 are fixed in parallel. Pumps 102, 10
6 are each equipped with suction pipes 102S and 106S, and each discharge pipe 102E and 106E is equipped with a check valve 105.
, 108 are connected.

The check valves 105 and 108 have a confluence pipe 111.
A pressure tank 110 and a pressure sensor (a pressure switch may also be used) 11 are connected to the confluence pipe 111 in a detachable manner.
4 are connected via branch pipes. A discharge port 111D is provided at one end of the confluence pipe 111. The merging pipe 111 is detachably connected to the flanges of the check valves 105 and 108 with bolts, so that the direction of the discharge port 111D can be changed.

In this embodiment, the flow direction of water changes from the check valves 105 and 108 to the confluence pipe 111.
The connecting portion and the portion extending from the merging pipe 111 to the pressure tank 110 via the branch pipe are bent at right angles. Therefore, it is not necessary to use an elbow with a large radius, and the dimensions of the piping portion can be reduced.

The control device 112 is provided on a surface opposite to the surface on which the discharge port 111D is provided. A panel surface 113 of the control device 112 is provided facing an opening provided in the package 201.

In this embodiment, the package 201 includes a plurality of removable side panels 201A, 201B, 201C,
It consists of 201D, 201E, 201F, 201G, 201H and a ceiling panel 201J. Note that in FIG. 1, illustration of the side panels 201E, 201F, 201G, and 201H is omitted.

[0016] Side panels 201A, 201C, 201E
, 201G are provided with a window-like opening 208 and a notch-like opening 207, and the opening 208 is used as an opening for the panel surface 113 of the control device 112 in the panel 201A, and in the panels 201C, 201E, and 201G. Here, the opening 208 is provided with a ventilation port 203 . On the other hand, the notch 207 is closed by the cover 204 attached to the panels 201A, 201C, and 201G, and is an opening through which the confluence pipe 111 passes through the panel 201E.

[0017] Side panels 201B, 201D, 201F
, 201H are provided with a notch-shaped opening 206, and panels 201B, 201F, and 201H are provided with a ventilation opening 202a.
, 202b is attached to the opening 206, and in the panel 201D the suction pipes 102S, 1
This is the connection opening for 06S.

Note that the ventilation port 203, the cover 204, and the cover 202 are all provided in a detachable manner.

These side panels 201A to 201
H, and the ceiling panel 201J are attached with screws 2 to the supports 301B attached to the bottom plate 301, as shown in FIG.
50 and hanging bolts 210, and has an appearance as shown in FIG.

In this embodiment, the width L1, depth L2, and height L3 of the cubicle are all set to be equal.

FIG. 3 shows a diagram of the water supply device of this embodiment, and the area surrounded by the one-dot chain line is stored in the package. In the figure, 101 is a water tank, 103 is a suction pipe, 109 is a water pipe, and 107 and 104 are gate valves for inspection.

Water in the water tank is pumped up by pumps 102 and 106, and is sent to a faucet at a demand end (not shown) via a water pipe 109.

The control device 112 has a built-in microcomputer, which controls the discharge pressure to be constant, predicts and automatically avoids falling water, predicts abnormal stoppage of the pump, and switches the operating equipment, etc. Prevents pressure rise and pressure drop at startup.

[0024] As a result, in this embodiment, the discharge pressure is controlled to be constant, so a pressure reducing valve is not required, and a check valve is only required in the liquid supply device, thereby reducing the size of the device. be able to.

FIG. 6 is an external view of the liquid supply device of this embodiment with the package cover 201 attached.
indicates the width of the liquid supply device, dimension B indicates the depth, and dimension H indicates the height. I is a plan view, J is a front view, and K is a right side view.

[0026] The positions of the pump suction ports 102S and 106S of the device are determined based on the dimensions of A1, A2, and H1.
3. Due to the dimensions of B1 and H2, the outlet 11D of the device
determine the position of Further, point P indicates the virtual center of the device.

When planning equipment, the shape of the cubicle, that is, the volumetric dimensions A×B×
Since it is only necessary to know the position of H and the center of the inlet and outlet ports, the design planning work is easy.

FIGS. 7 to 10 show the internal structure of the liquid supply device of this embodiment. 7 is a plan view, FIG. 8 is a front view, FIG. 9 is a right side view, and FIG. 10 is a rear view.

As will be explained in detail later, parts are arranged in advance so that the positions of the suction and discharge ports of the liquid supply device and the panel surface of the control device can be changed.

FIG. 11 shows a pump 10 used in this embodiment.
2,106 is shown. Pump parts 102P, 106
P is the shaft 102J, 106J of electric motor 102M, 106M
The suction pipes 102S, 106S are connected directly to the motor and have suction pipes 102S, 106S opened in the axial direction at the end opposite to the motor, and the discharge pipes 102E, 1 are opened in the direction perpendicular to the axis near the connection part with the motor.
It has 06E.

The electric motors 102M and 106M have stators 102K and 106K and rotors 102R and 106R inside, and the rotors 102R and 106R have blades 10 at their axial ends.
2W and 106W, and are fixed to shafts 102J and 106J.

The electric motors 102M, 106M are provided with vents 102U, 106U and 102V, 106V at the lower part of the housing provided on the outer periphery, and as the rotor rotates, the vents 10 at the ends are closed by the blades 102W, 106W.
Air is sucked in from 2U and 106U and exhausted from vents 102V and 106V in the center.

In this embodiment, the electric motors 102 and 106 rotate clockwise when viewed from the back side, so the package 201
Air currents as shown by arrows in FIG. 12 are formed inside. That is, in FIG. 12, the ventilation port 202 on the motor 102 side
The air sucked in from a and 202b is sucked in from the vent 102U of the electric motor 102, cools the inside, and then passes through the vent 1.
Exhausted from 02V. This air is sucked into the vent 106U of the electric motor 106, cools the inside, and then passes through the vent 106U.
It is discharged from 6V.

Due to the rotational direction of the electric motor 106 and the temperature increase due to the heat generated by the electric motor, the discharged air is directed upward, and the portion below the control device 112 provided above the electric motor 106 has the highest temperature. Since the package 201 is provided with a ventilation port 202a facing this portion, high-temperature air is discharged to the outside of the package from the ventilation port 202a at the upper left side of the electric motor 106. In addition, the ventilation port 202b
The air sucked in from the electric motor 102 is sucked into the vent 106U of the electric motor 106 together with the exhaust air from the electric motor 102, cools the inside, and then is discharged from the vent 106V.

A portion of the air discharged from the electric motors 102, 106 passes through the package as an upward airflow and is discharged from the upper ventilation opening 203.

In this embodiment, electric motors 102, 1 serve as heat sources.
06 is provided at the bottom, airflow due to natural convection is generated within the package, increasing the cooling effect.

Note that when the internal heat generation amount is large, a configuration may be adopted in which a blower is provided in the ventilation port 202a or the ventilation port 203 to perform forced cooling.

An example in which the direction of the merging pipe 111 and the direction of the discharge port 111D are changed in this embodiment will be explained with reference to FIGS. 13 and 14. In this embodiment, since the pressure tank 110 and the pressure sensor 114 are connected to the center of the connecting portion of the merging pipe 111 to the flanges of the check valves 105 and 108 via a branch pipe, the direction of the merging pipe 111 is Even if the pressure tank 110 and the pumps 102 and 106 are changed, the positional relationship between the pressure tank 110 and the pumps 102 and 106 can be kept the same. In this case, the control device 112
may be moved to the side of the pump 102 so that the piping connected to the discharge port 111D does not get in the way of operation.

[0039] Also, the pressure tank 110 and the pressure sensor 1
14 can share the branch pipe, so only one branch pipe is required.
The structure of the merging pipe 111 is simplified, and the number of manufacturing steps can be reduced.

FIG. 15 shows changes in the discharge direction of the discharge water supply pipe 111 inside the liquid supply device and the direction of the panel surface 113 of the control device 112 in order to correspond to the above-mentioned installation variations.

Reference numeral 601 in FIG. 15 shows a liquid supply device in a normally installed state, with a discharge port provided on the left side of the suction pipe and a control device provided on the right side. 602 is a discharge port and a control device 11 on the left side with respect to the suction pipe.
2. This is a liquid supply device with 2. Reference numeral 603 denotes a liquid supply device in which a discharge port is provided on the right side of the suction pipe and a control device is provided on the left side. Reference numeral 604 denotes a liquid supply device in which a discharge port and a control device 112 are provided on the right side of the suction pipe.

FIGS. 16 and 17 show variations (aspects on the installation plane) when installing the liquid supply device in the machine room during equipment planning, or how to deal with the installation when a change in plan occurs.

Diagram A in FIG. 16 shows a state in which the liquid supply device 601 is used in a normally installed state. That is, in FIG. 16, the door is located at the lower right in the figure, and the water tank is located on the left. It is clear that if a 600 mm space is secured around this, the right side of the water tank will inevitably become the installation space for the equipment. If the equipment is planned using the liquid supply device 601 diagram, it will be roughly as shown in Figure A.

[0044] Then, the panel of the control device will be in front of the room entered through the door. The liquid supply device consists of suction pipes 401 and 40.
2 is connected to the water receiving tank, and the demand side is the discharge pipe 40.
3, equipment design becomes simple and easy.

Furthermore, since the interior is a black box, it has the effect of giving the impression that it is psychologically simple. Furthermore, in the same figure, the installation is free within the range that can be translated downward in the figure.

[0046] Figure B is an example in which the suction pipe needs to be placed in the upper part of the figure due to a change in the plan.

[0047] This is installed by rotating Figure A by 90 degrees clockwise around the virtual center. in this case,
Using the liquid supply device 602, the control device is moved to the opposite side so that the wall side is set as the panel position. Of course, it is assumed that there is a maintenance space on the right wall.

FIG. C shows suction pipes 408, 4 at the bottom of the figure.
09 is an example, and the liquid supply device 60 is centered around the virtual center.
1 rotated 90 degrees counterclockwise.

FIG. 6D shows an example in which the liquid supply device 602 is installed at the lowest position in the figure, and the discharge pipe 407 is piped toward the right side wall.

[0050] Figure E shows an example in which the liquid supply device 602 is installed at the lowest position in the figure, and the discharge pipe 407 is piped toward the right side wall.

[0051] Figure F is an example in which the liquid supply device 602 is installed at the lowest position in the figure, and the discharge pipe 407 is piped toward the lower wall.

As described above, in this embodiment, the position of the control device panel surface and the discharge direction can be changed as necessary. This allows the position of the water pipes within the device to be changed to minimize piping materials and work man-hours, and furthermore, the installation can be easily changed so that the panel surface of the control device faces the front. Moreover, not only can the space in the machine room be used effectively, but also the installation can be done according to the condition of the piping route, which has the effect of saving material costs.

As described above, by making the liquid supply device cubicle structure and reversing the position of the control device panel surface and the discharge direction, the degree of freedom in installation is increased, and the size and weight can be reduced (for example, 600 mm cubic, 100 kg or less). Since this can be realized, the space in the machine room can be used effectively.

[0054] Furthermore, there is an effect that equipment design is facilitated.

The present invention is not limited to the embodiments described above, and the bottom plate may be configured so that when rotated by a predetermined angle, it has a shape that substantially matches the bottom shape of the bottom plate before rotation. For example, the bottom shape may be a regular polygon or a circle. Further, depending on the conditions of the installation location, the shape may be a substantially equilateral triangle. Even in this case, the maximum external dimension is 60 mm on a side.
It is desirable to fall within the range of a 0 mm cube.

[0056]

According to the present invention, it is possible to obtain a liquid supply device with a high degree of freedom in installation, which can easily accommodate changes in the installation position due to changes in plans.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the internal structure and appearance of a liquid supply device according to the present embodiment.

FIG. 2 is a perspective view showing the internal structure of the liquid supply device of this embodiment.

FIG. 3 is a configuration diagram of a liquid supply device in one embodiment of the present invention.

FIG. 4 is an exploded perspective view showing the structure of the liquid supply device of this embodiment.

FIG. 5 is a perspective view showing the appearance of the liquid supply device of this embodiment.

FIG. 6 is an external view of the liquid supply device of this embodiment.

FIG. 7 is a plan view showing the internal structure of the liquid supply device of this embodiment.

FIG. 8 is a front view showing the internal structure of the liquid supply device of this embodiment.

FIG. 9 is a right side view showing the internal structure of the liquid supply device of this embodiment.

FIG. 10 is a rear view showing the internal structure of the liquid supply device of this embodiment.

FIG. 11 is a side sectional view showing the configuration of the pump of the liquid supply device of this embodiment.

FIG. 12 is a rear view showing airflow inside the liquid supply device of this embodiment.

FIG. 13 is an external view of the liquid supply device of this embodiment.

FIG. 14 is a perspective view showing the internal structure of the liquid supply device of this embodiment.

FIG. 15 is a structural diagram showing variations in the direction of the discharge water supply pipe and the panel surface of the liquid supply device of this embodiment.

FIG. 16 is a plan view showing the installation state of the liquid supply device of this embodiment.

FIG. 17 is a plan view showing how the liquid supply device of this embodiment is installed.

[Explanation of symbols]

101: Water tank, 102, 106: Pump, 103: Suction pipe, 104, 107: Gate valve, 105, 108
: Check valve, 109: Water pipe, 110: Pressure tank, 1
11: Discharge water supply pipe, 112: Control device, 113: Panel surface

Claims (9)

[Claims] Claim 1: A water supply device comprising a pump, a control device for the pump, a pressure tank connected to a discharge pipe of the pump, and a substantially rectangular bottom plate to which at least the pump is fixed, wherein the bottom plate A liquid supply device characterized in that the lengths of adjacent sides are approximately equal. 2. The apparatus according to claim 1, further comprising a package that covers the pump, the control device, and the pressure tank, and the package has a cubic shape with one side approximately equal to a side of the bottom plate. Liquid supply device. 3. The supply system according to claim 1, further comprising a package that covers the pump, the control device, and the pressure tank, and each side of the package is composed of a removable panel. liquid equipment. 4. The water supply device according to claim 3, wherein the panels on each side have the same dimensions and the same mounting pitch, and are configured to be compatible with each other. 5. The water supply device according to claim 2, wherein the cube has a side dimension of 60 cm. 6. The pump includes a suction pipe, the suction pipe is provided opposite to an opening in a panel provided on one side of the package, and the discharge direction of the discharge pipe is opposite to the suction pipe. The liquid supply device according to claim 1, characterized in that the liquid supply device has a structure that can be selectively set on one of the surfaces orthogonal to the surface on which the pipe is provided. 7. A pump having a suction pipe at one end, a motor connected to the other end, and a discharge pipe between the suction pipe and the motor, a bottom plate for fixing a plurality of the pumps, and a control device for the pump. , in a water supply device equipped with a pressure tank connected to a discharge pipe of the pump, the plurality of pumps are installed in parallel on the bottom plate, and the plurality of pumps, the control device, and the pressure tank are connected to each other. A package to cover and a confluence pipe having a discharge port at one end are connected to each other, and a branch pipe is provided approximately in the center between the connection part of the confluence pipe with the discharge pipe, and the branch pipe is provided with the above pressure. A tank and a pressure detection means connected to the control device are connected, the pressure tank is disposed above the electric motor, the suction pipe is disposed below one side of the package, and the discharge port is connected to the suction pipe. A liquid supply device characterized in that it is disposed at a position above the suction pipe on one of the surfaces adjacent to the surface provided with the suction pipe. 8. The liquid supply device according to claim 7, wherein the package has air circulation means disposed facing a portion that becomes high temperature due to heat generated by the electric motor. 9. A water supply device comprising a pump, a control device for the pump, a pressure tank connected to a discharge pipe of the pump, and a bottom plate to which at least the pump is fixed, wherein the bottom plate is rotated by a predetermined angle. A liquid supply device characterized in that it has a shape that substantially matches the bottom shape of a bottom plate before rotation.