JP4377149B2 - Valve integrated pump and pump station - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a valve-integrated pump.And pump stationAbout.
[0002]
[Prior art]
Conventionally, vertical pumps have been installed in river pumping stations to drain water. FIG. 5 is a view showing an example of a pump station (drainage station) 200 having a plurality of vertical shaft pumps 100 of this type, FIG. 5 (a) is a plan view thereof, and FIG. 5 (b) is a side view thereof. As shown in the figure, this pump station 200 is constructed in the vicinity of a water channel 250 such as a river, and is configured by installing a plurality of (three in the figure) vertical shaft pumps 100 in parallel.
[0003]
Each vertical shaft pump 100 includes a pump casing including a suction bell mouth 102, a suspension pipe 106, a discharge casing 103, and the like, and a shaft with an impeller (not shown) is accommodated in the pump casing. The upper part of the shaft protrudes from the upper part of the discharge casing 103 and is connected to the prime mover 109 via the transmission 108. Further, a discharge side pipe 101 is further connected to the discharge casing 103 of each vertical shaft pump 100, thereby connecting the discharge end of the pipe 101 to the discharge water tank 110. A stop valve 104 is provided in the middle of the pipe 101 so that the water in the discharge water tank 110 does not flow back to the vertical shaft pump 100, and a check valve 105 is attached to the discharge end of the pipe 101.
[0004]
When the prime mover 109 is driven, the impeller in the pump casing rotates, the water in the inflow water passage 251 branched from the water passage 250 is sucked in from the suction bell mouth 102, and the sucked liquid is discharged from the discharge casing 103 on the discharge side. It is discharged into the discharge water tank 110 through the pipe 101.
[0005]
However, when a plurality of vertical pumps 100 are installed as in the pump station 200 shown in FIG. 5, it is necessary to provide a discharge-side pipe 101 for each vertical pump 100. In this case, in order to prevent the vertical pumps 100 and the discharge-side piping 101 from crossing each other, it is necessary to arrange the inflow water channel 251 and the discharge water tank 110 linearly with respect to the vertical pumps 100 installed in parallel. Therefore, it is necessary to increase the width of the inflow water channel 251 and the discharge water tank 110 branched from the water channel 250, and the installation area of the pump station 200 is increased by the arrangement of the inflow water channel 251 and the discharge water tank 110. was there.
[0006]
[Problems to be solved by the invention]
  The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a valve-integrated pump that facilitates the installation layout of a plurality of pumps and requires a small installation area.And pump stationIs to provide.
[0008]
[Means for Solving the Problems]
  In order to solve the above problems, claim 1 of the present application.According to the invention, the discharge casing and the head cover are provided with a discharge casing having a shape that opens in an upward direction so that an inner diameter thereof is widened, and a head cover that is disposed in the center of the discharge casing and has a shape that opens upward. The discharge part of the discharge casing is formed in the gap between the two and the discharge part is a vertical shaft pump that is open toward the entire circumference, and a part of the head cover is movable in the vertical direction. A valve-integrated pump comprising a valve mechanism for opening and closing the discharge part.
  Since the valve mechanism is installed in the discharge part of the discharge casing with such a structure, valves such as a water stop valve and a check valve separately installed from this pump, and the discharge connected to the pump for the installation of these valves Side piping is not required. Therefore, even when a plurality of pumps are installed, the discharge water discharged from each discharge casing only needs to be directly connected to one discharge water channel. For this reason, the installation area of the pump in a facility (for example, a pump station) where a plurality of pumps are provided can be reduced.In addition, the self-pressure water described below means the water with the pressure which flows through the inside of a pump casing and is discharged from the discharge part of this pump casing.
[0009]
  Also this applicationClaim 2The invention according to claim 1 is characterized in that the valve mechanism is opened and closed by self-pressure water or external power.1It is a valve integrated pump of description.
[0010]
  Also this applicationClaims 1, 2According to the invention, since the valve mechanism integrated with the pump can be configured by using a part of the head cover, the size can be reduced.
[0011]
  Also this applicationClaims 1, 2According to the present invention, it is possible to freely design the direction of the discharge water channel connected to the discharge unit, thereby reducing the installation area of the pump station and the degree of freedom of the installation layout of the pump station. Spread.
[0012]
  Also this applicationClaim 3The invention according to claim 1 is directed to the lower frame of the watertight structure installed in the upper part of the water absorption tank.2The discharge casing of the valve-integrated pump described above is fixed, an upper base with a watertight structure is installed above the lower base, a water channel is formed between the lower base and the upper base, and this water channel is connected to the discharge water tank. The pump station is characterized in that the water in the water absorption tank sucked from the suction port of the discharge casing is discharged from the discharge portion of the discharge casing and led to the discharge water tank through the water channel.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic sectional view of a valve-integrated pump 1 according to an embodiment of the present invention. As shown in the figure, the valve-integrated pump 1 is a vertical shaft pump (that is, a valve-integrated vertical shaft pump), and is configured by attaching a cassette-type discharge casing 5 and a suction bell mouth 2 to the top and bottom of a discharge bowl 3. Is housed in a shaft 13 that is rotationally driven by a driving means (not shown) and an impeller 4 attached to the shaft 13. The cassette-type discharge casing 5 is fixed to a lower base 8 having a watertight structure, and an upper base 9 having a watertight structure is installed on the upper part of the lower base 8 by a column 10. A water channel 11 is provided between the lower base 8 and the upper base 9. Is formed.
[0014]
The Casa type discharge casing (discharge casing) 5 has a cylindrical shape, the lower end of which is formed to be connected to the upper end of the discharge bowl 3 and has a shape that opens so that its inner diameter gradually expands upward, that is, a Casa type. Is formed.
[0015]
A head cover 6 (61, 65) is installed at the center of the bevel-type discharge casing 5. The head cover 6 includes a central fixed portion 61 and a movable portion 65 on the outer peripheral side (upper side) thereof. The head cover 6 has a cylindrical shape as a whole, and the shaft 13 is inserted through the center of the head cover 6. It is formed in a shape that gradually opens (increases in diameter), thereby forming a discharge portion 5 a in the gap with the above-mentioned Casa type discharge casing 5. The fixed portion 61 has a support portion 61a that supports the shaft 13 therein. On the other hand, the movable portion 65 has a main body portion 65a whose diameter increases upward, a support portion 65b that protrudes in a cylindrical shape upward from the lower end on the inner peripheral side of the main body portion 65a, and a support. The connecting portion 65c protrudes inward in the horizontal direction from the upper end side of the portion 65b. The connecting portion 65c is provided with a screw hole 65d, and a screw rod 7 that is rotationally driven by a drive motor (driving machine) M fixed to the upper frame 9 is screwed into the screw hole 65d. When the screw rod 7 is rotationally driven by the drive motor M, the movable portion 65 moves up and down, and when the movable portion 65 moves to the upper end as shown by the solid line in the figure, the main body portion 65a and the bulk type discharge casing. When the movable portion 65 moves to the lower end as shown by the dotted line in the figure, the main body portion 65a and the support portion 65b block the discharge portion 5a and close it. That is, by configuring the movable portion 65 that is a part of the head cover 6 so as to be movable in the vertical direction, a valve mechanism that functions as a check valve and a water stop valve is configured by opening and closing the discharge portion 5a. Thus, since the valve mechanism integrated with the valve integrated pump 1 is configured using the movable portion 65 which is a part of the head cover 6, the valve integrated pump 1 can be downsized.
[0016]
Next, in order to drive the valve-integrated pump 1, the shaft 13 and the impeller 4 are moved by driving the driving means (not shown) while the movable portion 65 is raised by the drive motor M and the discharge portion 5a is opened. The water that is rotationally driven and sucked from the suction port 2a of the suction bell mouth 2 is discharged from the discharge portion 5a of the discharge casing 5 and led to the water channel 11 formed between the upper frame 9 and the lower frame 8. . Here, in this valve-integrated pump 1, the discharge casing 5 and the head cover 6 are configured so that the discharge portion 5a opens in the entire circumferential direction. For this reason, when this valve-integrated pump 1 is driven, water is discharged from the entire circumference of the discharge casing 5. By adjusting the position of the movable portion 65, the opening amount of the discharge portion 5a can be adjusted to control the water discharge amount.
[0017]
On the other hand, when the valve-integrated pump 1 is stopped, the drive means (not shown) is stopped to stop the rotation of the shaft 13 and the impeller 4, and the movable portion 65 is lowered by the drive motor M to close the discharge portion 5a. In this way, the flow of water is blocked, and the reverse flow of water discharged to the water channel 11 side is prevented.
[0018]
In the above embodiment, the shape of the discharge part 5a is configured to open toward the entire circumferential direction, but may instead be configured to open to an arbitrary fixed direction.
[0019]
FIG. 2 is a view showing an example of a pump station (drainage station) 80 configured using this valve-integrated pump 1, FIG. 2 (a) is a plan view, and FIG. 2 (b) is a side view. As shown in the figure, this pump station 80 is laid adjacent to a water channel 20 such as a river, and a plurality of (three in the figure) valve-integrated pumps 1 are connected to the water channel 20 from the upstream to the downstream of the water channel 20. It is configured by installing in parallel. A single water tank 30 is installed in the lower part of these three valve-integrated pumps 1, and the water tank 30 has three water intakes 31 provided directly on the side wall of the water channel 20 from upstream to downstream. It is comprised so that the water of the water channel 20 may be taken in toward a direction orthogonal to a flow.
[0020]
On the other hand, the discharge side of the three valve-integrated pumps 1 connects the water channel 11 of each valve-integrated pump 1 as a single discharge water channel 40 by a civil engineering structure, and a discharge water tank at one end downstream of the discharge water channel 40. 50, and further connected from the discharge water tank 50 via a discharge dredge 55 to, for example, another river where the water channel 20 joins. In addition, 15 is a prime mover (driving means) for driving the valve-integrated pump 1, 16 is a reduction gear connected between the prime mover 15 and the shaft 13 (see FIG. 1), 17 is a machine-side operation control panel, and 18 is a simple roof. , 19 is a switching gate.
[0021]
For example, when another river or the like where the water channel 20 merges increases and there is a possibility of backflow into the water channel 20, the river or the water channel 20 that merges is blocked by a gate (not shown), and at the same time as necessary A number of valve-integrated pumps 1 are driven to pump water flowing in the water channel 20 from the water absorption tank 30 to the discharge water channel 40 and forcibly drain it to a river or the like that merges through the discharge water tank 50 and the discharge trough 55.
[0022]
By the way, in the present embodiment, since the valve mechanism is provided in the valve-integrated pump 1 itself, as in the conventional example shown in FIG. And the discharge-side pipes 101 connected to the vertical pumps 100 are not necessary for the installation of these valves, and there are no restrictions due to the installation layout of these pipes 101, and a plurality of valve-integrated pumps 1 are installed. However, the discharge water discharged from each discharge portion 5a only needs to be directly connected to one discharge water channel 40. Therefore, the installation area of the valve-integrated pump 1 can be reduced in a facility where a plurality of valve-integrated pumps 1 are provided as in the pump station 80 shown in FIG. Further, as shown in FIG. 2, even when water is taken from the water channel 20 to the pump station 80 at a right angle, the discharge water tank 50 can be installed close to the water channel 20, and the length of the discharge water pipe 55 is shortened. In this respect, the space of the pump station 80 can be reduced.
[0023]
In particular, as in the valve-integrated pump 1 according to this embodiment, if the discharge portion 5a is formed in a shape that opens in the entire circumferential direction (or a shape that opens in an arbitrary fixed direction), it is connected to this. It becomes possible to freely design the direction of the discharge water channel 40 in any direction, and this can also reduce the installation area of the pump station 80 and increase the degree of freedom of the installation layout of the pump station 80.
[0024]
3 and 4 are enlarged cross-sectional views showing the main parts of the movable portions 65-2 and 65-3 of the head cover and the operation thereof according to another configuration of the present invention. That is, the movable portion 65 shown in FIG. 1 is of a type that uses the driving force of the drive motor M for both the opening operation and the closing operation of the discharge portion 5a. However, the movable portion 65-2 shown in FIG. The movable portion 65-3 shown in FIG. 4 is a type that opens and closes the discharge portion 5a without using the drive motor M at all.
[0025]
That is, the movable portion 65-2 shown in FIG. 3 is provided with a convex locking portion 65-2c on the inner peripheral side of the support portion 65-2b, and the screw rod 7 is screwed on the upper surface of the locking portion 65-2c. The lower end of the combined pressing member 12 is installed oppositely. When the movable portion 65-2 closes the discharge portion 5a, the pusher member 12 is moved downward by driving the drive motor M and rotating the screw rod 7 as shown in FIG. The lower end is brought into contact with the upper surface of the locking portion 65-2c, and the movable portion 65-2 is pushed down to close the discharge portion 5a. When the discharge portion 5a is opened, as shown in FIG. 3B, the drive motor M is driven and the screw rod 7 is rotated in the reverse direction, thereby raising the pressing member 12 to a predetermined height and engaging portions 65-2c. Remove contact with. When the pump is driven and water is pumped into the discharge casing 5, the upper surface of the locking portion 65-2c is moved by the pressure of the water pumped into the discharge casing 5 as shown in FIG. When the movable portion 65-2 is pushed up to a position where it comes into contact with the lower end of the pressing member 12, the discharge portion 5a is automatically opened.
[0026]
Moreover, the movable part 65-3 shown in FIG. 4 has a configuration in which the drive motor M is not installed, and the head cover 65-3 is simply attached so as to be movable up and down. And as shown to Fig.4 (a), when water is not pumped by the discharge casing 5, the movable part 65-3 closes the discharge part 5a and is closed by falling to the lower end with the dead weight. On the other hand, when the pump is driven and water is pumped into the discharge casing 5 as shown in FIG. 4B, the movable portion 65-3 is pushed up by the pressure of the pumped water, so that the discharge portion 5a is Open automatically.
[0027]
Next, an embodiment in which this valve-integrated pump 1-2 is applied to a submersible motor pump is shown in FIG. 6, parts corresponding to those of the valve integrated pump 1 shown in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted. The valve-integrated pump 1-2 shown in FIG. 6 has a discharge-type discharge casing 5 as in the case of the valve-integrated pump 1, and a head cover 6 (61, 65) is installed at the center of the cover-type discharge casing 5. ing. A submersible motor 71 is attached to an upper portion of the fixing portion 61 of the head cover 6, and the submersible motor 71 is configured to drive the shaft 13.
[0028]
This valve-integrated pump 1-2 has a suction-type discharge casing 5 attached to the bottom 73b of the pump column 73 so that the suction port 2a of the suction bell mouth 2 is located in the water-absorbing tank 30, and the discharge portion 5a is a pump. It is installed in a state of being located inside the column 73. The pump column 73 is configured by connecting a bottom portion 73 b to a lower end of a cylindrical side wall 73 a that is suspended and fixed to a bottom portion 72 of the discharge water channel 75, and an upper surface is open to the discharge water channel 75. Reference numeral 76 denotes a maintenance hatch.
[0029]
To operate the valve-integrated pump 1-2, the submersible motor 71 is driven to rotate the shaft 13 and the impeller 4 attached thereto, and the suction bell mouth 2 has a suction port 2a. Inhale water. Then, the sucked water is discharged from the discharge portion 5 a into the pump column 73 to push up the discharged water to the height of the discharge water surface 74. On the other hand, in order to stop the valve-integrated pump 1-2, the submersible motor 71 is stopped to stop the rotation of the shaft 13 and the impeller 4, and the movable part 65 of the head cover 6 is lowered to discharge the discharge part 5a. Shut off the water flow by closing. This prevents water discharged into the pump column 73 from flowing back into the pump casing. Since the shape and operation of the head cover 6 are the same as those of the valve-integrated pump 1, the detailed description thereof is omitted. Thus, by providing the valve mechanism at the discharge part of the column type submersible motor pump, it is not necessary to attach a separate discharge pipe.
[0030]
  In FIG.Reference exampleThe valve integrated pump 1-3 concerning is shown. The valve-integrated pump 1-3 shown in FIG. 7 constitutes a valve mechanism by attaching an on-off valve (flap valve) 83 to the discharge part 5a of the pump casing. Specifically, a pump casing including a suction bell mouth 2, a discharge bowl 3, a discharge casing 5 and the like is provided, and an impeller 4 attached to a shaft 13 is accommodated in the pump casing. The shaft 13 is attached to a speed reducer 81, and another shaft 82 is attached to the speed reducer 81. The shaft 82 is further connected to driving means (not shown).
[0031]
The discharge casing 5 of the valve-integrated pump 1-3 has eight (or a plurality of other) discharge portions 5 a that are equally arranged in a circumferential shape and open toward the discharge water tank 84. An opening / closing valve 83 having a shape for closing each discharge portion 5a is attached to the discharge portion 5a by a hinge portion 83a. The on-off valve 83 is configured to open and close by the pressure of the self-pressure water discharged from the discharge portion 5a through the discharge casing 5, or to open and close by external power. The on-off valve 83 constitutes a valve mechanism of the discharge unit 5a. The discharge part 5a may have any shape as long as it has a shape opening in a plurality of arbitrary directions.
[0032]
In order to operate the valve-integrated pump 1-3, the shaft 82 is rotated by driving a driving means (not shown), and the shaft 13 and the impeller 4 are rotated via the speed reducer 81. Thereby, the water in the water tank 30 is sucked into the pump casing from the suction port 2 a of the suction bell mouth 2, and is discharged into the discharge water tank 84 from each discharge portion 5 a of the discharge casing 5. On the other hand, in order to stop the valve-integrated pump 1-3, the driving means is stopped to stop the rotation of the shaft 13 and the impeller 4, and the on-off valve 83 is closed to close the discharge port 5a. Prevent backflow. Thus, the on-off valve 83 integrally attached to the discharge part 5a functions as a water stop valve and a check valve. Therefore, there is no need for valves such as a water stop valve and a check valve separately from the pump, or piping on the discharge side connected to the pump in order to install these valves.
[0033]
  Figure 8Other reference examplesIt is a schematic sectional drawing which shows the valve | bulb integrated pump 1-4 concerning. Similarly to the valve-integrated pump 1-3, the valve-integrated pump 1-4 shown in FIG. 8 forms a valve mechanism by attaching an open / close valve (flap valve) 83 to the discharge portion 5a of the pump casing. Specifically, a pump casing including a suction bell mouth 2, a discharge bowl 3, a suspension pipe 90, a discharge casing 5 and the like is provided, and the impeller 4 attached to the shaft 13 is accommodated in the pump casing. ing. The shaft 13 is attached to a speed reducer 81, and another shaft 82 is attached to the speed reducer 81. The shaft 82 is further connected to driving means (not shown).
[0034]
The discharge casing 5 of the valve-integrated pump 1-4 has eight (or other plural) discharge portions 5a that are equally arranged in a circumferential shape and open toward the discharge water channel 40. An opening / closing valve 83 having a shape for closing each discharge portion 5a is attached to the discharge portion 5a by a hinge portion 83a. The on-off valve 83 is configured to open and close by the pressure of the self-pressure water discharged from the discharge portion 5a through the discharge casing 5, or to open and close by external power. The on-off valve 83 constitutes a valve mechanism of the discharge unit 5a. The discharge part 5a may have any shape as long as it has a shape opening in a plurality of arbitrary directions.
[0035]
In order to operate this valve-integrated pump 1-4, a driving means (not shown) is driven to rotate the shaft 82, and the shaft 13 and the impeller 4 are rotated via the speed reducer 81. Thereby, the water in the water tank 30 is sucked into the pump casing from the suction port 2a of the suction bell mouth 2, and is discharged into the discharge water channel 40 from each discharge portion 5a of the discharge casing 5. On the other hand, in order to stop the valve integrated pump 1-4, the rotation of the shaft 13 and the impeller 4 is stopped by stopping the driving means, and the discharge port 5a is closed by closing the on-off valve 83. Prevent backflow. Thus, the on-off valve 83 integrally attached to the discharge part 5a functions as a water stop valve and a check valve. Therefore, there is no need for valves such as a water stop valve and a check valve separately from the pump, or piping on the discharge side connected to the pump in order to install these valves.
[0036]
  Figure 9Still other reference examplesFIG. 9A is a schematic cross-sectional view, and FIG. 9B is a schematic diagram of DD in FIG. 9A. Also in the valve-integrated pump 1-5 shown in FIG. 9, a valve mechanism is configured by attaching an on-off valve (flap valve) 83 to the discharge portion 5a of the pump casing. Specifically, a pump casing including a suction bell mouth 2, a discharge bowl 3, a suspension pipe 90, a discharge casing 5 and the like is provided, and the impeller 4 attached to the shaft 13 is accommodated in the pump casing. ing. The shaft 13 is attached to a speed reducer 81, and another shaft 82 is attached to the speed reducer 81. The shaft 82 is further connected to driving means (not shown).
[0037]
In the case of this valve-integrated pump 1-5, the discharge casing 5 has a cylindrical shape, and the discharge portion 5a is configured to open upward. That is, the discharge part 5a faces upward. Further, the discharge part 5a is provided at two symmetrical positions on the left and right. An opening / closing valve 83 having a shape for closing the discharge portion 5a is attached to the discharge portion 5a by a hinge portion 83a so that the connecting rod 83b fixed to the hinge portion 83a and the drive portion 83c are connected by a link mechanism 83d. Then, by driving the drive unit 83c, the connecting rod 83b is rotated via the link mechanism 83d to open and close the on-off valve 83. For example, a motor, a hydraulic drive device, a pneumatic drive device, or the like is used as the drive unit 83c. The on-off valve 83 constitutes a valve mechanism of the discharge unit 5a.
[0038]
In order to operate this valve-integrated pump 1-5, the shaft 82 is rotated by driving a driving means (not shown), the shaft 13 and the impeller 4 are rotated via the speed reducer 81, and at the same time, the driving unit 83c is operated. The on-off valve 83 is opened by driving. Thereby, the water in the water absorption tank 30 is sucked into the pump casing from the suction port 2a of the suction bell mouth 2, and is discharged into the discharge water channel 40 from the discharge portion 5a of the discharge casing 5. On the other hand, in order to stop the valve-integrated pump 1-5, the driving means is stopped to stop the rotation of the shaft 13 and the impeller 4, and the driving portion 83c is driven to close the on-off valve 83. The discharge port 5a is blocked to prevent the backflow of water. Thus, the on-off valve 83 integrally attached to the discharge part 5a functions as a water stop valve and a check valve. Therefore, there is no need for valves such as a water stop valve and a check valve separately from the pump, or piping on the discharge side connected to the pump in order to install these valves.
[0039]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. Note that any shape or structure not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are achieved. For example, in the above-described embodiment, the movable portion 65 (65-2, 3), which is a part of the head cover 6, is configured to move in the vertical direction, so that the discharge portion 5a is opened and closed to check valves and water stop valves. Although the valve mechanism having the above function is configured, a valve mechanism may be separately provided on the discharge side of the head cover 6 without using a part of the head cover 6. Further, the shape of the movable portion 65 is not limited to the above-described shape, and may be any shape as long as it has an opening / closing function of the discharge portion 5a. Further, the discharge portion 5a of the casket-type discharge casing 5 is not limited to a structure opening toward the entire circumferential direction, but may be configured to face a predetermined circumferential direction in the entire circumferential direction.
[0040]
【The invention's effect】
As described in detail above, according to the valve-integrated pump according to the present invention, the installation layout of a plurality of pumps can be easily performed, and the installation area can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of a valve-integrated pump 1 according to an embodiment of the present invention.
FIGS. 2A and 2B are diagrams showing an example of a pump station (drainage station) 80 configured using the valve-integrated pump 1, FIG. 2A is a plan view, and FIG. 2B is a side view.
FIG. 3 is an enlarged cross-sectional view showing a main part of a movable portion 65-2 and its operation according to another configuration of the present invention.
FIG. 4 is an enlarged cross-sectional view showing a main part of a movable portion 65-3 and its operation according to another configuration of the present invention.
FIGS. 5A and 5B are diagrams showing an example of a pump station 200 in which a plurality of conventional vertical shaft pumps 100 are installed. FIG. 5A is a plan view and FIG. 5B is a side view.
FIG. 6 is a view showing an embodiment when the valve-integrated pump of the present invention is applied to a submersible motor pump.
[Fig. 7]Reference exampleIt is a schematic sectional drawing of the valve integrated pump 1-3 concerning.
[Fig. 8]Other reference examplesIt is a schematic sectional drawing which shows the valve | bulb integrated pump 1-4 concerning.
FIG. 9Still other reference examplesFIG. 9A is a schematic cross-sectional view, and FIG. 9B is a schematic diagram of DD in FIG. 9A.
[Explanation of symbols]
1 Valve integrated pump
1-2 Valve integrated pump
1-3 Valve integrated pump
1-4 Valve integrated pump
1-5 Valve integrated pump
2 Suction bell mouth
3 Dispensing bowl
4 impeller
5 Casa type discharge casing (or discharge casing)
5a Discharge part
6 Head cover
61 Fixed part
65 Moving parts
7 Screw rod
8 Lower stand
9 Upper frame
10 props
11 waterway
12 Pressing member
13 Shaft
15 prime mover
16 Reducer
17 Machine operation control panel
18 Simple shed
19 Switching gate
20 waterways
30 Water absorption tank
31 Water intake
40 Discharge channel
50 Discharge water tank
55 Discharge soot pipe
71 Submersible motor
72 Bottom of discharge channel
73 Pump column
74 Discharge water surface
75 Discharge waterway
76 Maintenance hatch
80 Pump station
81 reducer
82 shaft
83 On-off valve
84 Discharge water tank
65-2 Movable parts
65-3 Movable part

Claims (3)

A gap between the discharge casing and the head cover is provided by including a discharge casing having a shape that expands so that the inner diameter of the discharge casing expands upward, and a head cover that is disposed at the center of the discharge casing and opens upward. The discharge portion of the discharge casing is formed in the vertical pump, which is a shape that opens toward the entire peripheral portion,
A valve-integrated pump comprising a valve mechanism that opens and closes the discharge section by making a part of a head cover movable in a vertical direction. The valve-integrated pump according to claim 1, wherein the valve mechanism is opened and closed by self-pressure water or external power. The discharge casing of the valve-integrated pump according to claim 1 or 2 is fixed to a lower base of a watertight structure installed at an upper part of the water absorption tank,
Install a watertight upper pedestal on top of the lower pedestal, form a water channel between the lower gantry and the upper gantry and connect this water channel to the discharge water tank.
A pump station, wherein water in a water absorption tank sucked from a suction port of a discharge casing is discharged from a discharge part of the discharge casing and led to the discharge water tank through the water channel.

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