JPH02164906A - Gate pump equipment and its operating method - Google Patents

Abstract

PURPOSE:To facilitate removal of foreign matter from a screen at the time of draining operation and make it possible to retract the screen automatically at the time of natural flowing-down by arranging a gate pump whose screen operates vertically, interlocking with the vertical movement of the gate. CONSTITUTION:This equipment is arranged so that the pump 1 integral with a gate 2 and a screen 5 can operate downward together and can be set in a water passage 10 when the gate 2 is operated downwards at the time of draining operation. As the result, its lower end removes the foreign matter adhering to a screen 5 on the upstream side from the upper end. On the other hand, at the time of natural flowing-out, the screen 5 is pulled up and retracted together with the gate 2 and the pump 1 to prevent foreign matter from adhering to the screen. Moreover, the screen 5 is fixed on a footing 11 provided separately so that it can rotate smoothly and is interlocked with the gate 2 with a wire or the like, and use of an automatic dust collector and a foreign matter discharge plate removes foreign matter automatically.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to gate pump equipment and its operating method applied to waterway drainage such as small waterways and small rivers, and particularly to gate pump equipment that requires space saving. Urban small waterways.

It is suitable for drainage pump equipment for small rivers.

[Conventional technology]

As a conventional device of this kind, Japanese Patent Application Laid-Open No. 52-136401
c) There are those described in the official gazette and Japanese Patent Application Laid-Open No. 56-588:3.

[Invention or problem to be solved]

In the device described in JP-A-52-1.36401, since the pump suction part is provided with a screen,
Foreign matter easily adheres to the pump and it quickly becomes clogged, making long-term pump operation impossible. Particularly, when a large amount of foreign matter flows in, such as during a flood, the screens are not noticeably clogged by the foreign matter, resulting in a reduction in drainage volume or inability to drain water. Furthermore, if the water flowing through the waterway is dirty, the position of the screen cannot be determined, and since the screen is spherical, it is difficult to remove foreign matter from the screen.

In addition, the one described in Japanese Patent Publication No. 56-5883 has an independent screen installed upstream of the gate pump, but since the screen is always set in the waterway, foreign objects in the water flowing through the waterway are It had the disadvantage that it was constantly captured by the screen, and the screen quickly became clogged.

The first object of the present invention is to provide gate pump equipment and gate pump equipment that can easily remove foreign matter from the screen even during pump operation, and that can automatically evacuate the screen from the waterway during gravity flow when pump operation is not required. It's all about learning how to drive.

[Means to solve the problem]

In order to achieve the above object, the features of the gate pump equipment of the present invention are as follows: a pump for discharging water to the waterway; and a flat screen provided upstream of the pump, set in the waterway in conjunction with the downward movement of the gate, and retracted above the waterway in conjunction with the upward movement of the gate. It's about being prepared.

Other features of the present invention include a gate that is movable up and down to open and close a waterway, a pump that is attached to the gate and discharges water from one side of the gate to the other side of the gate, and an upstream side of the pump. and a screen that is provided in the gate and moves up and down in conjunction with the up and down movement of the gate, and the screen has a lower end positioned upstream than an upper end when set in the waterway. - Located in pump equipment.

Still other features of the present invention include a gate that is movable up and down to open and close a waterway, a pump that is attached to the gate and discharges water from one side of the gate to the other side of the gate, and a pump that is attached to the upstream side of the pump. a screen that is set in or withdrawn from the waterway in conjunction with the upward movement of the case 1; a dust remover that removes foreign matter adhering to the screen from the screen; and a foreign matter discharge plate for discharging foreign matter to the downstream side of the pump.

Other features of the present invention include a gate that opens and closes a waterway, a pump that is attached to the gate and discharges water from one side of the gate to the other side of the gate, and a pump that is provided upstream of the pump and that opens and closes the gate. A screen that is set in or withdrawn from the waterway in conjunction with the operation, a dust remover that removes foreign matter adhering to the screen from the screen, and a foreign matter that discharges the foreign matter removed by the dust remover to the downstream side of the pump. The gate pump equipment is equipped with a discharge plate.

Still other features of the present invention include: a gate that is movable up and down to open and close a waterway; a pump that is attached to the gate and discharges water from one side of the gate to the other side of the gate; a screen attached integrally and provided on the upstream side of the pump; a dust remover for removing foreign matter that adheres to the screen when the screen is set in the waterway; and a dust remover attached to the gate and removing foreign matter from the screen. The gate pump equipment includes a foreign matter discharge plate that discharges foreign matter removed by the dust remover to the downstream side of the pump.

Other features of the present invention include waterway opening/closing means for opening and closing the waterway;
a pump that discharges water from one side of the waterway opening/closing means to the other side when the waterway opening/closing means is set in a waterway; a foreign matter removing means that is set in or evacuated from the waterway, a foreign matter scraping means that scrapes off foreign matter adhering to the foreign matter removing means, and a foreign matter that discharges the foreign matter scraped off by the scraping means to the downstream side of the pump. The gate pump equipment is equipped with a discharge means.

Furthermore, the characteristics of the method of operating gate pump equipment of the present invention are as follows:
A gate with a pump is set in the waterway, and in conjunction with the movement of the gate, a screen is set at the flow rate of the waterway, and then the pump is driven to drain the water on the second stream side of Days 1-4 into the gate. The purpose is to discharge foreign matter to the upstream side, and to scrape off foreign matter that adheres to the screen during the movement of the pump and discharge it to the upstream side of the gate.

Furthermore, another feature of the operating method of the present invention is that a gate pump equipment that integrates a gate, a pump, and a screen tilted so that the lower end is on the upstream side is attached to the scaffolding of the second waterway so that the upper F can move freely. Attach a dust remover to the scaffold so that the removing part moves up and down parallel to the front surface of the screen,
After placing the gate pump equipment in the waterway, the scraping part of the dust remover is expanded and contracted to scrape off foreign matter adhering to the front surface of the screen, and the scraped foreign matter is discharged to the downstream side. Thereafter, while the scraping part is moved upward and fixed upward, the gate pump equipment is moved upward and evacuated to the lower side of the water channel.

[Effect]

The present invention has the above configuration, and when the pump is operated,
A screen that removes foreign matter from flowing water during operation can be automatically installed in the waterway upstream of the pump, allowing the pump to perform drainage work.

In addition, it is a good idea to make the screen planar so that when the screen is set in a waterway, the lower end of the screen is located upstream of the lower end of the screen. In this case, the foreign matter can be easily removed from above the water surface using a scraper or the like. In particular, if the Goo 1 pump equipment is equipped with a dust remover to automatically remove foreign matter that has adhered to the screen, even if the running water is cloudy and the position of the screen is unknown, it will be possible to ensure that foreign matter that has adhered to the screen is removed. The shell can be removed. Furthermore, by being equipped with a dust remover and a foreign matter discharge plate that discharges the foreign matter removed by the dust remover to the upstream side of the pump, the foreign matter scraped by the dust remover is automatically transferred to the downstream side. This eliminates the need for separate treatment of the scraped foreign matter.

On the other hand, during gravity flow, the gate is moved upwards, but the screen is also retracted above the waterway in conjunction with the upward movement of the gate, so there is no need to periodically remove dust from the screen during gravity flow, and the dust remover is not operated. Since time can be reduced, running costs can be reduced and the life of the gate pump equipment can be extended.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS.

A first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

In the figure, 1 is a submersible mode pump, 2 is a gate 13 to which the submersible mode pump is integrally attached, is a gate drive unit for vertically moving the gate 2, 4 is a flap valve provided in the discharge casing of the pump 1, and 5 is a gate drive unit for vertically moving the gate 2. is a screen provided upstream of the pump 1 and integrally attached to the gate 2.

Figure 1 shows the condition during gravity flow, with pump 1° gate 2. The screen 5 and the screen 5 are retracted above the waterway 10, and the waterway functions as a normal waterway where water naturally flows.

FIG. 2 shows the state during drainage operation. To shift from the gravity flow mode shown in FIG. 1 to the drainage operation shown in FIG. 2, the gate drive unit is driven to move the gate down and set it in the waterway.

The pump 1 and screen 5, which are integrally attached to the gate, also move down as the gate moves down and are set in the waterway. When the pump]- is activated, foreign objects in the flowing water are removed from the screen 5.
The water that has been captured and has foreign matter removed is drained downstream of the gate by the pump 1. The screen 5 is a flat screen whose lower end is located upstream of its upper end when set in the waterway, so even when the pump is in use, foreign matter attached to the screen 5 can be removed from the upper part of the gate. A worker can easily remove it from the scaffold 11 on which it is attached using a scraping tool.

When returning the waterway to a state of natural flow, the gate drive unit 3
By moving the gate 2 by one inch, the pump 1 and the screen 5, which are integrally formed with the gate 2, are also moved upward at the same time, so that the screen can be automatically retracted. In addition, by retracting the screen from the waterway during gravity flow, it is possible to prevent foreign matter from adhering to the screen.
There is no need to remove foreign matter from the screen.

Next, a second embodiment of the present invention will be described with reference to FIGS. 3 and 4. In the figures, parts given the same reference numerals as in FIGS. 1 and 2 indicate the same or corresponding parts. In this embodiment, a screen 5 is installed on a scaffold 1 fixed on a waterway.
The lower end of the gate 2 is connected to the slot 2a of the gate 2 by a wire lobe 7 via a fixed pulley 6. Accordingly, when the gate 2 is moved upward, the screen 5 rotates around point a, and is set to "-0" or evacuated from the water channel 10. Now, as shown in Fig. 4, when the length of the wire rope 7 is adjusted so that the screen 5 is suspended in the waterway with the gate 2 closed (during drainage operation), the gate 2 can be moved upward. Let game 1-2 open (at natural flow)
Then, the screen 5 is retracted above the waterway as shown in FIG.

In this embodiment as well, the same effects as in the first embodiment can be obtained.

A third embodiment of the present invention will be described with reference to FIGS. 5 and 6. In the drawings, parts given the same reference numerals as those in the drawings of the above embodiment indicate the same or corresponding parts. 9 is screen 5
8 is an automatic dust remover that removes foreign matter adhering to the screen from the screen, and 8 is a screen rear foreign matter discharge plate that discharges foreign matter scraped off by the automatic dust remover to the downstream side of the pump.

The foreign matter discharge plate 8 is composed of an inclined plate provided at the rear (downstream side) of the screen 5 , and the upper end of the foreign matter discharge plate 8 is connected to the upper end of the screen 5 . It is constructed so that it is continuous with the surface. The automatic dust remover 9 scrapes off foreign matter adhering to the screen by bringing its scraping portion 9a close to the surface of the screen 5 and moving it up and down parallel to the screen surface. state (during natural flow)
As shown in Fig. 5, the dust remover 9 is installed behind the screen 5 (on the flow side) and parallel to the screen, and when the gate is set in the waterway (during drainage operation), the dust remover 9 is As shown, when the dust remover 9 is operated, the scraping section 9
It is installed so that it can move up and down on the front surface (-1=, stream side) of the screen 5.

During drainage operation, as shown in FIG. 6, the foreign matter scraped up by the automatic dust remover is discharged to the downstream side by the screen rear foreign matter discharge plate 8 tilted toward the downstream side.

At the time of gravity flow, as shown in FIG. 5, the scraping part of the automatic dust remover is moved to the uppermost end, and then the gate 2, which is integrated with the screen 5, is moved above the waterway 10.

According to this embodiment, the above-mentioned first. In addition to the effects of the second embodiment, foreign matter scraped up during drainage operation can be automatically discharged to the downstream side, thereby making it unnecessary to dispose of foreign matter.

A fourth embodiment of the present invention will be described with reference to FIGS. 7 to 10. In the drawings, parts given the same reference numerals as those in the drawings of the previous embodiment indicate the same or corresponding parts. In this embodiment, the pump 1' is a horizontal shaft submersible mode pump, and the pump 1' is fixedly installed at 1° in the waterway. pump"
, ' are formed on both sides of the water channels 10a and 10b, and water flows through these water channels 10a, ], Ob during natural flow. The gate (waterway opening/closing means) 2 has a gate shape as shown in the figure, and is configured to open and close the waterways 10a, 10b by moving them one step at a time. In addition, Figures 7 to 10
Although components such as the screen are not shown in the figure, the screen 5. Foreign matter discharge plate 8. It is equipped with a dust remover 9, and the configuration is the same, so illustration thereof is omitted.

In this embodiment, only the gate and screen are moved above the waterway during natural discharge, and the natural discharge is performed through the openings (10a, 1-Ob) on both sides of the pump. During water loss operation, gate 2 is closed and normal drainage operation is performed.

According to this embodiment, the above first. Second. In addition to the effects of the third embodiment, the capacity of the gate drive section 3 is changed to that of the submersible motor pump 1.
can be reduced by the weight of ′.

A fifth embodiment of the present invention will be described with reference to FIGS. 11 to 13. In the drawings, parts given the same reference numerals as those in the drawings of the above embodiment indicate the same or corresponding parts. In this embodiment, in addition to a gate drive section 3a for driving the gate 2, a vertical drive section 3b is provided for moving the pump 1 downward separately from the vertical movement of the gate 2. Discharge casing 1 for inserting and installing pump 1 in gate 2
a is installed integrally with the discharge casing 1a, and the pump 1 is inserted into and taken out from the discharge casing 1a.

Although components such as screens are not shown in FIGS. 11 to 13 as in the fourth embodiment, the screen 5. shown in FIGS. 5 and 6 is not shown. Foreign matter discharge plate 8. It is equipped with a dust remover 9, and since the configuration of this part is the same as that of the third embodiment, illustration thereof is omitted.

In this embodiment, during natural discharge, the submersible mode pump 1 and gate 2 are moved toward the waterway, as shown in FIG.

When switching from natural discharge to drainage operation, as shown in Fig. 12, first move the gate 2 downward to close the waterway 10, then move the submersible mode pump 1 downward and close the discharge casing 1a. After inserting it into the tank and setting it in the state shown in Fig. 13, draining operation is started.

According to this embodiment, the same effect as the third embodiment can be obtained, and since the gate drive section and the lower drive section of the pump are separated, the submersible mode pump 1 and the gate 2 can be made larger. The effect is that a gate pump facility having a large diameter pump can be realized.

〔Effect of the invention〕

According to the gate pump equipment of the present invention, foreign matter can be easily removed from the screen even during drainage operation by the pump, and especially when equipped with a foreign matter discharge plate, the scraped foreign matter can be discharged downstream. No need to dispose of foreign matter.

Further, according to the present invention, since the screen is configured to move up and down in conjunction with the up and down movement of the gate, the screen can be automatically moved into the waterway by simply operating the gate. A special device for driving the screen is not required. In particular, since the screen can be automatically evacuated from the waterway during gravity flow when no pump operation is required, it is possible to prevent foreign matter from adhering to the screen, making it unnecessary to periodically remove foreign matter from the screen.

Furthermore, with a dust remover and a foreign matter discharge plate, even if the running water is cloudy and you cannot locate the screen,
Foreign matter attached to the screen can be reliably and automatically removed, and the foreign matter removed by the dust remover can be automatically discharged to the downstream side of the pump, that is, the downstream side of the gate, preventing foreign matter from accumulating on the screen surface. Moreover, there is an effect that there is no need to dispose of the scraped foreign matter.

[Brief explanation of the drawing]

FIGS. 1 and 2 illustrate the first aspect of the present invention. FIG. 1 is a hemostasis diagram showing an embodiment, FIG. 1 is a diagram showing a state during gravity flow (natural discharge), FIG. 2 is a diagram showing a state during drainage operation, and FIGS. 3 is a front view showing the embodiment, FIG. 3 is a diagram showing the state during gravity flow, FIG. 4 is a diagram showing the state during drainage operation, and FIGS. 5 and 6 are front views showing the third embodiment of the present invention. In the figures, Fig. 5 shows the state during gravity flow, Fig. 6 shows the state during drainage operation, and Figs. 7 to 10 show the fourth embodiment of the present invention. and Fig. 8 are a front view and a side view, respectively, showing the state during gravity flow, Figs. 9 and 10 are a front view and a side view, respectively, showing the state during drainage operation, and Figs.
FIG. 13 is a front view showing the fifth embodiment of the present invention;
The figure shows the state during gravity flow, FIG. 12 shows the state when switching between gravity flow and drainage operation, and FIG. 13 shows the state during drainage operation. 1.1'... submersible mode pump, 2... gate,
3゜3a...Gate drive unit, 3b...Pump vertical drive unit, 4...Flap valve, 5...Screen, 6...
・Fixed pulley, 7. Wire rope, 8. Screen rear foreign matter discharge plate, 9. Automatic dust remover, 10, 10 a,
], Ob = waterway, 11.12...Scaffolding. Casually? Figure 1: Underwater mole

Claims (1)

[Claims] 1. A gate that is movable up and down to open and close a waterway, a pump that is attached to the gate and discharges water from one side of the gate to the other side of the gate, and a pump that is installed upstream of the pump. and set in the waterway in conjunction with the downward movement of the gate,
Gate pump equipment comprising a flat screen that is retracted above the waterway in conjunction with the upward movement of the gate. 2. A gate that is movable up and down to open and close the waterway, a pump that is attached to this gate and discharges water from one side of the gate to the other side of the gate, and a pump that is installed upstream of the pump and that opens and closes the waterway. 1. A gate pump equipment comprising: a screen that moves up and down in conjunction with the waterway; the screen has a shape such that its lower end is located upstream of its upper end when set in a waterway. 3. The gate pump equipment according to claim 1 or 2, which is provided with an automatic dust remover for removing foreign matter adhering to the screen. 4. A gate that is movable up and down and opens and closes the waterway; a pump that is attached to this gate and discharges water from one side of the gate to the other side of the gate; and a pump that is installed upstream of the pump and that opens and closes the water channel a screen that is set in or withdrawn from the waterway in conjunction with the movement of the screen; a dust remover that removes foreign matter adhering to the screen from the screen; and a foreign matter that discharges the foreign matter removed by the dust remover to the downstream side of the pump. Gate pump equipment equipped with a discharge plate. 5. The gate pump equipment according to claim 4, wherein the foreign matter discharge plate is an inclined plate provided at the rear of the screen. 6. The gate pump equipment according to claim 5, wherein the upper end of the foreign matter discharge plate is connected to the upper end of the screen, and the surface of the screen is continuous with the surface of the foreign matter discharge plate. 7. A gate that opens and closes the waterway; a pump that is attached to the gate and discharges water from one side of the gate to the other side of the gate; and a pump that is installed upstream of the pump and opens and closes the waterway in conjunction with the opening and closing operations of the gate. A screen that is set in or evacuated from a waterway, a dust remover that removes foreign matter adhering to the screen from the screen, and a foreign matter discharge plate that discharges the foreign matter removed by the dust remover downstream of the pump. Gate pump equipment. 8. A gate that is movable up and down to open and close a waterway, a pump that is attached to this gate and discharges water from one side of the gate to the other side of the gate, and a pump that is attached integrally to the gate and said pump. a screen installed on the upstream side of the gate; a dust remover that removes foreign matter that adheres to the screen when the screen is set in the waterway; and a dust remover that is attached to the gate and removed by the dust remover. and a foreign matter discharge plate for discharging foreign matter to the downstream side of the pump. 9. In claim 8, the dust remover is installed on a scaffold above the waterway, and when the screen is set in the waterway, moves up and down the screen surface to scrape off foreign matter adhering to the screen surface; Gate pump equipment configured to discharge foreign matter onto a discharge plate. 10. A waterway opening/closing means for opening and closing a waterway; a pump for discharging water from one side of the waterway opening/closing means to the other side when the waterway opening/closing means is set in the waterway; a foreign matter removing means that is set in or evacuated from the waterway in conjunction with the opening/closing operation of the waterway opening/closing means; a foreign matter scraping means for scraping off foreign matter adhering to the foreign matter removing means; Gate pump equipment comprising a foreign matter discharge means for discharging foreign matter to the downstream side of the pump. 11. The gate pump according to claim 10, wherein the pump is fixedly installed in a waterway, and the waterway opening/closing means is a gate that opens and closes the waterway formed on both sides of the pump by moving up and down. Facility. 12. In claim 10, the waterway opening/closing means for opening and closing the waterway is a gate, a gate drive unit is provided to move the gate up and down, and a discharge casing for inserting and installing a pump is installed in the gate. A gate pump equipment comprising: a pump that is inserted into and taken out from the discharge casing; and a vertical drive unit for vertically moving the pump separately from the vertical movement of the gate. 13. Set a gate with a pump in a waterway, set a screen upstream of the gate in the waterway in conjunction with the movement of the gate, and then drive the pump to discharge water upstream of the gate to the downstream side of the gate; A method for operating gate pump equipment, comprising scraping off foreign matter adhering to the screen during movement of the pump and discharging it downstream of the gate. 14. The method of operating a gate pump equipment according to claim 13, characterized in that after the gate is set in the waterway, the pump is set at a predetermined location on the gate. 15. A gate pump equipment that integrates a gate, a pump, and a screen tilted so that the lower end is on the upstream side is installed on the scaffolding on the waterway so that it can move up and down, while the scraping part can move up and down parallel to the front surface of the screen. After installing the dust remover on the scaffold and setting the gate pump equipment in the waterway, the scraping part of the dust remover is expanded and contracted to scrape off foreign matter adhering to the front of the screen, and the scraped foreign matter is removed from the gate. A method for operating a gate pump equipment, comprising discharging water to the downstream side, and then moving the scraping part upward and fixing it upward, and then moving the gate pump equipment upward to retreat above the waterway.