CN210288536U

CN210288536U - Be applied to towards silt device among hydraulic engineering

Info

Publication number: CN210288536U
Application number: CN201920907132.0U
Authority: CN
Inventors: 赵微人; 张金斌; 宋国华; 周治郅; 蒲楠楠
Original assignee: China Water Resources Pearl River Planning Surverying & Designing Co ltd
Current assignee: China Water Resources Pearl River Planning Surverying & Designing Co ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-04-10
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a be applied to towards silt device among hydraulic engineering belongs to the hydraulic equipment field. The device comprises a submersible pump, wherein the submersible pump is connected with one end of a water conveying pipeline, the water conveying pipeline is sequentially connected with a first check valve, a first control gate valve, a booster pump, a second check valve and a second control gate valve, and the other end of the water conveying pipeline is respectively connected with a gate bottom silt flushing pipe and at least 1 gate front silt flushing pipe; the gate bottom silt flushing pipe is divided into a horizontal section and two vertical sections which are mutually communicated, the horizontal section is embedded in a gate bottom sill, the two vertical sections are respectively embedded in gate piers at two sides of a gate, and a plurality of direct-injection water guns are arranged on the horizontal section and the two vertical sections along the way and are used for impacting the silt at the bottom and the periphery of the gate; the gate forward-flushing silt pipe is embedded in a gate bottom plate at the upstream of the gate, a plurality of L-shaped water guns are arranged along the way, nozzles of the L-shaped water guns extend out of the surface of the gate bottom plate, and the water spraying direction is parallel to the gate bottom plate. The utility model discloses can carry out active towards the silt to the gate position effectively, and can be long-term stable, the low-cost operation.

Description

Be applied to towards silt device among hydraulic engineering

Technical Field

The utility model belongs to the hydraulic equipment field, concretely relates to be applied to towards silt device among hydraulic engineering.

Background

The hydraulic engineering built in the river channel or river mouth with high sediment content, especially the sluice or dam, etc. can cause the phenomena that the gate can not be normally opened and the engineering function is affected because the sluice or dam is under water for a long time, the impurities and the sediment accumulate in the day and the month, and the impurities and the sediment accumulate gradually under water. The traditional manual dredging method can only be carried out in a dry period and a non-operation period, and the dredging mode has the advantages of higher cost, lower efficiency and higher randomness and can not permanently and effectively solve the problem of sediment accumulation.

Also provided among the prior art is the equipment that the part can be washed the silt automatically, utility model patent that application number is CN201520219402.0 for example discloses an automatic desilting system of blowing for the bottom of reservoir is dredged, and the left part of this reservoir has the dam, automatic desilting system includes: the device comprises a sand discharge tunnel, at least 2 lantern rings, a connecting pipe, a buoy, a water closing gate, a advection pressing plate, a shield and the like. The equipment can automatically release sand and desilt by utilizing flood, but can not realize active desilting without the flood. In addition, the utility model with the application number of CN201621381424.8 discloses a novel dredging device for the bottom of a water retaining gate, which comprises a high-pressure air pump, a gate, a stainless steel pressure pipeline and a stainless steel pipe with a drill hole; high-pressure gas generated by the high-pressure gas pump is poured into the stainless steel pipe with the drilled holes at the bottom of the gate through the stainless steel pressure pipeline, and the sludge and river sand at the bottom of the gate are flushed away under the action of the high-pressure gas. The equipment relies on high-pressure gas for dredging, but the running cost of the high-pressure gas generating equipment is higher. Therefore, the automatic sludging system for the hydraulic engineering, which can operate stably for a long time and at low cost, is urgently needed to be provided.

Based on the above reason, the utility model mainly provides a hydraulic engineering dashes silt device effectively solves above-mentioned technical problem.

Disclosure of Invention

An object of the utility model is to solve the problem that exists among the prior art to a towards silt device for among the hydraulic engineering is provided.

The utility model discloses the concrete technical scheme who adopts as follows:

a sludging device applied to hydraulic engineering is arranged at a sluice position and comprises a submersible pump, wherein the submersible pump is connected with one end of a water conveying pipeline, the water conveying pipeline is sequentially connected with a first check valve, a first control gate valve, a booster pump, a second check valve and a second control gate valve, and the other end of the water conveying pipeline is respectively connected with a sluice bottom sludging pipe and at least 1 sluice front sludging pipe; the gate bottom silt flushing pipe is divided into a horizontal section and two vertical sections which are mutually communicated, the horizontal section is embedded in a gate bottom sill, the two vertical sections are respectively embedded in gate piers at two sides of a gate, and a plurality of direct-injection water guns are arranged on the horizontal section and the two vertical sections along the way; the water spraying direction of the direct-spraying water gun on the horizontal section is vertical and upward and is used for impacting the sludge at the bottom of the gate; the water spraying direction of the direct-spraying water gun on the vertical section is from two sides of the gate to the middle of the gate; all the straight water spraying guns are retracted into the water gun mounting holes of the gate sill or the gate pier; the gate dashes before the silt pipe and buries underground in the gate bottom plate of gate upstream, and the gate dashes before the silt pipe arrange the direction parallel with the length direction of gate sill, the gate dashes before the silt pipe is equipped with a plurality of L type squirt on the way, the nozzle of L type squirt stretches out from the gate bottom plate surface, the water spray direction is parallel with the gate bottom plate.

Preferably, there are two gate forward silt flushing pipes, which are the first gate forward silt flushing pipe and the second gate forward silt flushing pipe, and the distances between the first gate forward silt flushing pipe and the gate and the distances between the second gate forward silt flushing pipe and the gate are different.

Preferably, the direct-injection water gun and the L-shaped water gun are both composed of a high-pressure water pipe and a nozzle.

Further, the nozzle is of a duckbill valve type.

Preferably, the direct-injection water guns or the L-shaped water guns are arranged in sequence along the length direction of the water gate.

Preferably, the nozzle of the L-shaped water gun is higher than the surface of the brake bottom plate.

Preferably, the height of the direct-injection water gun positioned at the top of the vertical section of the gate bottom silt flushing pipe is higher than that of the gate top water seal.

Preferably, the pipe diameter of the water pipeline is not less than the pipe diameters of the gate bottom silt flushing pipe and the gate front silt flushing pipe.

Preferably, the sluice bottom silt flushing pipe and the sluice front silt flushing pipe are communicated with a water pipeline in a parallel mode.

Preferably, the submersible pump is arranged in the water inlet pool, and the water conveying pipeline, the first check valve, the first control gate valve, the booster pump, the second check valve and the second control gate valve are laid on the ground of the gate building.

Compared with the prior art, the utility model, following beneficial effect has: the silt flushing device utilizes the jet flow silt flushing principle in silt dynamics, high-pressure water flow with the speed higher than the starting speed of silt drives deposited silt to enter a motion state, the high-pressure water flow is jetted out through a nozzle and acts on a gate sill and a gate bottom plate to enable the deposited silt to be lifted and suspended, then the deposited silt is flushed away by water flow, and then the deposited silt is conveyed into an outer river by water bodies discharged by a gate, so that the effect of dredging before the gate is achieved. Moreover, a plurality of silt flushing pipelines are pre-embedded in the gate bottom plate at the upstream of the gate in the device, so that silt in front of the gate can not be deposited when the gate is not opened.

Drawings

Fig. 1 is a schematic overall arrangement diagram of a sludging device applied to hydraulic engineering in the embodiment.

FIG. 2 is a layout diagram of the gate piers and the pre-buried pipelines in the gate sill in the embodiment.

Fig. 3 is a schematic diagram of a direct-injection water gun embedded in a gate sill in the embodiment.

FIG. 4 is a layout view of the pre-buried pipeline in the gate bottom plate before the gate in the embodiment.

Fig. 5 is a schematic view of an L-shaped water gun embedded in a gate bottom plate in the embodiment.

The reference numbers in the figures are: immersible pump 1, conduit 2, first check valve 3, first control gate valve 4, booster pump 5, second check valve 6, second control gate valve 7, first floodgate head towards silt pipe 8, second floodgate head towards silt pipe 9, sluice bottom towards silt pipe 10, L type squirt gun 11, directly spout squirt gun 12, gate pier 13, gate sill 14, sluice bottom plate 15.

Detailed Description

The invention will be further elucidated and described with reference to the drawings and embodiments. The utility model discloses in the technical characteristics of each embodiment under the prerequisite that does not conflict each other, all can carry out corresponding combination.

As shown in fig. 1, in a preferred embodiment of the present invention, a silt flushing device for hydraulic engineering is provided, which is mainly installed at the sluice position for preventing the sluice position from depositing silt. The basic structure of the sludging device comprises a submersible pump 1, a water pipeline 2, a first check valve 3, a first control gate valve 4, a booster pump 5, a second check valve 6, a second control gate valve 7, a first gate forward sludging pipe 8, a second gate forward sludging pipe 9, a gate bottom sludging pipe 10, an L-shaped water gun 11 and a direct-injection water gun 12. The implementation mode of the sludging device is specifically described below.

The submersible pump 1 is used for pumping water and offsetting the on-way hydraulic loss of the water conveying pipeline 2, the submersible sewage pump can be arranged at the bottom of the water inlet pool close to the side wall of the pool, the submersible pump 1 is connected with one end of the water conveying pipeline 2, and the submersible pump extracts water from the water inlet pool and then conveys the water along the water conveying pipeline 2. The water pipe 2 is connected with a first check valve 3, a first control gate valve 4, a booster pump 5, a second check valve 6 and a second control gate valve 7 in sequence. The booster pump is used for providing extra water pressure and further offsetting hydraulic loss of the water pipeline, the two check valves are used for preventing water from flowing backwards, and the two control gate valves are used for controlling the on-off of the water pipeline 2. Wherein, first check valve 3, first control gate valve 4 and immersible pump 1 cooperation are used. The second check valve 6 and the second control gate valve 7 are matched with the booster pump 5 for use. The submersible pump 1 is arranged in the water inlet pool, and the water conveying pipeline 2, the first check valve 3, the first control gate valve 4, the booster pump 5, the second check valve 6 and the second control gate valve 7 are laid on the green belt ground surface layer of the gate building. Wherein, each valve and booster pump 5 can be settled in the ground pump valve well, easy to assemble and overhaul. The submersible pump 1 is used for type selection according to water demand and the head loss of a pipeline along the line, the booster pump is used for type selection according to the water demand, the head loss of the pipeline along the line and water gun pressure, and the two check valves and the two control gate valves are used for type selection according to water delivery pressure and water delivery pipe diameter. The submersible pump and the booster pump can be combined into one pump or used by connecting a plurality of pumps in series according to the engineering requirement, and the check valve and the control gate valve are matched according to the number of the water pumps.

In this embodiment, the other end of the water pipe 2 is connected to the sluice bottom silt flushing pipe 10, the first sluice front silt flushing pipe 8 and the second sluice front silt flushing pipe 9 respectively, and the sluice bottom silt flushing pipe 10, the first sluice front silt flushing pipe 8 and the second sluice front silt flushing pipe 9 are connected to the water pipe 2 in parallel, and are supplied with water by the water pipe 2 in a unified manner.

As shown in fig. 2 and 3, the sluice bottom silt flushing pipe 10 is divided into a horizontal section and two vertical sections, and the two vertical sections are respectively communicated with two sides of the horizontal section. The horizontal section is pre-embedded in the gate sill 14, and the two vertical sections are pre-embedded in the gate piers 13 at both sides of the gate respectively. The horizontal segment is laid along the bottom surface length of gate, buries the degree of depth in the gate sill 14 underground and adjusts according to the engineering needs, and moves towards the interval along the horizontal segment on the gate sill 14 and begin to have a plurality of circular mounting hole, installs one in every circular mounting hole and directly spouts squirt 12, directly spouts squirt 12 and comprises high pressure water pipe and nozzle, and high pressure water pipe can adopt nonrust steel pipe, and the horizontal segment of sludging pipe 10 is washed at the bottom of the one end intercommunication gate, and the nozzle is connected to the other end. The nozzle can adopt a sleeved duckbill valve, the nozzle can be prevented from flowing backwards by water flow and blocking by silt, and the nozzle is convenient to install, small in water loss and low in operation cost. The water spray direction of the direct spray water gun 12 on the horizontal section is vertical upward, and the high-pressure water conservancy sprayed from the spray nozzle can directly impact the gate bottom sludge. In addition, a plurality of identical direct-injection water guns 12 are arranged on the two vertical sections along the way. In this example, the number of the direct injection water guns 12 per vertical section is 3, two of which are close to the gate sill 14 and the other is higher than the gate top water seal. The water spraying direction of the direct-injection water gun 12 on the vertical section is from two sides of the gate to the middle of the gate. The two direct-injection water guns 12 close to the gate sill 14 are used for forming high-speed water flow which is flushed from the two sides of the gate to the middle, so that the disturbance effect of the gate bottom silt is enhanced, and the disturbance rate of the silt is increased. The top direct-injection water gun 12 is used for infiltrating a gate water seal so as to prevent the water seal from being damaged by high-pressure water flow impact. Because the gate needs to be opened and closed up and down, all the straight water spraying guns 12 need to be retracted into the water gun mounting holes of the gate sill 14 or the gate pier 13 and cannot extend out of the surface in order to avoid influencing the up-and-down movement of the gate.

The first gate forward silt flushing pipe 8 and the second gate forward silt flushing pipe 9 are uniformly arranged in a silt deposition area at the upstream of the gate, and the distances between the first gate forward silt flushing pipe and the gate are different. The specific arrangement position and the distance between the two pipelines can be adjusted according to actual needs, so that the silt flushing range of the pipelines can cover the silt deposition range before the gate as far as possible. The arrangement structure of the first gate forward silt pipe 8 and the second gate forward silt pipe 9 is the same, and the first gate forward silt pipe 8 is taken as an example for explanation. As shown in fig. 4 and 5, the first gate front silt flushing pipe 8 is embedded in the gate bottom plate 15 at the upstream of the gate, the arrangement direction of the first gate front silt flushing pipe 8 is parallel to the length direction of the gate bottom sill 14, the first gate front silt flushing pipe 8 is provided with a plurality of L-shaped water guns 11 along the way, each L-shaped water gun 11 also comprises a high-pressure water pipe and a nozzle, and the nozzle can adopt a sleeved duckbill valve. The high-pressure water pipe can also adopt a stainless steel pipe, one end of the high-pressure water pipe is communicated with the first gate front silt flushing pipe 8, and the other end of the high-pressure water pipe is connected with the nozzle. The nozzle of the L-shaped water gun 11 extends out from the surface of the gate bottom plate 15, and the water spraying direction is parallel to the gate bottom plate 15. The nozzle of the L-shaped water gun 11 can be higher than the surface of the gate bottom plate 15. The L-shaped water guns 11 are arranged in a staggered mode according to jet flow width and used for impacting sludge in front of a gate and reducing deposition of the sludge at the position. The water flow jetting directions of the L-shaped water guns 11 can be uniformly towards the gate, and can be staggered with each other certainly, as long as silt can be fully disturbed.

The utility model discloses in, the jet strength of each squirt needs to confirm according to silt particle diameter before the floodgate and the functioning speed, and arranging of squirt is confirmed through the jet width. The reasonable nozzle position and size can achieve the best sediment disturbing effect. By further calculation and refinement, the following preferred parameter settings can be given: the flow velocity of water flow at the outlet of each water gun is higher than the silt starting velocity, the distance between two adjacent direct-injection water guns 12 or two adjacent L-shaped water guns 11 is determined according to the gate width and the jet flow range, and the two adjacent rows of L-shaped water guns 11 are arranged in a staggered mode; the nozzle of the L-shaped water gun 11 is higher than the surface of the gate bottom plate 15; the pipe diameters of the water delivery pipeline 2, the sluice bottom silt flushing pipe 10 and the sluice front silt flushing pipe are determined according to the water delivery quantity, and the water delivery quantity is selected according to the size of the sluice and the silt flushing range. Of course, when the actual engineering conditions are different, the parameters can be adjusted as required.

By adopting the technical scheme in the embodiment, the nozzle of the direct-injection water gun 12 is directly arranged in the gate bottom plate, directly impacts the gate sill deposited silt, and has the best silt flushing effect; in addition, 2 rows of L-shaped water guns 11 arranged in front of the gate can be used, and sludge in front of the gate can be rolled up and flushed away when the gate is not opened.

The use method of the device comprises the following steps: before the gate is opened, the silt flushing device is opened, the first control gate valve 4 and the second control gate valve 7 are opened at the moment, the submersible pump 1 and the booster pump 5 are started, high-pressure water with the speed higher than the starting speed of silt impacts the gate sill and deposits silt and sundries in front of the gate, and the gate is opened after the high-pressure water is fully lifted and suspended, so that the silt flows away along with the water body and is conveyed into the outer river, and the effect of dredging in front of the gate is achieved.

The above-mentioned embodiments are merely a preferred embodiment of the present invention, but it is not intended to limit the present invention. Various changes and modifications can be made by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present invention. Therefore, all the technical schemes obtained by adopting the mode of equivalent replacement or equivalent transformation fall within the protection scope of the utility model.

Claims

1. A sludging device applied to hydraulic engineering is installed at a sluice position and is characterized by comprising a submersible pump (1), wherein the submersible pump (1) is connected with one end of a water conveying pipeline (2), the water conveying pipeline (2) is sequentially connected with a first check valve (3), a first control gate valve (4), a booster pump (5), a second check valve (6) and a second control gate valve (7), and the other end of the water conveying pipeline is respectively connected with a sluice bottom sludging pipe (10) and at least 1 sluice front sludging pipe;

the gate bottom silt flushing pipe (10) is divided into a horizontal section and two vertical sections which are mutually communicated, the horizontal section is embedded in a gate bottom sill (14), the two vertical sections are respectively embedded in gate piers (13) at two sides of a gate, and a plurality of direct-injection water guns (12) are arranged on the horizontal section and the two vertical sections along the way; the water spraying direction of a direct-spraying water gun (12) on the horizontal section is vertical and upward and is used for impacting the sludge at the bottom of the gate; the water spraying direction of the direct-injection water gun (12) on the vertical section is from two sides of the gate to the middle of the gate; all the straight water spraying guns (12) are retracted into the water gun mounting holes of the gate sill (14) or the gate pier (13);

the sluice forerush silt pipe bury underground in sluice bottom board (15) on the gate upstream, and the arranging direction of sluice forerush silt pipe is parallel with the length direction of sluice sill (14), the sluice forerush silt pipe is equipped with a plurality of L type squirt (11) along the journey, the nozzle of L type squirt (11) stretches out from sluice bottom board (15) surface, the water spray direction is parallel with sluice bottom board (15).

2. The sludging device applied to hydraulic engineering according to claim 1, wherein there are two gate forward sludging pipes, namely a first gate forward sludging pipe (8) and a second gate forward sludging pipe (9), and the first gate forward sludging pipe (8) and the second gate forward sludging pipe (9) have different distances from the gate.

3. The sludging device applied to hydraulic engineering according to claim 1, wherein the direct injection lance (12) and the L-shaped lance (11) are both composed of a high pressure water pipe and a nozzle.

4. A sludging device for use in hydraulic engineering according to claim 3, wherein the nozzle is of the duckbill valve type.

5. The apparatus according to claim 1, wherein the direct-injection water guns (12) or the L-shaped water guns (11) are arranged in sequence along the length direction of the gate.

6. The sludging device applied to hydraulic engineering according to claim 1, wherein the nozzle of the L-shaped water gun (11) is higher than the surface of the gate bottom plate (15).

7. The sludging device applied to hydraulic engineering according to claim 1, wherein the height of the direct injection water gun (12) at the top of the vertical section of the sludging pipe (10) at the bottom of the gate is higher than that of the water seal at the top of the gate.

8. The sluicing device applied to water conservancy projects according to claim 1, wherein the pipe diameter of the water conveying pipeline (2) is not less than that of the sluicing pipe (10) at the bottom of the gate and the sluicing pipe at the front of the gate.

9. The sludging device applied to the hydraulic engineering according to claim 1, wherein the sluice bottom sludging pipe (10) and the sluice front sludging pipe are communicated with the water pipeline (2) in a parallel manner.

10. The sludging device applied to the hydraulic engineering according to claim 1, wherein the submersible pump (1) is placed in a water inlet pool, and the water conveying pipeline (2), the first check valve (3), the first control gate valve (4), the booster pump (5), the second check valve (6) and the second control gate valve (7) are laid on the ground of the gate building.