Dredging system for forebay of pump room

Abstract

The utility model discloses a desilting system for a pump room forebay, which comprises a control system, a truss vehicle and desilting equipment, the desilting equipment comprises a sludge suction system and a grab bucket, the sludge suction system comprises a slurry pump and auxiliary sludge suction equipment, and the auxiliary sludge suction equipment comprises a stirrer and a high-pressure water gun. The high-pressure water gun is provided with a high-pressure pump and a nozzle connected with the high-pressure pump, the joist barrow is arranged above the pump room forebay, the slurry pump and the grab bucket are respectively hung on the joist barrow, a fixed bracket is arranged on the slurry pump, the stirrer and the high-pressure pump are respectively connected with the fixed bracket by adopting a detachable connecting structure, and an outlet of the slurry pump is connected with the sludge discharge pipe. The forebay cleaning device can realize comprehensive cleaning of the forebay. The dredging efficiency can be greatly improved, automatic cleaning and efficient discharging of deposits in the forebay are achieved, the automation degree is high, operation is easy and convenient, potential safety hazards of personnel operation are greatly reduced, and the operation efficiency and safety of the pump station are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hydraulic engineering, especially relate to a dredging system for pump house forebay. BACKGROUND

[0002] The pump house forebay is an important part of the pump station, which functions to collect, store and regulate water flow, and ensure the normal operation of the pump house. The normal operation of the pump house forebay is crucial to the overall performance of the pump station. However, after a long time of operation, the impurities, silt and other sediments carried by the water flow gradually accumulate in the forebay, forming silt, which not only affects the water intake efficiency of the pump house, but also may cause damage to the pump house equipment, seriously affecting the operation of the pump station. The traditional dredging method mainly uses manual or simple mechanical equipment, which has the problems of low dredging efficiency, high labor intensity, safety hazards and the like. SUMMARY

[0003] The utility model discloses a dredging system for pump house forebay, which has the advantages of high dredging efficiency, simple operation, safety and reliability and the like.

[0004] The utility model discloses a dredging system for pump house forebay, which has the advantages of high dredging efficiency, simple operation, safety and reliability and the like.

[0005] The mixer is equipped with three in total, and is arranged uniformly in the circumferential direction.

[0006] The nozzle is fixed to the bottom of the slurry pump.

[0007] The derrick carriage is provided with a load limiting device.

[0008] The utility model has the advantages and positive effects that: the structure of the combination of the derrick carriage and the dredging equipment is adopted, the dredging operation is carried out by the derrick carriage under the hanging dredging equipment, the dredging equipment can cover the plane range of the forebay by moving through the derrick carriage, and the comprehensive cleaning of the forebay is realized. At the same time, the dredging efficiency can be greatly improved by controlling the dredging equipment through the control system, the automatic cleaning and efficient discharge of the silt in the forebay are realized, the degree of automation is high, the operation is simple, the safety hazards of personnel operation are greatly reduced, and the operation efficiency and safety of the pump station are improved. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 The utility model discloses a structural schematic diagram.

[0010] In the drawing: 1, truss car; 2, slurry pump; 3, sludge pipe; 4, grab bucket. DETAILED DESCRIPTION

[0011] In order to further understand the invention content, characteristics and efficacy of the utility model, the following examples are cited, and the detailed description is as follows in conjunction with the drawings:

[0012] Please refer to Figure 1 A kind of dredging system for pump house forebay, including control system, truss car 1 and dredging equipment, the dredging equipment includes suction system and grab bucket 4, the suction system is composed of slurry pump 2 and auxiliary suction equipment, the auxiliary suction equipment includes agitator and high-pressure water gun, the high-pressure water gun is equipped with high-pressure pump and nozzle connected with the high-pressure pump, the truss car 1 is set above pump house forebay, the slurry pump 2 and the grab bucket 4 are hung on the truss car 1 respectively, fixed support is provided on the slurry pump 2, the agitator and the high-pressure pump are connected with the fixed support respectively using detachable connection structure, the outlet of the slurry pump 2 is connected with sludge pipe 3.

[0013] More preferred scheme of the embodiment is as follows:

[0014] The agitator is equipped with three in total, is arranged evenly along the circumference, and facilitates counterweight balance.

[0015] The nozzle is fixed at the bottom of the slurry pump 2, facilitating system stability.

[0016] The truss car 1 is provided with a load limiting device, can realize layered dredging by setting load limiting, and avoids the dredging equipment from sinking into sludge when sucking sludge.

[0017] More detailed description is as follows:

[0018] The dredging equipment can cover the plane range of forebay by moving through the truss car, and can move up and down along the depth direction of pump house by adjusting the lifting height of the truss car.

[0019] The dredging equipment is divided into suction system and grab bucket. The suction system is used for sludge and conventional hardened sludge dredging. For hard and hardened sludge that is difficult to remove by the suction system, or other sundries that are not suitable for suction by the suction system, the grab bucket is used for auxiliary excavation.

[0020] The suction system is composed of slurry pump and auxiliary suction equipment. For surface floating sludge, the slurry pump can be directly used for suction to dredge. For deep deposited sludge, the sludge is first stirred and dispersed by the auxiliary suction equipment, and then sucked by the slurry pump, to achieve the effect of dredging.

[0021] Slurry pump is used to suck silt, and the silt is transported to the collecting pool through the sludge discharge pipe connected with the slurry pump. The recommended value of the caliber of the slurry pump is 200 mm, and the lift is determined according to the actual discharge distance.

[0022] The stirrer and the high-pressure water gun can be used in cooperation. For the hardened silt, the silt can be stirred by the stirrer or washed by the high-pressure water jet of the high-pressure water gun, and then extracted by the slurry pump. In order to prevent the stirrer from colliding with the pool wall and the pool bottom, the stirrer is operated outside the range of 1 m from the pool wall and the pool bottom, wherein 1 m is illustrative but not restrictive, and the specific interval can be determined according to the actual operation on site. The high-pressure water gun is used for auxiliary dredging within the range of 1 m. The stirrer or the high-pressure water gun is connected with the fixed support through bolts, and the stirrer and the high-pressure pump can be detached from the fixed support for replacement. The high-pressure water gun can directly extract the water in the front pool during operation, and does not need to additionally set a water delivery pipe.

[0023] The above-mentioned grab bucket is hung and installed, and the recommended value of the bucket capacity is 1 m 3 For the hardened silt that is difficult to remove by the silt suction system or other sundries that are not suitable for extraction by the silt suction system, the grab bucket is used for auxiliary excavation.

[0024] The control system controls the operation of the gantry car and the dredging equipment.

[0025] Although the preferred embodiments of the utility model are described above in combination with the drawings, the utility model is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative but not restrictive. Those skilled in the art can make many forms under the inspiration of the utility model without departing from the purpose of the utility model and the scope protected by the claims, and these all belong to the protection scope of the utility model.

Claims

1. A dredging system for a forebay of a pump house, characterized in that, The utility model relates to a dredging device and a control system thereof, which comprises a dredging device and a control system, wherein the dredging device comprises a suction system and a grab bucket, the suction system is composed of a slurry pump and an auxiliary suction device, the auxiliary suction device comprises an agitator and a high-pressure water gun, the high-pressure water gun is provided with a high-pressure pump and a nozzle connected with the high-pressure pump, the gantry crane is arranged above a front pool of a pump house, the slurry pump and the grab bucket are respectively hung on the gantry crane, a fixed support is arranged on the slurry pump, the agitator and the high-pressure pump are respectively connected with the fixed support through a detachable connection structure, and the outlet of the slurry pump is connected with a sludge discharge pipe.

2. The dredging system for a forebay of a pump house of claim 1, wherein, The agitator is arranged in three in total and is uniformly arranged in the circumferential direction.

3. The dredging system for a forebay of a pump house of claim 1, wherein, The nozzle is fixed to the bottom of the slurry pump.

4. The dredging system for a forebay of a pump house of claim 1, wherein, The gantry crane is provided with a load limiting device.

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