CN201512821U

CN201512821U - Jet sand suction device

Info

Publication number: CN201512821U
Application number: CN2009201199394U
Authority: CN
Inventors: 周南阳
Original assignee: ZHEJIANG FANGYUAN SHIP INDUSTRY CO LTD
Current assignee: ZHEJIANG FANGYUAN SHIP INDUSTRY CO LTD
Priority date: 2009-05-18
Filing date: 2009-05-18
Publication date: 2010-06-23
Anticipated expiration: 2019-05-18

Abstract

The utility model relates to a jet sand suction device, which belongs to the technical field of engineering ships, and comprises a U-shaped tube, wherein a work branch tube at one side of the U-shaped tube is connected with a water pump, and a work return tube at the other side is connected with a storage hopper; a high-speed spray head with a variable-diameter flared structure and an obliquely arranged sand suction tube are arranged at the U-shaped bottom of the work return tube in a matching way, and the tube diameter of the middle part of the work return tube at the front of the high-speed spray head is smaller than that of the left side and the right side, so that a mixing chamber and a diffusion region are respectively formed; and a group of connecting supports are arranged between the work branch tube and the work return tube of the U-shaped tube in a matching way. The utility model adopts the jet U-shaped tube sand suction device, and has simple equipment configuration, low cost and easy operation, and a mixture of sand and mud does not pass through the water pump, so the wear does not occur, the service life is long, the maintenance cost is low, and the economic benefit is good.

Description

A kind of jet is inhaled the sand device

Technical field

The utility model belongs to the engineering ship technical field, and a kind of jet that is specifically related in the suction-type dredge is inhaled the sand device.

Background technology

Before, in China on both sides of the Changjiang River, grab type dredge boat, chain type dredge boat and drag suction dredger etc. are the main forces of sand-taking machine tool always, have brought into play enormous function in yellow ground exploitation and dredging hydraulic reclamation engineering field.

Traditional suction-type dredge based on the pump suction, inhale sand mouth, the pump housing, sand export, setting on an axis, pass through the pump housing together from the sand aqueous mixtures of inhaling the suction of sand mouth, main member pump leaf in the pump is produced huge wearing and tearing, often need more water-change pump, the workload of its installation, maintenance is big, investment cost is many, and economic benefit is low.

The utility model content

At the above-mentioned problems in the prior art, the objective of the invention is to design the technical scheme that provides a kind of jet to inhale the sand device.

Described a kind of jet is inhaled the sand device, it is characterized in that having a U-shaped pipe, and the work arm of U-shaped pipe one side links to each other with water pump, and opposite side work return pipe links to each other with feed bin, and the nearly U-shaped bottom of work return pipe is equipped with high velocity jet head and sand suction pipe.

Described a kind of jet is inhaled the sand device, and the work return pipe mid portion caliber that it is characterized in that a described high velocity jet forward position constitutes mixing chamber and the diffusion region that cooperatively interacts respectively less than the right and left caliber.

Described a kind of jet is inhaled the sand device, and the work arm that it is characterized in that the U-shaped pipe is equipped with one group between the return pipe and is connected support with working.

Described a kind of jet is inhaled the sand device, it is characterized in that described high velocity jet head is the flared structure of a reducing, and the high velocity jet head is welded to connect with the nearly U-shaped bottom interior wall of work return pipe.

Described a kind of jet is inhaled the sand device, it is characterized in that the size of described high velocity jet head outlet can be regulated.

Described a kind of jet is inhaled the sand device, it is characterized in that sand suction pipe becomes to tilt to be connected with the work return pipe, and the outlet of high velocity jet head is positioned at sand suction pipe connector front end, and the angle of sand suction pipe and work return pipe is between 20-40 °.

Described a kind of jet is inhaled the sand device, and the angle that it is characterized in that sand suction pipe and work return pipe is between 30-35 °.

Above-mentioned a kind of jet is inhaled the sand device, one U-shaped pipe is arranged, the water pump that links to each other with the work arm of U-shaped pipe one side sucks clear water, the pressurization after the work arm of U-shaped pipe one side to underwater high-speed injector head place, because injector head is big or small reducing, the current at injector head place can be ejected into the mixing chamber of back with more speed, and between mixing chamber and high velocity jet head, locate to form negative pressuren zone, utilization is arranged on the sand aqueous mixtures suction of the sand suction pipe of this negative pressuren zone with the seabed, water under high pressure with enter the diffusion region after the sand aqueous mixtures fully mixes in mixing chamber, and gradually after the step-down work return pipe by U-shaped pipe one side be transported on the supporting sand carrier part pipe fitting that contacts with the sand aqueous mixtures.

The utlity model has following beneficial effect:

1, equipment configuration is simple, and cost is low, with the similar barge with deck of ship type of this matched with devices, does not have large-scale special-purpose deck machinery equipment.

2, operating procedure is simple, when inhaling the sand operation only one man operation get final product.

3, water pump is because what suck is clear water, and the silt particle mixture is without water pump, thus the pump leaf do not wear and tear, long service life, maintenance of equipment is simple, the consumable accessory replacement cost is low.

4, regulate its depth of implements by the upending frame of bow, this device is inhaled can reach 65 meters deeply; Rely on deadweight and its particular structure of sand suction pipe, can effectively solve the infratectal sand of getting of thick mud.

5, production efficiency height is inhaled only 3 yuan of sand costs/per ton.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a side-looking structural representation of the present utility model.

Among the figure: 1-U shape plumber does that arm, 2-U shape pipe, 3-high velocity jet head, 4-sand suction pipe, 5-mixing chamber, 6-diffusion region, 7-U shape plumber are made return pipe, 8-connects support.

The specific embodiment

The utility model will be further described to reach embodiment in conjunction with the accompanying drawings:

A kind of jet is inhaled the sand device, has a U-shaped pipe 2, the work arm 1 of U-shaped pipe one side links to each other with water pump, opposite side work return pipe 7 links to each other with feed bin, some directly links to each other with row's bank equipment, the U-shaped bottom of work return pipe 7 is equipped with the flared structure high velocity jet 3 of reducing and the sand suction pipe 4 that is obliquely installed, high velocity jet 3 can be changed according to sand grains size or actual needs, the angle of sand suction pipe and work return pipe is between 20-40 °, between preferred 30-35 °, the work return pipe 7 mid portion calibers of high velocity jet 3 forward position are less than the right and left caliber, constitute mixing chamber and diffusion region respectively, the part pipe fitting easy to wear that contacts with sand water can be changed, and the work arm of U-shaped pipe is equipped with one group with work between the return pipe and is connected support, connect support and can use other structures, also can.

The course of work of the present utility model is as follows: a kind of jet is inhaled the sand device, the water pump that links to each other with the work arm 1 of U-shaped pipe one side sucks clear water, pressurization is after the work arm 1 of U-shaped pipe one side arrives underwater high-speed injector head 3 places, because injector head is big or small reducing, the current at injector head place can be ejected into mixing chamber 5 with more speed, and between mixing chamber 5 and high velocity jet 3, locate to form negative pressuren zone, utilization is arranged on the sand aqueous mixtures suction of the sand suction pipe 4 of this negative pressuren zone with the seabed, water under high pressure with enter diffusion region 6 after the sand aqueous mixtures fully mixes in mixing chamber, and gradually after the step-down work return pipe 7 by U-shaped pipe one side be transported on the supporting sand carrier.

Claims

1. a jet is inhaled the sand device, it is characterized in that having a U-shaped pipe (2), the work arm (1) of U-shaped pipe (2) one sides links to each other with water pump, and opposite side work return pipe (7) links to each other with feed bin, and the nearly U-shaped bottom of work return pipe (7) is equipped with high velocity jet head (3) and sand suction pipe (4).

2. a kind of jet as claimed in claim 1 is inhaled the sand device, and work return pipe (7) caliber that it is characterized in that described high velocity jet head (3) forward position constitutes mixing chamber (5) and diffusion region (6) that cooperatively interact respectively less than the right and left caliber.

3. a kind of jet as claimed in claim 1 is inhaled the sand device, and the work arm (1) that it is characterized in that U-shaped pipe (2) is equipped with one group between the return pipe (7) and is connected support (8) with working.

4. a kind of jet as claimed in claim 1 is inhaled the sand device, it is characterized in that described high velocity jet head (3) is the flared structure of a reducing, and high velocity jet head (3) is welded to connect with the nearly U-shaped bottom interior wall of work return pipe (7).

5. a kind of jet as claimed in claim 1 is inhaled the sand device, it is characterized in that sand suction pipe (4) becomes to tilt to be connected with work return pipe (7), the outlet of high velocity jet head (3) is positioned at sand suction pipe (4) connector front end, and the angle of sand suction pipe (4) and work return pipe (7) is between 20-40 °.

6. a kind of jet as claimed in claim 5 is inhaled the sand device, and the angle that it is characterized in that sand suction pipe (4) and work return pipe (7) is between 30-35 °.