CN211340919U - Submarine pipeline back-trenching flushing jet pump - Google Patents
Submarine pipeline back-trenching flushing jet pump Download PDFInfo
- Publication number
- CN211340919U CN211340919U CN201921723480.9U CN201921723480U CN211340919U CN 211340919 U CN211340919 U CN 211340919U CN 201921723480 U CN201921723480 U CN 201921723480U CN 211340919 U CN211340919 U CN 211340919U
- Authority
- CN
- China
- Prior art keywords
- pipe
- water inlet
- connecting flange
- jet pump
- inlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Jet Pumps And Other Pumps (AREA)
Abstract
A subsea pipeline post-trenching flush jet pump comprising: the jet pump mechanism is connected with the connecting pipe through the connecting flange and the bolt assembly. Wherein, jet pump mechanism includes: a water outlet diffusion pipe, a contraction throat pipe and a water inlet pipe. Wherein, the inlet tube includes: water inlet, inlet pipe body, slot, transmission pipe and ditch notch. Compared with the prior art, the utility model, through increasing jet pump mechanism at the pipeline, strengthen the injection effect, increase dredging efficiency.
Description
Technical Field
The utility model relates to a river mediation field, concretely relates to submarine pipeline back ditching bath jet pump.
Background
When the conventional trenching boat is in operation, the anchoring displacement trenching is adopted, the speed is very slow (about 1m/min), and the stable sailing speed of the trailing suction boat is about 2kn, so that although the trenching efficiency is higher, whether the trenching effect at the sailing speed can meet the requirement must be verified. And because of the reason that the speed of a ship is fast, a mechanical auxiliary ground breaking device cannot be used, and the ditch can be dug only by completely depending on the hydraulic action.
In order to solve the above problems, we have made a series of improvements.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a submarine pipeline back ditching bath jet pump to overcome the above-mentioned shortcoming and not enough that prior art exists.
A subsea pipeline post-trenching flush jet pump comprising: the jet pump mechanism is connected with the connecting pipe through the connecting flange and the bolt assembly;
wherein the jet pump mechanism comprises: the water outlet device comprises a water outlet diffusion pipe, a contraction throat pipe and a water inlet pipe, wherein the lower end of the water outlet diffusion pipe is connected with the contraction throat pipe through a connecting flange and a bolt assembly, the lower end of the contraction throat pipe is connected with the water inlet pipe through a connecting flange and a bolt assembly, and one side of the water inlet pipe is connected with a connecting pipe through a connecting flange and a bolt assembly;
wherein, the inlet tube includes: the water inlet is connected with the water inlet pipe body and the connecting pipe, the groove is formed in the top end of the water inlet pipe body, the transmission pipe is arranged in the groove, and the groove opening is formed in the transmission pipe.
Further, the connection flange includes: the water inlet pipe comprises a first connecting flange, a second connecting flange, a third connecting flange and a fourth connecting flange, wherein the first connecting flange is connected with the middle of the water outlet diffusion pipe and the middle of the contraction throat pipe, the second connecting flange is connected with the middle of the contraction throat pipe and the middle of the water inlet pipe, the third connecting flange is connected with the middle of the water inlet pipe and the connecting pipe, and the fourth connecting flange is connected with the bottom of the water inlet pipe.
The utility model has the advantages that:
compared with the prior art, the utility model, through increasing jet pump mechanism at the pipeline, strengthen the injection effect, increase dredging efficiency.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a water inlet pipe.
Reference numerals:
a jet pump mechanism 100, a water outlet diffusion pipe 110 and a contraction throat pipe 120.
A connection flange 200, a first connection flange 210, a second connection flange 220, a third connection flange 230, and a fourth connection flange 240.
Detailed Description
The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
Example 1
Fig. 1 is a schematic structural diagram of the present invention. Fig. 2 is a schematic structural view of a water inlet pipe.
As shown in fig. 1, a submarine pipeline back-trenching flush jet pump includes: the jet pump comprises a jet pump mechanism 100, a connecting flange 200, a bolt assembly 300 and a connecting pipe 400, wherein the jet pump mechanism 100 is connected with the connecting pipe 400 through the connecting flange 200 and the bolt assembly 300;
wherein the jet pump mechanism 100 includes: the water outlet diffusion pipe 110, the contraction throat pipe 120 and the water inlet pipe 130, wherein the lower end of the water outlet diffusion pipe 110 is connected with the contraction throat pipe 120 through a connecting flange 200 and a bolt assembly 300, the lower end of the contraction throat pipe 120 is connected with the water inlet pipe 130 through the connecting flange 200 and the bolt assembly 300, and one side of the water inlet pipe 130 is connected with a connecting pipe 400 through the connecting flange 200 and the bolt assembly 300;
as shown in fig. 2, wherein the water inlet pipe 130 includes: the water inlet 131, the water inlet pipe 132, the groove 133, the transmission pipe 134 and the groove opening 135, wherein the water inlet 131 is connected with the water inlet pipe 132 and the connecting pipe 400, the groove 133 is arranged at the top end of the water inlet pipe 132, the transmission pipe 134 is arranged in the groove 133, and the groove opening 135 is arranged on the transmission pipe 134.
The connection flange 200 includes: the water inlet pipe comprises a first connecting flange 210, a second connecting flange 220, a third connecting flange 230 and a fourth connecting flange 240, wherein the first connecting flange 210 is connected with the middle of the water outlet diffusion pipe 110 and the contraction throat pipe 120, the second connecting flange 220 is connected with the middle of the contraction throat pipe 120 and the water inlet pipe 130, the third connecting flange 230 is connected with the middle of the water inlet pipe 130 and the connecting pipe 400, and the fourth connecting flange 240 is connected with the bottom of the water inlet pipe 130.
The working principle of the utility model is that when the working fluid is sprayed out from the nozzle at high speed, the vacuum is formed at the entrance of the contraction throat 120 because the surrounding air is swept away by the jet flow, and the conveyed fluid is sucked. The two flows are mixed in the contraction throat 120 and undergo momentum exchange, so that the kinetic energy of the conveyed fluid is increased, and finally, most of the kinetic energy is converted into pressure energy through the water outlet diffusion pipe 110. The water inlet pipe 130 sucks the sand flushed in the groove 133 and discharges the sand to the groove opening 135 side by side while driving the jet pump by high-pressure flushing water, so that the effect of cleaning the groove is achieved, and the cleaning efficiency of the jet pump is guaranteed.
The above description has been made of the embodiments of the present invention, but the present invention is not limited thereto, and various changes may be made without departing from the spirit of the present invention.
Claims (2)
1. The utility model provides a submarine pipeline back ditching bath jet pump which characterized in that includes: the jet pump comprises a jet pump mechanism (100), a connecting flange (200), a bolt assembly (300) and a connecting pipe (400), wherein the jet pump mechanism (100) is connected with the connecting pipe (400) through the connecting flange (200) and the bolt assembly (300);
wherein the jet pump mechanism (100) comprises: the water outlet diffusion pipe (110), the contraction throat pipe (120) and the water inlet pipe (130), wherein the lower end of the water outlet diffusion pipe (110) is connected with the contraction throat pipe (120) through a connecting flange (200) and a bolt assembly (300), the lower end of the contraction throat pipe (120) is connected with the water inlet pipe (130) through the connecting flange (200) and the bolt assembly (300), and one side of the water inlet pipe (130) is connected with the connecting pipe (400) through the connecting flange (200) and the bolt assembly (300);
wherein the water inlet pipe (130) comprises: the water inlet (131), the water inlet pipe body (132), the groove (133), the transmission pipe (134) and the groove opening (135), the water inlet (131) is connected with the water inlet pipe body (132) and the connecting pipe (400), the groove (133) is arranged at the top end of the water inlet pipe body (132), the transmission pipe (134) is arranged in the groove (133), and the groove opening (135) is arranged on the transmission pipe (134).
2. The subsea pipeline post-trenching flush jet pump of claim 1, wherein: the connecting flange (200) comprises: the water inlet pipe comprises a first connecting flange (210), a second connecting flange (220), a third connecting flange (230) and a fourth connecting flange (240), wherein the first connecting flange (210) is connected with the middle of the water outlet diffusion pipe (110) and the middle of the contraction throat pipe (120), the second connecting flange (220) is connected with the middle of the contraction throat pipe (120) and the middle of the water inlet pipe (130), the third connecting flange (230) is connected with the middle of the water inlet pipe (130) and the connecting pipe (400), and the fourth connecting flange (240) is connected with the bottom of the water inlet pipe (130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921723480.9U CN211340919U (en) | 2019-10-12 | 2019-10-12 | Submarine pipeline back-trenching flushing jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921723480.9U CN211340919U (en) | 2019-10-12 | 2019-10-12 | Submarine pipeline back-trenching flushing jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211340919U true CN211340919U (en) | 2020-08-25 |
Family
ID=72136132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921723480.9U Active CN211340919U (en) | 2019-10-12 | 2019-10-12 | Submarine pipeline back-trenching flushing jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211340919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997127A (en) * | 2020-08-30 | 2020-11-27 | 哈尔滨工程大学 | Suction backfill device for trencher |
-
2019
- 2019-10-12 CN CN201921723480.9U patent/CN211340919U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997127A (en) * | 2020-08-30 | 2020-11-27 | 哈尔滨工程大学 | Suction backfill device for trencher |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211340919U (en) | Submarine pipeline back-trenching flushing jet pump | |
| CN203569610U (en) | Efficient jet type sand suction device | |
| CN212452854U (en) | Underwater dredging system for hydropower station tail canal | |
| CN101372835A (en) | Hydraulic-mechanical integrated sand discharge apparatus | |
| CN2654699Y (en) | Pneumatic sludge flushing device | |
| CN110565713A (en) | Underwater dredging robot | |
| CN2628590Y (en) | Submersible jet-flow spouting dredger | |
| CN201155118Y (en) | Water power-machinery integral sand-discharging device | |
| CN209025125U (en) | A kind of digging system of trailing suction hopper dredger | |
| CN211547838U (en) | Pile foundation sounding pipe pull throughs | |
| CN210194729U (en) | Mud digging claw for trailing suction dredger | |
| CN206784466U (en) | A kind of fast stringed pump pipe-line system for dredger | |
| CN220468977U (en) | Sand pipeline is inhaled to hank | |
| CN108916129B (en) | A kind of efficient self-vibration air lift mud pump | |
| CN218118838U (en) | Non-excavation underwater pipeline construction equipment | |
| CN108385760B (en) | Transmission system of energy-saving and environment-friendly undisturbed soil suction dredger | |
| CN113047357A (en) | Mud suction pipe mechanism of air suction dredge for bridge construction | |
| CN219974846U (en) | Floating external power supply drainage pump set | |
| CN217267793U (en) | Built-in high-pressure sand flushing device of pump station | |
| CN219825563U (en) | Dirt sucking assembly and dirt sucking system | |
| CN212900265U (en) | Buoyancy connecting pipe for pumping mud on water | |
| CN218292165U (en) | Hydraulic engineering is with hydraulic pipeline that has mediation function | |
| CN217380782U (en) | Structure for preventing runner chamber from being damaged by scouring | |
| CN219261171U (en) | A dirt suction boat that is used for power station tailrace to dredge under water | |
| CN204401679U (en) | Novel hydraulic suction dredge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |