CN210278487U

CN210278487U - Dredge leading filtration system that boats and ships used and possess online backwash function

Info

Publication number: CN210278487U
Application number: CN201920424115.1U
Authority: CN
Inventors: 张铭; 周树村; 辛海; 肖忠烜; 李峥
Original assignee: Tianjin University of Technology
Current assignee: Tianjin University of Technology
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2020-04-10
Anticipated expiration: 2029-04-01

Abstract

The utility model discloses a dredge leading filtration system of marine utensils online backwash function of possessing, the pressure water pipe comprises a water inlet pipe, the bottom threaded connection of inlet tube has the three way connection valve, the three way connection valve is threaded connection has first connecting pipe and third connecting pipe respectively in the delivery port department of both sides, the bottom of first connecting pipe and third connecting pipe is equipped with first Y shape filter and second Y shape filter respectively, first Y shape filter and second Y shape filter are equipped with first valve and second valve respectively in the drain department, the bottom of first Y shape filter and second Y shape filter is equipped with same second connecting pipe. Compared with the prior art, the utility model discloses can switch two Y shape filters of use through the tee bend valve, open first Y shape filter, utilize first Y shape filter to continuously supply water, utilize the water after the filtration to realize washing the filter screen of second Y shape filter simultaneously, need not to shut down, guarantee the continuous water supply of system.

Description

Dredge leading filtration system that boats and ships used and possess online backwash function

Technical Field

The utility model relates to a water treatment technical field especially relates to a dredge leading filtration system of boats and ships apparatus equipped with online backwash function.

Background

Dredging ships (commonly called dredgers) are mainly used for cleaning sludge in ports, riverways, wharfs and other places and dredger filling of oceans in seas, and along with the rapid development of ocean economy, dredging engineering ships play more and more important roles in recent years. In order to ensure the requirements of construction operation and the domestic water of the crew, the dredging ships are provided with seawater desalination devices. Due to the violent stirring action of the reamer and the rake cutter on the sediment at the bottom of the sea when the dredging ship works, the water quality in the operating sea area is rapidly deteriorated and the sediment content is extremely high, so that the Y-shaped filter arranged in front of the water taking pump needs to be frequently stopped and cleaned, and the production operation is seriously influenced.

The Y-type filter is a common device for removing a small amount of solid particles in liquid, has the characteristics of simple structure and small resistance, and is usually arranged at the inlet ends of a pump and a valve to protect the normal operation of the pump and the valve. Silt and large solid particles in a circulating medium can be intercepted by a built-in filter screen of the Y-shaped filter in the use process of the Y-shaped filter, the Y-shaped filter needs to be manually disassembled and cleaned after being used for a period of time, the cleaning frequency is determined according to the water quality condition, and for muddy water with higher silt content, the resistance can obviously rise after running for more than ten minutes (even shorter), so that the Y-shaped filter is very unfavorable for continuous production.

In order to solve the cleaning problem of the Y-shaped filter and ensure the continuous work of the system, a motor and a brush are arranged in the filter tube, the brush is driven by the motor to clean the filter screen, but the filter still needs to be stopped for cleaning, and only the manual disassembly of the filter cylinder is avoided. And because the electric part is added, the size and the price of the equipment are greatly increased, and the device is not suitable for the narrow space of a cabin, so that a preposed filtering system with an online backwashing function for a dredging ship is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defect that the Y-shaped filter is inconvenient to clean in the prior art, and providing a front-mounted filtering system with an online backwashing function for a dredging ship.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a preposed filtering system with an online backwashing function for a dredging ship comprises a water inlet pipe, wherein the bottom end of the water inlet pipe is in threaded connection with a three-way valve, the water outlets on two sides of the three-way valve are respectively in threaded connection with a first connecting pipe and a third connecting pipe, the bottom ends of the first connecting pipe and the third connecting pipe are respectively provided with a first Y-shaped filter and a second Y-shaped filter, the sewage outlets of the first Y-shaped filter and the second Y-shaped filter are respectively provided with a first valve and a second valve, the bottom ends of the first Y-shaped filter and the second Y-shaped filter are respectively provided with the same second connecting pipe, the bottom end of the second connecting pipe is provided with a first through hole, the second connecting pipe is welded with a water outlet pipe at the first through hole, one side of the water outlet pipe is provided with a first differential pressure meter connecting pipe, one side of the water inlet, the other end of the first differential pressure meter connecting pipe and the other end of the second differential pressure meter connecting pipe are provided with the same differential pressure meter.

Furthermore, flanges are arranged at the joints of the first connecting pipe and the first Y-shaped filter, the first Y-shaped filter and the second connecting pipe, the second connecting pipe and the second Y-shaped filter, and the second Y-shaped filter and the third connecting pipe.

Furthermore, the inner walls of the first Y-shaped filter and the second Y-shaped filter at the sewage draining exit are both provided with filter screens, the filter screens are annular, and the inner walls of the filter screens are provided with support frames.

Furthermore, the one end of support frame is equipped with the fixed block, the fixed block is the annular, the fixed block is connected with the drain inner wall buckle of first Y shape filter and second Y shape filter.

Furthermore, a second through hole is formed in one side of the water inlet pipe, and the water inlet pipe is fixedly connected with the second differential pressure meter connecting pipe at the second through hole.

Furthermore, a third through hole is formed in one side of the water outlet pipe, and the water outlet pipe is fixedly connected with the first differential pressure meter connecting pipe at the third through hole.

The utility model has the advantages that:

1. by arranging the two Y-shaped filters, when one Y-shaped filter is used, clean water flow filtered by the Y-shaped filter can reversely pass through the filter screen of the other Y-shaped filter, and the filter screen of the other Y-shaped filter is backwashed, so that the cleaning effect is improved;

2. the two Y-shaped filters are arranged and connected in parallel on the water pipe, so that the water can be intermittently used, when the second Y-shaped filter is backwashed by using the filtered water of the first Y-shaped filter, the second Y-shaped filter can still filter to produce water, and vice versa, the trouble that the water supply of a filtering system needs to be stopped when the filter screen is cleaned is avoided, and the working efficiency of the filtering system is improved;

3. through setting up fixed block and support frame, the support frame is the spring form, can make the filter screen fixed with the inner wall of Y shape filter drain, avoids the rivers through the time, and the impact force makes the filter screen aversion, influences the filter effect, and the fixed block can make the support frame fixed, avoids the filter screen aversion equally, guarantees the filter effect of Y shape filter.

Compared with the prior art, the utility model discloses can switch two Y shape filters of use through the tee bend valve, open first Y shape filter, utilize first Y shape filter to continuously supply water, utilize the water after the filtration to realize washing the filter screen of second Y shape filter simultaneously, need not to shut down, guarantee the continuous water supply of system.

Drawings

Fig. 1 is a schematic cross-sectional structural diagram of a pre-filter system with an online backwashing function for a dredging vessel according to the present invention;

fig. 2 is a schematic structural diagram of a support frame of a pre-filter system with an online backwashing function for a dredging ship according to the present invention;

fig. 3 is an enlarged view of a portion a in fig. 1.

In the figure: the device comprises a water inlet pipe 1, a three-way valve 2, a first connecting pipe 3, a first Y-shaped filter 4, a support frame 5, a filter screen 6, a fixed block 7, a first valve 8, a second connecting pipe 9, a water outlet pipe 10, a first differential pressure meter connecting pipe 11, a second valve 12, a second Y-shaped filter 13, a differential pressure meter 14, a flange 15, a third connecting pipe 16 and a second differential pressure meter connecting pipe 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a pre-filter system with online backwashing function for a dredging ship comprises a water inlet pipe 1, a three-way valve 2 is connected to the bottom end of the water inlet pipe 1 through threads, a first connecting pipe 3 and a third connecting pipe 16 are respectively connected to the water outlet of the three-way valve 2 through threads, only one of the first connecting pipe 3 and the third connecting pipe 16 is communicated with the water inlet pipe 1 through the connection of the three-way valve 2, a first Y-shaped filter 4 and a second Y-shaped filter 13 are respectively arranged at the bottom ends of the first connecting pipe 3 and the third connecting pipe 16, a first valve 8 and a second valve 12 are respectively arranged at a sewage discharge port of the first Y-shaped filter 4 and the second Y-shaped filter 13, the sewage discharge ports of the first Y-shaped filter 4 and the second Y-shaped filter 13 can be respectively opened by the first valve 8 and the second valve 12, the same second connecting pipe 9 is arranged at the bottom ends of the first Y-shaped filter 4 and the second Y-, first through-hole has been seted up to the bottom of second connecting pipe 9, second connecting pipe 9 has outlet pipe 10 in the welding of first through-hole, one side of outlet pipe 10 is equipped with first differential pressure meter connecting pipe 11, one side of inlet tube 1 is equipped with second differential pressure meter connecting pipe 17, the other end of first differential pressure meter connecting pipe 11 and second differential pressure meter connecting pipe 17 is equipped with same differential pressure meter 14, through the connection of first differential pressure meter connecting pipe 11 and second differential pressure meter connecting pipe 17, differential pressure meter 14 can compare the pressure of inlet tube 1 and outlet pipe 10, judge whether need clear up first Y shape filter 4 or second Y shape filter 13.

In the utility model, the joints of the first connecting pipe 3 and the first Y-shaped filter 4, the first Y-shaped filter 4 and the second connecting pipe 9, the second connecting pipe 9 and the second Y-shaped filter 13, the second Y-shaped filter 13 and the third connecting pipe 16 are all provided with flanges 15, the flanges 15 can ensure that the joints can not leak water, the inner walls of the sewage draining port of the first Y-shaped filter 4 and the second Y-shaped filter 13 are both provided with the filter screen 6, the filter screen 6 is annular, the inner wall of the filter screen 6 is provided with the support frame 5, the support frame 5 can avoid the movement of the filter screen 6, the filtering effect is improved, one end of the support frame 5 is provided with the fixed block 7, the fixed block 7 is annular, the fixed block 7 is connected with the sewage draining port inner wall buckles of the first Y-shaped filter 4 and the second Y-shaped filter 13, the fixed block 7 is convenient to be taken down by the connecting mode of buckles, the replacement of, the better fixed filter screen 6, the second through-hole has been seted up to one side of inlet tube 1, inlet tube 1 has been seted up in second through-hole department and has been welded with second differential pressure meter connecting pipe 17, the third through-hole has been seted up to one side of outlet pipe 10, outlet pipe 10 has been welded with first differential pressure meter connecting pipe 11 in third through-hole department, the pressure of inlet tube 1 and outlet pipe 10 can transmit for differential pressure meter 14 through second differential pressure meter connecting pipe 17 and first differential pressure meter connecting pipe 11.

The working principle is as follows: during the use, first valve 8 and second valve 12 are closed, make inlet tube 1 and first connecting tube 3 connect through three way valve 2, and among the rivers got into first Y shape filter 4 through first connecting tube 3, when rivers pass through filter screen 6, impurity among the rivers was filtered, stops among filter screen 6, and clean rivers get into outlet pipe 10 through second connecting tube 9, and outlet pipe 10 discharges clean rivers.

When the TCMF-75X type differential pressure gauge 14 reaches a set value, the first Y-shaped filter 4 needs to be cleaned, the water inlet pipe 1 is connected with the third connecting pipe 16 through the three-way valve 2, water flow enters the second Y-shaped filter 13 through the second connecting pipe 16, clean water flow enters the water outlet pipe 10 through the second connecting pipe 9, the first valve 8 is opened, part of water flow in the second connecting pipe 9 reversely enters the first Y-shaped filter 4 through the second connecting pipe 9, the clean water flow reversely impacts the filter screen 6, impurities on the filter screen 6 flow out through the sewage discharge port of the first Y-shaped filter 4, after two minutes, the first valve 8 is closed, the water flow is completely discharged from the water outlet pipe 10, and the differential pressure gauge 14 recovers a normal value.

When the differential pressure gauge 14 reaches the set value again, the water inlet pipe 1 is connected with the first connecting pipe 3 through the three-way valve 2, water flow enters the first Y-shaped filter 4 through the first connecting pipe 3, clean water flow enters the water outlet pipe 10 through the second connecting pipe 9, the second valve 12 is opened, a part of water flow in the second connecting pipe 9 reversely enters the second Y-shaped filter 13 through the second connecting pipe 9, the filter screen 6 is washed, after two minutes, the second valve 12 is closed, the water flow is completely discharged from the water outlet pipe 10, and the differential pressure gauge 14 recovers the normal value.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The front-mounted filtering system with the online backwashing function for the dredging ship comprises a water inlet pipe (1) and is characterized in that a three-way valve (2) is arranged at the bottom end of the water inlet pipe (1), a first connecting pipe (3) and a third connecting pipe (16) are respectively arranged at water outlets on two sides of the three-way valve (2), a first Y-shaped filter (4) and a second Y-shaped filter (13) are respectively arranged at the bottom ends of the first connecting pipe (3) and the third connecting pipe (16), a first valve (8) and a second valve (12) are respectively arranged at a sewage outlet of the first Y-shaped filter (4) and the second Y-shaped filter (13), the same second connecting pipe (9) is arranged at the bottom ends of the first Y-shaped filter (4) and the second Y-shaped filter (13), a first through hole is formed in the bottom end of the second connecting pipe (9), second connecting pipe (9) are equipped with outlet pipe (10) at first through-hole, one side of outlet pipe (10) is equipped with first differential pressure meter connecting pipe (11), one side of inlet tube (1) is equipped with second differential pressure meter connecting pipe (17), the other end of first differential pressure meter connecting pipe (11) and second differential pressure meter connecting pipe (17) is equipped with same differential pressure meter (14).

2. The pre-filtering system with the online backwashing function for the dredging ship according to claim 1, wherein flanges (15) are arranged at the joints of the first connecting pipe (3) and the first Y-shaped filter (4), the first Y-shaped filter (4) and the second connecting pipe (9), the second connecting pipe (9) and the second Y-shaped filter (13), and the second Y-shaped filter (13) and the third connecting pipe (16).

3. The pre-filtering system with the online backwashing function for the dredging ship according to claim 2, wherein the first Y-shaped filter (4) and the second Y-shaped filter (13) are respectively provided with a filter screen (6) on the inner wall of the sewage draining exit, the filter screens (6) are annular, and the inner wall of the filter screens (6) is provided with a support frame (5).

4. The pre-filtering system with the online backwashing function for the dredging ship according to claim 3, wherein a fixing block (7) is arranged at one end of the supporting frame (5), the fixing block (7) is annular, and the fixing block (7) is connected with the inner walls of the sewage outlets of the first Y-shaped filter (4) and the second Y-shaped filter (13) in a buckling manner.

5. The pre-filter system with the online backwashing function for the dredging ship according to claim 4, wherein a second through hole is formed at one side of the water inlet pipe (1), and the water inlet pipe (1) is fixedly connected with a second differential pressure gauge connecting pipe (17) at the second through hole.

6. The pre-filter system with the online backwashing function for the dredging ship according to claim 5, wherein a third through hole is formed in one side of the water outlet pipe (10), and the water outlet pipe (10) is fixedly connected with the first differential pressure gauge connecting pipe (11) at the third through hole.