CN202900785U

CN202900785U - Fish pump for saury fishing boat

Info

Publication number: CN202900785U
Application number: CN 201220611667
Authority: CN
Inventors: 朱清澄; 赵小鹏
Original assignee: Shanghai Maritime University; Ningbo Jessn Ocean Development Co Ltd
Current assignee: Shanghai Maritime University; Shanghai Ocean University; Ningbo Jessn Ocean Development Co Ltd
Priority date: 2012-11-19
Filing date: 2012-11-19
Publication date: 2013-04-24
Anticipated expiration: 2022-11-19

Abstract

The utility model discloses a fish pump for a saury fishing boat. The fish pump comprises a turbine which is respectively communicated with a fish outlet pipe and a fish inlet pipe, and the bottom of the turbine is communicated with a water pipe provided with a valve. According to the fish pump, seawater left in the fish pump can be discharged timely, and therefore, the seawater is prevented from corroding a pump body, an impeller and other parts inside the pump.

Description

Saury dredger fishpump

Technical field

The utility model relates to the fishery apparatus field, more specifically, relates to a kind of vacuum fishpump of using for delivery of fish.

Background technique

The fishpump working principle is: with the pump housing negative pressure state that is evacuated, fish and seawater are inhaled in the pump housing from pumping fish tube by vacuum pump, and starting motor drives the turbine rotation, with fish and seawater from casing valve, the discharge of fish pipe.Can close vacuum pump behind the normal clingfish.

After fishpump was finished using, a part of seawater can remain in the pump housing, and particularly long-time (such as fishing off season), seawater was at parts such as the pump housing internal corrosion pump housing, impellers when not using fishpump.Although the pump housing of fishpump, impeller adopt corrosion-resistant, high-intensity aluminium alloy casting, but be immersed in for a long time in the seawater, particularly seawater and air intersection, easier electrochemical corrosion, cause pump housing attenuate and severe local corrosion, mostly be helcoid pitting corrosion, be easy to form perforation, the pump housing is scrapped.Therefore be necessary to make improvements.

Summary of the invention

The utility model provides saury dredger fishpump for the deficiencies in the prior art.

The utility model is achieved through the following technical solutions: saury dredger fishpump, comprise turbine, on turbine, be communicated with respectively the fish pipe and advance the fish pipe, bottom at described turbine is communicated with water pipe, at water pipe valve is set, when fishpump does not use, can in time discharge a large amount of seawater that exist in the fishpump, prevent that seawater is at parts such as the pump housing internal corrosion pump housing, impellers.

In the technique scheme, be provided with boss in the bottom of described turbine, offer tapped hole at boss, twist in tapped hole and establish a joint, described water pipe sleeve is located on the described joint.

The utility model compared with prior art has following beneficial effect: can in time discharge the seawater that remains in the fishpump, prevent that seawater from remaining in the parts such as pump housing internal corrosion pump housing inwall, impeller.

Description of drawings

Fig. 1 is perspective view of the present utility model.

Fig. 2 is the structural representation of the utility model turbine.

Fig. 3 is the local amplification view at A place among Fig. 2.

Fig. 4 is the structural representation of turbine part.

Fig. 5 is the structural representation of chamber door part.

Fig. 6 is plane structure sectional view of the present utility model.

Fig. 7 is the partial enlarged drawing at B place among Fig. 6.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail: referring to Fig. 1 to Fig. 7, saury dredger fishpump, comprise turbine 1, described turbine 1 comprises housing and is arranged at the blade 12 of enclosure interior, described blade 12 is connected connection by axle 14 with motor, joint at described turbine 1 and axle 14 arranges carbon fiber braided packing 16, in described carbon fiber braided packing 16 rear ends opening 19 is set, at opening 19 interior sheathed fixed covers 17, in fixed cover 17 rear ends backbone sealing ring 20 is set, backbone sealing ring 20 is used for axle 14 and fixed cover 17 are sealed, prevent that in the process that fishpump is vacuumizing gas spills from axle 14 and fixed cover 17.

Described fixed cover 17 is positioned at backbone sealing ring 15 front positions and is provided with O type circle 18, and O type circle 18 prevents the seepage of gas between fixed cover 17 and the opening 19 for the sealing between fixed cover 17 and the opening 19.

When fishpump uses after not using for a long time first be, carbon fiber braided packing this moment 16 transition dryings are led, produce and shrink, cause in vacuum, a large amount of gas can be from seepage, owing to have

backbone sealing ring

20 and 18 sealings of O type circle at carbon fiber braided packing 16 back-end locations, like this when carbon fiber braided packing 16 can not fine effect, can play sealing effect by backbone sealing ring 20 and O type circle 18, after fishpump was moving several times, carbon fiber braided packing this moment 16 expansion that has been soaked in water, has fine sealing effect, and backbone sealing ring 20 and O type circle 18 can play the effect of auxiliary seal, guarantee that gas can seepage.

Turbine 1 housing is rounded, and namely the turbine shroud inwall is all excessive with circular arc, so inwall is without corner angle, guarantee fish in turbine inside through out-of-date, can not strike on the corner angle, reduce the injury that the fish body is subject to.Be communicated with fish pipe 2 in neutral position, turbine 1 housing upper end, fish pipe 2 and turbine 1 housing joint 50 madial walls adopt circular arc excessive.When guaranteeing that fish and water enter fish pipe 2, can throw away along the turbine tangent direction, the collision that reduces on the corner to receive further reduces the injury that the fish body is subject to because of collision.

Fish pipe 2 is positioned at turbine 1 joint upper end position and is provided with casing 7, in described casing 7 bottoms, one-way cock (accompanying drawing does not show) is set, but be provided with the chamber door 70 of open and close at casing 7, described chamber door 70 comprises the doorframe 700 that fixedly is loaded on the casing 7 and the cover plate 71 that is hinged on the doorframe 700, be provided with through hole 73 at described cover plate 71, doorframe 700 is corresponding to being provided with nut 72 on through hole 73 positions, cover plate 71 is fixed by the stubborn nut 72 of establishing in through hole 73, when needs are opened the fish outlet casing its inside are cleared up, only need to turn on nut 72 opens cover plate 71 again and get final product use convenience very.

Be provided with into fish pipe 3 in turbine 1 housing one side.Near advancing fish pipe 3 end positions tee union 30 is being set, joint of described tee union 30 with advance fish pipe 3 and be communicated with, be communicated with respectively vacuum pump (accompanying drawing does not mark) on described tee union 30 other two joints.During use, with the pump housing negative pressure state that is evacuated, fish and seawater are inhaled in the pump housing from pumping fish tube by vacuum pump, and starting motor drives the turbine rotation, with fish and seawater from 2 discharges of fish pipe.When if the situation of a vacuum pump failure occurring, then can open another vacuum pump, thereby make fishpump can continue operation, so just guaranteed that fishpump can stably operation within the long time period.

Be provided with boss 10 in the bottom of described turbine 1, offer tapped hole 11 at boss 10, in tapped hole 11, twist and establish a joint 5, described water pipe 4 is sheathed on the described joint 5, at water pipe 4 valve 6 is set, when fishpump does not use, valve 6 is opened, and pump housing maritime interior waters is all emptying, simultaneously upper end fish pipe 2 openings fresh water flushingpump intracoelomic cavity, avoided the corrosion of seawater to the pump housing, greatly prolonged the working life of fishpump, when fishpump used, valve 6 was closed, this moment, the sealability of fishpump was also unaffected, therefore can not affect the normal use of fishpump.

Claims

1. saury dredger fishpump, comprise turbine (1), on turbine (1), be communicated with respectively fish pipe (2) and advance fish pipe (3), it is characterized in that: be communicated with water pipe (4) in the bottom of described turbine (1), at water pipe (4) valve (6) be set.

2. saury dredger fishpump as claimed in claim 1, it is characterized in that: be provided with boss (10) in the bottom of described turbine (1), offer tapped hole (11) at boss (10), twist in tapped hole (11) and establish a joint (5), described water pipe (4) is sheathed on the described joint (5).