CN2434450Y

CN2434450Y - Sucking separation seawater pump

Info

Publication number: CN2434450Y
Application number: CN 00212932
Authority: CN
Inventors: 丛立成
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-11
Filing date: 2000-08-11
Publication date: 2001-06-13
Anticipated expiration: 2010-08-11

Abstract

The utility model relates to a sea water pump used for cabins for sucking cooling water and filthy water in cabins. Because an original sea water pump is provided with a pump main machine vane wheel mechanism on the middle part of a pump shaft causing convenient repair and can not substantially satisfy the cooling requirement of a ship main machine, the main technology solving scheme of the technology is that the center vane wheel mechanism of the pump is arranged on one side end of the pump shaft and a vane wheel mechanism is caused to be a vane wheel mechanism of a centrifugal pump or a mixed flow pump. The technology has the advantages of easy repair, strong loading resisting capacity of pump shaft and low power and can substantially satisfy operating requirements.

Description

Suction is from the formula sea water pump

The utility model relates to a kind of sea water pump that uses for boats and ships, in particular a kind of have bilobed wheel mechanism, be particularly suitable for various fishing boats etc. and be used to the suction cooling water and take out the sea water pump of cabin addle.

Original sea water pump is two groups of self-priming pump housings are assembled on the transmission pump shaft and constitutes, its concrete constituted mode generally is to be symmetrically installed with two self-priming impeller mechanisms on pump shaft, its pump cover also is that the bearing pump seat has adopted the mode of split left and right symmetry assembling to be fixedly mounted on bilge face equally, and the pump work main body is located in the medium position of this sea water pump.1., this kind pump distributed architecture causes many difficulties to maintenance the defective that the sea water pump of this class formation mainly exists has:, the maintenance of carrying out internals must be with pump cover and all dismountings one by one of wherein affiliated parts, also to proofread and correct the transmission engagement degree of belt pulley and ship power main frame after the assembling, programmed sequence of operations complexity, big, the maintenance duration of difficulty, influenced seagoing vessel greatly and gone to sea, also must keep in repair by the professional workforce; 2., because self-priming pump has strict sealing configuration requirement, and power consumpiton is big, its component wear is comparatively serious; 3., because it is few that self-priming pump itself just has the flow of working unit time, the deficiency that lift is little, under fishing vessel and the continuous situation about increasing of ocean fishing vessel horsepower, carry out cooling work with existing double-sucking type sea water pump and seemed awkward, for addressing this problem, shipowners take two kinds of ways usually: the one, enable a Taiwan Straits water pump or centrifugal pump of adapted more again, to replace the coolant pump part of former double suction pump, original one is exclusively used in extraction bilge addle and clear water, self-priming pump or the suction and pumping clear water that gets off that wherein leave unused cooperates the work of taking out the addle pump better, its clear water is discharged outboard, or need not with this partial devices, but can cause another pump housing sealability of real work to weaken greatly and influence it and bring into play its effect, when serious even can't work, or the turnover mouth of pipe of cooling segment shut, but can cause the interior working pressure of pump cover too high, and cause unnecessary power consumpiton and waste, and above-mentioned each settling mode has taken bigger cabin space.So it is not really desirable that existing sea water pump technology is formed.

It is a kind of by changing the mounting structure of pump main body impeller mechanism that the goal of the invention of the utility model patented technology is to provide, and makes it to bear fully the novel sea water pump of required work of drawing water of boats and ships and cooling work.

The suction that realizes the foregoing invention purpose is from the formula sea water pump, its fundamental composition includes the transmission of power wheel of the impeller mechanism that constitutes two groups of water pumps on the pump shaft, pump shaft of horizontal support in the pump cover, pump shaft and is communicated with the turnover mouth of pipe of each impeller pump chamber, the major technique characteristics that the technical program is different from the prior art composition are that one group of impeller mechanism is for constituting the receded disk impeller mechanism of Centrifugal water pump, or for constituting the mixed-flow impeller mechanism of mixed flow pump, itself and self-priming impeller mechanism are installed the side in pump shaft concentratedly, and pump shaft is by a bearing pump seat horizontal support.

The major advantage of the utility model technology is: present technique is arranged at pump shaft one side with the displacement of water pump vane mechanism, pump shaft then can be supported by the bearing pump seat of one, other each the pump cap assembly that constitutes pump chamber is fixed on this bearing pump seat successively, this pump housing package assembly is beneficial to pump housing maintenance, need not dismantle pump seat can keep in repair internal structure, therefore the accurate position of pump shaft and belt pulley and motor is changed to some extent, simplified Maintenance Operating Procedure, accelerated the maintenance progress, reduced influence greatly boats and ships are fished or other ship goes to sea; In addition, the rigging position of present technique is that impeller mechanism and transmission of power wheel is arranged at the both sides of pump shaft and its bearing pump seat respectively, thereby has strengthened the anti-radially torsional interaction of pump shaft, can improve its living load greatly, stocks for the increase of cabin power provides.Because one group of impeller mechanism of present technique is for constituting the centrifugal impeller mechanism of centrifugal pump, or for constituting the mixed-flow impeller mechanism of mixed flow pump, the improvement of this structure not only makes the sidesway of central pump body portion become possibility, and is example with the centrifugal pump group, and its power is 10m for 550w, flow only ³/ h, and former self-priming pump group part power is 850w, and flow is 5500 liters/h, its superiority is higher than self-priming far away and shows, thereby can satisfy the usefulness of the boats and ships motor cooling of each rated horsepower fully, thereby, saved occupation area for shipowners have solved the not enough problem that must other pump machine of compatibility of existing sea water pump cooling capacity, reduced energy consumption, the structure of centrifugal pump is formed the wearing and tearing that also reduced greatly between the parts simultaneously.The axle side mounting structure of impeller mechanism has reduced the quantity that is provided with of water seal and oil sealing, with the oil sealing of pump shaft one water seal parts only need be set and just can realize water-stop, the simplification of its structure has reduced the rate of fault of water-sealing part, and enlarged space between water seal and the oil sealing, big and the tangible weep hole in position of one size just can be set between this water seal and bearing enclosure, thereby guarantee during long-time running, aging or other reason of water seal is easy to find when damaging, and the shipwreck of oozing out causes corrosion and destruction to immerse oil sealing to bearing.In sum, the more existing sea water pump of present technique has significant superiority.

Describe technology contents of the present utility model in detail below in conjunction with accompanying drawing.

Fig. 1 for this suction from the inside of formula sea water pump total assembling structure sectional view

Fig. 2 is the outer set assembling structure schematic representation of this suction from the formula sea water pump.

As shown in the figure, the main composition of the utility model sea water pump includes bearing pump seat 1, in the bearing pump seat 1 by the pump shaft 2 of bearing horizontal support, pump shaft 2 one sides are equipped with adjacent two groups of impeller mechanisms 5,6, its another side is provided with transmission of power wheel 9, be fixed with the pump chamber of the impeller mechanism work that is made of the pump case assembling on the bearing pump seat 1, bearing pump seat 1 is fixed belowdecks or other fixed position by fixing bolt.In the present embodiment, two groups of impeller mechanisms 5,6 of pump shaft 2 one sides and its pump chamber separately constitute Centrifugal water pump, self prime pump respectively, be provided with a self-priming pump case 11 between centrifugal impeller and the self-priming impeller, this pump case 11 cooperates with self-priming impeller water-stop, pump shaft 2 perforation 12 and pump shaft 2 Spielpassung of sandwich plate 11 are in order that make the two-phase pump that borders on the river form the water seal effect of nature each other when work.In the present technique, impeller mechanism 5 also can be the mixed-flow impeller mechanism that constitutes mixed flow pump.Realize each self-enclosed working alone by water seal 4 and oil sealing 3 between self-priming impeller mechanism 6 and the pump shaft bearing, centrifugal pump case 7 is fixedly mounted on the pump seat 1 by bolt 8 by middle pump case 10.In the present embodiment, be provided with a larger-size weep hole 12 between water seal 4 and the oil sealing 3, its effect is that aging or other reason does not reach water-stop and does the time spent in water seal 4 long-term works, and its water that oozes out can be flowed out by weep hole 12, thereby guarantees the oil sealing proper functioning.

Claims

1, a kind of suction is from the formula sea water pump, the pump shaft (2), the pump shaft (2) that include horizontal support in the pump cover are gone up the impeller mechanism (5,6) that constitutes two groups of water pumps, the transmission of power wheel (9) of pump shaft and the turnover mouth of pipe of each impeller pump chamber of connection, it is characterized in that one group of impeller mechanism (5) is for constituting the receded disk impeller mechanism of Centrifugal water pump, or for constituting the mixed-flow impeller mechanism of mixed flow pump, itself and self-priming impeller mechanism (6) are installed concentratedly in a side of pump shaft (2), and pump shaft (2) is by bearing pump seat (a 1) horizontal support.

2, sea water pump according to claim 1 is characterized in that being provided with a weep hole (12) between the oil sealing (3) of the water seal (4) of impeller mechanism and pump shaft bearing.