CN208203673U - Centrifugal pump filter device - Google Patents

Abstract

The utility model discloses a kind of centrifugal pump filter devices, it is related to pump technical field, the water inlet in the pump housing is flowed into including the pump housing and for fluid, water inlet is connected with the separator tube for unhurried current, separator tube is connected with screen pipe, screen pipe is equipped with the filter bag for filtering fluid impurity, and screen pipe is connected with the filter device for filtering again to filtered fluid, filter device and pump housing detachable connection.The utility model successively filters the impurity in fluid using filter bag and filter device, impurity can be effectively prevented enters in the pump housing and damage to the pump housing；The separator tube of setting can effectively flow slowly to fluid, prevent the biggish impact force of fluid from damaging to screen pipe and filter device, to extend the service life of the pump housing, filter screen and filter device, reduce use cost.

Description

Centrifugal pump filter device

Technical field

The utility model relates to pump filtration art, in particular to a kind of centrifugal pump filter device.

Background technique

The centrifugal force that generates conveys the pump of liquid when centrifugal pump is a kind of rotation by impeller.Centrifugal pump working principle: it opens , must be hydraulically full in suction line and pump before pump, after turn on pump, impeller high speed rotation, liquid therein rotates together with blade, Under the influence of centrifugal force, impeller is flown away to project outward, the liquid of injection speed in pump case diffuser casing is gradually slack-off, pressure by It is cumulative to add, then from pump discharge, discharge pipe outflow.At this point, being formed and both not had since liquid is thrown toward surrounding at blade center There is the vacuum low-pressure area of air not no liquid again, the liquid in liquid pool is flowed into through suction line and pumped under the action of the atmospheric pressure of pond face Interior, liquid is exactly continuously to be pumped up from liquid pool and continuously flow out from discharge pipe in this way.When in liquid When containing a large amount of impurities, these impurity can constantly hit impeller, make impeller surface Accumulative damage, influence working efficiency, or even stifled Impeller channel is clogged, the outlet pressure of pump is substantially reduced；Impurities in liquid can also impact the sealing of pump simultaneously, send out pump Raw leakage；More serious impurity will lead to motor and burn.

Therefore, it is necessary to improve to solve the above technical problems the prior art.

Utility model content

In view of this, effectivelying prevent impurity to enter the purpose of this utility model is to provide a kind of centrifugal pump filter device The pump housing is damaged in the pump housing.It is realized in particular by following technical scheme:

The centrifugal pump filter device of the utility model flows into the water inlet in the pump housing, water inlet including the pump housing and for fluid Mouth is connected with the separator tube for unhurried current, and separator tube is connected with screen pipe, and screen pipe is equipped with the mistake for filtering fluid impurity Filter bag, screen pipe are connected with the filter device for filtering again to filtered fluid, and filter device is detachable with the pump housing Connection.

Further, the filter device includes the fixed block and the staggered filter screen of at least two mesh of hollow structure, Filter screen puncture is fixed in sealing ring, and sealing ring is surrounded by through-hole, and fixed block includes preceding fixed block and rear fixed block, preceding solid Determine block and be equipped with the boss to match with through-hole, rear fixed block is equipped with the groove to match with through-hole, and filter screen is arranged in preceding fixation Between block and rear fixed block, the mesh number of the filter screen close to the pump housing is less than close to the mesh number of the filter screen of activated carbon tube.

Further, the deslagging device for removing residual impurity on filter screen, filter device are equipped between the filter screen On be additionally provided with blowdown chamber for receiving impurity on filter screen.

Further, the deslagging device includes the shift(ing) ring being arranged between filter screen, and shift(ing) ring is circumferentially detachably connected There is cleansing bar, shift(ing) ring is connected with for driving shift(ing) ring mobile or the slide device of rotation.

Further, the slide device includes sliding bar and the fixed link that is fixedly connected with sliding bar, fixed link and movement Ring is fixedly connected.

Further, the filter device is obliquely installed.

Further, the water inlet is additionally provided with the buffering spacer for unhurried current.

Further, the cleansing bar uses elastic material, and the diameter of cleansing bar is no more than the diameter of filter screen mesh.

The utility model has the beneficial effects that the utility model is using filter bag and filter device successively to the impurity in fluid It is filtered, impurity can be effectively prevented enters in the pump housing pump housing is damaged；The separator tube of setting can be effectively to fluid It flows slowly, prevents the biggish impact force of fluid from damaging to screen pipe and filter device, to extend the pump housing, screen pipe With the service life of filter device, use cost is reduced；Other beneficial effects of the utility model will combine to be implemented in detail below Example is further detailed.

Detailed description of the invention

The utility model is further described with reference to the accompanying drawings and examples:

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the enlarged diagram of A in Fig. 1.

In figure: 1, water inlet；2, separator tube；3, filter bag；4, screen pipe；5, preceding fixed block；6, boss；7, sealing ring； 8, rear fixed block；9, the pump housing；10, groove；11, thin filter screen；12, deslagging device；13, coarse filtration net；14, through-hole；121, it draws Ring；122, shift(ing) ring；123, cleansing bar；124, fixed link；125, sliding bar

Specific embodiment

As shown in the figure: the centrifugal pump filter device in the present embodiment flows into the pump housing 9 including the pump housing 9 and for fluid Water inlet 1, water inlet 1 are connected with the separator tube 2 for buffer fluid impact force, and separator tube 2 is connected with screen pipe 4, screen pipe 4 It is interior to be equipped with filter bag 3 for filtering fluid impurity, a filter bag 3 is at least set in screen pipe 4, filter bag 3 passes through fastening Part such as screw or bolt are fixed on screen pipe 4, and 3 design for disassembly of filter bag facilitates the cleaning of filter bag, the present embodiment In, a filter bag 3 is set in screen pipe 4, and separator tube 2 is connected to water inlet 1 with screen pipe 4 respectively, and screen pipe 4 connects useful In the filter device refiltered to filtered fluid, filter device and 9 detachable connection of the pump housing, filter device and pump It can be attached by fastener, such as bolt or screw between body 9, facilitate the installation, disassembly and maintenance of filter screen device, prevented Only wherein parts damages when need replacing all components, avoid the increase of the use cost of consumer.

The impurity in fluid is filtered using filter bag and filter screen device, impurity can be effectively prevented and enter the pump housing In the pump housing is damaged；The separator tube of setting can effectively flow slowly to fluid, prevent the biggish impact force pair of fluid Screen pipe and filter device damage, to extend the service life of the pump housing, screen pipe and filter screen device, reduce use at This.

In the present embodiment, the filter screen device includes the fixed block and the staggered mistake of at least two mesh of hollow structure Strainer, filter screen puncture are fixed in sealing ring 7, and sealing ring 7 is surrounded by through-hole 14, and sealing ring 7 uses elastic seal ring, Gu Determining block includes preceding fixed block 5 and rear fixed block 8, and preceding fixed block 5 is equipped with the boss 6 to match with through-hole 14, and rear fixed block 8 is equipped with The groove 10 to match with through-hole 14, preceding fixed block 5 are connect with activated carbon tube 4, and rear fixed block 8 is connect with the pump housing 9, preceding fixed block 5 and the connection of rear fixed block 8 be all made of and be detachably connected, can be attached by fastener, fastener can use bolt Or screw etc., facilitate installation, disassembly；Filter screen is arranged between preceding fixed block 5 and rear fixed block 8, close to the mistake of activated carbon tube 4 Strainer, that is, rough estimate strainer 13 mesh number is less than filter screen, that is, thin filter screen 11 mesh number close to the pump housing 9, it is, coarse filtration net The diameter of 13 mesh is greater than the diameter of the mesh of thin filter screen 11, and coarse filtration net 13 filters larger-diameter impurity, diameter compared with Small impurity is filtered by thin filter screen 11, so that the fluid flowed into the pump housing 9 be made to be purified, impurity is to the pump housing in reduction fluid 9 spoilage.

It is equipped with the deslagging device 12 for removing residual impurity on filter screen in the present embodiment, between the filter screen, removes The setting of slag device 12 can remove simultaneously on coarse filtration net 13 and thin filter screen 11 between coarse filtration net 13 and thin filter screen 11 Impurity is additionally provided with the blowdown chamber for receiving impurity on filter screen on filter device, and blowdown chamber is detachably connected with filter device, Impurity in easy cleaning blowdown chamber, the impurity on filter screen is after deslagging device 12 is removed the gred, it is possible to reduce impurity pair The blocking of filter screen mesh increases filter area, is more efficiently filtered to the impurity in fluid, prevents impurity from entering pump In body 9, the pump housing 9 is caused to damage, increases use cost.

In the present embodiment, the deslagging device 12 includes the shift(ing) ring being arranged between coarse filtration net 13 and thin filter screen 11 122, shift(ing) ring 122 is circumferential to be removably connected with cleansing bar 123, shift(ing) ring 122 be connected with for driving shift(ing) ring 122 mobile or The slide device of rotation, the length for being mounted on the cleansing bar 123 on shift(ing) ring 122 can be slightly larger than shift(ing) ring 122 to filter screen The distance between, item 123 convenient for cleaning clears up the mesh of filter screen；Slide device connects shift(ing) ring 122, to control Shift(ing) ring 122 moves on the direction parallel with filter screen, to realize cleaning of the cleansing bar 123 to filter screen.

In the present embodiment, the slide device includes sliding bar 125 and the fixed link being fixedly connected with sliding bar 125 124, Fixed link 124 is fixedly connected with shift(ing) ring 122, and fixed link 124 is arranged inside shift(ing) ring 122,124 both ends of fixed link and movement Ring 122 is fixedly connected, and sliding bar 125 is fixed at the center of fixed link 124 or other positions, in the present embodiment, sliding Bar 124 is arranged at the center of fixed link 124, and sliding bar 125 drives shift(ing) ring 122 along flat with filter screen by fixed link 124 It when capable direction is mobile, is more uniformly stressed, the process of sliding is also more smooth, increases the clean efficiency of filter screen, sliding It is provided with pull ring 121 on one end in lever 125 far from shift(ing) ring 122, allows the operator to more easily catch sliding bar 125 Holding end, allow operation it is more convenient.

In the present embodiment, the filter device is obliquely installed, and fluid sequentially enters separator tube 2 and active carbon from water inlet 1 Pipe 4 enters back into filter device after activated carbon tube 4 is to the impurity absorption in fluid, since the flow of fluid is larger, have compared with Big impact force, filter device, which uses to be obliquely installed, can be effectively prevented effect of the impurity in fluid in biggish impact force Squeeze it is lower and by filter device, so that filter device is unable to reach the purpose being filtered to fluid, make impurity in fluid into Enter the damage that the pump housing 9 is caused in the pump housing 9.

In the present embodiment, the buffering spacer for unhurried current is additionally provided at the water inlet 1, buffering spacer uses elastic buffer Gasket, elastic buffer gasket preferably can play the role of buffering to the impact force of fluid, prevent the biggish impact force of fluid Separator tube 2, activated carbon tube 4 and filter device are damaged.

In the present embodiment, the cleansing bar 123 uses elastic material, such as rubber type of material or hairbrush class, cleansing bar Porous material, such as sponge kind or bristle class material can also be used, the diameter of cleansing bar 123 is no more than filter screen net The diameter in hole, elastic cleansing bar 123 can also avoid to avoid the scratch for causing filter screen when cleaning to filter screen to mistake Strainer damages, and influences the filtering function of filter screen；The diameter of cleansing bar 123 is no more than the diameter of filter screen mesh, makes clear Clean item 123 can also clear up mesh, so that filter screen be allow more preferably to be filtered to the impurity in fluid.

Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model It encloses, should all cover in the scope of the claims of the utility model.

Claims (8)

1. a kind of centrifugal pump filter device, it is characterised in that: flow into the water inlet in the pump housing, water inlet including the pump housing and for fluid Mouth is connected with the separator tube for unhurried current, and separator tube is connected with screen pipe, and screen pipe is equipped with the mistake for filtering fluid impurity Filter bag, screen pipe are connected with the filter device for filtering again to filtered fluid, and filter device is detachable with the pump housing Connection.

2. centrifugal pump filter device according to claim 1, it is characterised in that: the filter device includes hollow structure Fixed block and the staggered filter screen of at least two mesh, filter screen puncture are fixed in sealing ring, and sealing ring is surrounded by logical Hole, fixed block include preceding fixed block and rear fixed block, and preceding fixed block is equipped with the boss to match with through-hole, rear fixed block be equipped with The groove that through-hole matches, filter screen are arranged between preceding fixed block and rear fixed block, close to the mesh of the filter screen of activated carbon tube Number is less than the mesh number of the filter screen close to the pump housing.

3. centrifugal pump filter device according to claim 2, it is characterised in that: be equipped between the filter screen for removing The deslagging device of residual impurity on filter screen is additionally provided with the blowdown chamber for receiving impurity on filter screen on filter device.

4. centrifugal pump filter device according to claim 3, it is characterised in that: the deslagging device includes that setting is being filtered Shift(ing) ring between net, shift(ing) ring are circumferentially removably connected with cleansing bar, shift(ing) ring be connected with for driving shift(ing) ring mobile or The slide device of rotation.

5. centrifugal pump filter device according to claim 4, it is characterised in that: the slide device include sliding bar and with The fixed link that sliding bar is fixedly connected, fixed link are fixedly connected with shift(ing) ring.

6. centrifugal pump filter device according to claim 5, it is characterised in that: the filter device is obliquely installed.

7. centrifugal pump filter device according to claim 6, it is characterised in that: the water inlet is additionally provided with for flowing slowly Buffering spacer.

8. centrifugal pump filter device according to claim 7, it is characterised in that: the cleansing bar uses elastic material, clearly The diameter of clean item is no more than the diameter of filter screen mesh.