CN208252355U - A kind of low energy consumption noise-lowering centrifugal pump - Google Patents

Abstract

The utility model discloses a kind of low energy consumption noise-lowering centrifugal pumps, including the pump housing, into pump line, stock tank and inlet pipe, impeller is articulated in the pump case of the pump housing, stock tank includes pond body, arc deflector and baffler, inlet pipe is from top to bottom connected in the middle part of pond body, and inlet pipe penetrates center in pond body, inlet pipe is fixed on pond body through fixed frame, there is one end of impeller into pump line one end connection pump housing, pond body side is accessed into the pump line other end, baffler be vertically fixed on pond body and be located at into the opposite pond body other side of pump line, arc deflector is extended to below baffler by the lower end of inlet pipe.The utility model can reduce energy consumption while reduce noise, moreover it is possible to reduce impeller cavitation erosion degree.

Description

A kind of low energy consumption noise-lowering centrifugal pump

Technical field

The utility model relates to paper grade (stock) pumps, relate in particular to a kind of low energy consumption noise-lowering centrifugal pump.

Background technique

In paper grade (stock) equipment, except pulp pump is to apply to provide the pump of slurries mobilization dynamic in scummer, it is suitable for paper maker Approach system in skill before various slurrying processes and paper machine, with removed by high speed slurries and scummer in paper pulp specific gravity compared with Big screenings, such as the various heavy seeds of metallic particles, the grains of sand and part light impurity.Due to existing except pulp pump is using centrifugation Pump, therefore it generates the mode of centrifugal force for impeller to be pumped slurry, however, slurry is to enter centrifugal pump pump by inlet pipe Body, and the screenings in slurry is easy entrained gas or chemical reaction occurs and generates gas or collides generation gas with pipeline, this The slurry that all will lead into the pump housing is mingled with more gas, on the one hand easily corrodes impeller, reduces efficiency and energy consumption is caused to increase Add, another aspect gas starting is easy to hit with impeller and cause loud noise.

Utility model content

For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of low energy consumption noise-lowering centrifugal pump, Energy consumption can be reduced while reducing noise, moreover it is possible to reduce impeller cavitation erosion degree.

The purpose of this utility model is achieved through the following technical solutions:

A kind of low energy consumption noise-lowering centrifugal pump, including the pump housing, into pump line, stock tank and inlet pipe, be articulated in the pump case of the pump housing Impeller, stock tank include pond body, arc deflector and baffler, and inlet pipe is from top to bottom connected in the middle part of pond body, and inlet pipe is worn Enter center, inlet pipe in pond body and be fixed on pond body through fixed frame, there is one end of impeller into pump line one end connection pump housing, into pump line The other end accesses pond body side, and baffler is vertically fixed on pond body and is located at into the opposite pond body other side of pump line, and arc is led Flowing plate is extended to below baffler by the lower end of inlet pipe.

Further, low energy consumption noise-lowering centrifugal pump further includes auxiliary tube and is connected into slurry general pipeline, by auxiliary tube one end into pump Pipe is equipped with manually-operated gate and check-valves on auxiliary tube, and the auxiliary tube other end is accessed into slurry general pipeline, also and inlet pipe into slurry general pipeline Connection.

Further, sieve plate is equipped in pond body, which covers in the interface connecting into pump line with pond body side.

Further, low energy consumption noise-lowering centrifugal pump further includes floating gear, the slurry for being suspended in pond body for pulling sieve plate In material, the sieve plate is extended to the middle part of interface by the upper end of the interface.

Further, floating gear includes limiting bracket, floating ball and connecting rod, and limiting bracket is fixed on pond body, and has limit Chamber, floating ball are limited in limit chamber, and connecting rod is vertically arranged, and the upper end of connecting rod is fixed in floating ball, the lower end of connecting rod and sieve plate Upper end is fixed, and floating ball floats on the liquid level of slurry in pond body.

Further, there is the outlet being pierced by for floating ball and sieve plate at the top of limit chamber.

Compared with prior art, the utility model has the following beneficial effects:

The mode being pumped in the pump housing by turbine centrifugal is directly entered relative to slurry, the utility model is by leading to inlet pipe Enter in stock tank, be discharged in this way, the gas being mingled in screenings will float in the slurry of stock tank, and is that gas is avoided also to have not enough time to Floating and is just admitted into pump line, the utility model is first sent slurry by arc deflector to far from into the pond body side of pump line, Simultaneously under baffler blocking, most of slurry will below the baffler further around after crossing above baffler into pump line, so The effect of delay release gas can be provided slurry, and further abundant removal gas, orderly by the means for removing gas above In conjunction with so that being passed through the intracorporal slurry of pump reduces energy consumption, simultaneously because subtracting to improve slagging-off the way containing few gas Gas is lacked, moreover it is possible to reduce the noise of impeller and bubbles strike, while reduce the possibility of impeller cavitation erosion, cavitation erosion degree mitigates.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model low energy consumption noise-lowering centrifugal pump.

In figure: 1, the pump housing；11, impeller；2, into pump line；3, stock tank；31, fixed frame；32, pond body；33, arc deflector； 34, baffler；4, inlet pipe；5, sieve plate；6, interface；7, limiting bracket；8, floating ball；9, connecting rod；10, outlet；12, it assists Pipe；13, into slurry general pipeline；14, manually-operated gate；15, check-valves.

Specific embodiment

The utility model is described in further detail in the following with reference to the drawings and specific embodiments.

A kind of low energy consumption noise-lowering centrifugal pump as shown in Figure 1, including the pump housing 1, into pump line 2, stock tank 3 and inlet pipe 4, the pump housing Impeller 11 is articulated in 1 pump case, stock tank 3 includes pond body 32, arc deflector 33 and baffler 34, and inlet pipe 4 is from top to bottom It is connected to 32 middle part of pond body, and inlet pipe 4 penetrates center in pond body 32, inlet pipe 4 is fixed on pond body 32 through fixed frame 31, into pump 2 one end of pipe is connected to one end that the pump housing 1 has impeller 11, accesses 32 side of pond body into 2 other end of pump line, baffler 34 is vertically fixed In pond body 32 and it is located at into opposite 32 other side of pond body of pump line 2, arc deflector 33 extends to resistance by the lower end of inlet pipe 4 34 lower section of partition.

By the way that inlet pipe 4 to be passed through in stock tank 3, in this way, the gas being mingled in screenings will go up floating mat in the slurry of stock tank 3 It out, is that gas is avoided also to have not enough time to float and be just admitted into pump line 2, the utility model will be starched by arc deflector 33 Material is first sent to separate into 32 side of pond body of pump line 2, while under the blocking of baffler 34, and most of slurry will be under baffler 34 Side can so provide slurry the effect of delay release gas, further fill further around entering after crossing 34 top of baffler into pump line 2 Divide removal gas, the means by removing gas above orderly combine, so that the slurry being passed through in the pump housing 1 contains few gas, with Slagging-off the way is improved, energy consumption is reduced, simultaneously because reducing gas, moreover it is possible to reduce making an uproar for impeller 11 and bubbles strike Sound, while the possibility of the cavitation erosion of impeller 11 is reduced, cavitation erosion degree mitigates.

Wherein, pond body 32 can be used concreting and form, and fixed frame 31, arc deflector 33, baffler 34 can be adopted It is made of aluminum or copper.The fixed form of arc deflector 33 and baffler 34 can be used fixed bracket and be connected to pond body 32 Pool wall.Wherein, 33 one side of arc deflector has carried out away from the guidance into pump line 2 slurry, on the other hand but also slurry Material washes away the lower end of baffler 34, to avoid 34 dross of baffler.

Further, slurry lower for screenings concentration, such as screenings content is in the case of 0.2%-0.5%, screenings Entrained gas will be greatly decreased, in this case, to further decrease energy consumption, the low energy consumption noise-lowering centrifugal of the present embodiment Pump further includes auxiliary tube 12 and is connected into slurry general pipeline 13, by 12 one end of auxiliary tube into pump line 2, is equipped with hand-operated valve on auxiliary tube 12 Door 14 and check-valves 15,12 other end of auxiliary tube are accessed into slurry general pipeline 13, are also connect into slurry general pipeline 13 with inlet pipe 4.In this way, logical It crosses and opens manually-operated gate 14 manually, the slurry for making to flow into slurry general pipeline 13 flows into inlet pipe 4 all the way, and another way also flows into auxiliary tube 12, and stopped to flow back caused by the collision of two-way slurry by check-valves 15, in this way, the circulation before the pump housing 1 can be expanded into, reduce Impeller 11 is into slurry resistance, to reduce energy consumption.

Situation higher for screenings levels, such as screenings content remove in screenings in 0.6%-3% to be further The gas that stubbornness is mingled with, is equipped with sieve plate 5 in pond body 32, which covers in connecing into pump line 2 with what 32 side of pond body was connect Mouth 6.In this way, screenings is through will be by frictional force, to form more efficiently removal Gas Vibration when screen pack 5.

After setting sieve plate 5, resistance will be generated to the swabbing action of the pump housing 1, and easily lead to the more of slurry in pond body 32 It rises and falls less, when slurry liquid level is too low, screenings, the gas residence time in pond body 32 are too short, are unfavorable for excluding gas, are Improve this problem, this low energy consumption noise-lowering centrifugal pump further includes floating gear, the slurry for being suspended in pond body 32 for pulling sieve plate 5 In material, the sieve plate 5 is extended to the middle part of interface 6 by the upper end of the interface 6.In this way, when the resistance mistake of the generation of sieve plate 5 When big, the corresponding pump housing 1 aspirates slurry and reduces, and 32 entoplasm feed liquid surface of pond body rises, and drives floating gear to rise, and then with electric filter Plate 5 rises and larger opens the interface 6, reduces the resistance to interface 6；Conversely, slurry liquid level declines, sieve plate 5 is more Ground covers the interface 6, increases the resistance to interface 6,32 entoplasm feed liquid surface of pond body can so be made to be maintained at required liquid level Upper balance.

Specifically, the floating gear of the present embodiment includes limiting bracket 7, floating ball 8 and connecting rod 9, and limiting bracket 7 is fixed on pond Body 32, and there is limit chamber, floating ball 8 is limited in limit chamber, and connecting rod 9 is vertically arranged, and the upper end of connecting rod 9 is fixed in floating ball 8, The lower end of connecting rod 9 is fixed with 5 upper end of sieve plate, and floating ball 8 floats on the liquid level of slurry in pond body 32.Floating ball 8 floats on 32 entoplasm of pond body The liquid level of material, for driving sieve plate 5 to make opening and closing movement to interface 6 through connecting rod 9.And floating ball 8 is limited in limit chamber, can keep away Exempt from floating ball 8 and generates lateral displacement.For the screenings more easily cleared up in sieve plate 5, limit chamber top has for floating ball 8 and filter The outlet 10 that web plate 5 is pierced by so can manually take out sieve plate 5 through outlet 10.

The embodiments of the present invention is without being limited thereto, according to the above content of the utility model, utilizes the general of this field Logical technological know-how and customary means, under the premise of not departing from the utility model above-mentioned basic fundamental thought, the utility model may be used also To make the modification, replacement or change of other diversified forms, all fall within the utility model rights protection scope.

Claims (6)

1. a kind of low energy consumption noise-lowering centrifugal pump, which is characterized in that including the pump housing, into pump line, stock tank and inlet pipe, the pump case of the pump housing It is inside articulated with impeller, stock tank includes pond body, arc deflector and baffler, and inlet pipe is from top to bottom connected in the middle part of pond body, and Inlet pipe penetrates center, inlet pipe in pond body and is fixed on pond body through fixed frame, has the one of impeller into pump line one end connection pump housing Pond body side is accessed into the pump line other end in end, and baffler is vertically fixed on pond body and is located at another with into the opposite pond body of pump line Side, arc deflector are extended to below baffler by the lower end of inlet pipe.

2. low energy consumption noise-lowering centrifugal pump according to claim 1, which is characterized in that the low energy consumption noise-lowering centrifugal, which pumps, further includes It auxiliary tube and is connected into slurry general pipeline, by auxiliary tube one end into pump line, manually-operated gate and check-valves, auxiliary tube is installed on auxiliary tube The other end is accessed into slurry general pipeline, is also connect into slurry general pipeline with inlet pipe.

3. low energy consumption noise-lowering centrifugal pump according to claim 1, which is characterized in that be equipped with sieve plate, the strainer in pond body Plate is covered in the interface connecting into pump line with pond body side.

4. low energy consumption noise-lowering centrifugal pump according to claim 3, which is characterized in that the low energy consumption noise-lowering centrifugal, which pumps, further includes Floating gear is suspended in the slurry of pond body for pulling sieve plate, and the sieve plate is extended to by the upper end of the interface and connect The middle part of mouth.

5. low energy consumption noise-lowering centrifugal pump according to claim 4, which is characterized in that floating gear includes limiting bracket, floats Ball and connecting rod, limiting bracket is fixed on pond body, and has limit chamber, and floating ball is limited in limit chamber, and connecting rod is vertically arranged, even The upper end of bar is fixed in floating ball, and lower end and the sieve plate upper end of connecting rod are fixed, and floating ball floats on the liquid level of slurry in pond body.

6. low energy consumption noise-lowering centrifugal pump according to claim 5, which is characterized in that have at the top of limit chamber for floating ball and filter The outlet that web plate is pierced by.