CN203717451U - Pump case of residue blowdown pump of methane tank - Google Patents

Abstract

The utility model discloses a pump case of a residue blowdown pump of a methane tank. The pump case comprises a drum case body with a vertically arranged center line and the opened upper end, wherein a drum cavity is formed in the case body; the middle of the lower end face of the case body extends downwards to form a circular boss; the boss extends into the case body to allow the boss to be bulged towards the interior of the case body; a flared liquid inlet hole with the big top and the small bottom is formed in the boss; a hole wall of the liquid inlet hole is an arc surface bulged to the center line of the case body; a stop block is arranged at the lower end of the liquid inlet hole and comprises a ring which is coaxial with the case body, and ribbed plates connected between the ring and the hole wall of the liquid inlet hole; an arc groove penetrating through the upper and lower ends of the hole wall is formed in the hole wall of the liquid inlet hole; and a liquid outlet hole is formed in a side wall of the case body. With the adoption of the structure, the pump case effectively prevents straws from being wound on an impeller to burn out a motor, and has the characteristics of ingenious conception, simple structure, easiness in production, low production cost and the like.

Description

Biogas scum liquid pollution discharge pump pump case

Technical field

The utility model belongs to pollution discharge pump technical field, specifically, and particularly a kind of biogas scum liquid pollution discharge pump pump case.

Background technique

At present, biomass pool utilizes ight soil, rubbish and domestic sewage etc. to produce biogas and organic fertilizer, uses more and more general in rural area.The cleaning of biogas scum liquid adopts pollution discharge pump conventionally, and the impeller high speed rotating of pollution discharge pump produces centrifugal force, and the slag liquid in biomass pool is extracted out.But owing to there being a large amount of stalks in biomass pool, in the time of blowdown, stalk is easy to be wrapped on impeller, not only blocking pollution discharging pump, and burn out motor.Existing pollution discharge pump pump case is the housing of cydariform, has the cavity of cydariform in housing, and the bottom of described housing has water intake, on the sidewall of housing, has water outlet.This housing simple in structure, easily stops up for the cleaning of biogas scum liquid.

Model utility content

Technical problem to be solved in the utility model is to provide a kind of biogas scum liquid pollution discharge pump pump case that effectively prevents stalk winding impeller, burns out motor.

The technical solution of the utility model is as follows: a kind of biogas scum liquid pollution discharge pump pump case, comprise the vertical layout of center line and the uncovered drum-shaped shell (3) in upper end, in housing (3), have cydariform chamber, the middle part, lower end surface of described housing (3) is to downward-extension, the conglobate boss of shape (5), described boss (5) extends in housing (3), make boss (5) also towards housing (3) internal projection, in described boss (5), have up big and down small tubaeform inlet opening (5a), the hole wall of described inlet opening (5a) is to the arc surface of housing (3) centerline direction projection, lower end at inlet opening (5a) is provided with block, described block comprise the annulus (6) coaxial with housing (3) and be connected to annulus (6) and inlet opening (5a) hole wall between floor (7), on the hole wall of described inlet opening (5a), have the arc groove (8) that connects the upper and lower two ends of hole wall, on the sidewall of housing (3), have liquid outlet opening (3a).

Adopt said structure, the utility model is by arranging in housing lower end to equal boss of projection inside and outside housing, and on boss, offer up big and down small flaring inlet opening, the hole wall of this inlet opening is to the circular arc of housing centerline direction projection, outer end at inlet opening arranges the block being made up of annulus and floor, on the hole wall of inlet opening, have the groove of arc, in the time that the slag liquid in biomass pool is cleared up, impeller with the edge of a knife is installed in housing, slag liquid enters housing from the lower end of inlet opening, annulus and floor can stop that larger foreign material enter, the hole wall of inlet opening coordinates with impeller simultaneously, by the crushed stalk entering, avoid stalk to be wrapped on impeller, and slag liquid leads through groove, discharge from liquid outlet, thereby effectively prevent that stalk is wound around impeller motor is burnt out.

The width of described groove (8) is 8-30mm, and the width of this groove (8) widens from top to bottom, and the degree of depth of described groove (8) is 0.3-1.3mm, and the degree of depth of this groove (8) is deepened from top to bottom.Groove is better to the guide effect of slag liquid.

Be connected with three legs (9) in the lower end of described housing (3), be connected with strut (10) in the lower end of each leg (9), be provided with leg-of-mutton base plate (11) in the below of described housing (3), described strut (10) is fixed with the respective corners of base plate (11).The support of housing is firm, and can pass through the height of strut adjustment housings.

Evenly be provided with three journal stirrups (4) in the upper end of described housing (3), described journal stirrup (4) is one with housing (3), has the screw that center line is vertically arranged on journal stirrup (4).The installation that journal stirrup is convenient to housing top cover plate is fixed.

The outside horizontal-extending in position of the corresponding liquid outlet opening of described housing (3) (3a), the drain pipe (2) of formation center line horizontal arrangement, the outer end of described drain pipe (2) is connected with the flange plate (1) vertical with drain pipe (2) center line.Drain pipe is convenient to be connected follow-up blowoff line with flange plate.

Beneficial effect: the utility model is by arranging boss in housing lower end, on boss, offer inlet opening, outer end at inlet opening arranges block, on the hole wall of inlet opening, have groove, thereby effectively prevented that stalk is wound around impeller motor is burnt out, have be skillfully constructed, simple in structure, produce easily and the feature such as cost of production is low.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 2.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail:

As shown in Figure 1, Figure 2 and Figure 3, the utility model comprises flange plate 1, drain pipe 2, housing 3, journal stirrup 4, boss 5, annulus 6, floor 7, groove 8, leg 9, strut 10 and base plate 11, wherein, housing 3 is the vertical layout of center line and the cambered outwards cydariform in middle part.In described housing 3, have the cydariform chamber adapting with housing profile, the upper end circle of this housing 3 is uncovered.The lower end surface middle part of described housing 3 is to downward-extension, the conglobate boss 5 of shape, and the upper end of described boss 5, to the interior extension of housing 3, makes boss 5 also towards housing 3 internal projection.The center line of described boss 5 overlaps with the center line of housing 3.In described boss 5, have up big and down small tubaeform inlet opening 5a, the two ends up and down of this inlet opening 5a connect the upper and lower end face of boss 5, and the center line of inlet opening 5a overlaps with the center line of boss 5.The hole wall of described inlet opening 5a is to the arc surface of housing 3 centerline direction projections, is provided with block in the lower end of inlet opening 5a.Described block comprise the annulus 6 coaxial with housing 3 and be connected to annulus 6 and inlet opening 5a hole wall between floor 7, described annulus 6 and floor 7 are all one with housing 3.The floor 7 that the present embodiment is preferably connected between annulus 6 and housing 3 has four, and these four floors 7 are uniformly distributed.On the hole wall of described inlet opening 5a, have an arc groove 8 that connects the upper and lower two ends of hole wall, the width of this groove 8 is 8-30mm, and the width of this groove 8 is widened from top to bottom, the degree of depth of described groove 8 is 0.3-1.3mm, and the degree of depth of this groove 8 is deepened from top to bottom.See from top to bottom, described groove 8 is bending along clockwise direction from bottom to top.

As shown in Figure 1, Figure 2 and Figure 3, on the sidewall of described housing 3, have liquid outlet opening 3a, this liquid outlet opening 3a with the upper end positioned opposite of groove 8.The outside horizontal-extending in position of the corresponding liquid outlet opening 3a of described housing 3, the drain pipe 2 of formation center line horizontal arrangement, the outer end of described drain pipe 2 is connected with the flange plate 1 vertical with drain pipe 2 center lines.Be connected with three legs 9 in the lower end of described housing 3, be connected with strut 10 in the lower end of each leg 9, be provided with leg-of-mutton base plate 11 below described housing 3, described strut 10 is fixed with the respective corners of base plate 11.Evenly be provided with three journal stirrups 4 in the upper end of described housing 3, described journal stirrup 4 is one with housing 3, has the screw that center line is vertically arranged on journal stirrup 4.

Claims (5)

1. a biogas scum liquid pollution discharge pump pump case, comprise the vertical layout of center line and the uncovered drum-shaped shell (3) in upper end, in housing (3), have cydariform chamber, it is characterized in that: the middle part, lower end surface of described housing (3) is to downward-extension, the conglobate boss of shape (5), described boss (5) extends in housing (3), make boss (5) also towards housing (3) internal projection, in described boss (5), have up big and down small tubaeform inlet opening (5a), the hole wall of described inlet opening (5a) is to the arc surface of housing (3) centerline direction projection, lower end at inlet opening (5a) is provided with block, described block comprise the annulus (6) coaxial with housing (3) and be connected to annulus (6) and inlet opening (5a) hole wall between floor (7), on the hole wall of described inlet opening (5a), have the arc groove (8) that connects the upper and lower two ends of hole wall, on the sidewall of housing (3), have liquid outlet opening (3a).

2. biogas scum liquid pollution discharge pump pump case according to claim 1, it is characterized in that: the width of described groove (8) is 8-30mm, and the width of this groove (8) is widened from top to bottom, the degree of depth of described groove (8) is 0.3-1.3mm, and the degree of depth of this groove (8) is deepened from top to bottom.

3. biogas scum liquid pollution discharge pump pump case according to claim 1 and 2, it is characterized in that: be connected with three legs (9) in the lower end of described housing (3), be connected with strut (10) in the lower end of each leg (9), be provided with leg-of-mutton base plate (11) in the below of described housing (3), described strut (10) is fixed with the respective corners of base plate (11).

4. biogas scum liquid pollution discharge pump pump case according to claim 3, it is characterized in that: be evenly provided with three journal stirrups (4) in the upper end of described housing (3), described journal stirrup (4) is one with housing (3), has the screw that center line is vertically arranged on journal stirrup (4).

5. biogas scum liquid pollution discharge pump pump case according to claim 4, it is characterized in that: the outside horizontal-extending in position of the corresponding liquid outlet opening of described housing (3) (3a), the drain pipe (2) that forms center line horizontal arrangement, the outer end of described drain pipe (2) is connected with the flange plate (1) vertical with drain pipe (2) center line.