CN2381813Y

CN2381813Y - Body of roller style rotor pump

Info

Publication number: CN2381813Y
Application number: CN 99216298
Authority: CN
Inventors: 聂如国
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-13
Filing date: 1999-07-13
Publication date: 2000-06-07
Anticipated expiration: 2009-07-13

Abstract

The utility model relates to a pump body of a roller type rotor pump, which is a key component of the roller type rotor pump. The utility model can be used for conveying medium with high corrosiveness and high viscosity in chemical industry, food industry, medicinal industry, petroleum industry, liquefying gas, etc. The utility model is composed of a housing body and a stator which are integrated into one unit by a key connection, wherein, the inner chamber holes of the pump body are composed of circular arc sections which are connected together, and the radiuses of the inner chamber holes are R 1, R 2, R 3, R 4, wherein, the radius of R 1 circular arc section is the same as the radius R of a rotor matched with a pump body, the radius of R 1 circular arc section and the radius R of a rotor matched with a pump body are concentric and the central angle alpha is equal to 20 to 80 DEG. The radius of R 2 circular arc section is smaller or equal to R 1 plus to d/2, the d is the diameter of a roller on a rotor matched with the pump body, and the central angle alpha 1 is equal to 180 to 200 DEG; the circular arc sections R 3 an R 4 is a transitional circular arc section between the R 1 and the R 2. The utility model enhances the output pressure and the flow rate of pumps.

Description

The pump housing of roller type rotor pump

The utility model relates to a kind of critical component of roller type rotor pump, particularly can be widely used in the industries such as chemical industry, food, medicine, oil, liquid gas, especially be suitable for the pump housing that the roller type rotor pump of highly corrosive, high viscosity medium conveying is arranged to various.

The CN87209851 patent also provides a kind of " roller pump ", but because of its flow, pressure size instability influence use, and noise is big.

The purpose of this utility model is to provide a kind of pump housing of roller type rotor pump, with the rotor cooperating of band roller, can improve the delivery pressure and the flow of pump, and can smooth working.

The utility model is achieved in that the pump housing of roller type rotor pump connects into whole the composition by housing and stator with key, and the lumen orifice of the described pump housing is R by radius ₁, R ₂, R ₃, R ₄Arc section connect to form R ₁The arc section radius is with identical and concentric with the rotor radius R that cooperates of the pump housing, its central angle alpha=20～80 °, R ₂The arc section radius, R ₂≤ R ₁+ d/2, d be with the supporting rotor of the pump housing on the diameter of roller, central angle alpha ₁=180～200 °, R ₃, R ₄Arc section is R ₁With R ₂Between the transition circle segmental arc.

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

Fig. 2. alternative plan structural representation of the present utility model.

Fig. 3. the A-A view (not drawing housing parts) of Fig. 2.

Fig. 4. the P of Fig. 2 is to view.

Fig. 5. the B-B view of Fig. 4.

Fig. 6. user mode figure of the present utility model.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:

R is and the radius of supporting band roller (8) rotor (9) of the pump housing that d is the diameter of roller (8), R ₁, R ₂, R ₃, R ₄Be respectively the radius of the different arc sections of pump housing inner chamber.

There is supporting foot housing (1) lower end, and there are mutual vertically have liquid inlet and outlet (5), (6) adpting flange, circular in the upper end.

Housing (1) ' there is supporting foot the lower end, upper end have on same straight line, have liquid inlet and outlet (5), (6) adpting flange, circular '.

Stator (3) is a cylindrical shape, and respectively there is a square through hole at bilateral symmetry place in upper end and cooperates with housing (1) ' go up circular liquid inlet and outlet (5), (6) ', as shown in Figure 3.

The pump housing is by housing (1), (1) ' and stator (3) connect into whole the composition as shown in Figure 1, 2 with key (4).Also can be with housing, the stator system all-in-one-piece pump housing.

The lumen orifice of the pump housing is by R ₁, R ₂, R ₃, R ₄4 arc section slynesses connect to form, and make R ₁The central angle alpha of arc section=20～80 °, R ₁Radius of arc identical with R and concentric, constitute the sealing strip between liquid inlet and outlet (5), (6), (6) ' two end.R ₂The central angle alpha of arc section ₁=180～200 °, radius of arc R ₂≤ R ₁+ d/2, and constitute medium and transmit passage, R with rotor (9) is concentric ₃, R ₄Arc section is R ₁, R ₂Between transition arc and R ₃=R ₄

Stator (3) and housing (1), (1) ' below of cooperation place is the sluice way (7) of arc transition, radius of arc R ₅=R ₆, R ₅=(0.1-0.6) R ₁, R ₅With R ₆Also can be unequal.

' liquid inlet and outlet (5), (6) ' is on same straight line because of housing (1), noise is big herein, for increasing liquid outlet pressure and reducing noise, with prior art housing (1) ' width, the degree of depth of the logical liquid bath (2) of top inner surface all strengthen, width a is liquid outlet (6) ' 1-2 of diameter is doubly, degree of depth h is 1-20mm, by deeply to shallow, from inside to outside rounding off is up to zero, shown in Fig. 2,4,5.

The rotor (9) that now has roller (8) is put into the lumen orifice of the pump housing, connects, is assembled into the roller type rotor pump as shown in Figure 6.Connect with the mains, rotor (9) rotates and enters medium from liquid entering hole (5), and the roller (8) on the rotor (9) is close to the motion of pump housing inner chamber hole wall all the time under pressure medium and action of centrifugal force simultaneously, realizes suction, row's work of pump.

The utility model is compared with prior art: because R is arranged₁Circular arc identical with rotor radius R, make rotor tight Paste pump housing internal chamber wall, thereby separate liquid inlet and outlet, keep the stable of liquid outlet rate-of flow and pressure. By R₂The Transfer pipe that consists of makes the roller working space all the time constant, thereby has kept flow, pressure size not Become, thereby the energy steady operation, and noise is low. Owing to adopt the way of deepening, widening logical liquid bath, use again The medium of liquid mouth position enters the other feed liquor of rotor roller slot from behind by the deep trouth position at logical liquid bath rear Groove is close to the motion of pump housing inner chamber hole wall because the effect of pressure medium, centrifugal force makes roller all the time, thereby is improved Output pressure and the flow of pump.

Claims

1. the pump housing of a roller type rotor pump connects into whole the composition by housing and stator (3) with key (4), it is characterized in that the lumen orifice of the described pump housing is R by radius ₁, R ₂, R ₃, R ₄Arc section connect to form R ₁The arc section radius is with identical and concentric with the rotor radius R that cooperates of the pump housing, its central angle alpha=20～80 °, R ₂The arc section radius, R ₂≤ R ₁+ d/2, d are the diameter of going up roller (8) with the supporting rotor of the pump housing (9), central angle alpha ₁=180～200 °, R ₃, R ₄Arc section is R ₁With R ₂Between the transition circle segmental arc.

2. the pump housing according to claim 1 is characterized in that there is supporting foot housing (1) lower end, and there are mutual vertically have liquid inlet and outlet (5), (6) adpting flange, circular in the upper end; Housing (1) ' there is supporting foot the lower end, upper end have on same straight line, have liquid inlet and outlet (5), (6) adpting flange, circular '; Stator (3) and housing (1), (1) ' below of cooperation place is the sluice way (7) of arc transition, radius of arc R ₅=R ₆, R ₅=(0.1-0.6) R ₁, R ₅With R ₆Also can be unequal.

3. the 1-2 of the pump housing according to claim 1 is characterized in that housing (1) the logical liquid bath (2) of the top inner surface ', its width is liquid outlet (6) ' diameter doubly, the degree of depth is 1-20mm, from deeply to shallow, from inside to outside rounding off is up to zero.