CN219472400U - Integrated impeller device for pumping medium-concentration pulp or high-concentration pulp - Google Patents

Abstract

The utility model relates to the technical field of pumping impellers, and discloses an integrated impeller device for pumping medium-concentration pulp or high-concentration pulp. Compared with the pumping impeller with the split structure in the prior art, the impeller can easily form a smooth overflow surface, and a gap is not formed during assembly of the split structure, so that the pumping efficiency of the pump is improved.

Description

Integrated impeller device for pumping medium-concentration pulp or high-concentration pulp

Technical Field

The utility model relates to the technical field of pumping impellers, in particular to an integrated impeller device for pumping medium-concentration pulp or high-concentration pulp.

Background

Pumps are machines that deliver or pressurize fluids. It transmits mechanical energy of the prime mover or other external energy to the liquid, causing the liquid to increase in energy. The pump is mainly used for conveying water, oil, acid-alkali liquor, emulsion, suspension emulsion, liquid metal and other liquids, and can also be used for conveying liquid and gas mixtures and liquids containing suspended solids. Pumps can be generally classified into three types, positive displacement pumps, power pumps and other types of pumps according to the principle of operation. Besides classification by working principle, classification and naming can also be performed by other methods. For example, the driving method can be divided into an electric pump, a hydraulic pump and the like; the pump can be divided into a single-stage pump and a multi-stage pump according to the structure; the device can be divided into a boiler feed pump, a metering pump and the like according to purposes; the liquid can be classified into a water pump, an oil pump, a slurry pump, and the like according to the property of the liquid to be transported. The linear pump and the conventional pump can be divided according to the shaft structure. The water pump can only convey the material flow taking the fluid as a medium, and can not convey the solid.

In the prior art, as disclosed in chinese patent publication No. CN101910642a, a device for pumping gas-containing suspensions, in particular fibrous material suspensions, is disclosed, which has a fluidization rotor with one or more vanes, a pump rotation wheel and a pressure pipe connection, wherein the fluidization rotor is arranged in a suction pipe connection of the pump and has a hub, wherein the fluidization rotor is hollow at the centre on the inlet end and the vanes interact freely without stiffening or connection. The device is characterized in that the ratio of the free length of the fluidization rotor with respect to the fluidization rotor diameter is between 0% and 75%.

The prior art solutions described above have the following drawbacks: the device is similar to the traditional pumping impeller structure, the pumping impeller of the middle-concentration pulp or high-concentration pulp at present is of a split type structure, the split installation is needed during installation and maintenance, and the inducer and the main impeller often have steps on the overflow surfaces of the impeller blades due to processing errors so as to influence the pumping efficiency of the pump.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide an integrated impeller device for pumping medium-concentration pulp or high-concentration pulp, which consists of one or more integrated blades, an impeller cover plate, a cover plate hub and a back blade, wherein the blades from an inlet end to an outlet end are all of an integrated design, so that the blades can easily form a smooth overflow surface, and the pumping efficiency of a pump is improved.

The above object of the present utility model is achieved by the following technical solutions:

the utility model provides an integral type impeller device of concentrated paper pulp or high-concentration thick liquids in pumping, includes impeller apron, apron wheel hub, back vane and one or more blade, the blade is from the entry end to the exit end with apron wheel hub the impeller apron is integrated with the design.

The present utility model may be further configured in a preferred example to: only one impeller shaft hole extending into the cover plate hub is formed in one side of the impeller cover plate.

The present utility model may be further configured in a preferred example to: the integrated impeller device has no separate front inducer and hub.

The present utility model may be further configured in a preferred example to: the inner wall in impeller shaft hole is provided with the keyway, install the pump shaft in the impeller shaft hole, be provided with on the lateral wall of pump shaft with the spline of keyway matching.

The present utility model may be further configured in a preferred example to: one side of the pump shaft is connected with an impeller bolt in a threaded manner, the impeller bolt is used for fixing the pump shaft in the integrated impeller device, and the head of the impeller bolt is close to the inlet end of the blade.

The present utility model may be further configured in a preferred example to: and a locking gasket is arranged between the impeller bolt and the inlet end of the blade.

The present utility model may be further configured in a preferred example to: the torque transmission of the integrated impeller device is realized by the clamping and matching of key grooves on the upper surfaces of independent impeller shaft holes in the cover plate hubs and key bars on the side walls of the pump shafts.

The present utility model may be further configured in a preferred example to: the blades from the inlet end to the outlet end of the integral impeller device are all integrally designed and cast or machined.

The present utility model may be further configured in a preferred example to: the impeller comprises an impeller cover plate, and is characterized by further comprising a pump shell and a pump cover, wherein the pump shell is detachably fixed on the integrated impeller device, the pump cover is installed on one side of the impeller cover plate, and back blades are arranged between the impeller cover plate and the pump cover.

The present utility model may be further configured in a preferred example to: the integrated impeller device is used for pumping pulp or suspended matter media.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the application discloses integral type impeller device of dense paper pulp or high dense thick liquids in pumping, this integral type impeller device comprises one or more integral type blade, impeller apron, apron wheel hub and back vane, and from the blade of entry end to exit end all as an organic whole design, compare in the pumping impeller of split type structure among the prior art, the blade can form smooth overflow face very easily from this, does not have the gap when split type structure is assembled, has improved the pumping efficiency of pump.

2. The beneficial effects of this application lie in impeller and the fixed impeller bolt of shaft hole be close to the tip of impeller entry, from this more convenient installation and the maintenance of pump equipment.

3. The beneficial effects of this application lie in that the moment of torsion transmission of this impeller only realizes the moment of torsion transmission through the keyway above the independent impeller shaft hole in the apron wheel hub and the cooperation of key strip joint on the lateral wall of pump shaft.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a diagram showing the construction of the assembly of the present utility model with a pump.

Reference numerals: 1. a blade; 2. an impeller cover plate; 3. a cover plate hub; 4. an inlet end; 5. an outlet end; 6. an impeller shaft hole; 7. a pump shaft; 8. a key bar; 9. an impeller bolt; 10. a locking gasket; 11. a back blade; 12. a pump housing; 13. and a pump cover.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is apparent that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the scope of protection of the present application.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Embodiment one:

referring to fig. 1, fig. 1 shows an impeller device with integrated blades and no front hub, and the front blades 1a and the pumping blades 1b are designed with integrated flow surfaces.

As shown in fig. 1, the integral impeller device has no front blade hub, the torque transmission of the impeller device is realized through the hub c of the main impeller cover plate 2, and the torque transmission of the front blades 1 is realized through the cast connection of the integral blades 1.

Referring to fig. 2, an integrated impeller device for pumping medium-concentration pulp or high-concentration pulp according to the present utility model includes an impeller cover plate 2, a cover plate hub 3, a back vane 11, and one or more vanes 1, wherein the vanes 1 are integrally designed with the cover plate hub 3 and the impeller cover plate 2 from an inlet end 4 to an outlet end 5.

Only one side of the impeller cover plate 2 is provided with an impeller shaft hole 6 extending into the cover plate hub 3, and the integrated impeller device has no independent front inducer and hub, so that the assembly process of parts is reduced, and the assembly efficiency is improved.

The inner wall in impeller shaft hole 6 is provided with the keyway, installs pump shaft 7 in the impeller shaft hole 6, is provided with the keybar 8 that matches with the keyway on the lateral wall of pump shaft 7. A locking washer 10 is mounted between the impeller bolt 9 and the inlet end 4 of the vane 1. During installation, only the integral impeller device is required to be installed on the pump shaft 7 with the key strip 8, then the anti-loosening gasket 10 of the impeller is installed, and then the impeller bolt 9 is installed for locking.

One side of the pump shaft 7 is connected with an impeller bolt 9 in a threaded manner, the impeller bolt 9 is used for fixing the pump shaft 7 in the integrated impeller device, and the head of the impeller bolt 9 is close to the inlet end 4 of the blade 1, so that the installation, assembly, overhaul and maintenance of pump equipment are facilitated. The impeller bolt 9 is convenient to install or disassemble, the integral impeller device is extremely simple to assemble and install in application practice, and the maintenance time and cost are greatly saved.

The torque transmission of the integrated impeller device is realized by the clamping and matching of key grooves on the upper surface of an independent impeller shaft hole 6 in the cover plate hub 3 and key strips 8 on the side wall of the pump shaft 7. The blades 1 of the inlet end 4 to the outlet end 5 of the integrated impeller device are all of an integrated design and are cast or machined in one piece.

The impeller further comprises a pump shell 12 and a pump cover 13, wherein the pump shell 12 is detachably fixed on the integrated impeller device, the pump cover 13 is arranged on one side of the impeller cover plate 2, and the back blades 11 are arranged between the impeller cover plate 2 and the pump cover 13. The integrated impeller device is used for pumping pulp or suspended matter medium.

Referring to fig. 2, the assembly sequence of the integrated impeller device is: the key bar 8 is firstly arranged on the pump shaft 7 and then inserted into the impeller shaft hole 6, the anti-loose gasket 10 is clamped at the end part of the integrated impeller device and then locks the impeller bolt 9, so that the integrated impeller device is extremely simple to assemble and install in application practice, and the maintenance time and cost are greatly saved. After the connection and installation of the integrated impeller device and the pump shaft 7 are completed, the assembled impeller is inserted into the pump casing 12. The utility model is also characterized in that the impeller bolt 9 is positioned at the end part of the impeller, thereby greatly facilitating the assembly, the overhaul and the maintenance of the pump equipment.

The implementation principle of the embodiment is as follows: the application discloses integral type impeller device of dense paper pulp or high dense slurry in pumping, this integral type impeller device comprises one or more integral type blade 1, impeller apron 2, apron wheel hub 3 and back vane 11, and from the inlet end 4 to the pump impeller of split type structure in prior art is all as an organic whole design, from this blade 1 can form smooth overflow surface very easily, does not have the gap when split type structure is assembled, has improved the pumping efficiency of pump.

The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (10)

1. An integrated impeller device for pumping medium-consistency pulp or high-consistency pulp, comprising an impeller cover plate (2), a cover plate hub (3), back blades (11) and one or more blades (1), and being characterized in that: the blades (1) are integrally designed from an inlet end (4) to an outlet end (5), the cover plate hub (3) and the impeller cover plate (2).

2. An integrated impeller device for pumping medium or high consistency pulp according to claim 1, characterized in that only one impeller shaft hole (6) extending into the shroud hub (3) is provided on one side of the impeller shroud (2).

3. An integrated impeller device for pumping medium or high consistency pulp as recited in claim 1, wherein the integrated impeller device is devoid of separate front inducer and hub.

4. The integrated impeller device for pumping medium-consistency pulp or high-consistency pulp according to claim 2, wherein a key groove is arranged on the inner wall of the impeller shaft hole (6), a pump shaft (7) is arranged in the impeller shaft hole (6), and key bars (8) matched with the key groove are arranged on the side wall of the pump shaft (7).

5. An integrated impeller device for pumping medium or high consistency pulp according to claim 4, characterized in that an impeller bolt (9) is screwed to one side of the pump shaft (7), the impeller bolt (9) being used for fixing the pump shaft (7) in the integrated impeller device, the head of the impeller bolt (9) being close to the inlet end (4) of the blade (1).

6. An integrated impeller device for pumping medium or high consistency pulp according to claim 5, characterized in that a locking washer (10) is mounted between the impeller bolt (9) and the inlet end (4) of the blade (1).

7. The integrated impeller device for pumping medium-consistency pulp or high-consistency pulp according to claim 4, wherein torque transmission of the integrated impeller device is realized by clamping and matching a key groove on an independent impeller shaft hole (6) in a cover plate hub (3) with a key strip (8) on the side wall of the pump shaft (7).

8. An integrated impeller device for pumping medium or high consistency pulp according to claim 1, characterized in that the blades (1) of the integrated impeller device from the inlet end (4) to the outlet end (5) are all of one piece design and are cast or machined in one piece.

9. An integrated impeller device for pumping medium or high consistency pulp according to claim 1, further comprising a pump housing (12) and a pump cover (13), said pump housing (12) being detachably fastened to said integrated impeller device, said pump cover (13) being mounted on one side of said impeller cover plate (2), said back vane (11) being arranged between said impeller cover plate (2) and said pump cover (13).

10. An integrated impeller device for pumping medium or high consistency pulp as claimed in claim 1, wherein the integrated impeller device is used for pumping pulp or suspended matter media.