CN217301057U

CN217301057U - Stable operation assembly of multistage pump and medium conveying equipment

Info

Publication number: CN217301057U
Application number: CN202221384962.8U
Authority: CN
Inventors: 龙钰; 沈春丽; 唐友权
Original assignee: Limin Pharmaceutical Factory of Livzon Pharmaceutical Group
Current assignee: Limin Pharmaceutical Factory of Livzon Pharmaceutical Group
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-08-26
Anticipated expiration: 2032-06-02

Abstract

The utility model provides a multistage pump steady operation subassembly and medium conveying equipment relates to medium conveying equipment field. This multistage pump steady operation subassembly includes multistage pump, filter and at least one flow equalizing plate, and the filter communicates with the inlet end of multistage pump, and the flow equalizing plate sets up between filter and multistage pump, sets up a plurality of flow equalizing holes that supply the medium to pass through on the flow equalizing plate. The utility model discloses an inlet end at the multistage pump sets up the filter, can effectively filter the foreign matter in the medium that gets into the multistage pump, the medium of guaranteeing to get into the multistage pump is the nothing foreign matter, and simultaneously, the flow equalizing plate can also slow down the water hammer effect that produces at the water impact in-process and cause injury or secondary damage to the pump body of multistage pump, the setting in the hole of flow equalizing plate can make the medium more even more stable be full of the multistage pump, and does not produce the air, guarantee the stability of multistage pump greatly. The medium conveying equipment with the multistage pump stable operation assembly is stable in overall operation and long in service life.

Description

Stable operation assembly of multistage pump and medium conveying equipment

Technical Field

The utility model relates to a medium conveying equipment field particularly, relates to a multistage pump steady operation subassembly and medium conveying equipment.

Background

The multistage pump has the advantages that the multistage pump is simple and compact in structure, small in occupied area for the same conveying amount, light in weight, low in material consumption, free of the requirement of a basic reciprocating pump, high in height, and low in manufacturing and installation cost. The motor can run at high speed, can adopt a 2-pole or 4-pole motor direct connection, and has a simple transmission structure and easy installation. The multi-stage pump has no valve, so it is suitable for conveying suspension, and the special design can also be used for conveying bulk solid suspension, and the pump can be made of chemical corrosion-resistant material, and is suitable for conveying corrosive solution. The structure is simple, the number of parts is small, the number of faults is small, the structure is durable, the maintenance cost is low, the management is convenient, and the work is reliable. The output quantity can be adjusted at will or even closed completely by the discharge valve, and the danger of the infinite rise of the pressure head can not occur. Centrifugal pumps are most suitable for large volumes of liquid to be delivered, but not for large head pressures. The liquid discharge is uniform and has no pulse phenomenon.

Because of its many advantages, the multistage pump is widely used in many industrial sectors such as petroleum, chemical industry, machinery, mines, light industry, medicine and food. In many processes of industrial production, such as vacuum filtration, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum moisture regaining, vacuum degassing and the like, multistage pumps are widely used.

At present, a multistage pump is also commonly used in the use of cooling circulating water in a traditional Chinese medicine extraction workshop, but as many enterprises do not make much consideration on the requirement of cooling water, the multistage pump is often stuck or even burnt due to the problem of water quality.

In view of this, the utility model is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multistage pump steady operation subassembly, its medium that can guarantee to get into the multistage pump does not have the foreign matter, and the air-free has effectively avoided the water hammer can not cause injury or secondary damage to the pump body of multistage pump simultaneously, has effectively promoted the stability of multistage pump.

Another object of the utility model is to provide a medium conveying equipment, its whole operation is stable, long service life.

The embodiment of the utility model is realized like this:

in a first aspect, the present invention provides a stable operation assembly for a multi-stage pump, which comprises a multi-stage pump, a filter and at least one flow equalizing plate, wherein the filter is communicated with an inlet of the multi-stage pump, the flow equalizing plate is arranged between the filter and the multi-stage pump, and a plurality of flow equalizing holes for passing a medium are arranged on the flow equalizing plate.

In alternative embodiments, the shape of the flow equalizing hole is circular, elliptical, semicircular, triangular or polygonal.

In an alternative embodiment, the flow equalizing hole is a circular hole with a diameter of 2-4 cm.

In an alternative embodiment, the number of flow equalizing holes is 3-8.

In an alternative embodiment, the plurality of flow equalizing holes are evenly distributed near the edge of the flow equalizing plate.

In an alternative embodiment, the material of the flow equalizing plate is stainless steel.

In an alternative embodiment, the filter is a Y-type one-way filter.

In an alternative embodiment, the filter is provided with a first flange, the multistage pump is provided with a second flange, the first flange and the second flange are connected, and the flow equalizing plate is arranged between the first flange and the second flange.

In an optional embodiment, the multistage pump stable operation assembly further includes a connecting pipe, the connecting pipe is disposed between the filter and the multistage pump, the connecting pipe is provided with a third flange and a fourth flange, the third flange is connected with the first flange, the fourth flange is connected with the second flange, and at least one of the first flange and the third flange and the second flange and the fourth flange is provided with the flow equalizing plate.

In a second aspect, the present invention provides a media delivery device comprising a multi-stage pump steady operation assembly as described in any of the previous embodiments.

The embodiment of the utility model provides a beneficial effect is:

the utility model provides a multistage pump steady operation subassembly sets up the filter through the inlet end at the multistage pump, and the filter can be effectively to getting into foreign matters such as iron rust in the medium of multistage pump, grains of sand, a small amount of solid particle in the liquid and filter, and the medium of guaranteeing to get into the multistage pump is the nothing foreign matter, simultaneously, the utility model discloses the flow equalizing plate that sets up can also slow down the water hammer that produces in the water impact process and imitate the pump body of multistage pump and cause injury or secondary damage, and the setting in the hole of flow equalizing plate simultaneously can make the more even more stable multistage pump that is full of medium, and does not produce the air, guarantees the stability of multistage pump greatly. The medium conveying equipment with the multi-stage pump stable operation assembly is stable in overall operation, and the service life of the medium conveying equipment is greatly prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a stable operation assembly of a multi-stage pump, which is provided by an embodiment of the present invention, wherein the number of flow equalizing plates is 1, and the flow equalizing plates are arranged between a first flange and a second flange;

fig. 2 is a schematic structural view of a stable operation assembly of a multi-stage pump, which is provided by an embodiment of the present invention, wherein the number of flow equalizing plates is 1, and the flow equalizing plates are arranged between a first flange and a third flange;

fig. 3 is a schematic structural view of 2 flow equalizing plates of the stable operation assembly of the multi-stage pump according to the embodiment of the present invention;

fig. 4 is a schematic structural view of a flow equalizing plate of the stable operation assembly of the multi-stage pump according to an embodiment of the present invention.

Icon: 100-a multi-stage pump stable operation component; 110-a multi-stage pump; 111-a second flange; 120-a filter; 121-a first flange; 130-flow equalizing plate; 131-flow equalizing holes; 140-a connecting tube; 141-a third flange; 142-fourth flange.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The terms "first," "second," "third," and the like are used solely to distinguish one from another as to indicate or imply relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1 to 4, the present embodiment provides a stable operation assembly 100 for a multi-stage pump, which includes a multi-stage pump 110, a filter 120, a flow equalizing plate 130 and a connecting pipe 140, wherein the filter 120 is communicated with an inlet end of the multi-stage pump 110, and the flow equalizing plate 130 is disposed between the filter 120 and the multi-stage pump 110.

The utility model discloses in, multistage pump 110 is conventional multistage pump 110 promptly, the utility model discloses do not improve multistage pump 110's structure, the utility model discloses mainly set up filter 120 and flow equalizing plate 130 at multistage pump 110's entrance point. The filter 120 can filter a medium (including but not limited to liquid) entering the multistage pump 110, so as to effectively ensure that the medium entering the multistage pump 110 is free of foreign matters, which is beneficial to ensuring normal and stable operation of the multistage pump 110.

The utility model discloses in, filter 120 is Y type one-way filter, and Y type one-way filter simple structure, and its effect is the mechanical impurity in the filter medium, can filter the multistage pump 110 in order to protect on the equipment pipeline and avoid wearing and tearing and jam to rust in the sewage, grains of sand, a small amount of solid particles etc. in the liquid, and then can protect the normal work of multistage pump 110. When the medium enters the filter cylinder with a filter screen with a certain specification, impurities are blocked, clean filtrate is discharged from the outlet of the filter, and when the filter cylinder needs to be cleaned, the detachable filter cylinder is taken out and is installed again after treatment. The filter 120 of the present invention is very convenient to use and maintain.

However, the filter 120 is currently installed at the inlet end of the multistage pump 110, and although the problem of foreign materials in the medium entering the multistage pump 110 can be solved, the present invention has found that after the filter 120 is added, air may be generated in the medium, thereby damaging the multistage pump 110 or reducing the stability of the multistage pump 110.

For this reason, in the present invention, a flow equalizing plate 130 is further provided between the filter 120 and the multistage pump 110. The number of the flow equalizing plates 130 can be one or more, and the number of the flow equalizing plates 130 is determined according to the amount of water consumption. When the water consumption is less, only one flow equalizing plate 130 can be arranged, and when the water consumption is greater, a plurality of flow equalizing plates are arranged, so that a better flow equalizing effect is achieved.

Specifically, referring to fig. 1, in the present invention, the filter 120 is provided with a first flange 121, the multistage pump 110 is provided with a second flange 111, and the first flange 121 and the second flange 111 are connected, so as to install the filter 120 at the inlet end of the multistage pump 110. The utility model discloses in, flow equalizing plate 130 is roughly platelike, and its size slightly is less than the size of first flange 121 and second flange 111, the utility model discloses a flow equalizing plate 130 sets up between first flange 121 and second flange 111, can make the medium after filtering from filter 120 in advance through flow equalizing plate 130, the medium receives the effect that blocks of flow equalizing plate 130 this moment, produces the backward flow, be favorable to eliminating the air in this part medium, the medium after flow equalizing plate 130 flow equalizes gets into multistage pump 110, can not exist and mix with a large amount of air and lead to the condition of multistage pump 110 damage or stability reduction to take place in the medium.

Furthermore, the utility model discloses in can also set up connecting pipe 140 between multistage pump 110 and filter 120, the both ends of connecting pipe 140 are connected with multistage pump 110 and filter 120 through the flange respectively, and particularly, connecting pipe 140 is provided with third flange 141 and fourth flange 142, and third flange 141 is connected with first flange 121, and fourth flange 142 is connected with second flange 111. When the flow equalizing plate 130 of the present invention is only one, it can be disposed between the third flange 141 and the first flange 121 (as shown in fig. 2), or between the fourth flange 142 and the second flange 111. When the number of the flow equalizing plates 130 in the present invention is 2, as shown in fig. 3, one of the flow equalizing plates 130 is disposed between the third flange 141 and the first flange 121, and the other flow equalizing plate 130 is disposed between the fourth flange 142 and the second flange 111. It should be understood that, when the number of the flow equalizing plates 130 needs to be further increased, the number of the connecting pipes 140 can also be correspondingly increased, and therefore, the number of the connecting pipes 140 is not limited in this embodiment. The utility model discloses in, the material of flow equalizing plate 130 is the stainless steel, and the stainless steel is weak corrosion medium such as resistant air, steam, water or has stainless steel grade. The flow equalizing plate 130 made of stainless steel material can ensure that the flow equalizing plate 130 is not corroded by media in the long-term operation process, and the service life of the flow equalizing plate 130 and the stability of the multi-stage pump 110 are prolonged.

Referring to fig. 4, in the present invention, a plurality of flow equalizing holes 131 for media to pass through are formed on the flow equalizing plate 130. The shape of the flow equalizing hole 131 is not limited, and may be, for example, a circle, an ellipse, a semicircle, a triangle, or a polygon, as long as the flow equalizing hole 131 can realize the medium passage. In the present embodiment, which is a typical but non-limiting example, the flow equalizing holes 131 are circular holes with a diameter of 2-4 cm. The number of the equalizing holes 131 can be set according to actual conditions, and particularly in the embodiment, the number of the equalizing holes 131 is 3-8. Further, the utility model provides a hole 131 that flow equalizes is close to the edge evenly distributed who flow equalizes board 130. Because the medium that discharges from filter 120 tends to the middle part of striking at flow equalizing plate 130, the utility model discloses well flow equalizing plate 130's middle part is not established the hole 131 that flow equalizes, can make and fully receive the blockking of flow equalizing plate 130 from filter 120's discharged medium, at this moment, from filter 120's discharged medium in impact process, the water hammer effect of production is effectively slowed down through blocking of flow equalizing plate 130, at this moment, the medium is more stable gentler when discharging from the flow equalizing hole 131 that sets up on flow equalizing plate 130's the edge, effectively avoided the water hammer effect to cause injury or secondary damage to multistage pump 110's the pump body, can make the medium more even more stable be full of multistage pump 110 simultaneously, and do not produce the air, guarantee multistage pump 110's stability greatly. The operating principle of the multi-stage pump stable operation assembly 100 is as follows: because of the nature of the multi-stage pump 110: before operation, the pump body must be filled with liquid. The utility model discloses a set up filter 120 at the entrance point of multistage pump 110, filter 120 can effectively filter the medium that gets into multistage pump 110, guarantee that the medium that gets into multistage pump 110 is free of foreign matter, simultaneously, in the utility model, set up flow equalizing plate 130 between filter 120 and multistage pump 110, set up a plurality of flow equalizing holes 131 on flow equalizing plate 130, before circulating medium gets into the pump body of multistage pump 110, the medium after filter 120 filters can receive the resistance of flow equalizing plate 130 earlier, produces the backward flow, the air that entrains in the medium can be overflowed to the resistance of flow equalizing plate 130 and the impact of backward flow, because in the water impact process, can produce great water hammer effect, the utility model discloses in flow equalizing plate 130's setting can also make the water hammer can not cause injury or secondary injury to the pump body of multistage pump 110, the setting of flow equalizing hole 131 on flow equalizing plate 130 can make the medium more even fill up multistage pump 110 simultaneously, without generating air, the stability of the multistage pump 110 is greatly ensured.

In addition, this embodiment still provides a medium conveying equipment, and it includes above-mentioned multistage pump steady operation subassembly 100, has the medium conveying equipment of above-mentioned multistage pump steady operation subassembly 100, and the whole operation is stable, very big extension medium conveying equipment's life.

To sum up, the utility model provides a multistage pump steady operation subassembly 100 sets up filter 120 through the entrance point at multistage pump 110, and filter 120 can be effectively to getting into foreign matters such as iron rust in the medium of multistage pump 110, grains of sand, a small amount of solid particle in the liquid and filter, guarantees that the medium that gets into multistage pump 110 is the nothing foreign matter, simultaneously, the utility model discloses the flow equalizing plate 130 that sets up can also slow down the water hammer that produces at the water impact in-process and imitates the pump body that causes injury or secondary damage to multistage pump 110, and the setting of the hole 131 that flow equalizes on the flow equalizing plate 130 simultaneously can make the medium more even more stable be full of multistage pump 110, and does not produce the air, guarantees the stability of multistage pump 110 greatly. The medium conveying equipment with the stable operation assembly 100 for the multistage pump has stable integral operation, and the service life of the medium conveying equipment is greatly prolonged.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a multistage pump steady operation subassembly, its characterized in that, it includes multistage pump, filter and at least one flow equalizing plate, the filter with the inlet end intercommunication of multistage pump, flow equalizing plate set up in the filter with between the multistage pump, flow equalizing plate is last to be seted up a plurality of flow equalizing holes that supply the medium to pass through.

2. The multi-stage pump steady operation assembly of claim 1, wherein the shape of the flow equalizing hole is circular, elliptical, semi-circular, triangular, or polygonal.

3. The multi-stage pump steady operation assembly of claim 2, wherein the flow equalization hole is a circular hole having a diameter of 2-4 cm.

4. The multi-stage pump steady operation assembly of claim 1, wherein the number of flow equalization holes is 3-8.

5. The multi-stage pump steady operation assembly of claim 1, wherein the plurality of flow equalizing holes are evenly distributed proximate to an edge of the flow equalizing plate.

6. The multi-stage pump steady operation assembly of claim 1, wherein the flow equalization plate is made of stainless steel.

7. The multi-stage pump steady operation assembly of claim 1, wherein the filter is a Y-type one-way filter.

8. The multi-stage pump steady operation assembly of any one of claims 1-7, wherein the filter is provided with a first flange, the multi-stage pump is provided with a second flange, the first flange and the second flange are connected, and the flow equalizing plate is disposed between the first flange and the second flange.

9. The multiple stage pump steady operation assembly of claim 8, further comprising a connecting tube disposed between the filter and the multiple stage pump, the connecting tube being provided with a third flange and a fourth flange, the third flange being connected to the first flange, the fourth flange being connected to the second flange, and at least one of the first flange and the third flange and the second flange and the fourth flange being provided with the flow equalizing plate.

10. A media transport apparatus comprising a multi-stage pump steady operation assembly as claimed in any one of claims 1 to 9.