Flow guide shell of multi-stage pump

Abstract

The utility model belongs to the technical field of multi-stage pumps, and particularly relates to a multi-stage pump flow guide shell which comprises a device body, a shell, a pump core hole formed in the middle of the top of the shell, a convex wall arranged on the edge of the pump core hole, a diffuser mounting groove formed in the top of the shell and flow guide blades arranged on the inner side wall of the shell. The sound insulation assembly comprises a sound insulation sleeve arranged on the outer wall of the shell and honeycomb holes formed in the sound insulation sleeve; the device is reasonable in structure, liquid can be conveniently guided in the using process, deformation is prevented, the service life of the device is prolonged, meanwhile, the functions of sound insulation and noise reduction are achieved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-stage pumps, in particular to a multi-stage pump flow guide casing. Background Art

[0002] A multi-stage pump is a centrifugal pump whose inlet and outlet sections and middle section are combined together by a tie rod. Its output water pressure can be very high, and it relies on the change of the pump chamber volume to achieve suction, compression and exhaust. In the guide casing of the multi-stage pump, the guide casing is annular in structure and a pump core hole is set in the center.

[0003] The guide casing of the multi-stage pump in the prior art is difficult to guide the liquid flow direction because the internal liquid is quickly dispersed, pressurized and flows under the action of centrifugal force; the pump core hole is penetrated by the drive shaft, and it is difficult to ensure the stability after pressurization, and it is easy to deform; at the same time, the sound insulation and noise reduction performance is poor, and a large noise will be generated during operation. For this reason, we propose a new type of multi-stage pump guide casing. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a multi-stage pump guide housing, which can facilitate the diversion of liquid and prevent deformation during use, thereby extending the service life of the equipment. At the same time, it also has the function of sound insulation and noise reduction, and is highly practical.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A multi-stage pump flow guide housing, comprising:

[0009] The device body comprises a housing, a pump core hole arranged in the middle of the top of the housing, a convex wall arranged at the edge of the pump core hole, a diffuser mounting groove arranged at the top of the housing, and a guide vane arranged on the inner side wall of the housing;

[0010] The sound insulation component comprises a sound insulation sleeve arranged on the outer wall of the shell and honeycomb holes arranged inside the sound insulation sleeve.

[0011] As a preferred solution of the multi-stage pump flow guide housing described in the utility model, wherein: ears are provided on both sides of the housing.

[0012] As a preferred solution of the multi-stage pump flow guide housing described in the utility model, a positioning pin is provided at the bottom of the housing.

[0013] As a preferred solution of the multi-stage pump guide housing described in the utility model, wherein: reinforcing ribs are arranged inside the convex wall, and the material of the reinforcing ribs is selected from high-strength alloy.

[0014] As a preferred solution of the guide housing of a multi-stage pump described in the utility model, the guide vanes are of a spiral structure, and the spiral direction of the guide vanes is the same as the rotation direction of the impeller inside the multi-stage pump.

[0015] As a preferred solution of the multi-stage pump guide housing described in the utility model, the interior of the honeycomb holes is filled with sound-absorbing cotton strips.

[0016] As a preferred solution of the multi-stage pump flow guide housing described in the utility model, through holes matching with the ears are provided on both sides of the sound insulation sleeve.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. By providing a convex wall on the edge of the pump core hole, water can be diverted to concentrate the water passing through the pump core hole, and the overall structural strength can be improved, so that the pump core hole will not be deformed, and the service life of the equipment is extended; by providing a guide vane on the inner wall of the shell, the liquid flow direction is assisted, and the diversion function is further realized;

[0019] 2. In addition, by arranging a sound insulation sleeve on the outer wall of the shell and arranging honeycomb holes inside the sound insulation sleeve, the sound insulation and noise reduction performance of the device is improved, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the device of the utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the housing of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the sound insulation component of the utility model.

[0025] In the figure; 100 device body, 110 housing, 120 pump core hole, 130 convex wall, 140 reinforcing ribs, 150 diffuser mounting grooves, 160 guide vanes, 170 ears, 180 positioning pins, 200 sound insulation components, 210 sound insulation sleeves, 220 honeycomb holes, and 230 through holes. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] The utility model provides the following technical solutions: a multi-stage pump guide housing, which is convenient for guiding liquid during use, prevents deformation, and prolongs the service life of the equipment. It also has the function of sound insulation and noise reduction, and is highly practical;

[0031] Figures 1 to 3 The structure diagram of an embodiment of a multi-stage pump guide housing of the utility model is shown, and the main part thereof includes a device body 100 and a sound insulation component 200;

[0032] The device body 100 includes a housing 110, a pump core hole 120 opened in the middle of the top of the housing 110, a convex wall 130 installed at the edge of the pump core hole 120, a diffuser installation groove 150 installed at the top of the housing 110, and a guide vane 160 installed on the inner side wall of the housing 110. Ears 170 are installed on both sides of the housing 110, a positioning pin 180 is installed at the bottom of the housing 110, and a reinforcing rib 140 is installed inside the convex wall 130. The material of the reinforcing rib 140 is selected from high-strength alloy. The guide vane 160 is The spiral structure, and the spiral direction of the guide vane 160 is the same as the rotation direction of the impeller inside the multistage pump. Furthermore, the housing 110 is used for diversion, the pump core hole 120 is used for the pump core to pass through, the convex wall 130 is used to divert water to concentrate the water passing through the pump core hole 120, the reinforcing rib 140 is used to improve the structural strength of the convex wall 130, the diffuser mounting groove 150 is used to install the diffuser, the guide vane 160 is used to assist the liquid flow direction to achieve the diversion function, and the ear 170 and the positioning pin 180 are used to install the housing 110;

[0033] The sound insulation component 200 includes a sound insulation sleeve 210 installed on the outer wall of the shell 110 and a honeycomb hole 220 opened inside the sound insulation sleeve 210. The interior of the honeycomb hole 220 is filled with sound-absorbing cotton strips. Through holes 230 cooperating with the ear 170 are opened on both sides of the sound insulation sleeve 210. Furthermore, the sound insulation sleeve 210 is used to improve the sound insulation and noise reduction performance of the device, and the honeycomb hole 220 is used to improve the sound insulation performance.

[0034] Combination Figure 1-Figure 3 The present embodiment is a multi-stage pump guide housing, and the specific principle is as follows: by arranging a convex wall 130 on the edge of the pump core hole 120, water can be guided to concentrate the water passing through the pump core hole 120, and the overall structural strength can be improved, so that the pump core hole 120 will not be deformed, thereby extending the service life of the equipment; by arranging a guide blade 160 on the inner wall of the outer shell 110, the flow direction of the liquid is assisted to further realize the guide function; in addition, by arranging a sound insulation sleeve 210 on the outer wall of the outer shell 110 and arranging a honeycomb hole 220 inside the sound insulation sleeve 210, the sound insulation and noise reduction performance of the device is improved, and the practicability is strong.

[0035] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A multi-stage pump guide housing, characterized in that: include: The device body (100) comprises a housing (110), a pump core hole (120) arranged in the middle of the top of the housing (110), a convex wall (130) arranged at the edge of the pump core hole (120), a diffuser installation groove (150) arranged at the top of the housing (110), and a guide vane (160) arranged on the inner side wall of the housing (110); The sound insulation component (200) comprises a sound insulation sleeve (210) arranged on the outer wall of the housing (110) and honeycomb holes (220) arranged inside the sound insulation sleeve (210).

2. A multi-stage pump guide housing according to claim 1, characterized in that: Latch ears (170) are provided on both sides of the housing (110).

3. A multi-stage pump guide housing according to claim 1, characterized in that: A positioning pin (180) is provided at the bottom of the housing (110).

4. A multi-stage pump guide housing according to claim 1, characterized in that: A reinforcing rib (140) is arranged inside the convex wall (130), and the material of the reinforcing rib (140) is a high-strength alloy.

5. The multi-stage pump guide housing according to claim 1, characterized in that: The guide vane (160) has a spiral structure, and the spiral direction of the guide vane (160) is the same as the rotation direction of the impeller inside the multi-stage pump.

6. A multi-stage pump guide housing according to claim 1, characterized in that: The interior of the honeycomb holes (220) is filled with sound-absorbing cotton strips.

7. A multi-stage pump guide housing according to claim 2, characterized in that: Through holes (230) matching with the ears (170) are arranged on both sides of the sound insulation sleeve (210).

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