CN214092461U

CN214092461U - Pump body heat preservation structure of multistage centrifugal pump

Info

Publication number: CN214092461U
Application number: CN202022822125.6U
Authority: CN
Inventors: 杨春涛
Original assignee: Zhejiang Watson Pump Valve Technology Group Co ltd
Current assignee: Zhejiang Watson Pump Valve Technology Group Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-08-31
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a multistage centrifugal pump's pump body insulation construction, the front end surface of insulation construction main part is provided with the import flange, the upper end surface of insulation construction main part is provided with the outlet flange, the outer wall cover of insulation construction main part has the heat preservation shell, one side surface connection of connector has the motor, one side surface cover of motor has the bearing protection shell, the bearing protection shell includes protecting wall and nested screw thread, the lower extreme surface mounting of motor has the base. A multistage centrifugal pump's pump body insulation construction, through the bearing protection shell that sets up for the protection motor rotor avoids motor rotor to receive the weather condition to influence and takes place rotatory skew, through the heat preservation shell that sets up, is used for protecting the centrifugal pump body, makes the centrifugal pump be in constant temperature environment during the operation, guarantees the steady operation of centrifugal pump, improves the life of centrifugal pump, brings fine use prospect.

Description

Pump body heat preservation structure of multistage centrifugal pump

Technical Field

The utility model relates to a delivery pump technical field specifically is a multistage centrifugal pump's pump body insulation construction.

Background

The centrifugal pump is characterized in that the air sucked into the pipeline is fully mixed with water and discharged to a steam-water separation chamber, the air at the upper part of the steam-water separation chamber is discharged, the liquid at the lower part returns to the impeller again and is mixed with the gas sucked into the pipeline, and the air is continuously circulated to completely discharge the gas in the pump and the suction cavity.

When the existing multistage centrifugal pump is installed and used, when the existing multistage centrifugal pump is used in a place with large temperature change, the pump shaft rod is prone to shifting or damaging the structure of the pump body, the service life is shortened, the use of the centrifugal pump is affected, certain adverse effects are brought to the use process of people, and therefore the pump body heat insulation structure of the multistage centrifugal pump is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a multistage centrifugal pump's pump body insulation construction, possess dismouting of being convenient for, simple structure and practicality advantage such as strong, can effectively solve the problem in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a multistage centrifugal pump's pump body insulation construction, the front end surface of insulation construction main part is provided with the import flange, the upper end surface of insulation construction main part is provided with the export flange, the outer wall cover of insulation construction main part has the heat preservation shell, the one end of insulation construction main part is connected with the connector, one side surface connection of connector has the motor, one side surface cover of motor has the bearing protection shell, the bearing protection shell includes protecting wall and nested screw thread, the lower extreme surface mounting of motor has the base.

Preferably, shaft holes are formed in the two sides of the bearing protection shell, and nested threads are formed in the outer wall of the bearing protection shell.

Preferably, a fixing screw is arranged between the bearing protection shell and the connector, and the inner wall of the bearing protection shell is detachably connected with the outer wall of the connector through the fixing screw.

Preferably, the heat preservation shell includes connector, heat preservation shell, fixed screw and connection screw.

Preferably, the connector is located insulation casing's upper end surface and lower extreme surface, the outer wall of insulation casing is evenly seted up to fixed screw, and the number of fixed screw is two, connect the screw and set up in the inside of connector.

Preferably, a nested screw hole is formed between the heat-insulating shell and the heat-insulating structure main body, and the inner wall of the heat-insulating shell is detachably connected with the outer wall of the heat-insulating structure main body through the nested screw hole.

(III) advantageous effects

Compared with the prior art, the utility model provides a multistage centrifugal pump's pump body insulation construction possesses following beneficial effect:

1. the pump body heat preservation structure of the multistage centrifugal pump is used for protecting a rotor on a motor through the arranged bearing protection shell, the rotation of the centrifugal pump is realized by the rotation of a rotating shaft of the centrifugal pump driven by the rotor of a motor, so that an impeller is driven to rotate to achieve a water pumping effect, the rotor rotation stability is kept because the rotor rotates under the consideration of the rotation of the rotor, the motor is influenced by temperature difference on occasions with larger temperature difference change, the rotor easily deviates when rotating, so that the impeller is driven to deviate, the impeller touches the inner wall of the centrifugal pump under the serious condition that the impeller deviates, the impeller and the internal parts of the centrifugal pump are damaged, the service life of the centrifugal pump is shortened, the influence of cold airflow on the motor rotor is reduced through the arranged bearing protection shell, and the bearing protection shell is fixed with the motor rotor through nested threads arranged inside the protection wall, the mounting is convenient, when dismantling, only need twist off the screw of cover on nested screw can, install on the rotor through the hole that inside was seted up, guaranteed its connection structure, the design of bearing protective housing has reduced the stability of electric motor rotor skew, has improved the life of centrifugal pump.

2. The pump body heat insulation structure of the multistage centrifugal pump is used for protecting a centrifugal pump body through the arranged heat insulation shell, the centrifugal pump body is of a cylindrical structure, the heat insulation shell is designed to be of a semicircular nested structure, the heat insulation shell is butted with the inner part of the heat insulation shell through the butting of the two heat insulation shells, the heat insulation shell is butted through the connectors arranged at the upper end and the lower end of the heat insulation shell, corresponding screws are installed inside the connecting screw holes, so that the heat insulation shell cannot be separated when protecting the pump body, the heat insulation shell is fixed on the centrifugal pump body through the designed fixing screw holes, the heat insulation shell is prevented from rotating on the centrifugal pump body, the heat insulation shell is prevented from friction between the heat insulation shell and the connecting screw holes, the heat insulation shell is made of heat insulation materials, the heat insulation shell can be nested inside the heat insulation shell, the heat insulation shell is used for preventing the heat insulation materials from being damaged, and the heat insulation shell is convenient to install and disassemble, and the device is installed in a proper environment and is disassembled in a proper environment.

Drawings

Fig. 1 is the overall structure schematic diagram of the pump body heat preservation structure of the multistage centrifugal pump of the present invention.

Fig. 2 is the structure schematic diagram of the bearing protection shell of the pump body heat insulation structure of the multistage centrifugal pump of the present invention.

Fig. 3 is a side view of the heat-insulating casing of the pump body heat-insulating structure of the multistage centrifugal pump of the present invention.

Fig. 4 is a front view of the heat-insulating casing of the pump body heat-insulating structure of the multistage centrifugal pump of the present invention.

In the figure: 1. a thermal insulation structure main body; 2. an electric motor; 3. a bearing protective housing; 4. a linker; 5. a heat preservation shell; 6. a base; 7. an inlet flange; 8. an outlet flange; 301. a protective wall; 302. nesting threads; 501. a connector; 502. a heat-insulating shell; 503. fixing screw holes; 504. and connecting the screw holes.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a pump body heat insulation structure of a multistage centrifugal pump, an inlet flange 7 is arranged on the outer surface of the front end of a heat insulation structure main body 1, an outlet flange 8 is arranged on the outer surface of the upper end of the heat insulation structure main body 1, a heat insulation shell 5 is sleeved on the outer wall of the heat insulation structure main body 1, one end of the heat insulation structure main body 1 is connected with a connector 4, a motor 2 is connected with the outer surface of one side of the connector 4, a bearing protection shell 3 is sleeved on the outer surface of one side of the motor 2, the bearing protection shell 3 comprises a protection wall 301 and nested threads 302, and a base 6 is arranged on the outer surface of the lower end of the motor 2.

Further, the shaft holes are formed in the two sides of the bearing protection shell 3, the nesting threads 302 are formed in the outer wall of the bearing protection shell 3, the bearing protection shell 3 is used for protecting the rotor of the motor 2, the rotor of the motor 2 is prevented from rotating and deviating due to weather changes, the heat preservation shell 502 is used for fixing the bearing protection shell 3 and the motor rotor, the phenomenon that the bearing protection shell 3 and the motor rotor fall off is avoided, and the stability of the connection structure of the bearing protection shell is guaranteed.

Further, a fixing screw is arranged between the bearing protection shell 3 and the connector 4, and the inner wall of the bearing protection shell 3 is detachably connected with the outer wall of the connector 4 through the fixing screw.

Further, the heat preservation shell 5 comprises a connector 501, a heat preservation shell 502, a fixing screw hole 503 and a connecting screw hole 504, and the heat preservation shell 5 is used for protecting the shell of the pump body of the centrifugal pump.

Further, the connector 501 is located the upper end surface and the lower extreme surface of the heat preservation shell 502, and fixed screw 503 evenly sets up in the outer wall of heat preservation shell 5, and the number of fixed screw 503 is two, connects screw 504 and sets up in the inside of connector 501, and connector 501 is used for connecting heat preservation shell 5 self structure for heat preservation shell 5 is difficult for droing from the centrifugal pump body.

Further, an embedded screw hole is formed between the heat preservation shell 5 and the heat preservation structure main body 1, the inner wall of the heat preservation shell 5 is detachably connected with the outer wall of the heat preservation structure main body 1 through the embedded screw hole, and the connecting screw hole 504 is used for fixing the heat preservation shell 5 on the pump body and preventing the heat preservation shell 5 from rotating on the pump body.

Principle of operation

When the heat preservation structure main body 1 is used, the bearing protection shell 3 is arranged and used for protecting a rotor on a motor, because the rotation of the centrifugal pump is that the rotor of the motor 2 drives the rotation shaft of the centrifugal pump to rotate, thereby driving an impeller to rotate to achieve a water pumping effect, because the rotor rotates, the stability of the rotation of the rotor is kept, in the occasion with larger temperature difference change, the motor is influenced by the temperature difference, the rotor easily deflects to drive the impeller to rotate to deflect, and in serious cases, the impeller touches the inner wall of the centrifugal pump under the condition of deflection, the impeller and parts inside the centrifugal pump are damaged, the service life of the centrifugal pump is reduced, the influence of cold air flow on the motor rotor is reduced through the arranged bearing protection shell 3, and the bearing protection shell 3 is fixed with the motor rotor through the nested thread 302 arranged inside the protection wall 301, the mounting is convenient, when the centrifugal pump is dismounted, only the screw sleeved on the nesting thread 302 needs to be unscrewed, and the bearing is mounted on the rotor through the hole formed in the bearing, so that the connection structure of the bearing is ensured, the design of the bearing protection shell 3 reduces the offset stability of the motor rotor, and the service life of the centrifugal pump is prolonged; the heat preservation shell 5 is arranged for protecting the pump body of the centrifugal pump, because the pump body of the centrifugal pump is of a cylindrical structure, the heat preservation shell 5 is designed to be of a semicircular nested structure, the two heat preservation shells 502 are butted to each other, the pump body of the centrifugal pump is wrapped in the heat preservation shell 5 and butted with each other through the connectors 501 arranged at the upper end and the lower end of the heat preservation shell 5, then the corresponding screws are arranged in the connecting screw holes 504, so that the heat preservation shell 5 cannot be separated when the pump body is protected, the heat preservation shell 5 is fixed on the pump body of the centrifugal pump through the designed fixing screw holes 503 to prevent the heat preservation shell 5 from rotating on the centrifugal pump and avoid friction between the heat preservation shell and the heat preservation shell to influence the heat preservation performance of the heat preservation shell, the heat preservation shell 5 is made of heat preservation materials and can be nested in the heat preservation shell 5, the heat preservation shell 5 is used for avoiding the heat preservation materials from being damaged, and the heat preservation shell 5 is convenient to install and disassemble, and the device is installed in a proper environment and is disassembled in a proper environment.

It is noted that, herein, relational terms such as first and second (a, b, etc.) and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pump body insulation construction of multistage centrifugal pump, includes insulation construction main part (1), its characterized in that: the utility model discloses a heat preservation structure, including heat preservation structure main part (1), one end of heat preservation structure main part (1), motor (2), bearing protective housing (3) including guard wall (301) and nested screw thread (302), the lower extreme surface mounting of motor (2) has base (6), the front end surface of heat preservation structure main part (1) is provided with import flange (7), the upper end surface of heat preservation structure main part (1) is provided with export flange (8), the outer wall cover of heat preservation structure main part (1) has insulation shell (5), the one end of heat preservation structure main part (1) is connected with connector (4), one side surface connection of connector (4) has motor (2), one side surface cover of motor (2) has bearing protective housing (3), bearing protective housing (3) are including guard wall (301) and nested screw thread (302), the lower extreme surface mounting of motor (2) has base (6).

2. The pump body heat insulating structure of a multistage centrifugal pump according to claim 1, characterized in that: the bearing protection shell is characterized in that shaft holes are formed in two sides of the bearing protection shell (3), and nested threads (302) are formed in the outer wall of the bearing protection shell (3).

3. The pump body heat insulating structure of a multistage centrifugal pump according to claim 1, characterized in that: a fixing screw is arranged between the bearing protection shell (3) and the connector (4), and the inner wall of the bearing protection shell (3) is detachably connected with the outer wall of the connector (4) through the fixing screw.

4. The pump body heat insulating structure of a multistage centrifugal pump according to claim 1, characterized in that: the heat preservation shell (5) comprises a connector (501), a heat preservation shell (502), a fixing screw hole (503) and a connecting screw hole (504).

5. The pump body heat insulating structure of a multistage centrifugal pump according to claim 4, characterized in that: connector (501) are located the upper end surface and the lower extreme surface of heat preservation shell (502), the outer wall of heat preservation shell (5) is evenly seted up in fixed screw (503), and the number of fixed screw (503) is two, connect screw (504) and set up the inside in connector (501).

6. The pump body heat insulating structure of a multistage centrifugal pump according to claim 1, characterized in that: the heat insulation structure is characterized in that a nested screw hole is formed between the heat insulation shell (5) and the heat insulation structure main body (1), and the inner wall of the heat insulation shell (5) is detachably connected with the outer wall of the heat insulation structure main body (1) through the nested screw hole.