CN214366742U

CN214366742U - Submersible sewage pump

Info

Publication number: CN214366742U
Application number: CN202022914957.0U
Authority: CN
Inventors: 孙建云; 陈渊
Original assignee: Guangzhou Baiyuan Pump Group Ltd
Current assignee: Guangzhou Baiyuan Pump Group Ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-10-08
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses a submersible sewage pump, include: the motor, the oil chamber and the pump body are connected in sequence, and the motor comprises a motor shell and a rotor component; the pump body is provided with an inner cavity; the impeller is arranged in the inner cavity and connected with the rotor component; the cylinder is arranged outside the motor shell and forms a sealed cavity, and the sealed cavity is provided with a water inlet and a water outlet; the cooling system comprises a cooling module, a water inlet pipeline and a water outlet pipeline, wherein the cooling module, the water inlet pipeline and the water outlet pipeline form a circulating system; this submersible sewage pump is through set up the barrel outside the motor, and sealed cavity and including the injected water are constituteed to barrel and motor casing to set up cooling system and constantly carry out the heat transfer to the water in the sealed cavity, the water backward flow after the heat transfer to cooling system forms a confined circulation system, thereby realizes under the situation that sewage does not submerge submersible sewage pump, can run for a long time, and is safe errorless.

Description

Submersible sewage pump

Technical Field

The utility model relates to a immersible pump technical field, in particular to submersible sewage pump.

Background

At present, submersible sewage pumps in the market are required to be submerged under water for use, and the reason is that when sewage in a pool drops below a submersible sewage pump motor, heat generated by the motor in operation cannot be dissipated, and the motor can be damaged after long-time operation. In important places such as subways and airports, the drainage safety is considered, the submersible sewage pump is required to be operated for a long time under the condition that sewage is not submerged, the sewage is easy to block a cooling water pipe, the existing sewage is required not to be adopted to cool a motor shell, and meanwhile, the submersible sewage pump cannot be used for cooling a motor by adopting a scheme of externally connecting tap water because tap water is not connected to the place using the pump. The common submersible sewage pump in such a place cannot meet the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a submersible sewage pump, can not flood the long-time operation under the situation of motor at sewage, realize the effect of safe discharge sewage.

According to a first aspect embodiment of the utility model, provide a submersible sewage pump, include: the motor comprises a motor shell and a rotor component arranged in the motor shell; the oil chamber is connected with the motor shell; the pump body is connected with the oil chamber and is provided with an inner cavity; the impeller is arranged in the inner cavity and is connected with the rotor component; the cylinder is arranged outside the motor shell, the motor shell and the cylinder form a sealed cavity, and the sealed cavity is provided with a water inlet and a water outlet; and the cooling system comprises a cooling module, a water inlet pipeline and a water outlet pipeline, the cooling module, the water inlet pipeline and the water outlet pipeline form a circulating system, the cooling module is arranged in the inner cavity, one end of the water inlet pipeline is connected with the output end of the cooling module, the other end of the water inlet pipeline is connected with the water inlet, one end of the water outlet pipeline is connected with the water outlet, and the other end of the water outlet pipeline is connected with the input end of the cooling module.

Has the advantages that: this submersible sewage pump is through set up the barrel outside the motor, and sealed cavity and injected water in sealed cavity are constituteed to barrel and motor casing to set up cooling system and constantly carry out the heat transfer to the water in the sealed cavity, the water backward flow after the heat transfer to cooling system forms a confined circulation system, thereby realizes under the situation that sewage does not submerge submersible sewage pump, can long-time operation, and is safe errorless.

According to the utility model discloses submersible sewage pump of first aspect embodiment, cooling module includes water pump and coil pipe, and the output of water pump is connected with the one end of inlet channel, and the input of water pump is connected with the one end of coil pipe, and the other end of coil pipe is connected with outlet conduit's the other end.

According to the utility model discloses the submersible sewage pump of first aspect embodiment is equipped with the pressurization inlet tube between water pump and the coil pipe.

According to the utility model discloses submersible sewage pump, water pump are miniature cooling pump of first aspect embodiment.

According to the utility model discloses the submersible sewage pump of first aspect embodiment all is equipped with seal assembly between grease chamber and the motor, between grease chamber and the pump body.

According to the utility model discloses submersible sewage pump of first aspect embodiment, seal assembly is mechanical seal.

According to the utility model discloses the submersible sewage pump of first aspect embodiment is equipped with the pump cover between the grease chamber and the pump body, and one side that is close to the inner chamber in the pump cover is equipped with the ring boss, and the coil pipe nestification is outside the ring boss, the seal assembly set up at the ring boss with between the impeller.

According to the utility model discloses the submersible sewage pump of first aspect embodiment is equipped with the through-hole on the ring boss and sets up the heavy groove outside the through-hole, and the through-hole is worn to locate by the rotor part, and seal assembly's one end butt is at heavy inslot.

According to the utility model discloses submersible sewage pump of the first aspect embodiment, the end of rotor part is equipped with the impeller nut, and the impeller nut is used for fixing the impeller on the rotor part.

According to the utility model discloses submersible sewage pump of first aspect embodiment, the water inlet sets up in seal chamber's bottom, and the delivery port setting is at seal chamber's top.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, a submersible sewage pump includes a motor, an oil chamber 10 and a pump body 1, wherein the motor includes a motor housing 5 and a rotor part 7 disposed in the motor housing 5; wherein the oil chamber 10 is connected with the motor shell 5; the pump body 1 is connected with an oil chamber 10, the pump body 1 is provided with an inner cavity, specifically, the upper end of the oil chamber 10 is connected with the lower end of the motor, and the lower end of the oil chamber 10 is connected with the pump body 1; the impeller 12 is arranged in the inner cavity, and the impeller 12 is connected with the rotor part 7 and driven by the motor to rotate; the cylinder 6 is arranged outside the motor shell 5, the motor shell 5 and the cylinder 6 form a sealed cavity, and the sealed cavity is provided with a water inlet and a water outlet; and the cooling system comprises a cooling module, a water inlet pipeline 4 and a water outlet pipeline 8, the cooling module is arranged in the inner cavity, one end of the water inlet pipeline 4 is connected with the output end of the cooling module, the other end of the water inlet pipeline 4 is connected with the water inlet, one end of the water outlet pipeline 8 is connected with the water outlet, and the other end of the water outlet pipeline 8 is connected with the input end of the cooling module. This submersible sewage pump is through set up barrel 6 outside the motor, and barrel 6 constitutes seal chamber and injected water in seal chamber with motor casing 5 to set up cooling system and constantly carry out the heat transfer to the water in the seal chamber, the water backward flow after the heat transfer to cooling system, forms a confined circulation system, thereby realizes under the situation that submersible sewage pump is not submerged to sewage, can run for a long time, and is safe errorless.

When the submersible sewage pump works normally, the pump body 1 is filled with sewage, and the cooling system can utilize the sewage to exchange heat; if the submersible sewage pump runs under the condition that sewage is not flooded, clear water can be directly added into the sealed cavity, the cooling system can utilize the clear water to exchange heat at the moment, and preferably, the submersible sewage pump can be directly reused after the clear water is added into the sealed cavity, so that the submersible sewage pump can be ensured to be suitable for different conditions.

In this embodiment, the cooling module includes water pump 13 and coil pipe 3, and the output of water pump 13 is connected with the one end of inlet channel 4, and the input of water pump 13 is connected with the one end of coil pipe 3, and the other end of coil pipe 3 is connected with outlet conduit 8's the other end. The coil 3 exchanges heat with water in the inner cavity, and then is pressurized by the water pump 13 to convey the water back to the sealed cavity.

Preferably, be equipped with pressurization inlet tube 2 between water pump 13 and the coil pipe 3, improve the efficiency of heat transfer, guarantee that the motor can rapid cooling. The water pump 13 is a micro cooling pump with better effect.

In this embodiment, sealing assemblies 9 are disposed between the oil chamber 10 and the motor and between the oil chamber 10 and the pump body 1, the rotor member 7 passes through the oil chamber 10, and the end of the rotor member is located in the inner cavity, so that the sealing assemblies 9 are used for ensuring the sealing condition between the oil chamber 10 and the motor and between the oil chamber 10 and the pump body 1. Preferably, the sealing assembly 9 is a mechanical seal, so that the sealing effect is better and ensured.

In this embodiment, be equipped with pump cover 11 between the grease chamber 10 and the pump body 1, be close to one side of inner chamber in the pump cover 11 and be equipped with the ring boss, coil pipe 3 nestification is outside the ring boss, and coil pipe 3 is located between pump cover 11 and impeller 12 promptly, seal assembly 9 set up in the ring boss with between the impeller 12, the ring boss can provide the locating surface for seal assembly 9's one end.

Preferably, be equipped with the through-hole on the ring boss and set up the heavy groove outside the through-hole, through-hole is worn to locate by rotor part 7, and the one end butt of seal assembly 9 is in heavy inslot, through circular boss positioning coil pipe 3, rotor part 7 and seal assembly 9, guarantees structural design's reasonable.

Preferably, the rotor part 7 is provided with an impeller nut 14 at the end, and the impeller nut 14 is used for fixing the impeller 12 on the rotor part 7.

Preferably, the water inlet is arranged at the bottom of the sealed cavity, and the water outlet is arranged at the top of the sealed cavity, so that water used for cooling can be ensured to fully contact with the motor shell, and the temperature of the motor is reduced.

When the submersible sewage pump is used specifically, water is added into the sealed cavity and the cooling micro pump is started, and the cooling micro pump cools the water by the cooling micro pump; meanwhile, water pressurized by the cooling micro pump flows into the bottom of the sealed cavity through the water inlet pipeline 4 and then flows out of the top of the sealed cavity, so that the motor is cooled; the temperature of the water rises at this time, and the water flows into the coil pipe 3 through the water outlet pipeline 8, and the heated water exchanges heat in the coil pipe 3 at this time. The water after heat exchange flows into the cooling micro pump through the pressurizing water inlet pipe 2 to form a closed circulating system, so that the submersible sewage pump can run for a long time without causing any fault under the condition that sewage does not submerge the submersible sewage pump.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A submersible sewage pump, comprising:

a motor including a motor housing and a rotor component disposed within the motor housing;

an oil chamber connected to the motor case;

the pump body is connected with the oil chamber and is provided with an inner cavity;

an impeller disposed within the cavity, the impeller coupled to the rotor member;

the cylinder is arranged outside the motor shell, the motor shell and the cylinder form a sealed cavity, and the sealed cavity is provided with a water inlet and a water outlet; and

the cooling system comprises a cooling module, a water inlet pipeline and a water outlet pipeline, wherein the cooling module, the water inlet pipeline and the water outlet pipeline form a circulating system, the cooling module is arranged in the inner cavity, one end of the water inlet pipeline is connected with the output end of the cooling module, the other end of the water inlet pipeline is connected with the water inlet, one end of the water outlet pipeline is connected with the water outlet, and the other end of the water outlet pipeline is connected with the input end of the cooling module.

2. The submersible sewage pump of claim 1, wherein: the cooling module comprises a water pump and a coil pipe, the output end of the water pump is connected with one end of the water inlet pipeline, the input end of the water pump is connected with one end of the coil pipe, and the other end of the coil pipe is connected with the other end of the water outlet pipeline.

3. The submersible sewage pump of claim 2, wherein: and a pressurizing water inlet pipe is arranged between the water pump and the coil pipe.

4. The submersible sewage pump of claim 2, wherein: the water pump is a micro cooling pump.

5. The submersible sewage pump of claim 2, wherein: and sealing assemblies are arranged between the oil chamber and the motor and between the oil chamber and the pump body.

6. The submersible sewage pump of claim 5, wherein: the seal assembly is a mechanical seal.

7. The submersible sewage pump of claim 5, wherein: the pump cover is arranged between the oil chamber and the pump body, a circular boss is arranged on one side, close to the inner cavity, of the pump cover, the coil pipe is nested outside the circular boss, and the sealing assembly is arranged between the circular boss and the impeller.

8. The submersible sewage pump of claim 7, wherein: the ring boss is provided with a through hole and a sinking groove arranged outside the through hole, the rotor component penetrates through the through hole, and one end of the sealing component is abutted to the inside of the sinking groove.

9. The submersible sewage pump of claim 1, wherein: and the tail end of the rotor part is provided with an impeller nut which is used for fixing the impeller on the rotor part.

10. A submersible sewage pump as recited in any of claims 1 to 9, wherein: the water inlet is arranged at the bottom of the sealed cavity, and the water outlet is arranged at the top of the sealed cavity.