CN218717547U

CN218717547U - Oil-cooling external pump applied to sewage lifting device

Info

Publication number: CN218717547U
Application number: CN202222145798.1U
Authority: CN
Inventors: 于永利
Original assignee: Shanghai Zhiliu Environmental Protection Technology Co ltd
Current assignee: Shanghai Zhiliu Environmental Protection Technology Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2023-03-24
Anticipated expiration: 2032-08-15

Abstract

The utility model provides an use oil-cooling external pump on sewage lifting mechanism relates to sewage lifting equipment technical field, this oil-cooling external pump includes the pump body and locates the motor room of pump body top, be equipped with motor element in the motor room, be equipped with the hydro-cylinder between motor room and the pump body, be equipped with grease chamber in the hydro-cylinder, be equipped with on the hydro-cylinder with the oiling mouth of grease chamber intercommunication, grease chamber and motor room intercommunication inject the coolant oil into to grease chamber through oiling mouth, the coolant oil flows into the motor room through grease chamber, the coolant oil that flows into the motor room is used for cooling motor element. The utility model discloses an oiling mouth injects the coolant oil to grease chamber, and the coolant oil flows into the motor room through grease chamber, and the coolant oil that flows into the motor room can let in the pump produce thermal motor element and all soak in the coolant oil, utilizes the fast heat conductivity of coolant oil, absorbs produced heat when electronic component operates rapidly, reaches the radiating block promptly, the slow effect of programming rate in the pump, and the coolant oil can also play lubricated effect, increase of service life to motor element simultaneously.

Description

Oil-cooling external pump applied to sewage lifting device

Technical Field

The utility model belongs to the technical field of sewage lifting means technique and specifically relates to an use oil-cooling external pump on sewage lifting mechanism.

Background

The existing sewage lifting device is divided into two types according to the relative position of a matched water pump and a sewage tank: the first type is that the built-in sewage lifter, namely the matched water pump, is arranged inside the water collecting tank, and the second type is that the external sewage lifter, namely the matched water pump, is arranged outside the water collecting tank. The external sewage lifting device has the advantages of long service life (the pump body cannot be corroded), convenience in observation, easiness in disassembly and maintenance and the like because the water pump is not soaked in the sewage tank, so that the external sewage lifting device becomes the mainstream of the sewage lifting device.

However, the external sewage raiser also has the following disadvantages: the water pump radiating mode of the external sewage raiser is through natural cooling, and the motor adopts the S3 working system, which means that the external sewage raiser can only adopt intermittent working and can not continuously work. Although the intermittent operation of the external sewage raiser can meet the use requirements under most working conditions, the external sewage raiser also needs to be continuously operated under some special working conditions.

Therefore, how to improve the heat dissipation effect of the water pump of the external sewage lifter in the natural state and the lubrication heat dissipation effect of the internal bearing mechanical rotating part becomes a technical problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an use oil-cooling external pump on sewage lifting mechanism to solve the external sewage lifting mechanism continuous operation among the prior art, the water pump has the poor technical problem of radiating effect under natural state.

In order to realize the above-mentioned purpose, the utility model provides an use oil cooling external pump on sewage lifting mechanism, include the pump body and locate the motor room of pump body top, the indoor motor element that is equipped with of motor, the motor room with be equipped with the hydro-cylinder between the pump body, be equipped with grease chamber in the hydro-cylinder, be equipped with on the hydro-cylinder with the oiling mouth of grease chamber intercommunication, grease chamber with motor room intercommunication, through oiling mouth to grease chamber pours into the coolant oil, and the coolant oil passes through grease chamber flows into motor room, the inflow the coolant oil of motor room is used for the cooling motor element.

Preferably, one side of the oil cylinder opposite to the motor chamber is provided with a first partition plate, the first partition plate is used for separating the motor chamber from the oil chamber, the first partition plate is provided with a first oil guide hole, and the first oil guide hole is used for communicating the oil chamber with the motor chamber.

Preferably, the oil filling port is located on the side of the oil cylinder, the first oil guide hole is located above the oil cylinder, and the first oil guide hole is far away from the oil filling port.

Preferably, the motor chamber comprises an upper motor chamber and a lower motor chamber, the lower motor chamber is arranged close to the oil cylinder, the first partition plate is arranged between the lower motor chamber and the oil cylinder, and the upper motor is arranged above the lower motor chamber.

Preferably, a second partition plate is arranged between the upper motor chamber and the lower motor chamber, and the second partition plate is used for partitioning the upper motor chamber and the lower motor chamber.

Preferably, a second oil guide hole is formed in the second partition plate, and the second oil guide hole is used for communicating the lower motor chamber and the upper motor chamber.

Preferably, the motor assembly includes a motor shaft, a rotor, a winding stator, a bearing and a mechanical seal, the motor shaft extends from the motor chamber to the oil cylinder, the rotor is sleeved on the motor shaft, the winding stator is sleeved on the rotor, the bearing is installed on the motor shaft and located at two sides of the rotor, the mechanical seal is installed at the tail end of the motor shaft, and the cooling oil is used for cooling the motor shaft, the rotor, the winding stator, the bearing and the mechanical seal.

Preferably, the end of the motor shaft is provided with an impeller, and the impeller is arranged below the oil cylinder.

The utility model provides an oil-cooling external pump has following technological effect:

this kind of oil-cooling external pump mainly comprises the pump body and motor room, and the top at the pump body is installed to the motor room, is equipped with motor element in the motor room, installs the hydro-cylinder between the motor room and the pump body, is equipped with grease chamber in the hydro-cylinder, be equipped with the oiling mouth with grease chamber intercommunication on the hydro-cylinder, grease chamber and motor room intercommunication, the utility model discloses an oiling mouth injects the coolant oil to grease chamber, and the coolant oil flows into the motor room through grease chamber, and the coolant oil that flows into the motor room can let in the pump produce thermal motor element and all soak in the coolant oil, utilizes the fast heat conductivity of coolant oil, absorbs the produced heat when electronic component operates rapidly, reaches the radiating block promptly, the slow effect of programming rate in the pump, and the coolant oil can also play lubricated effect to motor element simultaneously, increase of service life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an oil-cooled external pump according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the oil-cooled external pump of FIG. 1 at A;

FIG. 3 is an enlarged view of the oil-cooled external pump of FIG. 1 at B.

Wherein, fig. 1-3:

1. a motor chamber; 11. a motor housing; 12. a lower motor chamber; 13. an upper motor chamber; 14. a motor shaft; 15. a rotor; 16. a winding stator; 17. a bearing; 18. mechanical sealing; 19. a second separator; 191. a second oil guide hole; 2. an oil cylinder; 21. an oil filling port; 22. a first separator; 221. a first oil guide hole; 23. an oil chamber.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of 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.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," 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 invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "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; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

As described in the background art, the external sewage raiser in the prior art has the following disadvantages: the water pump heat radiation mode of the external sewage lifting device is through natural cooling, and the motor adopts S3 work system, which means that the external sewage lifting device can only adopt intermittent type nature work, and can not continuous operation. Although intermittent operation of the external sewage lifter can meet the requirements of use under most working conditions, continuous operation is required under some special working conditions.

Based on this, the utility model provides an use oil cooling external pump on sewage lifting mechanism mainly comprises the pump body and motor room, and the top at the pump body is installed to the motor room, is equipped with motor element in the motor room, installs the hydro-cylinder between the motor room and the pump body, is equipped with grease chamber in the hydro-cylinder, is equipped with the oiling mouth with grease chamber intercommunication on the hydro-cylinder, grease chamber and motor room intercommunication, the utility model discloses an oiling mouth injects the coolant oil to grease chamber, and the coolant oil flows into the motor room through grease chamber, and the coolant oil that flows into the motor room can let in the pump produce thermal motor element and all soak in the coolant oil, utilizes the fast heat conductivity of coolant oil, absorbs the produced heat when electronic component operates rapidly, reaches the radiating block promptly, the slow effect of the rate of rising in the pump, and the coolant oil can also play the lubrication action to motor element simultaneously, increase of service life.

The technical solution of the present invention will be described in detail with reference to the accompanying drawings 1-3.

As shown in fig. 1-3, for the structural schematic diagram of the oil-cooled external pump of the present invention, the oil-cooled external pump includes a pump body (not shown in the figure) and a motor chamber 1, the motor chamber 1 is installed above the pump body, and a motor assembly is disposed in the motor chamber 1.

Specifically, the motor assembly includes a motor shaft 14, a rotor 15, a winding stator 16, a bearing 17 and a mechanical seal 18, the rotor 15 is sleeved on the motor shaft 14, the winding stator 16 is sleeved on the rotor 15, the bearing 17 is installed on the motor shaft 14 and located on two sides of the rotor 15, and the mechanical seal is installed at the tail end of the motor shaft 14.

Motor element still includes some other components, for the basic structure of pump, and is comparatively common among the prior art, the utility model discloses not giving unnecessary details to this.

In order to conveniently cool down the motor assembly in the motor chamber 1, as shown in fig. 1, an oil cylinder 2 is arranged between the motor chamber 1 and the pump body, an oil chamber 23 is arranged in the oil cylinder 2, an oil injection port 21 communicated with the oil chamber 23 is arranged on the oil cylinder 2, and the oil chamber 23 is communicated with the motor chamber 1.

The specific process is as follows: the oil cylinder 2 is filled with cooling oil through an oil filling opening 21 on the oil cylinder 2, the cooling oil flows into the motor chamber 1 through an oil chamber 23, and therefore accessories such as an internal motor shaft 14, a rotor 15, a winding stator 16, a bearing 17, a mechanical seal and the like are soaked in the cooling oil, wherein the rotor 15 and the winding stator 16 are heat generated along with the process of converting electric energy into kinetic energy after the water pump is electrified, the bearing 17 and the mechanical seal are in contact (mechanical) friction to generate heat, so that the cooling effect and the lubricating effect of the cooling oil can be utilized, and the temperature rise of the water pump is within a normal range after long-time continuous operation.

Specifically, as shown in fig. 1, a first partition plate 22 is disposed on a side of the oil cylinder 2 opposite to the motor chamber 1, the first partition plate 22 is located in the motor housing 11 and arranged along a radial direction of the motor housing 11, the first partition plate 22 is used for partitioning the motor chamber 1 from the oil chamber 23, a first oil guide hole 221 is disposed on the first partition plate 22, and the first oil guide hole 221 is used for communicating the oil chamber 23 with the motor chamber 1.

Further, the oil inlet 21 is located on the side of the cylinder 2, the first oil guide hole 221 is located above the cylinder 2, the first oil guide hole 221 is located away from the oil inlet 21, as shown in fig. 1, the first oil guide hole 221 is located closer to the other side of the cylinder 2, and the oil inlet 21 is located farther from the first oil guide hole 221, so that the oil chamber 23 can be filled with the cooling oil.

The motor chamber 1 further comprises an upper motor chamber 13 and a lower motor chamber 12, the lower motor chamber 12 is arranged close to the oil cylinder 2, the first partition plate 22 is arranged between the lower motor chamber 12 and the oil cylinder 2, the upper motor chamber 13 is arranged above the lower motor chamber 12, a second partition plate 19 is arranged between the upper motor chamber 13 and the lower motor chamber 12, the second partition plate 19 is used for separating the upper motor chamber 13 from the lower motor chamber 12, a second oil guide hole 191 is formed in the second partition plate 19, and the second oil guide hole 191 is used for communicating the lower motor chamber 12 with the upper motor chamber 13.

The specific process is as follows: the cooling oil is injected into the oil chamber 23 through the oil injection port 21 on the oil cylinder 2, the cooling oil firstly fills the oil chamber 23 and flows into the lower motor chamber 12 in the motor housing 11 through the first oil guide hole 221, and the cooling oil can soak the motor shaft 14, the rotor 15, the winding stator 16, the bearing 17 and the mechanical seal for a long time.

The oil chamber 23 and the lower motor chamber 12 are filled with cooling oil, and the space of the upper motor chamber 13 must be empty, so that the volume expansion phenomenon of the cooling oil after absorbing heat is prevented, and a space for allowing the cooling oil to expand is reserved. If the cooling oil expands, the cooling oil enters the upper motor chamber 13 through the second oil guide hole 191.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An oil-cooled external pump applied to a sewage lifter comprises a pump body and a motor chamber arranged above the pump body, wherein a motor assembly is arranged in the motor chamber, and the oil-cooled external pump is characterized in that an oil cylinder is arranged between the motor chamber and the pump body, an oil chamber is arranged in the oil cylinder, an oil filling port communicated with the oil chamber is arranged on the oil cylinder, the oil chamber is communicated with the motor chamber, cooling oil is injected into the oil chamber through the oil filling port, the cooling oil flows into the motor chamber through the oil chamber, and the cooling oil flowing into the motor chamber is used for cooling the motor assembly;

a first partition plate is arranged on one side, opposite to the motor chamber, of the oil cylinder and used for separating the motor chamber from the oil chamber, a first oil guide hole is formed in the first partition plate and used for communicating the oil chamber with the motor chamber;

the motor chamber comprises an upper motor chamber and a lower motor chamber, the lower motor chamber is close to the oil cylinder, the first partition plate is arranged between the lower motor chamber and the oil cylinder, and the upper motor is arranged above the lower motor chamber.

2. The oil-cooled external pump applied to the sewage lifting machine according to claim 1, wherein the oil filling port is located at a side of the oil cylinder, the first oil guide hole is located above the oil cylinder, and the first oil guide hole is far away from the oil filling port.

3. The external oil-cooled pump applied to the sewage lifting machine as claimed in claim 2, wherein a second partition is disposed between the upper motor chamber and the lower motor chamber, and the second partition is used for separating the upper motor chamber from the lower motor chamber.

4. The external oil-cooled pump applied to the sewage lifting machine as claimed in claim 3, wherein a second oil guide hole is formed in the second partition plate, and the second oil guide hole is used for communicating the lower motor chamber and the upper motor chamber.

5. The oil-cooled external pump applied to the sewage lifting machine of any one of claims 1 to 4, wherein the motor assembly comprises a motor shaft, a rotor, a winding stator, a bearing and a mechanical seal, the motor shaft extends from the motor chamber to the oil cylinder, the rotor is sleeved on the motor shaft, the winding stator is sleeved on the rotor, the bearing is mounted on the motor shaft and located on two sides of the rotor, the mechanical seal is mounted at the tail end of the motor shaft, and the cooling oil is used for cooling the motor shaft, the rotor, the winding stator, the bearing and the mechanical seal.

6. The external oil-cooled pump applied to the sewage lifter according to claim 5, wherein an impeller is arranged at the end of the motor shaft, and the impeller is arranged below the oil cylinder.