CN221144785U - Pipeline pump with combined motor - Google Patents

Abstract

The utility model provides a pipeline pump with a combined motor, which comprises a pump shell provided with a first liquid inlet hole and a first liquid outlet hole, a motor and an impeller which are arranged in the pump shell, wherein a fixing seat is arranged on the inner wall of the pump shell, and a pressurizing cavity is arranged in the fixing seat; the motor is at least two, and each motor is installed in the fixing base, and the output shaft of each motor runs through the fixing base and extends towards the plenum chamber, and the impeller is installed to the coaxial at output shaft end of each motor, and second feed liquor hole and second play liquid hole have been seted up to the fixing base, and second feed liquor hole communicates with each other with first feed liquor hole, and second play liquid hole communicates with each other with first play liquid hole. Compared with a larger waterway of a conventional pipeline pump, the pipeline pump provided by the utility model can start the motor only by a certain degree from the first liquid inlet Kong Jiashui to the liquid level of the pressurizing chamber, and further drive the impeller to rotate to pressurize and convey water flow through the motor, so that continuous water flow is formed.

Description

Pipeline pump with combined motor

Technical Field

The utility model relates to the field of liquid conveying devices, in particular to a pipeline pump with a combined motor.

Background

The pump is a device for converting mechanical energy of a prime mover into liquid energy by means of high-speed rotation of an impeller, and can be divided into a centrifugal pump, an axial flow pump, a mixed flow pump and the like according to different shapes of blades and water outlet directions of the impeller, and can be divided into a water pump, a deep well pump, a pipeline pump and the like according to functional parts.

The pipeline pump is generally of a single motor structure, and with the development of technology, the situation that a plurality of motors are combined for use is generally divided into three types, wherein the first type is that a plurality of motors are connected in series for boosting; the second is to increase the flow rate by connecting multiple motors in parallel, and the third is to mix in series and parallel. All three modes have corresponding application scenes, however, the combined use of multiple motors occupies a large volume, so that the inner cavity of the pipeline pump is large, when the pump is started, a certain liquid level is required to be reached to continuously extract external liquid through the rotation of the impeller, more liquid is required to be arranged in the pipeline pump to form stable water flow, the time spent on exhausting air is long, and the pipeline pump cannot be started quickly. Accordingly, there is a need for a tubing pump with a combined motor that can be started quickly.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provide a pipeline pump with a combined motor, which can be started quickly.

The aim of the utility model is achieved by the following technical measures: a pipeline pump with a combined motor comprises a pump shell provided with a first liquid inlet hole and a first liquid outlet hole, a motor and an impeller which are arranged in the pump shell, wherein a fixing seat is arranged on the inner wall of the pump shell, and a pressurizing cavity is arranged in the fixing seat; the motor is at least two, and each motor is installed in the fixing base, and the output shaft of each motor runs through the fixing base and extends towards the plenum chamber, and the impeller is installed to the coaxial at output shaft end of each motor, and second feed liquor hole and second play liquid hole have been seted up to the fixing base, and second feed liquor hole communicates with each other with first feed liquor hole, and second play liquid hole communicates with each other with first play liquid hole.

Preferably, a pressure-bearing chamber is further arranged in the pump shell, the second liquid outlet hole is communicated with the first liquid outlet hole through the pressure-bearing chamber, and the machine body of each motor is positioned in the pressure-bearing chamber.

Preferably, the rotating shaft of each motor is arranged on the machine body through a water lubrication bearing, and the machine body is provided with a lubrication liquid inlet hole which is communicated with a water gap of the water lubrication bearing.

Preferably, the self-priming valve is arranged at the first liquid inlet hole, and the first liquid inlet hole is communicated with the second liquid inlet hole through the self-priming valve.

Preferably, the motor further comprises a stator and a rotor, wherein the stator is arranged in a jogged groove of the machine body, a waterproof layer is arranged between the stator and the side wall of the jogged groove, the rotating shaft is arranged on the machine body through a bearing, and the rotating shaft is coaxially arranged at the output end of the rotor.

Preferably, a check valve is arranged at the first liquid outlet hole.

Preferably, the device further comprises a flow sensor for detecting the flow rate at the first liquid outlet.

Preferably, the device further comprises a pressure sensor for detecting the water pressure at the first liquid outlet hole.

Compared with the pipeline pump structure with a combined motor in the prior art, the pipeline pump structure has the following advantages:

1. Compared with a larger waterway of a conventional pipeline pump, the pipeline pump provided by the utility model can start the motor only by a certain degree from the first liquid inlet Kong Jiashui to the liquid level of the pressurizing chamber, so that the motor drives the impeller to rotate to pressurize and convey water flow, and continuous water flow is formed.

2. Through setting up the pressure-bearing cavity to the liquid velocity of flow of first liquid outlet department is cushioned to a certain extent, and a small amount of liquid that flows through the pressure-bearing cavity flows to the mouth of a river of water lubricated bearing through lubricated feed liquor hole, plays lubricated cooling's effect to each pivot.

3. Through setting up the waterproof layer at the lateral wall of gomphosis groove, after the injecting glue encapsulation, because the lateral wall of recess is sealed with the stator, later stage steam is unable to permeate, protection stator.

Drawings

Fig. 1 is an axial cross-sectional view of a particular embodiment of a tubing pump with a combined motor.

Fig. 2 is a radial cross-sectional view of a particular embodiment of a tubing pump with a combined motor.

Fig. 3 is an axial cross-sectional view of the motor.

Wherein: 10. a pump housing; 101. a first liquid inlet hole; 102. a first liquid outlet hole; 103. a pressure-bearing chamber; 20. a motor; 201. a lubrication inlet; 30. an impeller; 40. a fixing seat; 401. a second liquid inlet hole; 402. a second liquid outlet hole; 50. a self-priming valve; 60. a check valve.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, the section of fig. 2 is taken to the rotation shaft of the motor 20, fig. 2 is a bottom surface part, the present embodiment provides a pipeline pump with a combined motor 20, which comprises a pump shell 10 provided with a first liquid inlet 101 and a first liquid outlet 102, a motor 20 and an impeller 30 installed in the pump shell 10, a fixing seat 40 installed on the inner wall of the pump shell 10, and a pressurizing cavity arranged in the fixing seat 40; the motors 20 are connected in series, each motor 20 is mounted on the fixed seat 40, the output shaft of each motor 20 penetrates through the fixed seat 40 and extends towards the pressurizing cavity, the tail end of the output shaft of each motor 20 is coaxially provided with the impeller 30, the fixed seat 40 is provided with a second liquid inlet hole 401 and a second liquid outlet hole 402, the second liquid inlet hole 401 is communicated with the first liquid inlet hole 101, and the second liquid outlet hole 402 is communicated with the first liquid outlet hole 102. The pump shell 10 is also provided with a pressure-bearing chamber 103, the second liquid outlet hole 402 is communicated with the first liquid outlet hole 102 through the pressure-bearing chamber 103, and the machine body of each motor 20 is positioned in the pressure-bearing chamber 103.

The motors 20 of the present embodiment are also connected in parallel or in series-parallel according to the cooperation of the waterway and the motors 20.

The power supply mode of each component in this embodiment is the prior art, and is not described herein again because no improvement is involved.

Working principle: liquid enters the pressurizing chamber from the first liquid inlet hole 101 through the second liquid inlet hole 401, when the liquid level of the pressurizing chamber reaches a certain degree, the motor 20 is started, the motor 20 drives the rotating shaft to rotate, the rotating impeller 30 drives the fluid to flow, the fluid flows out of the second liquid outlet hole 402 and enters the pressure-bearing chamber 103, the external liquid continuously flows in from the first liquid inlet hole 101 under the action of the rotating impeller 30, and the liquid in the pressure-bearing chamber 103 continuously flows out of the first liquid outlet hole 102 after the liquid is continuously increased to a certain degree.

The rotating shaft of each motor 20 is mounted on the machine body through a water lubrication bearing, as shown in fig. 3, a lubrication liquid inlet 201 is formed in the machine body, and the lubrication liquid inlet 201 is communicated with a water gap of the water lubrication bearing. The pressure-bearing chamber 103 not only can play a role of buffering liquid, the liquid in the pressure-bearing chamber 103 flows to the water gap of the water lubrication bearing through the lubrication liquid inlet 201, so that the water lubrication bearing and the rotating shaft are lubricated and cooled.

To facilitate the suction of the liquid before the motor 20 is started, the self-priming valve 50 is further arranged at the first liquid inlet hole 101, and the first liquid inlet hole 101 is communicated with the second liquid inlet hole 401 through the self-priming valve 50.

The motor 20 further comprises a stator and a rotor, wherein the stator is arranged in a jogged groove of the machine body, a waterproof layer is arranged between the stator and the side wall of the jogged groove, the rotating shaft is arranged on the machine body through a bearing, and the rotating shaft is coaxially arranged at the output end of the rotor. When the stator is encapsulated by glue injection, the gap between the side face of the stator and the side wall of the groove of the machine body is smaller due to higher requirement on the assembly precision of the stator, the side wall of the groove can be separated from the stator completely by glue solution in the glue injection process, and the stator is damaged due to the fact that the machine body is made of common plastic materials and is easy to be permeated by water vapor in liquid after being soaked for a long time.

To prevent water from flowing back at the first outlet hole 102, a check valve 60 is provided at the first outlet hole 102.

And also includes a flow sensor for detecting the flow rate at the first outlet 102.

And a pressure sensor for detecting the water pressure at the first tapping hole 102.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (8)

1. The pipeline pump with the combined motor comprises a pump shell provided with a first liquid inlet hole and a first liquid outlet hole, and a motor and an impeller which are arranged in the pump shell, and is characterized in that a fixing seat is arranged on the inner wall of the pump shell, and a pressurizing cavity is arranged in the fixing seat; the motor is at least two, each motor is installed in the fixing base, the output shaft of each motor penetrates through the fixing base and extends towards the pressurizing cavity, the impeller is coaxially installed at the tail end of the output shaft of each motor, a second liquid inlet hole and a second liquid outlet hole are formed in the fixing base, the second liquid inlet hole is communicated with the first liquid inlet hole, and the second liquid outlet hole is communicated with the first liquid outlet hole.

2. The tubing pump with a combination motor of claim 1, wherein a pressure-bearing chamber is further provided in said pump housing, said second outlet opening is in communication with said first outlet opening through said pressure-bearing chamber, and a housing of each of said motors is positioned in said pressure-bearing chamber.

3. The tube pump with the combined motor as claimed in claim 2, wherein the rotary shaft of each motor is mounted on the machine body through a water lubrication bearing, the machine body is provided with a lubrication inlet hole, and the lubrication inlet hole is communicated with a water gap of the water lubrication bearing.

4. The tubing pump with a combined motor of claim 1, further comprising a self-priming valve mounted at said first inlet port, said first inlet port communicating with said second inlet port through said self-priming valve.

5. A tubing pump with a combination motor as claimed in claim 3, further comprising a stator and a rotor, wherein the stator is mounted in a fitting groove of the housing, a waterproof layer is provided between the stator and a side wall of the fitting groove, the rotating shaft is mounted on the housing through a bearing, and the rotating shaft is coaxially mounted at an output end of the rotor.

6. The tubing pump with a combined motor of claim 2, wherein a check valve is provided at the first outlet port.

7. The tubing pump with a combined motor of claim 2, further comprising a flow sensor for detecting flow at said first outlet port.

8. The tubing pump with a combination motor of claim 2, further comprising a pressure sensor for detecting water pressure at said first outlet port.