CN2787884Y - Pressure sensor for submersible pump - Google Patents
Pressure sensor for submersible pump Download PDFInfo
- Publication number
- CN2787884Y CN2787884Y CN 200520038872 CN200520038872U CN2787884Y CN 2787884 Y CN2787884 Y CN 2787884Y CN 200520038872 CN200520038872 CN 200520038872 CN 200520038872 U CN200520038872 U CN 200520038872U CN 2787884 Y CN2787884 Y CN 2787884Y
- Authority
- CN
- China
- Prior art keywords
- pressure transducer
- pressure sensor
- submersible pump
- motor
- connecting passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 description 15
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a pressure sensor used for a submersible pump, which comprise an electromotor. The utility model is characterized in that the pressure sensor is arranged inside a hollow cavity positioned inside an outer shell of the electromotor; an entryway is arranged between the circumferential wall of the outer shell of the electromotor and a lateral surface on the top end, and the lateral surface on the top end is opposite to the circumferential wall; the top end of the electromotor has a connecting passage which is connected with the entryway; the connecting passage is communicated with the hollow cavity inside the outer shell of the electromotor, which is used for arranging the pressure sensor. The pressure sensor has an outer shell, on which a successive component is arranged, and the successive component extrudes into the connecting passage; the successive component of the pressure sensor has a passage. The utility model has the advantages of the pressure sensor is arranged inside a machine cover of the electromotor, so that the pressure sensor can be protected and the pressure sensor can not be damaged in the processes of operation and maintenance. In addition, the type of the arrangement can ensure the reliability of the pressure sensor used for a submersible pump.
Description
Technical field
The utility model relates to a kind of sensor, particularly a kind of pressure transducer that is used for submersible pump.
Background technique
The centrifugal pump that utilizes drive motor to drive at present transports out waste water from the open caisson of settled wastewater, need the suction district of centrifugal pump is immersed in the waste water of deposition, drive motor is furnished with a pressure transducer, it is dipped in the waste water well with centrifugal pump, when the waste water water level reaches high water level in the well of predesignating, pressure transducer just has been loaded waste water, then, pressure transducer transmits signal by the single line cable to the switch gear of connecting drive motor, then centrifugal pump just begins to aspirate waste water, up to the waste water drawdown during to certain degree, when promptly only having the suction district of centrifugal pump also to be dipped in the well in the waste water, centrifugal pump just cuts out.Only when the waste water water level reaches aforementioned high water level once more, centrifugal pump just can be opened once more later on.Pressure transducer hang over be laid in and in cable on, this cable leads to the aforementioned switches device, switch gear then is disposed in not to be had the local of waste water or is disposed in outside the well in the well.Cable leads to the drive motor of centrifugal pump from switch gear there, so that turn off or connect motor.Expensive time and expense are wanted in the distribution of used pressure transducer and installation, and when maintaining when the unit of being made up of centrifugal pump and drive motor is maintained and/or to the waste water well, the freely-suspended cable that is connected to pressure transducer damages easily.In addition, the cable of the pressure transducer and the pressure transducer that plays can be destroyed because of having corrosive waste water, and so cause submersible pump can't proper functioning.
Summary of the invention
The purpose of this utility model overcomes in the prior art controls existing above-mentioned problem with the pressure transducer on the cable that hangs in the well that is laid in to submersible pump, provide a kind of pressure transducer that makes can quick mounting, expense is cheap, and can prevent to damage and guarantee the pressure transducer that is used for submersible pump of its unfailing performance.The utility model is designed for the pressure transducer of submersible pump, comprise motor, it is characterized in that: have a pressure transducer to be laid in and be in the interior cavity of motor casing, between the side surface on the peripheral wall of motor casing and a top relative, inlet channel is arranged with it, on the motor top, there is a connecting passage to be connected with inlet channel, connecting passage is communicated with the cavity in the motor casing of laying pressure transducer, pressure transducer has a shell, at this continuous member of charging into connecting passage is arranged above the shell, a passage is arranged on the continuous member of pressure transducer.Inlet channel between the side surface on the peripheral wall of motor casing and a top relative with it is an annular gap.The width of the inlet channel of annular gap is less than the diameter of connecting passage.A stator supporter is arranged in motor casing, and the annular space between the peripheral wall of stator supporter and motor casing has constituted the cavity in the motor casing.The utility model has the advantages that pressure transducer is arranged in the hood of drive motor, pressure transducer is protected, when maintaining, just can not damage pressure transducer, and this arrangement also can guarantee its unfailing performance with operation.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing 1 is a structural representation of the present utility model,
Accompanying drawing 2 is the A portion structure for amplifying schematic representation (turning over turnback) of Fig. 1 of the present utility model,
Accompanying drawing 3 is a pressure transducer shell construction schematic representation of the present utility model,
Embodiment
Comprise motor 1 among the figure, it is characterized in that: have a pressure transducer 2 to be laid in and be in the interior cavity 3 of motor 2 shells, between the side surface on the peripheral wall of motor 1 shell and a top relative, inlet channel 4 is arranged with it, on motor 1 top, there is a connecting passage 5 to be connected with inlet channel 4, the cavity 3 that connecting passage 5 is communicated with in motor 1 shell of laying pressure transducer 2, pressure transducer 2 has a shell 6, at this continuous member 7 of charging into connecting passage 5 is arranged above the shell 6, a passage 8 is arranged on the continuous member 7 of pressure transducer 2.Inlet channel 4 between the peripheral wall of motor 1 shell and the side surface on a top relative with it is an annular gap.The width of the inlet channel 4 of annular gap is less than the diameter of connecting passage 5.A stator supporter 9 is arranged in motor 1 shell, and the annular space between the peripheral wall of stator supporter 9 and motor 1 shell has constituted the cavity 3 in motor 1 shell.
During use since inlet channel 4 as annular gap, be between the surface of end wall before motor 1 shell on the peripheral wall of motor 1 shell and this wall opposite.Guaranteeing thus provides the very big inflow transverse section that at utmost centers on motor 1 range expansion for inlet channel 4, thereby can not cause influencing the generation of the stopping state of inlet channel 4 functions under the more relatively situation of the solid material quantity in waste water, because always there is the enough big or small transverse section that flows freely into yet.The width of annular gap is less than the degree of depth coupled and that lead to the connecting passage 5 of pressure transducer 2.This just partly produces blocking action to the solid garbage that enters annular gap, because solid garbage partly is sandwiched in the annular gap, and therefore can not continue to flow to pressure transducer 2 with waste water.The pressure transducer 2 that is arranged in cavity 3 has very hard shell 6, is furnished with a continuous member 7 above, and a passage 8 is then arranged on the continuous member 7.Continuous member 7 is protruding to be advanced in the connecting passage 5, and pressure transducer 2 just is loaded pressure by the passage from connecting passage 5 like this.On continuous member 7, add upper sealing ring 11, so that make connecting passage 5 keep sealing state with respect to the inner space of motor 1 shell.Pressure transducer 2 is connected with the electric controling element 12 at the drive motor 1 of cavity 3 the insides equally by means of the electric wire 10 of a weak point in cavity 3 the insides.
Claims (4)
1, the pressure transducer that is used for submersible pump, comprise motor, it is characterized in that: have a pressure transducer to be laid in and be in the interior cavity of motor casing, between the side surface on the peripheral wall of motor casing and a top relative, inlet channel is arranged with it, on the motor top, there is a connecting passage to be connected with inlet channel, connecting passage is communicated with the cavity in the motor casing of laying pressure transducer, pressure transducer has a shell, at this continuous member of charging into connecting passage is arranged above the shell, a passage is arranged on the continuous member of pressure transducer.
2, by the described pressure transducer that is used for submersible pump of claim 1, it is characterized in that: the inlet channel between the side surface on the peripheral wall of motor casing and a top relative with it is an annular gap.
3, by the described pressure transducer that is used for submersible pump of claim 2, it is characterized in that: the width of the inlet channel of annular gap is less than the diameter of connecting passage.
4, by the described pressure transducer that is used for submersible pump of claim 1, it is characterized in that: a stator supporter is arranged in motor casing, and the annular space between the peripheral wall of stator supporter and motor casing has constituted the cavity in the motor casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520038872 CN2787884Y (en) | 2005-01-11 | 2005-01-11 | Pressure sensor for submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520038872 CN2787884Y (en) | 2005-01-11 | 2005-01-11 | Pressure sensor for submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2787884Y true CN2787884Y (en) | 2006-06-14 |
Family
ID=36786179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520038872 Expired - Fee Related CN2787884Y (en) | 2005-01-11 | 2005-01-11 | Pressure sensor for submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2787884Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644319A (en) * | 2011-02-16 | 2012-08-22 | 格伦德福斯管理联合股份公司 | Waste water hoisting facility |
-
2005
- 2005-01-11 CN CN 200520038872 patent/CN2787884Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644319A (en) * | 2011-02-16 | 2012-08-22 | 格伦德福斯管理联合股份公司 | Waste water hoisting facility |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Christensen Paul Erick Designer before: He Ziguang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: HE ZIGUANG TO: PAUL ERIK CHRISTENSEN |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |