CN103671267A - Low-pressure alarming device and centrifugal pump with low-pressure alarming function - Google Patents
Low-pressure alarming device and centrifugal pump with low-pressure alarming function Download PDFInfo
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- CN103671267A CN103671267A CN201310671416.1A CN201310671416A CN103671267A CN 103671267 A CN103671267 A CN 103671267A CN 201310671416 A CN201310671416 A CN 201310671416A CN 103671267 A CN103671267 A CN 103671267A
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- centrifugal pump
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- low pressure
- pressure
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Abstract
The invention belongs to the field of design of centrifugal pumps, and particularly relates to a low-pressure alarming device and a centrifugal pump with a low-pressure alarming function. According to the technical scheme, an upper shell body of the low-pressure alarming device is connected with an outlet of the centrifugal pump through a communication pipe. When the centrifugal pump works normally, under the action of the pressure of the outlet, a film assembly overcomes the action of an elastic element to move downwards, a contact plate breaks away from a micro switch touch button, and no signal is emitted. When the centrifugal pump breaks down and the pressure of the outlet is lowered to a set value, the film assembly drives the contact plate to move upwards under the action of the elastic element, the contact plate touches the micro switch, a power source is switched on through an electric connector, alarming signals are given out to timely remind operators to take corresponding measures, the failures are effectively prevented from spreading and causing further damage, and safety of equipment and personnel is guaranteed.
Description
Technical field
The invention belongs to Centrifugal Pump Design field, particularly relate to a kind of low pressure warning device and there is the centrifugal pump of low pressure warning function.
Background technique
The low pressure warning mode generally adopting at present mainly contains two kinds: the one, pressure gauge is set on pipeline, and by pressure gauge, indicate loine pressure, this kind of mode needs personal monitoring, uses inconvenient; The second is that special pressure monitoring device is set in pipeline, and pressure monitoring device generally includes the parts such as sensor, controller, processor, and this kind of mode be automatic monitoring pressure in real time, but its complex structure, cost are higher.
Centrifugal pump is widely used in the fields such as oil, chemical industry, Aeronautics and Astronautics, and the transmission or the circulation that are generally medium provide power, can not find in time probably to jeopardize the safety of whole system or equipment, the person once it breaks down, and causes disaster.Therefore the most typical phenomenon of the failure of centrifugal pump is pressure decreased or disappearance, and it being implemented to low pressure warning can effectively early warning fault, and the realization of the low pressure warning function of current centrifugal pump mainly relies on external equipment, has increased the complexity of system.
Summary of the invention
Object of the present invention: design a kind of low pressure warning device and there is the centrifugal pump of low pressure warning function, break down while causing pressure drop at centrifugal pump, can automatically send guard sign.
Technological scheme of the present invention: a kind of low pressure warning device, comprise the upper shell 101 that is provided with impulse interface, between upper shell 101 and lower shell body 102, be provided with diaphragm unit 103, diaphragm unit 103 is riveted by upper steel core 104 and lower steel core 105, between lower steel core 105 and lower shell body 102, be provided with elastic element 106, attachment post 107 connects lower steel core 105 and contact plate 108, and contact plate 108 is near the sensitive switch 110 being connected with electric coupler 109.
Described diaphragm unit 103 is made for rubber material.
A centrifugal pump with low pressure warning function, comprises connecting tube 2 and centrifugal pump body 3, also comprises the low pressure warning device 1 that is arranged on 3 outlets of centrifugal pump body, and the outlet of centrifugal pump body 3 is connected with low pressure warning device 1 by connecting tube 2.
Beneficial effect of the present invention: the present invention is by designing a kind of low pressure warning device and having the centrifugal pump of low pressure warning function, low pressure warning device of the present invention is integrated on centrifugal pump body, simple in structure, implement that difficulty is little, cost is low, has effectively reduced the complexity of system.At centrifugal pump, break down while causing pressure drop, can automatically send guard sign, remind in time operator to take corresponding measure, can effectively prevent the diffusion of fault and further harm, assurance equipment and personnel's safety.
Accompanying drawing explanation:
Fig. 1 is low pressure warning apparatus structure schematic diagram of the present invention;
Fig. 2 is the centrifugal pump schematic diagram that the present invention has low pressure warning function.
Embodiment
Below the present invention is described in further detail.Refer to Fig. 1 to Fig. 2.A kind of low pressure warning device, comprise the upper shell 101 that is provided with impulse interface, between upper shell 101 and lower shell body 102, be provided with diaphragm unit 103, diaphragm unit 103 is riveted by upper steel core 104 and lower steel core 105, between lower steel core 105 and lower shell body 102, be provided with elastic element 106, attachment post 107 connects lower steel core and contact plate 108, and contact plate 108 is near the sensitive switch 110 being connected with electric coupler 109.Described diaphragm unit 103 is made for rubber material.
A centrifugal pump with low pressure warning function, comprises connecting tube 2 and centrifugal pump body 3, also comprises the low pressure warning device 1 that is arranged on 3 outlets of centrifugal pump body, and the outlet of centrifugal pump body 3 is connected with low pressure warning device 1 by connecting tube 2.
When centrifugal pump is normally worked, under the effect of its outlet pressure, the effect that upper steel core 104, diaphragm unit 103 and lower steel core 105 overcome elastic element 106 moves downward, and drive contact plate 108 to move downward by attachment post 107, contact plate 108 does not contact with sensitive switch 110, and no signal is sent; When centrifugal pump causes outlet pressure to be reduced to a certain particular pressure value due to some fault, lower steel core 105, diaphragm unit 103 and upper steel core 104 drive contact plate 108 to move upward by attachment post 107 under the effect of elastic element 106, contact plate 108 touches sensitive switch 110, by electric coupler 109, switch on power, low pressure warning device 1 sends guard sign automatically, remind in time operator to take corresponding measure, can effectively prevent the diffusion of fault and further harm, assurance equipment and personnel's safety.
The present invention is by designing a kind of low pressure warning device and having the centrifugal pump of low pressure warning function, and low pressure warning device of the present invention is integrated on centrifugal pump body, simple in structure, implement that difficulty is little, cost is low, has effectively reduced the complexity of system.At centrifugal pump, break down while causing pressure drop, can automatically send guard sign, remind in time operator to take corresponding measure, can effectively prevent the diffusion of fault and further harm, assurance equipment and personnel's safety.
Claims (3)
1. a low pressure warning device, it is characterized in that, comprise the upper shell (101) that is provided with impulse interface, between upper shell (101) and lower shell body (102), be provided with diaphragm unit (103), diaphragm unit (103) is riveted as a whole by upper steel core (104) and lower steel core (105), between lower steel core (105) and lower shell body (102), be provided with elastic element (106), attachment post (107) connects lower steel core (105) and contact plate (108), and contact plate (108) is near the sensitive switch (110) being connected with electric coupler (109).
2. a kind of low pressure warning device according to claim 1, is characterized in that, described diaphragm unit (103) is made for rubber material.
3. a centrifugal pump with low pressure warning function, comprise connecting tube (2) and centrifugal pump body (3), it is characterized in that, also comprise the low pressure warning device (1) that is arranged on centrifugal pump body (3) outlet, the outlet of centrifugal pump body (3) is connected with low pressure warning device (1) by connecting tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671416.1A CN103671267B (en) | 2013-12-10 | 2013-12-10 | A kind of low pressure warning device and there is the centrifugal pump of low pressure warning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671416.1A CN103671267B (en) | 2013-12-10 | 2013-12-10 | A kind of low pressure warning device and there is the centrifugal pump of low pressure warning function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671267A true CN103671267A (en) | 2014-03-26 |
| CN103671267B CN103671267B (en) | 2016-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310671416.1A Active CN103671267B (en) | 2013-12-10 | 2013-12-10 | A kind of low pressure warning device and there is the centrifugal pump of low pressure warning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671267B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005002977A (en) * | 2003-06-12 | 2005-01-06 | Takao Yamamoto | Waterproof construction of submersible pump |
| CN1820795A (en) * | 2006-03-17 | 2006-08-23 | 浙江大学医学仪器有限公司 | Pressure controlling and releasing device for injection pump |
| KR20130002483A (en) * | 2011-06-29 | 2013-01-08 | (주)지천펌프공업 | A submersible motor pump system and method therefor |
| CN202883426U (en) * | 2012-11-14 | 2013-04-17 | 重庆江增船舶重工有限公司 | Centrifugal compressor surge indicator |
| CN203130586U (en) * | 2013-02-28 | 2013-08-14 | 上海凯泉泵业（集团）有限公司 | Alarming device for multistage pump |
-
2013
- 2013-12-10 CN CN201310671416.1A patent/CN103671267B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005002977A (en) * | 2003-06-12 | 2005-01-06 | Takao Yamamoto | Waterproof construction of submersible pump |
| CN1820795A (en) * | 2006-03-17 | 2006-08-23 | 浙江大学医学仪器有限公司 | Pressure controlling and releasing device for injection pump |
| KR20130002483A (en) * | 2011-06-29 | 2013-01-08 | (주)지천펌프공업 | A submersible motor pump system and method therefor |
| CN202883426U (en) * | 2012-11-14 | 2013-04-17 | 重庆江增船舶重工有限公司 | Centrifugal compressor surge indicator |
| CN203130586U (en) * | 2013-02-28 | 2013-08-14 | 上海凯泉泵业（集团）有限公司 | Alarming device for multistage pump |
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| Publication number | Publication date |
|---|---|
| CN103671267B (en) | 2016-03-23 |
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