CN103671267B - A kind of low pressure warning device and there is the centrifugal pump of low pressure warning function - Google Patents
A kind of low pressure warning device and there is the centrifugal pump of low pressure warning function Download PDFInfo
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- CN103671267B CN103671267B CN201310671416.1A CN201310671416A CN103671267B CN 103671267 B CN103671267 B CN 103671267B CN 201310671416 A CN201310671416 A CN 201310671416A CN 103671267 B CN103671267 B CN 103671267B
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- centrifugal pump
- low pressure
- pressure warning
- warning device
- contact plate
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Abstract
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.Technological scheme of the present invention is specially, and low pressure warning device upper shell was connected with outlet of centrifugal pump by connecting tube.When centrifugal pump normally works, under the effect of its outlet pressure, the effect that diaphragm unit overcomes elastic element moves downward, and contact plate and sensitive switch touching button disconnect, and no signal sends; When centrifugal pump breaks down, when outlet pressure is reduced to a certain setting value, diaphragm unit drives contact plate to move upward under the effect of elastic element, contact plate touches sensitive switch, switched on power by electric coupler, send guard sign, remind operator to take corresponding measure in time, effectively can prevent the diffusion of fault and endanger further, ensure the safety of equipment and personnel.
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
It is arrange pressure gauge on pipeline that the low pressure warning mode generally adopted at present mainly contains two kinds: one, and indicate loine pressure by pressure gauge, this kind of mode needs personal monitoring, uses inconvenience; The second is in pipeline, arrange special pressure monitoring device, and pressure monitoring device generally includes the parts such as sensor, controller, processor, this kind of mode energy 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, once it breaks down and can not probably jeopardize whole system or equipment, personal safety by Timeliness coverage, causes disaster.The most typical phenomenon of the failure of centrifugal pump is that pressure reduces or disappears, and therefore implementing low pressure warning to it can effectively early warning fault, and the realization of the low pressure warning function of current centrifugal pump mainly relies on external equipment, adds 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, centrifugal pump break down cause pressure drop time, automatically can send guard sign.
Technological scheme of the present invention: a kind of low pressure warning device, comprise the upper shell 101 being provided with impulse interface, diaphragm unit 103 is provided with between upper shell 101 and lower shell body 102, diaphragm unit 103 is riveted by upper steel core 104 and lower steel core 105, elastic element 106 is provided with between lower steel core 105 and lower shell body 102, attachment post 107 connects lower steel core 105 and contact plate 108, and contact plate 108 is near the sensitive switch 110 be connected with electric coupler 109.
Described diaphragm unit 103 is made for rubber material.
Have a centrifugal pump for low pressure warning function, comprise connecting tube 2 and centrifugal pump body 3, also comprise the low pressure warning device 1 being arranged on centrifugal pump body 3 and exporting, 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 a kind of low pressure warning device of design and the centrifugal pump with low pressure warning function, low pressure warning device of the present invention is integrated on centrifugal pump body, structure is simple, enforcement difficulty is little, cost is low, significantly reduces the complexity of system.Centrifugal pump break down cause pressure drop time, automatically can send guard sign, remind in time operator to take corresponding measure, effectively can prevent the diffusion of fault and endanger further, the safety of guarantee equipment and personnel.
Accompanying drawing illustrates:
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
The present invention is described in further detail below.Refer to Fig. 1 to Fig. 2.A kind of low pressure warning device, comprise the upper shell 101 being provided with impulse interface, diaphragm unit 103 is provided with between upper shell 101 and lower shell body 102, diaphragm unit 103 is riveted by upper steel core 104 and lower steel core 105, elastic element 106 is provided with between lower steel core 105 and lower shell body 102, attachment post 107 connects lower steel core and contact plate 108, and contact plate 108 is near the sensitive switch 110 be connected with electric coupler 109.Described diaphragm unit 103 is made for rubber material.
Have a centrifugal pump for low pressure warning function, comprise connecting tube 2 and centrifugal pump body 3, also comprise the low pressure warning device 1 being arranged on centrifugal pump body 3 and exporting, the outlet of centrifugal pump body 3 is connected with low pressure warning device 1 by connecting tube 2.
When centrifugal pump normally works, 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 sends; 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, switched on power by electric coupler 109, low pressure warning device 1 sends guard sign automatically, timely prompting operator take corresponding measure, effectively can prevent the diffusion of fault and endanger further, ensure the safety of equipment and personnel.
The present invention is by a kind of low pressure warning device of design and the centrifugal pump with low pressure warning function, and low pressure warning device of the present invention is integrated on centrifugal pump body, and structure is simple, enforcement difficulty is little, cost is low, significantly reduces the complexity of system.Centrifugal pump break down cause pressure drop time, automatically can send guard sign, remind in time operator to take corresponding measure, effectively can prevent the diffusion of fault and endanger further, the safety of guarantee equipment and personnel.
Claims (3)
1. a low pressure warning device, it is characterized in that, comprise the upper shell (101) being provided with impulse interface, diaphragm unit (103) is provided with between upper shell (101) and lower shell body (102), diaphragm unit (103) is riveted as a whole by upper steel core (104) and lower steel core (105), elastic element (106) is provided with between lower steel core (105) and lower shell body (102), attachment post (107) connects lower steel core (105) and contact plate (108), contact plate (108) is near the sensitive switch (110) be 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. one kind has the centrifugal pump of low pressure warning device as claimed in claim 1 or 2, comprise connecting tube (2) and centrifugal pump body (3), it is characterized in that, also comprise the low pressure warning device (1) being arranged on centrifugal pump body (3) and exporting, 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 CN103671267A (en) | 2014-03-26 |
| CN103671267B true CN103671267B (en) | 2016-03-23 |
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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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005002977A (en) * | 2003-06-12 | 2005-01-06 | Takao Yamamoto | Waterproof construction of submersible pump |
| KR101256479B1 (en) * | 2011-06-29 | 2013-04-19 | (주)지천펌프공업 | A submersible motor pump system and method therefor |
-
2013
- 2013-12-10 CN CN201310671416.1A patent/CN103671267B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
|---|---|
| CN103671267A (en) | 2014-03-26 |
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