CN202851390U - Balancing disk wear monitoring instrument for multistage centrifugal pump - Google Patents
Balancing disk wear monitoring instrument for multistage centrifugal pump Download PDFInfo
- Publication number
- CN202851390U CN202851390U CN 201220173923 CN201220173923U CN202851390U CN 202851390 U CN202851390 U CN 202851390U CN 201220173923 CN201220173923 CN 201220173923 CN 201220173923 U CN201220173923 U CN 201220173923U CN 202851390 U CN202851390 U CN 202851390U
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- wear
- disk wear
- balancing disk
- balance disk
- centrifugal pump
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- Expired - Fee Related
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Abstract
The utility model relates to a balancing disk wear monitoring instrument for a multistage centrifugal pump. The technology of the prior art is characterized in that a tail end of the pump is provided with an indication end cover and a wear indicating device, and the wear condition of the balancing disk can be deduced through the distance between the indication end cover and the wear indicating device. Because an ocular estimation method is adopted, a detection data automatic recording function, a detection data automatic storing function, and a detection data over-limit alarm function cannot be realized. The balancing disk wear monitoring instrument for the multistage centrifugal pump is characterized in that an electrical inductance type displacement sensor (8) is employed as a data acquisition original member, the wear amount of the balancing disk can be converted into linear voltage and current signals, and an intelligent display control instrument (11) with a one-chip microcomputer arranged inside the intelligent display control instrument is used, and therefore signals can be processed and displayed. When the wear amount of the balancing disk is monitored, the operation times and the accumulative operation time of the water pump can be recorded, and alarm signals can be automatically sent out when the wear exceeds the limit.
Description
Technical field
The utility model relates to a kind of device of monitoring centrifugal pump balance disk wear degree, the monitor that especially is comprised of balance disk wear change of variable device and display unit.
Background technique
The balance disk wear monitoring is the monitoring and measuring that multistage centrifugal pump balance disk wear degree is carried out.In multistage centrifugal pump, in order to reduce axial force, mostly adopt Balance disc, the axial force that acts on the bearing is balanced.Centrifugal pump the starting and stopped process in, the axial force dynamic unbalance, Balance disc can produce wearing and tearing.If balance disk wear transfinites, cause impeller water outlet center line and stator water outlet center line to depart from, cause water pump efficiency to descend, in the serious situation, can cause the water pump locking phenomenon.
Prior art is the end at pump, indication end cap and wear indicator are set, the indication end cap is fixedly connected on the terminal bearing part of pump, wear indicator is fixedly connected in the rotating shaft and goes out from terminal bearing is overhanging, the indication end cap is arranged on the wear indicator outside, and both all arrange along the rotating shaft axial direction.When wearing and tearing occur in the pump Balance disc, wear indicator moves inward thereupon, because the position of indication end cap does not from start to finish change, as long as measure the abrasion condition (China, number of patent application 200820161039.1) that the distance of indicating between end cap and the wear indicator just can be inferred the pump Balance disc.Because what adopt is the range estimation observation procedure, can not realize detecting the function of data automatic recording, autostore, overload alarm.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of multistage centrifugal pump balance disk wear monitor is provided.This monitor can not only be monitored the balance disk wear situation, and has the scene alarm value is set, and automatically records monitored data, the function of the automatic alarm that transfinites.
For solving the problems of the technologies described above, basic conception of the present utility model is: adopt inductive displacement transducer to make the data capture original paper, the balance disk wear amount is converted to linear voltage and current signal, establish the intelligent display controller of single-chip microcomputer in the employing, carrying out signal processing and signal shows, the realization scene arranges alarm value, automatically records monitored data, the function of the automatic alarm that transfinites.As a kind of technological scheme that realizes basic conception be: an inductive displacement transducer is installed in that water pump is terminal, this sensor is connected fixed position and is connected with water pump, and sensor output signal is transferred in the intelligent display controller by circuit.
The beneficial effects of the utility model are, in monitoring balance disk wear amount, number of run, the accumulated running time of water pump are carried out record, the fault of water pump is carried out self diagnosis, when wear and tear overrun, can automatically send alarm signal, lay the foundation for realizing the water pump no worker monitor.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is the utility model installation of sensors figure
Fig. 2 is the utility model electrical systematic drawing.
Embodiment
In Fig. 1, the 1-bearing support, the 2-axle sleeve, 3-has port lid, and 4-bearing, 5-packing ring, 6-tightening nut, 7-be without port lid, 8-displacement transducer, 9-sealing gasket, 10-tightening nut.
In Fig. 2, the 8th, displacement transducer, the 11st, intelligent display controller.
In installation of sensors figure shown in Figure 1, inductive displacement transducer 8 usefulness tightening nuts 10 sealing gaskets 9 are fixed on without on the port lid 7, by there being port lid 3 to be connected with bearing support 1, axle sleeve 2, packing ring 5 are connected with bearing 4 by tightening nut 6, as balance disk wear amount conversion equipment, the balance disk wear quantitative change is changed to linear voltage and current signal; In electrical systematic drawing shown in Figure 2, the output signal of displacement transducer 8 is connected with pulse shaper with A/D converter in the intelligent display controller 11; Integrator, A/D, warning setting unit, display unit, communication interface are connected with central control unit through data/address bus or control bus; In the intelligent display controller, signal is processed conversion.With A/D converter analog signal conversion is become digital signal, the wear condition of corresponding Balance disc; With pulse shaper irregular input signal is converted to rectangular pulse, the working time of the corresponding water pump of pulse width, by integrator the water pump operation time is carried out integration, the analogue signal of accumulated running time, convert digital signal to A/D converter, as accumulated running time; The corresponding starting of pump station number of times of pulse number is counted with counter; Control clock with sensor input signal, the zero-time of corresponding water pump installation and operation.Above-mentioned data are all sent among the central control unit RAM and are stored.By warning device is set and sets alarm threshold, when the balance disk wear amount exceeds predetermined value, output alarm signal.The CPU of central control unit, under intelligent display controller panel instruction control, make display device show that respectively balance disk wear numerical value, balance disk wear limit value, water pump operation number of times, water pump accumulated running time and water pump bring into operation Cumulative time of observation phase according to Bias.The communication interface that arranges in the intelligent display controller the data of storing among the RAM, transmits to host computer, provides condition for realizing water pump fault self-diagnosis and no worker monitor.
Claims (2)
1. a multistage centrifugal pump balance disk wear monitor is comprised of balance disk wear change of variable device and display unit; It is characterized in that: it has an inductive displacement transducer (8) to be fixed on without on the port lid (7) with tightening nut (10) sealing gasket (9), and it is connected with bearing support (1), as balance disk wear amount conversion equipment, the balance disk wear quantitative change is changed to linear voltage and current signal; Output signal is connected with pulse shaper with A/D converter in the intelligent display controller (11); Integrator, A/D, warning setting unit, display unit, communication interface are connected with central control unit through data/address bus or control bus, and input signal is processed, stored and shows.
2. multistage centrifugal pump balance disk wear monitor according to claim 1, it is characterized in that: described intelligent display controller (11) is provided with balance disk wear overload alarm unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173923 CN202851390U (en) | 2012-04-24 | 2012-04-24 | Balancing disk wear monitoring instrument for multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173923 CN202851390U (en) | 2012-04-24 | 2012-04-24 | Balancing disk wear monitoring instrument for multistage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851390U true CN202851390U (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220173923 Expired - Fee Related CN202851390U (en) | 2012-04-24 | 2012-04-24 | Balancing disk wear monitoring instrument for multistage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792254A (en) * | 2015-04-13 | 2015-07-22 | 中国核动力研究设计院 | Online monitoring device and online monitoring method for thrust bearing wear loss of fully-sealed pump |
| CN106931870A (en) * | 2017-04-07 | 2017-07-07 | 中国矿业大学 | A kind of the middle pan of scraper conveyor wear detector and method |
-
2012
- 2012-04-24 CN CN 201220173923 patent/CN202851390U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792254A (en) * | 2015-04-13 | 2015-07-22 | 中国核动力研究设计院 | Online monitoring device and online monitoring method for thrust bearing wear loss of fully-sealed pump |
| CN106931870A (en) * | 2017-04-07 | 2017-07-07 | 中国矿业大学 | A kind of the middle pan of scraper conveyor wear detector and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20140424 |