CN202915341U - Steam furnace water level accommodometer - Google Patents
Steam furnace water level accommodometer Download PDFInfo
- Publication number
- CN202915341U CN202915341U CN 201220625320 CN201220625320U CN202915341U CN 202915341 U CN202915341 U CN 202915341U CN 201220625320 CN201220625320 CN 201220625320 CN 201220625320 U CN201220625320 U CN 201220625320U CN 202915341 U CN202915341 U CN 202915341U
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- converter
- water level
- input
- cpu
- accommodometer
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Abstract
The utility model discloses a steam furnace water level accommodometer and belongs to the technical filed of automatic control. The steam furnace water level accommodometer comprises a water level signal input resistor, a frequency feedback input resistor, a frequency conversion breakdown input resistor, an analog-digital (AD) converter, a central processing unit (CPU), a storage, a display screen, a keyboard, a digital-analog (DA) converter and a voltage/current converter. Compared with the prior art, the stream furnace water level accommodometer has the advantages that an intelligent PID algorithm is adopted according to water level deviation to calculate controlled quantity of a frequency converter of a water feed pump and accordingly furnace water level can be controller continuously and accurately, and a good control effect when in actual use is achieved.
Description
Technical field
The utility model belongs to the automatic control technology field, particularly a kind of vapour stove level adjuster.
Background technology
Steam boiler the Water Level Control of Steam normal operation electrode type fluviograph cooperates Water level controller to control at present, and the major defect of this control mode is the too low and feed pump frequent start-stop of control accuracy.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the defective that prior art exists, and a kind of vapour stove level adjuster that can accurately control continuously steam water-level is provided.
The technical solution adopted in the utility model comprises water level signal input resistance, frequency feedback input resistance, frequency conversion fault input resistance, AD converter, CPU, memory, display screen, keyboard, DA converter and VI converter; The water level signal input resistance is connected the input of AD converter with the frequency feedback input resistance, the output of AD converter connects one of them input of CPU, frequency conversion fault input resistance connects one of them input of CPU, keyboard connects one of them input of CPU, the output of CPU connects respectively the input of input, DA converter and the memory of display screen, and the output of DA converter connects the input of VI converter.
The utility model compared with prior art beneficial effect is: accurately control continuously steam water-level thereby this adjusting apparatus adopts intelligent PID algorithm to calculate feed pump Frequency Converter Control amount according to the water level drift gage, the actual use reached good control effect.
Description of drawings
Fig. 1 is the utility model structured flowchart;
Fig. 2 is the utility model CPU electrical schematic diagram;
Fig. 3 is the utility model AD converter electrical schematic diagram;
Fig. 4 is the utility model DA converter electrical schematic diagram;
Fig. 5 is the utility model VI converter electrical schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
To choose model be STC12C5608AD to CPU in the present embodiment, and it is ADS1110 that AD converter is chosen model, and it is 24LC02 that memory is chosen model, and it is TLC5615 that the DA converter is chosen model, and it is LM385 that the VI converter is chosen model;
As shown in Figure 1, comprise water level signal input resistance, frequency feedback input resistance, frequency conversion fault input resistance, AD converter, CPU, memory, display screen, keyboard, DA converter and VI converter; Shown in Fig. 2,3,4,5, the water level signal input resistance is connected the input V of AD converter with the frequency feedback input resistance
IN+, the output V of AD converter
IN-The input P1.3 that connects CPU, frequency conversion fault input resistance connects the input P1.4 of CPU, keyboard connects the input P2.1 of CPU, P2.0, P1.7 and P1.6, the T1OUT of the demonstration output STC232 of CPU connects the COMPIN2 of PC, the demonstration output STC232's of CPU, R1IN connects the COMPIN3 of PC, PC connects the input of display, the output P2.4 of CPU connects the input DIN of DA converter, the output P3.4 of CPU and P3.5 be input SCL and the SDA of connected storage respectively, and the output OUT of DA converter connects input 3 pins of VI converter.
Claims (1)
1. a vapour stove level adjuster is characterized in that: comprise water level signal input resistance, frequency feedback input resistance, frequency conversion fault input resistance, AD converter, CPU, memory, display screen, keyboard, DA converter and VI converter; The water level signal input resistance is connected the input of AD converter with the frequency feedback input resistance, the output of AD converter connects one of them input of CPU, frequency conversion fault input resistance connects one of them input of CPU, keyboard connects one of them input of CPU, the output of CPU connects respectively the input of input, DA converter and the memory of display screen, and the output of DA converter connects the input of VI converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625320 CN202915341U (en) | 2012-11-23 | 2012-11-23 | Steam furnace water level accommodometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625320 CN202915341U (en) | 2012-11-23 | 2012-11-23 | Steam furnace water level accommodometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202915341U true CN202915341U (en) | 2013-05-01 |
Family
ID=48163653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220625320 Expired - Fee Related CN202915341U (en) | 2012-11-23 | 2012-11-23 | Steam furnace water level accommodometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202915341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456522A (en) * | 2013-09-24 | 2015-03-25 | 宝山钢铁股份有限公司 | Multi-fired boiler steam drum water level deviation adjustment method |
-
2012
- 2012-11-23 CN CN 201220625320 patent/CN202915341U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456522A (en) * | 2013-09-24 | 2015-03-25 | 宝山钢铁股份有限公司 | Multi-fired boiler steam drum water level deviation adjustment method |
| CN104456522B (en) * | 2013-09-24 | 2016-06-01 | 宝山钢铁股份有限公司 | Multi fuel boiler drum level bias adjustment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20151123 |