CN2932791Y - Programmable temperature measurement brake screen - Google Patents
Programmable temperature measurement brake screen Download PDFInfo
- Publication number
- CN2932791Y CN2932791Y CN 200620035207 CN200620035207U CN2932791Y CN 2932791 Y CN2932791 Y CN 2932791Y CN 200620035207 CN200620035207 CN 200620035207 CN 200620035207 U CN200620035207 U CN 200620035207U CN 2932791 Y CN2932791 Y CN 2932791Y
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- China
- Prior art keywords
- temperature
- programmable
- screen
- temperature measurement
- logic controller
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- Expired - Fee Related
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Abstract
The utility model discloses a programmable temperature measurement brake control panel, comprising one or a plurality of temperature sensor, a programmable control device and a touch screen, wherein the analog signal output by the temperature sensor is communicated with the input unit of the programmable control device through the temperature measurement device, the programmable control device is communicated with the touch screen through a RS-232 cable. The programmable control device will display the temperature and alarm/closing down message and send the alarm/closing down signal to the supervisory computer when the temperature of the measuring point exceeds the upper/top limit of the temperature, and the supervisory computer will take measures of cooling/braking. The utility model has the advantages that it can continuously monitor the measuring points in the main factory building which are integrated in physical location and large in quantity using integrated procedure parameters. Further, the utility model has low cost, high reliability and visual and convenient operation.
Description
Technical field
The utility model relates to a kind of generating set temperature measurement and control instrument, particularly relates to a kind of programmable speed testing braking screen.
Background technology
Generating set is a kind of power equipment of a large amount of heatings, parts such as stator coil, thrust bearing, guide bearing can produce a large amount of heat energy, as detect and control the temperature rise of each critical piece of generating set untimelyly, this not only can cause the unit fault, burn out generating set, even also can cause disaster accident, power plant's property and personnel's life security are constituted significant threat.Therefore Detection ﹠ Controling systems such as unit temperature, pressure, position, electric weight have all been set up in each power station at present, but too dispersion, cost that existing system has are higher, and then information indicating that has and parameter are provided with directly perceived inadequately, convenient.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of programmable temp testing braking screen is provided, this system adopts the procedure parameter continuous monitoring of concentrating to the measuring point that some physical locations in the main power house are concentrated relatively, quantity is many, not only can save cost, and the reliability height, the operation intuitive and convenient.
Goal of the invention of the present utility model is achieved through the following technical solutions: programmable temp testing braking screen, comprise one or more temperature sensors, Programmable Logic Controller, touch-screen, the analog quantity of temperature sensor output is connected to the input unit of Programmable Logic Controller through temperature measuring equipment, and Programmable Logic Controller is connected and swap data by the RS-232 cable with touch-screen.Wherein, the data owner of exchange will comprise ceiling temperature, upward ceiling temperature, thermometric line broken circuit detect instruction, the thermometric line short detects instruction.
When the measuring point temperature surpassed ceiling temperature, Programmable Logic Controller sent the warning message in the viewing area of touch-screen, and sends alarm signal by its output unit to host computer, takes cooling measure by host computer.
When the measuring point temperature surpassed last ceiling temperature, Programmable Logic Controller sent the shutdown message in the viewing area of touch-screen, and sends stopping signal by its output unit to host computer, takes the shutdown measure by host computer.
Described temperature measuring equipment comprises an A/D converter, a thermometric line broken circuit/short-circuit detecting unit, A/D converter, thermometric line broken circuit/short-circuit detecting unit all are connected with temperature sensor, thermometric line broken circuit/the output of short-circuit detecting unit is connected with the input of A/D converter, and the function conversion of temperature measuring equipment is by Controlled by Programmable Controller.
Temperature sensor is a thermo-sensitive resistor.
The course of work of the present utility model roughly is: temperature sensor is placed on the place that stator coil etc. need carry out temperature monitoring and control, the output of temperature sensor is connected to the A/D converter of temperature measuring equipment, the analog quantity that A/D converter is exported temperature sensor is converted to the discernible digital quantity of Programmable Logic Controller and is input to the input unit of Programmable Logic Controller, the CPU of Programmable Logic Controller under program control, read in these digital quantities and with the ceiling temperature that sets in advance, last ceiling temperature is compared, if the Current Temperatures of certain point for measuring temperature is higher than its default ceiling temperature, Programmable Logic Controller is sent to this temperature value on the one hand and shows on the touch-screen and prompting warning message, by its output unit alarm signal is sent to host computer on the other hand, unit is implemented cooling control by host computer.When if the Current Temperatures of certain point for measuring temperature is higher than its default last ceiling temperature; Programmable Logic Controller is sent to this temperature value on the one hand and shows on the touch-screen and prompting shutdown message; also stopping signal is sent to host computer on the other hand, unit is implemented to shut down control by host computer by its output unit.
Operating personnel can be by touch-screen one by one or the ceiling temperature of each point for measuring temperature of batch setting, go up ceiling temperature, and its setting up procedure can carry out according to the prompting on the touch-screen, the operation intuitive and convenient.
Operating personnel can assign other instruction by touch-screen, and as detecting whether the thermometric circuit opens circuit or short circuit etc., its operating process can be carried out according to the prompting on the touch-screen, operates same intuitive and convenient.
Advantage of the present utility model is: can adopt the procedure parameter continuous monitoring of concentrating to the measuring point that some physical locations in the main power house are concentrated relatively, quantity is many, not only can save cost, and reliability height, operation intuitive and convenient.
Description of drawings
Fig. 1 composition frame chart of the present utility model
Fig. 2 main control process flow figure of the present utility model
Embodiment
Further describe the technical solution of the utility model below in conjunction with accompanying drawing: as Fig. 1, programmable temp testing braking screen, comprise two temperature sensors, Programmable Logic Controller, touch-screen, the analog quantity of temperature sensor output is connected to the input unit of Programmable Logic Controller through temperature measuring equipment, and Programmable Logic Controller is connected and swap data by the RS-232 cable with touch-screen.
See Fig. 1 equally, temperature measuring equipment comprises an A/D converter and thermometric line broken circuit or short-circuit detecting unit, A/D converter all is connected with temperature sensor with thermometric line broken circuit/short-circuit detecting unit, thermometric line broken circuit/the output of short-circuit detecting unit is connected with the input of A/D converter, and the function conversion of temperature measuring equipment is by Controlled by Programmable Controller.
Fig. 2 is main control process flow figure of the present utility model.Find out among the figure; the CPU operation of Programmable Logic Controller is stored in the monitoring program in the memory; the temperature of each point for measuring temperature of circulatory monitoring; and with the ceiling temperature that sets in advance; if the Current Temperatures of certain point for measuring temperature is higher than its default ceiling temperature; Programmable Logic Controller is sent to this temperature value on the one hand and shows on the touch-screen and prompting warning message; by its output unit alarm signal is sent to host computer on the other hand; by host computer unit is implemented cooling control; next compare with last ceiling temperature; if the Current Temperatures of certain point for measuring temperature is higher than its default last ceiling temperature; Programmable Logic Controller is sent to this temperature value on the one hand and shows on the touch-screen and prompting shutdown message; also stopping signal is sent to host computer on the other hand by its output unit; by host computer unit is implemented to shut down control, so all points for measuring temperature of circulatory monitoring.
Claims (3)
1, programmable temp testing braking screen, comprise one or more temperature sensors, Programmable Logic Controller, touch-screen, it is characterized in that: the analog quantity of temperature sensor output is connected to the input unit of Programmable Logic Controller through temperature measurement module, Programmable Logic Controller is connected and swap data by the RS-232 cable with touch-screen, and wherein Jiao Huan data comprise ceiling temperature, upward ceiling temperature, thermometric line broken circuit detect instruction, the thermometric line short detects instruction.
2, programmable temp testing braking screen according to claim 1, it is characterized in that: described temperature measurement module comprises an A/D converter, thermometric line broken circuit and short-circuit detecting unit, A/D converter, thermometric line broken circuit and short-circuit detecting unit all are connected with temperature sensor, the output of thermometric line broken circuit and short-circuit detecting unit is connected with the input of A/D converter, and the function conversion of temperature measurement module is by Controlled by Programmable Controller.
3, programmable temp testing braking screen according to claim 1, it is characterized in that: temperature sensor is a thermo-sensitive resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620035207 CN2932791Y (en) | 2006-08-08 | 2006-08-08 | Programmable temperature measurement brake screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620035207 CN2932791Y (en) | 2006-08-08 | 2006-08-08 | Programmable temperature measurement brake screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2932791Y true CN2932791Y (en) | 2007-08-08 |
Family
ID=38349282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620035207 Expired - Fee Related CN2932791Y (en) | 2006-08-08 | 2006-08-08 | Programmable temperature measurement brake screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2932791Y (en) |
-
2006
- 2006-08-08 CN CN 200620035207 patent/CN2932791Y/en not_active Expired - Fee Related
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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: 20070808 Termination date: 20100808 |