CN201464083U

CN201464083U - Thermocouple detection device

Info

Publication number: CN201464083U
Application number: CN2009201330380U
Authority: CN
Inventors: 贲克锡; 周健
Original assignee: Dongguan Hengli Haide Precision Machinery Manufacturing Factory
Current assignee: Dongguan Hengli Haide Precision Machinery Manufacturing Factory
Priority date: 2009-06-22
Filing date: 2009-06-22
Publication date: 2010-05-12
Anticipated expiration: 2019-06-22

Abstract

The utility model provides a thermocouple detection device which mainly comprises an execution device, an operation keyboard, a display, an electric cabinet provided with a controllable program device and a microcomputer, and an upper cover, wherein the execution device is formed by an ignition platform, a flame temperature execution device and a thermocouple detection execution action mechanism which can realize the whole process that a thermocouple contacts or separates from the flame at set temperature through an execution cylinder; all the test parameters are displayed on the display by a data acquisition module through the microcomputer; and the operation keyboard realizes human-computer interface operation, and at the level, an operator can acquire and monitor the detection data through clicking a menu. Therefore, the thermocouple detection device highlights convenience, high efficiency and accuracy of the test.

Description

A kind of thermopair pick-up unit

Affiliated technical field

A kind of pick-up unit is meant a kind of thermopair safety detection device that is used for gas kitchen ranges especially.

Background technology

Thermopair is the key components and parts that is exclusively used in flame detection in the gas-cooker; mainly be whether the monitoring gas combustion range ignition is successful; flame whether extinguish by accident in the burning use; take place if any above-mentioned fortuitous event; then thermopair transmits signal and gives the gas-cooker control system, sends the solenoid valve that Gas Pipe is given in instruction again by control system, makes the closed electromagnetic valve combustion gas; gas leakage can be avoided, user's the security of the lives and property can be protected reliably.Therefore the relationship between quality of thermopair is to the quality of whole gas-cooker, and mass property how to control thermopair has become the problem that each gas-cooker manufacturer, thermopair manufacturer need solve.

Thermopair is that the metallic combination by two kinds of unlike materials forms, the temperature characterisitic difference of these two kinds of metals, just under identical state of temperature, different directions can take place and flow in the charged ion of two kinds of metals, thereby can produce an electromotive force at two metal two ends, the also high thermoelectrical potential of so-called thermoelectrical potential, temperature is also big, and just thermoelectrical potential is with the linear variation of temperature.

The thermopair checkout equipment flame temperature that current gas-cooker manufacturer uses can not be regulated, flame temperature can not be monitored in real time, the flame variation of temperature is very big to the thermoelectric potential influence of thermopair in test process, can cause detected thermoelectrical potential and real data to differ greatly like this, the data that test out can not be made accurate judgement to the thermopair performance, so that erroneous judgement occurs.Each manufacturer of gas-cooker, thermopair manufacturer are also at the test condition that constantly improves product at present, buy and made by oneself checkout equipment, but these equipment all adopt simple instrument and meter to combine, and the test and appraisal data have the manually-operated record fully, detection efficiency is very low, and detect data and influenced by subjective factor, data accuracy is very inaccurate.

In view of this, be necessary to design a kind of thermopair device for detecting performance that is used for gas-cooker in fact, to address the above problem.

Novel content

The utility model purpose is to provide a kind of thermopair pick-up unit, by the actuating unit that adopts pneumatic element to constitute, the flame all processes worked, breaks away from by the realization thermopair in the flame of design temperature, by micro computer test circuit acquisition system data, realize man-machine interface operation flexibly, to guarantee thermopair Performance Detection accuracy.

For achieving the above object, be achieved by the following technical programs:

The utility model provides a kind of thermopair pick-up unit, mainly comprise actuating unit, operation keyboard, display screen, the electric cabinet of may command programmer and micro computer is housed, last cover, described actuating unit is by ignition platform, described ignition platform top is provided with port, the galvanic couple of holding that port top has the flame temperature sensor that is fixed on electric cabinet and is positioned at ignition platform one side is carried out actuating mechanism and is formed, actuating mechanism realizes thermopair contact flame by the craspedodrome cylinder, break away from flame, just can realize to-and-fro movement by cylinder like this, thereby drive right galvanic couple to-and-fro movement, realize thermopair contact flame, break away from the action of flame all processes.

By operation interface, press ignition key, flame ignition, calibration flame (flame envelope) temperature is set heat time heating time, cool time; Thermopair is installed on the actuating unit by locating piece, connects on request; Press feeler switch, make craspedodrome cylinder running fix part in the actuating unit by programmable control unit, thermopair is near flame, and the end places flame to heat, and micro computer picks up counting simultaneously, and micro computer latchs the thermoelectrical potential record of actual measurement automatically behind the certain hour; After thermopair continues heating; the craspedodrome cylinder sets parameter by programmable control unit in the actuating unit; the thermopair end is returned automatically; break away from flame; micro computer picks up counting simultaneously; after treating certain hour; system latchs the thermoelectrical potential record of actual measurement automatically. perseveration like this; as accident extinguishing; thermopair just can carry out information feedback; realize that by micro computer automatic source of the gas closes, produce safety protection function. this actuating unit also can be according to the installation dimension of thermopair with respect to regulating before and after the heating location, by regulating the setting that can realize multiple parameters simultaneously.

All test parameters are by micro computer, by data acquisition module with data transmission to display screen, adopt management software to realize the man-machine interface operation, the operator can realize detecting the collection and the monitoring of data by clicking menu in this aspect.With heating-up temperature, thermopair also press, detection time real-time displayed record, generate heating-up temperature, thermocouple voltages change curve automatically with detection time; Automatically generate thermoelectrical potential, time, temperature data form; The thermoelectrical potential of curve each point setting-up time is as requested put and is inquired about and show corresponding data.And test data can store as requested, has power down and do not lose defencive function.This checkout equipment has corresponding external data delivery outlet, and the user can extract by means such as printings and prestore or the measured data curve in case of necessity.The operator can realize detecting the collection and the monitoring of data by clicking menu in this aspect, has given prominence to convenience, the high efficiency of test.Thus, can efficiently and effectively judge just by this equipment whether thermopair satisfies the requirement of standard performance.

The utility model compared with prior art, by simple actuating unit just can realize accurately, whether efficient detection goes out the every performance of thermopair qualified.

Description of drawings

Fig. 1 is a kind of thermopair pick-up unit schematic isometric of the present utility model;

Fig. 2 is a kind of thermopair pick-up unit actuating unit schematic isometric of the present utility model.

The utility model:

The 1-actuating unit, 10-holder, 11-fixed mount, the 12-locking knob, 13-stationary fixture 14-temperature-sensitive sticker, 15-locating piece, the 16-pin of lighting a fire, 17-thermopair, 18-craspedodrome cylinder 19-data acquisition module, the 20-ignition platform, the 21-port, 22-regulates and cuts down, 23-air intake opening 2-operation keyboard, 3-display screen, 4-electric cabinet, the last cover of 40-, 41-watch window 5-thermopair pick-up unit

Specific embodiment

For making above-mentioned technology of the present utility model and architectural feature can further allow the person skilled in the art understand, accompanying drawing under cooperating is further described the utility model with a specific embodiment.

As Fig. 1, shown in 2, a kind of thermopair pick-up unit 5, mainly comprise actuating unit 1, operation keyboard 2, display screen 3, the electric cabinet 4 of may command programmer and micro computer is housed, last cover 40. actuating units 1 are as for set the going up in the cover 40 of pick-up unit, and be provided with a watch window 41, can observe actuating unit. this actuating unit 1 is by ignition platform 20, flame temperature sensor 14, thermopair is carried out actuating mechanism, thermoelectrical potential data acquisition module 19 is formed, described ignition platform 20 upper ends offer port 21, described port 21 tops are installed with at the flame temperature sensor 14 of electric cabinet 4 and are positioned at thermopair 17 executing mechanisms of ignition platform 20 1 sides, and its executing mechanism is finished by craspedodrome cylinder 18; Described thermopair 17 and craspedodrome cylinder 18 are fixed on stationary fixture 13, and stationary fixture 13 sides are fastened on the fixed mount 10 of " L " shape; Simultaneously be provided with flame variable valve 22 and air intake opening 23 in ignition platform 20 lower bottom parts, be provided with the igniting pin of lighting for its automatic gas 16 near port 21 end faces of upper end, temperature-sensitive sticker 14 is fixing by locking turn-knob 12 by a fixed mount 11, wherein flame can be approached in an end, the temperature when burning with flame detection; Described thermopair is carried out actuating mechanism, be to wear on the shank that is fixed in stationary fixture 13 by promoting the circulation of qi cylinder 18 always, and a positioning block 15 is arranged in craspedodrome cylinder 18 action part devices, the thermopair 17 that detects is fixed on the locating piece, constitute and carry out actuating mechanism, just can realize the to-and-fro movement of locating piece 15 like this by craspedodrome cylinder 18, thereby drive thermopair 17 to-and-fro movements, realize thermopair 17 contact flames, break away from the action of flame all processes, simultaneously be provided with data acquisition module 19 away from flame end, so that data output in thermopair 17.

By the operation keyboard 2 of operation interface, press ignition key, flame ignition, calibration flame (flame envelope) temperature is about 600～700 ℃; Setting heat time heating time is 10s (time can be set arbitrarily), 1.5min cool time (time can be set arbitrarily); Thermopair is installed on the actuating unit 1, connects line on request; Press feeler switch, by programmable control unit (PLC), make the action of craspedodrome cylinder, the about 3～5mm in thermopair end picks up counting when placing the flame heating, and micro computer latchs the thermoelectrical potential record of actual measurement automatically when treating 10s (time can be set arbitrarily).After thermopair continued to be heated to 5min (time can be set arbitrarily), the craspedodrome cylinder returned automatically and makes thermopair break away from flame and pick up counting, and automatically the thermoelectrical potential record of actual measurement was latched when treating 1.5min (time can be set arbitrarily).So can realize action repeatedly, just can make ignition platform close source of the gas automatically in micro computer information feedback, realize safety protection function when having the accident extinguishing thermopair.And can regulate with respect to the heating location front and back according to the installation dimension of thermopair; Position with thermopair head 3～5mm when the execution actuating mechanism is implemented in the test thermal characteristics contacts flame; When the cold characteristic of test, thermopair is broken away from the flame natural cooling.

All test parameters are by the micro computer in the electric cabinet 4, by data acquisition module with data transmission to display screen, adopt management software to realize the man-machine interface operation by operation keyboard, the operator can realize detecting the collection and the monitoring of data by clicking menu in this aspect.With real-time displayed record of heating-up temperature, thermocouple voltages, detection time, generate heating-up temperature, thermocouple voltages change curve automatically with detection time; Automatically generate thermoelectrical potential, time, temperature data form; The thermoelectrical potential of curve each point setting-up time is as requested put and is inquired about and show corresponding data.And test data can store as requested, has power down and do not lose defencive function.This checkout equipment has corresponding external data delivery outlet, and the user can extract by means such as printings and prestore or the measured data curve in case of necessity, thereby just can finish the thermopair Performance Detection fast and effectively.

Claims

1. thermopair pick-up unit, what refer more particularly to gas kitchen ranges holds the galvanic couple device for detecting performance, mainly comprise actuating unit, operation keyboard, display screen, the electric cabinet of may command programmer and micro computer, last cover are housed, it is characterized in that: actuating unit is by ignition platform, described ignition platform top is provided with port, the galvanic couple of holding that port top has the flame temperature sensor that is fixed on electric cabinet and is positioned at ignition platform one side is carried out actuating mechanism and is formed, and actuating mechanism is realized thermopair contact flame, broken away from flame by the craspedodrome cylinder.

2. a kind of thermopair pick-up unit as claimed in claim 1 is characterized in that: described thermopair and craspedodrome cylinder are fixed on the stationary fixture, and thermopair one end is between port and temperature-sensitive sticker, and the other end is provided with data acquisition module.

3. a kind of thermopair pick-up unit as claimed in claim 2 is characterized in that: described stationary fixture is connected with the holder of fixing " L " shape, and this holder is fixed on the electric cabinet.

4. a kind of thermopair pick-up unit as claimed in claim 1 is characterized in that: described temperature-sensitive sticker is fixed on the fixed mount of electric cabinet one side, and this fixed mount is provided with the fixing locking knob of adjusting temperature-sensitive sticker.

5. a kind of thermopair pick-up unit as claimed in claim 1 is characterized in that: described ignition platform bottom offers air intake opening, and this air intake opening upper end is equiped with the adjusting of regulating tolerance and cuts down.

6. a kind of thermopair pick-up unit as claimed in claim 1 is characterized in that: be provided with the igniting pin of lighting automatically near the described ignition platform port.