CN204731654U - Dual fail-safe heating system - Google Patents
Dual fail-safe heating system Download PDFInfo
- Publication number
- CN204731654U CN204731654U CN201520461014.3U CN201520461014U CN204731654U CN 204731654 U CN204731654 U CN 204731654U CN 201520461014 U CN201520461014 U CN 201520461014U CN 204731654 U CN204731654 U CN 204731654U
- Authority
- CN
- China
- Prior art keywords
- heating tube
- temp probe
- relay
- utility
- dual fail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a kind of dual fail-safe heating system, and particularly the temperature of cleaning machine, xeothermic equipment controls.The utility model comprises the first temp probe, first temp probe collection signal is to thermal module, thermal module signal control PLC controller, the output point of PLC connects auxiliary reclay, the coil of the connection terminal access heating tube AC relay of auxiliary reclay, the normally opened contact of heating tube AC relay connects heating tube, also comprise the second temp probe and treating apparatus, the inner one group of normally closed switch of second temp probe connection handling device, normally closed switch access heating tube AC relay.The utility model is rational in infrastructure easy to use, for heating tube plays dual fail-safe effect, provides good protective effect.
Description
Technical field
The utility model relates to a kind of dual fail-safe heating system, and particularly the temperature of cleaning machine, xeothermic equipment controls.
Background technology
The heating system of cleaning machine, xeothermic equipment is extremely important, needs highly stable and perfect high temperature protection function, but cleaning machine common at present, the equipment such as xeothermic lack and improves and effective high temperature protection function.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of dual fail-safe heating system for cleaning machine, the equipment such as xeothermic, effectively can play the effect of high temperature protection.
The utility model solves the dual fail-safe heating system that its technical matters adopts, comprise the first temp probe, first temp probe collection signal is to thermal module, thermal module signal control PLC controller, the output point of PLC connects auxiliary reclay, the coil of the connection terminal access heating tube AC relay of auxiliary reclay, the normally opened contact of heating tube AC relay connects heating tube, also comprise the second temp probe and treating apparatus, the inner one group of normally closed switch of second temp probe connection handling device, normally closed switch access heating tube AC relay.
Compared with original technology, the beneficial effect that the utility model has is:
Rational in infrastructure easy to use, for heating tube plays dual fail-safe effect, provide good protective effect.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In figure: 1, PLC; 2, thermal module; 3, treating apparatus; 4, the first temp probe; 5, the second temp probe; 6, auxiliary reclay; 7, AC relay; 8, normally closed switch.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Dual fail-safe heating system as shown in Figure 1, comprise the first temp probe, first temp probe collection signal is to thermal module 2, thermal module 2 signal control PLC controller 1, the output point of PLC 1 connects auxiliary reclay 6, the coil of the connection terminal access heating tube AC relay 7 of auxiliary reclay 6, the normally opened contact of heating tube AC relay 7 connects heating tube, also comprise the second temp probe 5 and treating apparatus 3, the inner one group of normally closed switch 8 of second temp probe 5 connection handling device, normally closed switch 8 accesses heating tube AC relay 7.
By the first temp probe 4 collection signal to thermal module 2,24V direct current is exported by the output point of PLC 1, as the enabling signal line of auxiliary reclay 6, after auxiliary reclay work, connection terminal is connected, A.C. contactor 7 coil is made to have 220V alternating current to pass through, A.C. contactor 7 adhesive, heating tube is started working.When detected temperatures is more than or equal to PLC 1 design temperature, PLC 1 no-output, thus A.C. contactor 7 is disconnected, heating tube quits work.
Second temp probe 5 collection signal also supplies treating apparatus 3 as input signal, and after detected temperatures is more than or equal to design temperature, the normally closed switch 8 for the treatment of apparatus disconnects, and cuts off A.C. contactor 7 start line, thus the defencive function that reaches a high temperature.When PLC 1 is not controlled, heavily protect as second.
Claims (1)
1. a dual fail-safe heating system, comprise the first temp probe, first temp probe collection signal is to thermal module, thermal module signal control PLC controller, the output point of PLC connects auxiliary reclay, the coil of the connection terminal access heating tube AC relay of auxiliary reclay, the normally opened contact of heating tube AC relay connects heating tube, it is characterized in that, also comprise the second temp probe and treating apparatus, the inner one group of normally closed switch of second temp probe connection handling device, normally closed switch access heating tube AC relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520461014.3U CN204731654U (en) | 2015-06-30 | 2015-06-30 | Dual fail-safe heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520461014.3U CN204731654U (en) | 2015-06-30 | 2015-06-30 | Dual fail-safe heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204731654U true CN204731654U (en) | 2015-10-28 |
Family
ID=54389990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520461014.3U Expired - Fee Related CN204731654U (en) | 2015-06-30 | 2015-06-30 | Dual fail-safe heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204731654U (en) |
-
2015
- 2015-06-30 CN CN201520461014.3U patent/CN204731654U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20200630 |