CN201927997U - Dryer temperature safety protection device - Google Patents
Dryer temperature safety protection device Download PDFInfo
- Publication number
- CN201927997U CN201927997U CN2011200062688U CN201120006268U CN201927997U CN 201927997 U CN201927997 U CN 201927997U CN 2011200062688 U CN2011200062688 U CN 2011200062688U CN 201120006268 U CN201120006268 U CN 201120006268U CN 201927997 U CN201927997 U CN 201927997U
- Authority
- CN
- China
- Prior art keywords
- electrothermal tube
- air fan
- temperature safety
- trip gear
- circuit breaker
- 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
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to the technical field of dryers, particularly relates to a dryer temperature safety protection device, which comprises a circuit breaker connected with a three-phase power supply, a tripping device, an electric heating tube, a drying air fan and a temperature controller. The output end of the circuit breaker is connected with the input end of the tripping device, the output end of the tripping device is connected with the electric heating tube, the drying air fan and the temperature controller, and the power supply connection part of the electric heating tube adopts temperature fuse connection. The dryer temperature safety protection device provided by the utility model can effectively improve safety protection effect, so as to avoid occurrence of safety accidents.
Description
Technical field:
The utility model relates to the drying machine technical field, relates in particular to drying machine temperature safety guard.
Background technology:
Drying machine is widely used in dry processing technique field of plastic cement and the dry field of some other heat.Existing drying machine, ac contactor contact glues extremely or blower fan breaks down when occurring in the control procedure, and electrothermal tube is when continuing heating, only can take place that alarm lamp is lighted or buzzer warning, yet machine also can continue heating, need manually shutdown, just can remove a hidden danger, do not have automatic safe newspaper protection unit.When drying machine breaks down and operator when being absent from the scene, because the lasting heating of electrothermal tube makes that easily plastic material caking or machine are on fire, cause the security incident of factory, lives and properties are caused great harm.
The utility model content:
The purpose of this utility model is to provide a kind of safeguard protection effect that can effectively improve at the deficiencies in the prior art, avoids taking place the drying machine temperature safety guard of security incident.
For achieving the above object, the utility model adopts following technical scheme:
Drying machine temperature safety guard; it comprises the circuit breaker that is connected in three phase mains; and comprise trip gear, electrothermal tube, drying air fan and thermostat; the output of described circuit breaker connects the input of trip gear; the output of trip gear connects electrothermal tube, drying air fan and thermostat respectively, and the power supply connecting portion of described electrothermal tube adopts Thermal Cutoffs to connect.
Described trip gear is the excitation release.
Described Thermal Cutoffs is the fuse of lead flake formula.
All be connected with A.C. contactor between the input of the output of described trip gear and electrothermal tube and drying air fan.
The utility model beneficial effect is: drying machine temperature safety guard described in the utility model; it comprises the circuit breaker that is connected in three phase mains; and comprise trip gear, electrothermal tube, drying air fan and thermostat; the output of described circuit breaker connects the input of trip gear; the output of trip gear connects electrothermal tube, drying air fan and thermostat respectively, and the power supply connecting portion of described electrothermal tube adopts Thermal Cutoffs to connect.Adopt the drying machine temperature safety guard of said structure; in the control procedure; utilize the output signal of the alarm point of thermostat to control the break-make of trip gear with the control circuit breaker; make that machine is out of service and play a protective role; when drying air fan or thermostat break down, and alarm point is not when having output signal, and the temperature of electrothermal tube continues to rise and fuses automatically until Thermal Cutoffs; do not cut off and can stop heating under the situation of circuit power yet, play a protective role.Therefore, drying machine temperature safety guard described in the utility model can effectively improve the safeguard protection effect, avoids taking place security incident.
Description of drawings:
Fig. 1 is a control principle schematic diagram of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
Drying machine temperature safety guard described in the utility model; it comprises the circuit breaker that is connected in three phase mains; and comprise trip gear 50, electrothermal tube, drying air fan and thermostat; the output of described circuit breaker connects the input of trip gear 50; the output of trip gear 50 connects electrothermal tube, drying air fan and thermostat respectively, and the power supply connecting portion of described electrothermal tube adopts Thermal Cutoffs 60 to connect.Preferably, described trip gear 50 is the excitation release.Preferably, described Thermal Cutoffs 60 is the fuse of lead flake formula.Preferably, all be connected with A.C. contactor between the input of the output of described trip gear 50 and electrothermal tube and drying air fan.In control system, utilize the output signal of the alarm point of thermostat to control the break-make that the excitation release is controlled circuit breaker.When the actual temperature 〉=design temperature of drying machine+alarm setting value, alarm point output, the excitation trip coil gets electric, the circuit breaker disjunction, machine is out of service to play a protective role.When drying air fan or thermostat break down; when alarm point does not have output signal; the temperature of electrothermal tube continues to rise; when temperature rises about 330 ℃ the time; the fuse of the lead flake formula of electrothermal tube; be automatically fusing of power supply wiring point (plumbous fusing point is 327 ℃), do not cut off under the situation of circuit power and also stop heating, play a protective role.
As shown in Figure 1, be control principle schematic diagram of the present utility model, its concrete control procedure is: open circuit breaker Q 1, open the S1 switch, A.C. contactor K1 gets electric, drying air fan M1 work, open the S2 switch, thermostat K3 gets electric, K1, the K3 closing of contact, and A.C. contactor K2 gets, electrothermal tube EH1 work, when temperature rose to design temperature, electrothermal tube EH1 stopped heating, so periodic duty.When the sticking death situation condition of ac contactor contact occurring, the uncontrollable A.C. contactor K2 outage of thermostat K3, this moment, electrothermal tube EH1 continued heating, temperature constantly raises, when the actual value 〉=design temperature of temperature+alarm setting value, the excitation trip coil gets electric, circuit breaker Q 1 disjunction.When drying air fan or thermostat fault caused temperature to continue to rise to 327 ℃, the Thermal Cutoffs 60 that connects electrothermal tube fused automatically, and electrothermal tube stops heating, plays a protective role.
In sum; drying machine temperature safety guard described in the utility model can guarantee that drying machine is occurring playing the safeguard protection effect when ac contactor contact glues extremely or drying air fan breaks down; avoid the drying machine electrothermal tube to continue to heat and cause security incident; can effectively improve the safeguard protection effect, avoid taking place security incident.
The above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (4)
1. drying machine temperature safety guard; it is characterized in that: it comprises the circuit breaker that is connected in three phase mains; and comprise trip gear (50), electrothermal tube, drying air fan and thermostat; the output of described circuit breaker connects the input of trip gear (50); the output of trip gear (50) connects electrothermal tube, drying air fan and thermostat respectively, and the power supply connecting portion of described electrothermal tube adopts Thermal Cutoffs (60) to connect.
2. drying machine temperature safety guard according to claim 1 is characterized in that: described trip gear (50) is the excitation release.
3. drying machine temperature safety guard according to claim 1 is characterized in that: described Thermal Cutoffs (60) is the fuse of lead flake formula.
4. according to each described drying machine temperature safety guard of claim 1 to 3, it is characterized in that: all be connected with A.C. contactor between the output of described trip gear (50) and the input of electrothermal tube and drying air fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200062688U CN201927997U (en) | 2011-01-10 | 2011-01-10 | Dryer temperature safety protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200062688U CN201927997U (en) | 2011-01-10 | 2011-01-10 | Dryer temperature safety protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201927997U true CN201927997U (en) | 2011-08-10 |
Family
ID=44431832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200062688U Expired - Fee Related CN201927997U (en) | 2011-01-10 | 2011-01-10 | Dryer temperature safety protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201927997U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945255A (en) * | 2017-02-07 | 2017-07-14 | 通鼎互联信息股份有限公司 | A kind of optical cable extruding machine feeding drying trip free device and control method |
| CN117232219A (en) * | 2023-07-27 | 2023-12-15 | 海目星 (江门) 激光智能装备有限公司 | Drying oven and control method thereof |
-
2011
- 2011-01-10 CN CN2011200062688U patent/CN201927997U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945255A (en) * | 2017-02-07 | 2017-07-14 | 通鼎互联信息股份有限公司 | A kind of optical cable extruding machine feeding drying trip free device and control method |
| CN117232219A (en) * | 2023-07-27 | 2023-12-15 | 海目星 (江门) 激光智能装备有限公司 | Drying oven and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Dongguan Shini Electrothermal Machinery Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20160110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |