CN204666272U - The two Thermistor Temperature Measurement system of a kind of flying dust warehouse - Google Patents
The two Thermistor Temperature Measurement system of a kind of flying dust warehouse Download PDFInfo
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- CN204666272U CN204666272U CN201520427651.9U CN201520427651U CN204666272U CN 204666272 U CN204666272 U CN 204666272U CN 201520427651 U CN201520427651 U CN 201520427651U CN 204666272 U CN204666272 U CN 204666272U
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Abstract
The two Thermistor Temperature Measurement system of a kind of flying dust warehouse, relate to technical field of electricity, comprise two and select rotary switch SA1, SA2, auxiliary reclay KA1, KA2, KA3, KA4, KA5, KA6, KA7, KA9, time delay to disconnect relay K T1, KT2, the first thermal resistance, the second thermal resistance, temperature transmitter TT; The signal output part of the first thermal resistance, the signal output part of the second thermal resistance are all connected with temperature transmitter TT.The utility model can according to the warm Resistance Fault situation of before measurement, and the other thermal resistance that automatically switches carries out thermometric, realizes the automatic switching function of thermometric thermal resistance.The ash silo temperature data obtained is more stable coherent, thermometric work can not be interrupted because of the replacing maintenance work of a thermal resistance fault and thermal resistance, the temperature data caused because of thermometric thermal resistance fault effectively can be avoided to make mistakes or lack, ensure that the stable continuation of thermometric.
Description
Technical field
The utility model relates to technical field of electricity, particularly relates to the two Thermistor Temperature Measurement automatic switching control circuit of a kind of garbage incinerating power plant flying dust warehouse.
Background technology
At present, thermometric is generally only carried out with a thermal resistance in the thermometric loop that flying dust warehouse is conventional, or uses two thermal resistances to carry out thermometric, and a thermometric one is monitored but do not have handoff functionality.When thermometric thermal resistance break down or thermometric punctual, will obtain the ash silo temperature data of mistake, process often causes certain economic loss not in time.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of thermometric two Thermistor Temperature Measurement system of flying dust warehouse accurately.
The purpose of this utility model is achieved in that the two Thermistor Temperature Measurement system of a kind of flying dust warehouse, comprises two and selects rotary switch SA1, SA2, auxiliary reclay KA1, KA2, KA3, KA4, KA5, KA6, KA7, KA9, time delay to disconnect relay K T1, KT2, the first thermal resistance, the second thermal resistance, temperature transmitter TT; Connect with the normally closed contact KA4-1 of auxiliary reclay KA4, the normally closed contact KA2-1 of auxiliary reclay KA2 in one end after the normally opened contact KA1-2 parallel connection of the normally closed contact KA9-1 of described auxiliary reclay KA9, the normally opened contact KA5-2 of auxiliary reclay KA5, auxiliary reclay KA1, the control coil of the other end after parallel connection and auxiliary reclay KA1 is composed in series the first branch road; The normally opened contact KA4-2 of described auxiliary reclay KA4 connects with the normally closed contact KA5-1 of auxiliary reclay KA5, the normally closed contact KA1-1 of auxiliary reclay KA1 with the one end after the normally opened contact KA2-2 parallel connection of auxiliary reclay KA2, and the control coil of the other end after parallel connection and auxiliary reclay KA2 is composed in series the second branch road; The normally opened contact of rotary switch SA1 is selected to be composed in series the 3rd branch road with two after described first branch road and the second branch circuit parallel connection; The normally closed contact series connection auxiliary reclay KA3 control coil of two selection rotary switch SA1; The control coil that the normally opened contact KA1-3 of described auxiliary reclay KA1 and time delay disconnect relay K T1 is composed in series the 4th branch road; The control coil that the normally opened contact KA2-3 of described auxiliary reclay KA2 and time delay disconnect relay K T2 is composed in series the 5th branch road; The 6th branch road is composed in series with the normally opened contact KA9-2 of auxiliary reclay KA9 after 4th branch road and the 5th branch circuit parallel connection; Normally closed contact KA5-3, the time delay of described auxiliary reclay KA5 disconnect the instantaneous make delay break contact KT1-1 of relay K T1, the control coil of auxiliary reclay KA4 is composed in series the 7th branch road; Normally closed contact KA4-3, the time delay of described auxiliary reclay KA4 disconnect the instantaneous make delay break contact KT2-1 of relay K T2, the control coil of auxiliary reclay KA5 is composed in series the 8th branch road; The 9th branch road is composed in series with the normally closed contact KA3-1 of auxiliary reclay KA3 after described 6th branch road, the 7th branch road, the 8th branch circuit parallel connection; The normally closed contact KA3-2 of described auxiliary reclay KA3, the normally opened contact KA1-4 of auxiliary reclay KA1 are composed in series the tenth branch road; The normally closed contact of rotary switch SA2 is selected to be composed in series the 11 branch road for normally opened contact KA3-4 and two of described auxiliary reclay KA3; Twelve earthly branches road is composed in series with the normally closed contact KA7-4 of auxiliary reclay KA7, the control coil of auxiliary reclay KA6 after tenth branch road and the 11 branch circuit parallel connection; The normally closed contact KA3-3 of described auxiliary reclay KA3, the normally opened contact KA2-4 of auxiliary reclay KA2, the normally closed contact KA6-4 of auxiliary reclay KA6, the control coil of auxiliary reclay KA7 are composed in series the 13 branch road; The normally opened contact of rotary switch SA2 side is selected to be connected between the normally opened contact KA2-4 of auxiliary reclay KA2 and the normally closed contact KA6-4 of auxiliary reclay KA6 for described two; Described 3rd branch road, the 9th branch road, twelve earthly branches road, the 13 branch circuit parallel connection; The signal output part of described first thermal resistance, the signal output part of the second thermal resistance are all connected with temperature transmitter TT, and the normal ON signal of fault of temperature transmitter TT is connected serially to the control coil of KA9.
Auxiliary reclay KA1, KA2 are respectively as the relaying of the automatic switchover of first, second thermal resistance, and KA1, KA2 are interlocked by normally closed contact KA2-1, KA1-1 each other; Auxiliary reclay KA3 is as transfer relay that is manual and automatic control circuit, and namely KA3 dead electricity connects automatic control loop by normally closed contact; Auxiliary reclay KA4, KA5 are respectively the failed trunk of the first and second thermal resistances, and KA4, KA5 are interlocked by normally closed contact KA5-3, KA4-3 each other; Auxiliary reclay KA6, KA7 are respectively as the thermometric loop break-make pilot relay of first, second thermal resistance, and KA6, KA7 are interlocked by normally closed contact KA7-4, KA6-4 each other; Auxiliary reclay KA9 is Reflector, the normal ON signal of fault of temperature transmitter TT is connected serially to the control coil of KA9, KA9 adhesive when a failure occurs; When hand/selection knob SA1 selects in automatic position automatically, KA3 coil losing electricity, automatic control loop obtains electric; Automatic control circuit is by the normally closed contact KA4-1 of KA4, and after KA4-1, the normally opened contact KA1-2 of normally opened contact KA5-2, KA1 of normally closed contact KA9-1, KA5 of KA9 in parallel, is finally connected serially to the control coil of KA1; Acting as of KA4-1 disconnects when the first thermal resistance breaks down with the control loop cutting off KA1 coil, if KA9-1 act as non-fault signal after being switched to automatic mode for the first time, adhesive connects the first thermal resistance loop to connect KA1 control loop default priority, acting as of KA5-2 connects the first thermal resistance measure loop when the second thermal resistance breaks down, and acting as of KA1-2 carries out self-insurance maintenance to KA1 coil after the first thermal resistance loop is connected; Automatic control circuit is by the normally closed contact KA5-1 of KA5, and after KA5-1, the normally opened contact KA2-2 of normally opened contact KA4-2, KA2 of KA4 in parallel, is finally connected serially to the control coil of KA2; Acting as of KA5-1 disconnects when the second thermal resistance breaks down with the control loop cutting off KA2 coil, acting as of KA4-2 connects the second thermal resistance measure loop when the first thermal resistance breaks down, and acting as of KA2-2 carries out self-insurance maintenance to KA2 coil after the first thermal resistance loop is connected; Control circuit is by the KA9-2 normal battle by KA9 after KA3 normally closed some KA3-1, thermal resistance break down then KA9-2 connect, when being chosen as the first thermal resistance if current circuit by KA1 often battle KA1-3 to activate the power-off delay relay KT1(time adjustable), current when being chosen as the second thermal resistance then by relay K A2 often battle KA2-3 to activate the power-off delay relay KT2(time adjustable), control circuit again respectively by instantaneous make delay break contact KT1-1, KT2-1 of KT1, KT2 to drive the control coil of KA4, KA5 respectively; Control circuit is connected after by normally closed contact KA3-2, KA3-3 of KA3 the normally opened contact KA2-4 of normally opened contact KA1-4, KA2 of KA1 respectively, the control coil of the KA6 that connects after KA1-4, the control coil of the KA7 that connects after KA2-4; KA1-4 act as when KA1 obtain electric after connect KA6 coil to connect the first Thermistor Temperature Measurement loop, KA2-4 act as when KA2 obtain electric after connect KA7 coil to connect the second Thermistor Temperature Measurement loop; When automatic switchover mode, if current selection first thermal resistance breaks down, then KT1 time delay terminal adhesive keep the corresponding time, in this time, KA4 coil obtains electric, KA4 obtains electric rear KA2 and obtains electric KA1 and disconnect, and finally connects the control coil of KA7 and disconnect KA6 control coil by KA1-4, KA2-4; In like manner, if current selection second thermal resistance breaks down, then KT2 time delay terminal adhesive keep the corresponding time, in this time, KA5 coil obtains electric, KA5 obtains electric rear KA1 and obtains electric KA2 and disconnect, and finally connects the control coil of KA6 and disconnect the control coil of KA7 by KA1-4, KA2-4.
The beneficial effects of the utility model are: manual switchover control circuit and automatic switching control circuit, and the thermometric thermal resistance after switching send output by temperature transmitter TT change.Can according to the warm Resistance Fault situation of before measurement, the other thermal resistance that automatically switches carries out thermometric, realizes the automatic switching function of thermometric thermal resistance.The ash silo temperature data obtained is more stable coherent, thermometric work can not be interrupted because of the replacing maintenance work of a thermal resistance fault and thermal resistance, the temperature data caused because of thermometric thermal resistance fault can be effectively avoided to make mistakes or lack, ensure that the stable continuation of thermometric, and economical and effective is easy to operate.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, the two Thermistor Temperature Measurement system of flying dust warehouse, comprises two and selects rotary switch SA1, SA2, auxiliary reclay KA1, KA2, KA3, KA4, KA5, KA6, KA7, KA9, time delay to disconnect relay K T1, KT2, the first thermal resistance, the second thermal resistance, temperature transmitter TT.
Connect with the normally closed contact KA4-1 of auxiliary reclay KA4, the normally closed contact KA2-1 of auxiliary reclay KA2 in one end after the normally opened contact KA1-2 parallel connection of the normally closed contact KA9-1 of auxiliary reclay KA9, the normally opened contact KA5-2 of auxiliary reclay KA5, auxiliary reclay KA1, the control coil of the other end after parallel connection and auxiliary reclay KA1 is composed in series the first branch road; The normally opened contact KA4-2 of described auxiliary reclay KA4 connects with the normally closed contact KA5-1 of auxiliary reclay KA5, the normally closed contact KA1-1 of auxiliary reclay KA1 with the one end after the normally opened contact KA2-2 parallel connection of auxiliary reclay KA2, and the control coil of the other end after parallel connection and auxiliary reclay KA2 is composed in series the second branch road; The normally opened contact of rotary switch SA1 is selected to be composed in series the 3rd branch road with two after described first branch road and the second branch circuit parallel connection; The normally closed contact series connection auxiliary reclay KA3 control coil of two selection rotary switch SA1.
The control coil that the normally opened contact KA1-3 of auxiliary reclay KA1 and time delay disconnect relay K T1 is composed in series the 4th branch road; The control coil that the normally opened contact KA2-3 of described auxiliary reclay KA2 and time delay disconnect relay K T2 is composed in series the 5th branch road; The 6th branch road is composed in series with the normally opened contact KA9-2 of auxiliary reclay KA9 after 4th branch road and the 5th branch circuit parallel connection; Normally closed contact KA5-3, the time delay of described auxiliary reclay KA5 disconnect the instantaneous make delay break contact KT1-1 of relay K T1, the control coil of auxiliary reclay KA4 is composed in series the 7th branch road; Normally closed contact KA4-3, the time delay of described auxiliary reclay KA4 disconnect the instantaneous make delay break contact KT2-1 of relay K T2, the control coil of auxiliary reclay KA5 is composed in series the 8th branch road; The 9th branch road is composed in series with the normally closed contact KA3-1 of auxiliary reclay KA3 after described 6th branch road, the 7th branch road, the 8th branch circuit parallel connection.
The normally closed contact KA3-2 of auxiliary reclay KA3, the normally opened contact KA1-4 of auxiliary reclay KA1 are composed in series the tenth branch road; The normally closed contact of rotary switch SA2 is selected to be composed in series the 11 branch road for normally opened contact KA3-4 and two of described auxiliary reclay KA3; Twelve earthly branches road is composed in series with the normally closed contact KA7-4 of auxiliary reclay KA7, the control coil of auxiliary reclay KA6 after tenth branch road and the 11 branch circuit parallel connection.
The normally closed contact KA3-3 of auxiliary reclay KA3, the normally opened contact KA2-4 of auxiliary reclay KA2, the normally closed contact KA6-4 of auxiliary reclay KA6, the control coil of auxiliary reclay KA7 are composed in series the 13 branch road; The normally opened contact of rotary switch SA2 side is selected to be connected between the normally opened contact KA2-4 of auxiliary reclay KA2 and the normally closed contact KA6-4 of auxiliary reclay KA6 for described two.
3rd branch road, the 9th branch road, twelve earthly branches road, the 13 branch circuit parallel connection.
The signal output part of the first thermal resistance, the signal output part of the second thermal resistance are all connected with temperature transmitter TT, and the normal ON signal of fault of temperature transmitter TT is connected serially to the control coil of KA9.
Claims (1)
1. the two Thermistor Temperature Measurement system of flying dust warehouse, is characterized in that: comprise two and select rotary switch SA1, SA2, auxiliary reclay KA1, KA2, KA3, KA4, KA5, KA6, KA7, KA9, time delay to disconnect relay K T1, KT2, the first thermal resistance, the second thermal resistance, temperature transmitter TT;
Connect with the normally closed contact KA4-1 of auxiliary reclay KA4, the normally closed contact KA2-1 of auxiliary reclay KA2 in one end after the normally opened contact KA1-2 parallel connection of the normally closed contact KA9-1 of described auxiliary reclay KA9, the normally opened contact KA5-2 of auxiliary reclay KA5, auxiliary reclay KA1, the control coil of the other end after parallel connection and auxiliary reclay KA1 is composed in series the first branch road; The normally opened contact KA4-2 of described auxiliary reclay KA4 connects with the normally closed contact KA5-1 of auxiliary reclay KA5, the normally closed contact KA1-1 of auxiliary reclay KA1 with the one end after the normally opened contact KA2-2 parallel connection of auxiliary reclay KA2, and the control coil of the other end after parallel connection and auxiliary reclay KA2 is composed in series the second branch road; The normally opened contact of rotary switch SA1 is selected to be composed in series the 3rd branch road with two after described first branch road and the second branch circuit parallel connection; The normally closed contact series connection auxiliary reclay KA3 control coil of two selection rotary switch SA1;
The control coil that the normally opened contact KA1-3 of described auxiliary reclay KA1 and time delay disconnect relay K T1 is composed in series the 4th branch road; The control coil that the normally opened contact KA2-3 of described auxiliary reclay KA2 and time delay disconnect relay K T2 is composed in series the 5th branch road; The 6th branch road is composed in series with the normally opened contact KA9-2 of auxiliary reclay KA9 after 4th branch road and the 5th branch circuit parallel connection; Normally closed contact KA5-3, the time delay of described auxiliary reclay KA5 disconnect the instantaneous make delay break contact KT1-1 of relay K T1, the control coil of auxiliary reclay KA4 is composed in series the 7th branch road; Normally closed contact KA4-3, the time delay of described auxiliary reclay KA4 disconnect the instantaneous make delay break contact KT2-1 of relay K T2, the control coil of auxiliary reclay KA5 is composed in series the 8th branch road; The 9th branch road is composed in series with the normally closed contact KA3-1 of auxiliary reclay KA3 after described 6th branch road, the 7th branch road, the 8th branch circuit parallel connection;
The normally closed contact KA3-2 of described auxiliary reclay KA3, the normally opened contact KA1-4 of auxiliary reclay KA1 are composed in series the tenth branch road; The normally closed contact of rotary switch SA2 is selected to be composed in series the 11 branch road for normally opened contact KA3-4 and two of described auxiliary reclay KA3; Twelve earthly branches road is composed in series with the normally closed contact KA7-4 of auxiliary reclay KA7, the control coil of auxiliary reclay KA6 after tenth branch road and the 11 branch circuit parallel connection;
The normally closed contact KA3-3 of described auxiliary reclay KA3, the normally opened contact KA2-4 of auxiliary reclay KA2, the normally closed contact KA6-4 of auxiliary reclay KA6, the control coil of auxiliary reclay KA7 are composed in series the 13 branch road; The normally opened contact of rotary switch SA2 side is selected to be connected between the normally opened contact KA2-4 of auxiliary reclay KA2 and the normally closed contact KA6-4 of auxiliary reclay KA6 for described two;
Described 3rd branch road, the 9th branch road, twelve earthly branches road, the 13 branch circuit parallel connection;
The signal output part of described first thermal resistance, the signal output part of the second thermal resistance are all connected with temperature transmitter TT, and the normal ON signal of fault of temperature transmitter TT is connected serially to the control coil of KA9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520427651.9U CN204666272U (en) | 2015-06-19 | 2015-06-19 | The two Thermistor Temperature Measurement system of a kind of flying dust warehouse |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520427651.9U CN204666272U (en) | 2015-06-19 | 2015-06-19 | The two Thermistor Temperature Measurement system of a kind of flying dust warehouse |
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| CN204666272U true CN204666272U (en) | 2015-09-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260393A (en) * | 2020-10-20 | 2021-01-22 | 新誉庞巴迪信号系统有限公司 | Automatic switching circuit and method for cold standby redundancy system |
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2015
- 2015-06-19 CN CN201520427651.9U patent/CN204666272U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260393A (en) * | 2020-10-20 | 2021-01-22 | 新誉庞巴迪信号系统有限公司 | Automatic switching circuit and method for cold standby redundancy system |
| CN112260393B (en) * | 2020-10-20 | 2022-06-17 | 新誉庞巴迪信号系统有限公司 | Automatic switching circuit and method for cold standby redundancy system |
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