CN204300699U - The control pressurer system of electrified heating device control cabinet - Google Patents
The control pressurer system of electrified heating device control cabinet Download PDFInfo
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- CN204300699U CN204300699U CN201420761688.0U CN201420761688U CN204300699U CN 204300699 U CN204300699 U CN 204300699U CN 201420761688 U CN201420761688 U CN 201420761688U CN 204300699 U CN204300699 U CN 204300699U
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Abstract
The utility model relates to a kind of control pressurer system of electrified heating device control cabinet, comprise sledge seat (1) and electric heater control cabinet (38), sledge seat (1) is provided with pipeline (2), pipeline (2) is provided with electric heater (3) successively from entrance point to outlet end, integrative temperature transmitter one (4), safety cut-off valve (5), monitoring pressure governor (6) and work pressure governor (7), the pipeline of work pressure governor (7) outlet end is provided with pressure gauge two (12), pressure transmitter (13), bimetallic thermometer two (14), integrative temperature transmitter two (15), choke stop evacuation valve two (16) and manual ball valve two (17), PLC (22) and power of controlled silicon regulator (23) is provided with in electric heater control cabinet (38), the utility model can realize 0 ~ 100% stepless power and export and temperature regulating and controlling, and the controllable parameter of electric heater control cabinet front display is many, can provide good monitored picture.
Description
[technical field]
The utility model relates to gas pressure control technique field, specifically a kind of control pressurer system of electrified heating device control cabinet.
[background technique]
In prior art, general employing temp controller and solid-state relay in electric heater control cabinet, or adopt temp controller and silicon controlled control mode to carry out exporting natural pressure Force control system the adjustment of medium temperature.Wherein, in the control mode of temp controller and solid-state relay, to the control of the heating power of heater, be or 100% full power input, excise power supply completely, adopt very large on impact mechanical life of equipment in this way, well can not realize the stepless temperature-regulating of 0 ~ 100%.And traditional temp controller and silicon controlled control mode, although only a few can realize the stepless temperature-regulating of 0 ~ 100%, but the controllable parameter of display is little, good monitored picture can not be provided, inconvenience is brought to the use of related domain, if can the problems referred to above be overcome, will have very important significance.
[model utility content]
The purpose of this utility model is exactly the control pressurer system that will solve above-mentioned deficiency and provide a kind of electrified heating device control cabinet, 0 ~ 100% stepless power that realizes that can not only be stable exports and temperature regulating and controlling, and the controllable parameter of electric heater control cabinet front display is many, good monitored picture can be provided, degree of regulation is high, good stability, Safety performance is high.
Design a kind of control pressurer system of electrified heating device control cabinet for achieving the above object, comprise sledge seat 1 and electric heater control cabinet 38, described sledge seat 1 is provided with pipeline 2, described pipeline 2 is provided with electric heater 3 from entrance point successively to outlet end, integrative temperature transmitter 1, safety cut-off valve 5, monitoring pressure governor 6 and work pressure governor 7, pipeline between described integrative temperature transmitter 1 and safety cut-off valve 5 is equipped with choke stop evacuation valve 1, manual ball valve 1, pressure gauge 1 and bimetallic thermometer 1, the outlet end of described pressure gauge 1 connects the entrance point of bimetallic thermometer 1, the outlet end of described bimetallic thermometer 1 connects the entrance point of safety cut-off valve 5, the pipeline of described work pressure governor 7 outlet end is provided with pressure gauge 2 12, pressure transmitter 13, bimetallic thermometer 2 14, integrative temperature transmitter 2 15, choke stop evacuation valve 2 16 and manual ball valve 2 17, the outlet end Bonding pressure transmitter 13 of described pressure gauge 2 12, the outlet end of described pressure transmitter 13 connects bimetallic thermometer 2 14, the outlet end connecting integration temperature transmitter 2 15 of described bimetallic thermometer 2 14, PLC 22 and power of controlled silicon regulator 23 is provided with in described electric heater control cabinet 38, described electric heater 3 is by the input end of connection PLC 22, the output terminal of described PLC 22 is connected with the control end of power of controlled silicon regulator 23.
Described electric heater 3 inside is with a heating core temperature transducer, and described heating core temperature transducer is by connection PLC 22.
Described electric heater 3 surface of shell is with two temperature transducers, and described temperature transducer is by connection PLC 22.
Described electric heater 3 inside is with two core body temperature high temperature protection switches, and described core body temperature high temperature protection switch is by connection PLC 22.
Described electric heater 3 outlet port is provided with a flow switch, and described flow switch is by connection PLC 22.
The front of described electric heater control cabinet 38 is provided with heater power index gauge 24, touch screen 25, bi-colour LED 26, rotating potentiometer 27, emergency stop button 28, control switch 29 and reset switch 30, and described heater power index gauge 24, touch screen 25, bi-colour LED 26, rotating potentiometer 27, emergency stop button 28, control switch 29 and reset switch 30 are respectively by connection PLC 22.
Described control switch 29 is throw over switch, and described throw over switch comprises manually, automatic and distance control mode.
Described electric heater control cabinet 38 inside left is provided with air circuit breaker earth leakage protective 31, current transformer 32, contactor 33 and power of controlled silicon regulator 23 from top to bottom successively; described electric heater control cabinet 38 inner right side is provided with relay 34, power supply 36, circuit breaker 35 and connecting terminal block 37 from top to bottom successively, and described air circuit breaker earth leakage protective 31, contactor 33, relay 34, circuit breaker 35 are respectively by connection PLC 22.
Described PLC 22 comprises power module, analog input and output module, number connect test module.
The utility model compared with the existing technology, novel structure, simply, reasonable in design, by rationally arranging the structure of control pressurer system, and in this control pressurer system, have additional electric heater and electric heater control cabinet, make electric heater by the input end of connection PLC, the output terminal of PLC is connected with the control end of power of controlled silicon regulator, thus 0 ~ 100% stepless power that realizes that can be stable exports and temperature regulating and controlling, the Programmable logical controller technology of maturation is combined with electron electric power technology, significantly improve the temperature-controlled precision of control pressurer system, achieve the temperature control that economical and efficient is stable, and the controllable parameter of electric heater control cabinet front display is many, good monitored picture can be provided, automaticity is high, in addition, not only degree of regulation is high for the control pressurer system of electrified heating device control cabinet described in the utility model, good stability, and Safety performance is high, and operation is very easy.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the external structure schematic diagram of electric heater control cabinet in the utility model;
Fig. 3 is the internal layout of electric heater control cabinet in the utility model;
In figure: 1, sledge seat 2, pipeline 3, electric heater 4, integrative temperature transmitter 1, safety cut-off valve 6, monitoring pressure governor 7, work pressure governor 8, choke stop evacuation valve 1, manual ball valve 1, pressure gauge 1, bimetallic thermometer 1, pressure gauge 2 13, pressure transmitter 14, bimetallic thermometer 2 15, integrative temperature transmitter 2 16, choke stop evacuation valve 2 17, manual ball valve 2 18, ball valve 1, manual ball valve 3 20, valve cover drainage valve 3 21, ball valve 2 22, PLC 23, power of controlled silicon regulator 24, heater power index gauge 25, touch screen 26, bi-colour LED 27, rotating potentiometer 28, emergency stop button 29, control switch 30, reset switch 31, air circuit breaker earth leakage protective 32, current transformer 33, contactor 34, relay 35, circuit breaker 36, power supply 37, connecting terminal block 38, electric heater control cabinet.
[embodiment]
Below in conjunction with accompanying drawing, following further illustrating is done to the utility model:
As shown in drawings, the utility model comprises: sledge seat 1 and electric heater control cabinet 38, sledge seat 1 is provided with pipeline 2, pipeline 2 is provided with electric heater 3 from entrance point successively to outlet end, integrative temperature transmitter 1, safety cut-off valve 5, monitoring pressure governor 6 and work pressure governor 7, choke stop evacuation valve 1 pipeline between integrative temperature transmitter 1 and safety cut-off valve 5 is equipped with, manual ball valve 1, pressure gauge 1 and bimetallic thermometer 1, the outlet end of pressure gauge 1 connects the entrance point of bimetallic thermometer 1, the outlet end of bimetallic thermometer 1 connects the entrance point of safety cut-off valve 5, the pipeline of work pressure governor 7 outlet end is provided with pressure gauge 2 12, pressure transmitter 13, bimetallic thermometer 2 14, integrative temperature transmitter 2 15, choke stop evacuation valve 2 16 and manual ball valve 2 17, the outlet end Bonding pressure transmitter 13 of pressure gauge 2 12, the outlet end of pressure transmitter 13 connects bimetallic thermometer 2 14, the outlet end connecting integration temperature transmitter 2 15 of bimetallic thermometer 2 14, PLC 22 and power of controlled silicon regulator 23 is provided with in electric heater control cabinet 38, electric heater 3 is by the input end of connection PLC 22, the output terminal of PLC 22 is connected with the control end of power of controlled silicon regulator 23.
In the utility model, electric heater 3 inside is with a heating core temperature transducer, and heating core temperature transducer is by connection PLC 22; Electric heater 3 surface of shell is with two temperature transducers, and temperature transducer is by connection PLC 22; Electric heater 3 inside is with two core body temperature high temperature protection switches, and core body temperature high temperature protection switch is by connection PLC 22.Electric heater 3 outlet port is provided with a flow switch, and flow switch passes through connection PLC 22, for reporting to the police and protection.
The front of electric heater control cabinet 38 is provided with heater power index gauge 24, touch screen 25, bi-colour LED 26, rotating potentiometer 27, emergency stop button 28, control switch 29 and reset switch 30, heater power index gauge 24, touch screen 25, bi-colour LED 26, rotating potentiometer 27, emergency stop button 28, control switch 29 and reset switch 30 are respectively by connection PLC 22, this control switch 29 is throw over switch, and throw over switch comprises manually, automatic and distance control mode.Electric heater control cabinet 38 inside left is provided with air circuit breaker earth leakage protective 31, current transformer 32, contactor 33 and power of controlled silicon regulator 23 from top to bottom successively; electric heater control cabinet 38 inner right side is provided with relay 34, power supply 36, circuit breaker 35 and connecting terminal block 37 from top to bottom successively; air circuit breaker earth leakage protective 31, contactor 33, relay 34, circuit breaker 35 are respectively by connection PLC 22, and this PLC 22 comprises power module, analog input and output module, number connect test module.
The utility model, by adopting PLC module and silicon controlled control mode, realizes the stepless control to electric heater 0-100% power stage.Electric heater outlet has temperature transducer (i.e. integrative temperature transmitter one) to detect Outlet Gas Temperature, and its temperature transducer provides 4 ~ 20mA signal to electric heater control cabinet, for monitoring electric heater outlet gas temperature.The outlet of work pressure governor has temperature transducer (i.e. integrative temperature transmitter two) to detect Outlet Gas Temperature, its temperature transducer provides 4 ~ 20mA signal to electric heater control cabinet, and the temperature acquisition for pid control circuit controls and monitoring pressure governor outlet gas temperature.This electric heater outlet port is also provided with a flow switch, provides passive contact signal to control the start-stop heating function of electric heater.
In the utility model; electric heater cylindrical shell inside is with a heating core temperature transducer; be used for feeding back the inside temperature of electric heater heating core; after exceeding high high limit protection temperature, export (disconnect passive often open) signal cut heater main power circuit by PLC and carry out safety interlocking protection.Rotatable heater housing surface is with two temperature transducers; be used for feeding back rotatable heater housing surface temperature; after exceeding high high limit protection temperature, export (disconnect passive often open) signal cut heater main power circuit by PLC and carry out safety interlocking protection.Electric heater cylindrical shell inside is with two core body temperature high-temperature protective switches; be used for protecting heater; after exceeding high limit protection temperature; export (disconnect passive often open) signal cut heater main power circuit by core body temperature high-temperature protective switch, export (disconnect passive often open) signal cut heater main power circuit by PLC simultaneously and carry out safety interlocking protection.
In the utility model, electric heater is automatic controlled electric heater gas outlet temperature on the spot; The running state parameter of electric heater and warning message feed back to the main frame of control room, station with RS485 signal of communication, and operator can export start stop signal at Master Control Room and control the long-range start and stop of electric heater (control cabinet is remote controlled manner).Master Control Room mainly monitors electric heater running state, fault, outlet temperature.This electric heater is resistive load, and in order to ensure that large power, electrically heater there will not be zero cross fired phenomenon when start and stop and temperature adjustment, power regulator adopts phase-shifting trigger control mode.The man-machine interface of electric heater control cabinet shows the parameters such as heating core temperature, surface temperature, flux signal and outlet medium temperature, can realize manually, automatically regulating temperature.Electric heater control system, according to flux signal auto controlled heater power controller (power regulator) start and stop heating, when electric heater starts to start, is detected by flow switch, starts heating according to heater outlet media flow signal; If flux signal be less than stop flow (disconnections of flow switch contact), then heater power regulator output power be zero make heater stop heat, heater is in hot standby holding state; When rate-of flow signal starts heating higher than heater when making flow (flow switch make contact); Flux signal is less than makes flow (disconnection of flow switch contact) send alarming prompt sound.
In the utility model, the outlet temperature of Heater Control System mainly power controller vector regulable control electric heater.Electric heater outlet arranges a temperature transducer, real-time sends medium temperature to Heater Control System, and the controller PLC+ information displaying touch screen HRM1 equipment of heater control cabinet system automatically exports size adjustment according to vector temperature algorithm to power regulator load according to outlet Medium Measurement temperature and controls outlet medium temperature in constant temperature scope.When having heat medium to flow in pipeline (being detected by flow switch), when flowing medium temperature is lower than setting temperature, Heater Control System improves electric heater output power, heats, by heating temperatures to setting temperature to flowing medium.When the flowing medium temperature of electric heater outlet exceedes setting temperature, Heater Control System reduces heater wattage output, and temperature is reduced to setting temperature.When in heater pipeline without (being detected by flow switch) during media flow, heater control cabinet internal power controller (power regulator) is in hot standby holding state, and power controller no current voltage is exported to heating core and stops output power.
When electric heater starts to start, power raises gradually from 0KW, instead of full power operation, when can prevent heater from just having started to start like this, suffers load impact, causes field, station load excessive, cause the generation of field, station power outage.Power regulator has volitional check output current function and carries out load safety protection function to heater.Control cabinet panel is provided with heater power index gauge, can the active power of instruction heater total system, wattless power, active electrical degree, the parameter such as electric current, voltage.This electric heating control cabinet is provided with control mode selector switch, there are manual/auto/long-range three kinds of control modes, when throw over switch is in " manual position ", heater control cabinet carries out Non-follow control on the spot and opens, stops, and controls power regulator load export size by regulating heater power regulator potentiometer; When throw over switch is in " automated location ", heater control cabinet carries out Non-follow control on the spot and opens, stops.By heater safety controller PLC according to media outlet measuring tempeature, control power regulator output load size and control outlet temperature at constant temperature; When throw over switch is in " remote location ", heater control cabinet controls start and stop (passive contact signal) by the Ore-controlling Role SCADA that stands.By heater safety controller PLC according to media outlet measuring tempeature, control power regulator output load size and control outlet temperature at constant temperature.
The utility model has safety protection warning lock function; the overall interlock protection of Heater Control System is designed to failure to safety; heater outlet media temperature sensor, pressure governor outlet temperature sensor, heating core temperature transducer; when heater surface temperatures sensor, heater connection box temperature protection switch, flow switch, safety PLC controller etc. break down, heater all cannot start.When Heater Control System is in any state, safety protection function has precedence over the enforcement of other controlling functions any; Temperature protection control loop and alarm circuit are independently arranged.Time in running order, any operation does not shield interlock protection.Heating core thermo-field thoery high temperature alarm and sensor fault stop heating, cut off heating installation power supply main circuit power; Heater surface temperatures superelevation high temperature alarm and sensor fault stop heating, cut off heating installation power supply main circuit power; Heater outlet temperature superelevation high limit temperature is reported to the police and sensor fault stops heating, cuts off heating installation power supply main circuit power; Pressure governor outlet temperature superelevation high limit temperature is reported to the police and sensor fault stops heating, cuts off heating installation power supply main circuit power; Heater connection box temperature protection switch overtemperature alarm stops heating, cuts off heating installation power supply main circuit power; Heater core inside temperature protective switch overtemperature alarm stops heating, cuts off heating installation power supply main circuit power; Media outlet flow switch fault stops heating, cuts off heating installation power supply main circuit power; During PLC fault, cut off heating installation power supply main circuit power; When heater overload or short circuit, heater major loop circuit breaker automatic trip thus cut off heating installation power supply main circuit power.
The utility model has warning lock function, and when having any high limit warning and sensor fault, fuser malfunction protection locking stops heating function, and after needing manual confirmation warning recovery, manually-operable control cabinet is ann reset button on the spot, carries out ann reset.When there being following alarm failure to occur, cut off heater power main circuit power and realize safety protection interlock: pressure governor outlet gas thermo-field thoery high limit temperature alarming, the temperature transducer open circuit of pressure governor outlet gas or short trouble are reported to the police, heater outlet fuel gas temperature superelevation high limit temperature alarming, the sensor open circuit of heater outlet fuel gas temperature or short trouble are reported to the police, heating core temperature transducer superelevation high limit temperature alarming, the open circuit of heating core temperature transducer or short trouble are reported to the police, heater surface temperatures sensor superelevation high limit temperature alarming, the open circuit of heater surface temperatures sensor or short trouble are reported to the police, heater core inside temperature protective switch overtemperature alarm, heater connection box temperature protection switch overtemperature alarm, heating installation power supply breaker open operation is reported to the police, power regulator malfunction alarm, the action of control cabinet ESD emergency stop button is reported to the police, long-range ESD emergency stop button action is reported to the police, PLC malfunction alarm.
The utility model can realize remote transmission parameter, and this system provides RS485 communication modes and passive contact signal to realize remote monitoring to station control DCS supervisory system for DCS monitoring.Monitoring runs and alarm failure state.
The utility model is not by the restriction of above-mentioned mode of execution; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (9)
1. the control pressurer system of an electrified heating device control cabinet, it is characterized in that: comprise sledge seat (1) and electric heater control cabinet (38), described sledge seat (1) is provided with pipeline (2), described pipeline (2) is provided with electric heater (3) successively from entrance point to outlet end, integrative temperature transmitter one (4), safety cut-off valve (5), monitoring pressure governor (6) and work pressure governor (7), pipeline between described integrative temperature transmitter one (4) and safety cut-off valve (5) is equipped with choke stop evacuation valve one (8), manual ball valve one (9), pressure gauge one (10) and bimetallic thermometer one (11), the outlet end of described pressure gauge one (10) connects the entrance point of bimetallic thermometer one (11), the outlet end of described bimetallic thermometer one (11) connects the entrance point of safety cut-off valve (5), the pipeline of described work pressure governor (7) outlet end is provided with pressure gauge two (12), pressure transmitter (13), bimetallic thermometer two (14), integrative temperature transmitter two (15), choke stop evacuation valve two (16) and manual ball valve two (17), the outlet end Bonding pressure transmitter (13) of described pressure gauge two (12), the outlet end of described pressure transmitter (13) connects bimetallic thermometer two (14), the outlet end connecting integration temperature transmitter two (15) of described bimetallic thermometer two (14), PLC (22) and power of controlled silicon regulator (23) is provided with in described electric heater control cabinet (38), described electric heater (3) is by the input end of connection PLC (22), the output terminal of described PLC (22) is connected with the control end of power of controlled silicon regulator (23).
2. control pressurer system as claimed in claim 1, is characterized in that: described electric heater (3) inside is with a heating core temperature transducer, and described heating core temperature transducer is by connection PLC (22).
3. control pressurer system as claimed in claim 1 or 2, is characterized in that: described electric heater (3) surface of shell is with two temperature transducers, and described temperature transducer is by connection PLC (22).
4. control pressurer system as claimed in claim 3; it is characterized in that: described electric heater (3) inside is with two core body temperature high temperature protection switches, and described core body temperature high temperature protection switch is by connection PLC (22).
5. control pressurer system as claimed in claim 4, is characterized in that: described electric heater (3) outlet port is provided with a flow switch, and described flow switch is by connection PLC (22).
6. control pressurer system as claimed in claim 5, it is characterized in that: the front of described electric heater control cabinet (38) is provided with heater power index gauge (24), touch screen (25), bi-colour LED (26), rotating potentiometer (27), emergency stop button (28), control switch (29) and reset switch (30), described heater power index gauge (24), touch screen (25), bi-colour LED (26), rotating potentiometer (27), emergency stop button (28), control switch (29) and reset switch (30) are respectively by connection PLC (22).
7. control pressurer system as claimed in claim 6, is characterized in that: described control switch (29) is throw over switch, described throw over switch comprises manually, automatic and distance control mode.
8. control pressurer system as claimed in claim 7, it is characterized in that: described electric heater control cabinet (38) inside left is provided with air circuit breaker earth leakage protective (31) from top to bottom successively, current transformer (32), contactor (33) and power of controlled silicon regulator (23), described electric heater control cabinet (38) inner right side is provided with relay (34) from top to bottom successively, power supply (36), circuit breaker (35) and connecting terminal block (37), described air circuit breaker earth leakage protective (31), contactor (33), relay (34), circuit breaker (35) is respectively by connection PLC (22).
9. control pressurer system as claimed in claim 8, is characterized in that: described PLC (22) comprises power module, analog input and output module, number connect test module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420761688.0U CN204300699U (en) | 2014-12-05 | 2014-12-05 | The control pressurer system of electrified heating device control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420761688.0U CN204300699U (en) | 2014-12-05 | 2014-12-05 | The control pressurer system of electrified heating device control cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN204300699U true CN204300699U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420761688.0U Active CN204300699U (en) | 2014-12-05 | 2014-12-05 | The control pressurer system of electrified heating device control cabinet |
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| Country | Link |
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| CN (1) | CN204300699U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508155A (en) * | 2017-08-21 | 2017-12-22 | 安徽省颍上县正泰电器有限责任公司 | Spell cabinet system in a kind of scene |
| CN107588548A (en) * | 2017-09-21 | 2018-01-16 | 巴州圣业能源技术服务有限公司 | The control method and system of inflammable and explosive gaseous state, liquid medium electric heater |
-
2014
- 2014-12-05 CN CN201420761688.0U patent/CN204300699U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508155A (en) * | 2017-08-21 | 2017-12-22 | 安徽省颍上县正泰电器有限责任公司 | Spell cabinet system in a kind of scene |
| CN107588548A (en) * | 2017-09-21 | 2018-01-16 | 巴州圣业能源技术服务有限公司 | The control method and system of inflammable and explosive gaseous state, liquid medium electric heater |
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| GR01 | Patent grant |