CN210295357U - Automatic fault alarm device for heat conduction oil system of calcination workshop - Google Patents
Automatic fault alarm device for heat conduction oil system of calcination workshop Download PDFInfo
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- CN210295357U CN210295357U CN201921344216.4U CN201921344216U CN210295357U CN 210295357 U CN210295357 U CN 210295357U CN 201921344216 U CN201921344216 U CN 201921344216U CN 210295357 U CN210295357 U CN 210295357U
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Abstract
The utility model discloses a calcination workshop heat conduction oil system trouble autoalarm, including three independent line alarm system, be respectively: the heat conduction oil temperature alarm system comprises a patrol instrument, a first alarm and a first relay, wherein the patrol instrument is used for detecting the oil temperature in a heat conduction oil pipeline; the heat conduction oil circulating pump shutdown alarm system comprises a frequency converter, a second relay and a second alarm of a heat conduction oil circulating pump motor; and the heat conduction oil system supplies power to the power grid and gives an alarm system when the power grid is cut off. Has the advantages that: by monitoring the states of the heat-conducting oil temperature polling meter, the frequency converter of the heat-conducting oil circulating pump motor and the power supply grid, when the temperature of the polling meter is overhigh, the frequency converter stops operating and the power supply grid is powered off, an alarm is used for giving an alarm, so that a worker can conveniently and technically handle the fault of the heat-conducting oil circulating system, the fault response speed is increased, and the running stability of the system is improved; the system has simple structure and convenient installation and maintenance.
Description
Technical Field
The utility model relates to a conduction oil circulation technical field, concretely relates to calcination workshop conduction oil system trouble autoalarm.
Background
With the domestic development of electric furnace steelmaking, the technology of the artificial graphite electrode is mature day by day, and heat conduction oil is widely applied to carbon production as a heat supply medium. The heat supply of the heat conduction oil to each production workshop is mainly completed through the heat conduction oil circulating pump, once the heat conduction oil circulating pump breaks down and stops running, the temperature of the heat conduction oil in the pipeline is certainly and rapidly increased in a short time, and if the condition is not timely repaired, oil injection of the head tank can be seriously ignited and exploded, so that the safety of personnel and equipment in a plant area is extremely unfavorable. In the prior art, no equipment for carrying out safety monitoring and alarming on the heat conduction oil circulating system exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a calcination workshop heat conduction oil system trouble autoalarm just in order to solve above-mentioned problem, the utility model provides an among a great deal of technical scheme preferred technical scheme have: the oil temperature, the operation state of the heat conduction oil pump and the power supply grid state of the heat conduction oil circulation system can be monitored respectively, an alarm can be given in time when problems occur, the operation stability of the system is improved, and the like, and the technical effects are explained in detail in the following.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of calcination workshop heat conduction oil system trouble autoalarm, including three independent line alarm system, be respectively:
the oil temperature alarm system comprises a patrol instrument for detecting the oil temperature in the heat conduction oil pipeline, a first alarm and a first relay; the normally open contact of the first relay is connected with the first alarm in series, and the first relay is connected with the patrol instrument in series;
the heat conduction oil circulating pump motor shutdown alarm system comprises a frequency converter of the heat conduction oil circulating pump motor, a second relay and a second alarm, wherein the second relay is connected with the frequency converter in series, and a normally open contact of the second relay is connected with the alarm in series;
the power supply grid outage alarm system comprises a circuit breaker, a third relay and a third alarm; the third relay and the breaker are connected in series in a 220V alternating current circuit to form a loop, a normally open contact of the third relay and the third alarm are connected in series in a self-supply 24V direct current circuit to form a loop, and a self-power supply is arranged in the self-power supply circuit.
Preferably, the patrol instrument comprises a temperature measuring couple arranged in the heat conducting oil pipeline and a patrol meter for setting the upper limit of temperature, the patrol meter is electrically connected with the temperature measuring couple, and the patrol meter is connected with the first relay in series.
Preferably, the second relay is connected to the frequency converter.
Preferably, the self-powered power supply is a storage battery outputting 24V direct current.
Preferably, the first relay, the second relay and the third relay are all JQX-22F relays.
To sum up, the utility model has the advantages that: 1. by monitoring the states of a heat conduction oil temperature polling meter, a frequency converter of a heat conduction oil circulating pump motor and a power supply grid, when the temperature of heat conduction oil is too high, the frequency converter of the motor stops running and the power supply grid is powered off, an alarm is used for giving an alarm, so that a worker can conveniently and technically handle the fault of a heat conduction oil circulating system, the fault response speed is increased, and the running stability of the system is improved;
2. the system has simple structure and convenient installation and maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the oil temperature alarm system of the present invention;
FIG. 2 is a schematic structural view of the stop alarm system for the motor of the hot oil circulating pump of the present invention;
fig. 3 is the structural schematic diagram of the power supply grid power-off alarm system of the hot oil system of the utility model.
The reference numerals are explained below:
1. inspecting a table; 2. a first relay; 3. a first relay normally open contact; 4. a first alarm; 5. a frequency converter; 6. a second relay; 7. a second relay normally open contact; 8. a second alarm; 9. a circuit breaker; 10. a third relay; 11. a third relay normally open contact; 12. a third alarm; 13. and (6) measuring the temperature.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the utility model provides a calcination workshop conduction oil circulation system trouble autoalarm, including three independent line alarm system, be respectively: the oil temperature alarm system comprises a routing inspection meter 1, a first alarm 4 and a first relay 2, wherein the routing inspection meter is used for detecting the oil temperature in the heat conduction oil pipeline; wherein, the normally open contact 3 of the first relay is connected with the first alarm 4 in series and is respectively connected between the L +220V and the NO line, the first relay 2 is connected with the patrol instrument 1 in series, and are respectively connected between the L +220V and NO lines, the routing inspection meter 1 comprises a temperature measurement couple 13 arranged in the heat conduction oil pipeline and the routing inspection meter 1 with the temperature upper limit, the inspection meter 1 is electrically connected with a temperature measurement couple 13, the inspection meter 1 is connected with a first relay 2 in series, after the temperature measurement couple 13 detects the oil temperature of the heat conducting oil, when the temperature exceeds the upper temperature limit preset in the meter, normally open contacts TC and TB in an output module in the relay are changed into a closed state from opening, so that the current of L +220V is switched on to a first relay 2, a coil in the first relay is electrified to change a normally open contact 3 into a closed state, a conductive path is formed by the normally open contact and a first alarm 4, and the first alarm 4 is electrified to alarm;
the hot oil circulating pump motor shutdown alarm system comprises a frequency converter 5 of a heat conduction oil circulating pump motor, a second relay 6 and a second alarm 8, wherein the second relay 6 is connected with open electric shocks TB and TC inside the frequency converter 5, the frequency converter 5 and the second relay 6 are respectively connected with L +220V and NO, a normally open contact 7 of the second relay is connected with the second alarm 8 in series, a normally open contact 7 of the second relay and the second alarm 8 are respectively connected with L +220V and NO, when the hot oil circulating pump motor operates normally, the TB and the TC contacts in the frequency converter 5 are in a normally open state, current is not electrified, the second alarm 8 does not act, when the hot oil circulating pump motor is shut down, the TB and the TC contacts are changed from the normally open state to a closed state, a coil of the second relay 6 is electrified to enable the normally open contact 7 of the second relay to be closed, a closed circuit is formed with the second alarm 8, and the second alarm 8 is electrified for alarm;
the power supply grid outage alarm system comprises a breaker 9 (in a closed state all the time), a third relay 10 and a third alarm 12; the third relay 10 and the breaker 9 are respectively connected with AC +220V and NO, a third relay normally open contact 11 and a third alarm 12 are connected in series in a DC +24V self-powered circuit to form a loop, a self-powered power supply is arranged in the self-powered circuit, when a power supply grid is electrified, the third relay normally open contact 11 is in a normally open state, the third alarm 12 is in a broken state, and NO action is performed; the circuit breaker 9 is in the closed state all the time and supplies power for the third relay, and when the electric wire netting outage often, the effect of third relay coil outage makes third relay normally open contact 11 closed, and third alarm 12 forms the warning logical point, and third alarm 12 reports to the police, and third relay normally open contact 11 and third alarm 12 adopt independent power supply to electric wire netting outage alarm system can independently report to the police after the electric wire netting outage.
As an alternative embodiment, the second relay 6 is connected with the frequency converter 5;
the self-powered power supply is a storage battery which outputs 24V direct current;
the first relay, the second relay and the third relay are all JQX-22F relays.
Through the monitoring of the states of the heat-conducting oil temperature polling meter 1, the frequency converter 5 of the heat-conducting oil circulating pump motor and a power supply power grid, when the temperature of the polling meter is too high, the motor frequency converter 5 stops running and the power grid is powered off, an alarm is used for giving an alarm, so that the technical processing of the fault of the heat-conducting oil circulating system by a worker is facilitated, the fault response speed is increased, and the running stability of the system is improved.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a calcination workshop heat conduction oil system trouble autoalarm, its characterized in that includes three independent line alarm system, is respectively:
the oil temperature alarm system comprises a temperature measurement couple for detecting the oil temperature measured in the heat conduction oil pipeline, a patrol meter, a first alarm and a first relay; the normally open contact of the first relay is connected with the first alarm in series, and the first relay is connected with the patrol instrument in series;
the shutdown alarm system comprises a frequency converter, a second relay and a second alarm of the heat conduction oil circulating pump motor, wherein the second relay is connected with the frequency converter in series, and a normally open contact of the second relay is connected with the alarm in series;
the heat conduction oil system supplies power to a power grid power-off alarm system, and the power grid power-off alarm system comprises a circuit breaker, a third relay and a third alarm; the third relay and the breaker are connected in series in a 220V alternating current circuit to form a loop, a normally open contact of the third relay and the third alarm are connected in series in a self-supply 24V direct current circuit to form a loop, and a self-power supply is arranged in the self-supply 24V direct current circuit.
2. The automatic alarm device for the faults of the calcining workshop heat conduction oil system as claimed in claim 1, wherein: the patrol inspection instrument comprises a temperature measurement couple arranged in the heat conduction oil pipeline and a patrol inspection meter for setting the upper limit of temperature, wherein the patrol inspection meter is connected with the temperature measurement couple, and the patrol inspection meter is connected with a first relay in series.
3. The automatic alarm device for the faults of the calcining workshop heat conduction oil system as claimed in claim 1, wherein: the second relay is connected with the frequency converter.
4. The automatic alarm device for the faults of the calcining workshop heat conduction oil system as claimed in claim 1, wherein: the self-powered power supply is a storage battery which outputs 24V direct current.
5. The automatic alarm device for the faults of the calcining workshop heat conduction oil system as claimed in claim 1, wherein: the first relay, the second relay and the third relay are all JQX-22F relays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921344216.4U CN210295357U (en) | 2019-08-19 | 2019-08-19 | Automatic fault alarm device for heat conduction oil system of calcination workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921344216.4U CN210295357U (en) | 2019-08-19 | 2019-08-19 | Automatic fault alarm device for heat conduction oil system of calcination workshop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210295357U true CN210295357U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921344216.4U Active CN210295357U (en) | 2019-08-19 | 2019-08-19 | Automatic fault alarm device for heat conduction oil system of calcination workshop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210295357U (en) |
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2019
- 2019-08-19 CN CN201921344216.4U patent/CN210295357U/en active Active
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