CN217633043U - Coke oven gas blower unit control device - Google Patents
Coke oven gas blower unit control device Download PDFInfo
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- CN217633043U CN217633043U CN202220739942.1U CN202220739942U CN217633043U CN 217633043 U CN217633043 U CN 217633043U CN 202220739942 U CN202220739942 U CN 202220739942U CN 217633043 U CN217633043 U CN 217633043U
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Abstract
The utility model discloses a coke oven gas blower unit control device, which belongs to the technical field of coke oven gas blower units and comprises an editable controller, a 1# blower control unit, a 2# blower control unit and a 3# blower control unit; the editable controller is electrically connected with the No. 1 blower control unit, the No. 2 blower control unit and the No. 3 blower control unit respectively; the No. 1 blower control unit is electrically connected with a No. 1 blower, the No. 2 blower control unit is electrically connected with a No. 2 blower, and the No. 3 blower control unit is electrically connected with a No. 3 blower. The utility model discloses a specially form for the design of air-blower unit, this scheme redesign air-blower unit controlling means, but every air-blower of control alone operation, air-blower unit control system also can carry out timely inspection, maintenance and point inspection, and in time the discovery trouble is maintained, avoids the air-blower to jump to stop, avoids influencing normal production, avoids the polluted environment.
Description
Technical Field
The utility model relates to a coke oven gas blower unit technical field, concretely relates to coke oven gas blower unit controlling means.
Background
The coke oven gas blower unit is a special power device for conveying gas in the gas purification process after the primary cooler, is used for controlling the pressure of a gas collecting pipe of the coke oven, and mostly adopts a centrifuge. The blower unit, also known in the coking industry as the "coker heart", demonstrates the critical role of this unit in the coking production.
At present, three blowers of a coke oven gas blower unit share one DCS system to control all analog quantity and switching value signal points, and due to the particularity of the coking industry, one blower must be operated to ensure normal production, so that the blower unit control system cannot perform timely inspection, maintenance, point inspection and the like, the problems of aging, overhaul, fault hidden danger and the like of components in the control system cannot be found timely, and even internal elements are heated and short-circuited in serious cases, and the system is paralyzed to stop the blower; the most worried about in the coking industry is that a fan is stopped, and after the fan is stopped, no suction force exists, so that the pressure of a gas collecting pipe of the coke oven is increased, and the problem of environment pollution caused by the release of raw coke oven gas is caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a control device of a coke oven gas blower unit; this coke oven gas air-blower unit controlling means forms for air-blower unit design specially, and this scheme redesign air-blower unit controlling means controls every air-blower and can move alone, and air-blower unit control system also can carry out timely inspection, maintenance and some inspection, and the trouble of finding in time is maintained, avoids the air-blower to jump and stops, avoids influencing normal production, avoids the polluted environment.
In order to solve the technical problem, the utility model provides a coke oven gas blower unit control device, which comprises an editable controller, a 1# blower control unit, a 2# blower control unit and a 3# blower control unit; the editable controller is electrically connected with the No. 1 blower control unit, the No. 2 blower control unit and the No. 3 blower control unit respectively; the No. 1 blower control unit is electrically connected with a No. 1 blower, the No. 2 blower control unit is electrically connected with a No. 2 blower, and the No. 3 blower control unit is electrically connected with a No. 3 blower.
In a further improvement of the present invention, the 1# blower control unit includes a 1# blower controller; the # 2 blower control unit comprises a # 2 blower controller; the 3# blower control unit includes a 3# blower controller.
Through the design, the scheme can be more convenient to implement and control.
In the further improvement of the utility model, the temperature measuring point of the No. 1 blower is provided with a No. 1 double branch thermal resistor, and the pressure measuring point of the No. 1 blower is provided with two No. 1 pressure transmitters; the 1# double-branch thermal resistor and the two 1# pressure transmitters are connected with a 1# safety barrier, and the 1# safety barrier is electrically connected with a 1# blower controller.
Through the design, the temperature and the pressure of 1# air-blower department can be more conveniently detected to this scheme.
In the further improvement of the utility model, the temperature measuring point of the 2# blower is provided with a 2# double branch thermal resistor, and the pressure measuring point of the 2# blower is provided with two 2# pressure transmitters; the 2# double-branch thermal resistor and the two 2# pressure transmitters are connected with a 2# safety barrier, and the 2# safety barrier is electrically connected with a 2# blower controller.
Through the design, the temperature and the pressure of 2# air-blower department can be more convenient for detect to this scheme.
In the further improvement of the utility model, the temperature measuring point of the 3# blower is provided with a 3# double branch thermal resistor, and the pressure measuring point of the 3# blower is provided with two 3# pressure transmitters; the 3# double-branch thermal resistor and the two 3# pressure transmitters are connected with a 3# safety barrier, and the 3# safety barrier is electrically connected with a 1# blower controller.
Through above-mentioned design, this scheme can be more be convenient for detect the temperature and the pressure of 3# air-blower department.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a specially form for the design of air-blower unit, this scheme redesign air-blower unit controlling means, but every air-blower of control alone operation, air-blower unit control system also can carry out timely inspection, maintenance and point inspection, and in time the discovery trouble is maintained, avoids the air-blower to jump to stop, avoids influencing normal production, avoids the polluted environment.
Drawings
To more clearly illustrate the background art or the technical solutions of the present invention, the drawings used in combination with the prior art or the detailed description are briefly described below; obviously, the structure, proportion, size, etc. shown in the drawings are only used for matching with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structure, change of the proportion relation or adjustment of the size should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention.
Fig. 1 is a control block diagram of an embodiment of the present invention.
Detailed Description
In order to make the technical solution in the present invention better understand, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, based on the embodiments in the present invention, all other embodiments obtained by the person skilled in the art without creative work should belong to the protection scope of the present invention.
Meanwhile, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, referred to in the present specification, refer to the orientation or positional relationship indicated on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, it is not understood as a limitation of the present invention, and a change or adjustment of the relative relationship thereof, without substantial technical change, should be considered as a practicable scope of the present invention.
Meanwhile, in the description of the present specification, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other, so that the specific meaning of the terms in the invention can be understood through specific situations for a person skilled in the art.
As shown in fig. 1, a coke oven gas blower unit control device includes an editable controller, a # 1 blower control unit, a # 2 blower control unit, and a # 3 blower control unit; the editable controller is electrically connected with the No. 1 blower control unit, the No. 2 blower control unit and the No. 3 blower control unit respectively; the No. 1 blower control unit is electrically connected with a No. 1 blower, the No. 2 blower control unit is electrically connected with a No. 2 blower, and the No. 3 blower control unit is electrically connected with a No. 3 blower.
At present, three blowers of a coke oven gas blower unit share one DCS system to control all analog quantity and switching value signal points, and due to the particularity of the coking industry, one blower must be operated to ensure normal production, so that the blower unit control system cannot perform timely inspection, maintenance, point inspection and the like, the problems of aging, overhaul, fault hidden danger and the like of components in the control system cannot be found timely, and even internal elements are heated and short-circuited in serious cases, and the system is paralyzed to stop the blower; the most worried in the coking industry is that the blower is stopped, and after the blower is stopped, no suction force exists, so that the pressure of a gas collecting pipe of the coke oven is increased, and the problem of environment pollution caused by the release of raw coke oven gas is caused
Therefore, the design concept of the application is that each air blower is controlled by using an independent main control card, the controller of each air blower is connected into the main controller, after the trial operation is improved, one running air blower is normally controlled, the rest two air blower control systems can be powered off and maintained, the normal running of the air blower is not influenced, and the problems that the air blower control system cannot be timely maintained and checked in production, the system fails to be timely solved and the air blower is shut down are solved.
The # 1 blower control unit comprises a # 1 blower controller; the # 2 blower control unit comprises a # 2 blower controller; the 3# blower control unit includes a 3# blower controller.
A 1# double branch thermal resistor is arranged at a temperature measuring point of the 1# blower, and two 1# pressure transmitters are arranged at a pressure measuring point of the 1# blower; the 1# double-branch thermal resistor and the two 1# pressure transmitters are connected with a 1# safety barrier, and the 1# safety barrier is electrically connected with a 1# blower controller.
A 2# double-branch thermal resistor is arranged at a temperature measuring point of the 2# blower, and two 2# pressure transmitters are arranged at a pressure measuring point of the 2# blower; the 2# double-branch thermal resistor and the two 2# pressure transmitters are connected with a 2# safety barrier, and the 2# safety barrier is electrically connected with a 2# blower controller.
A 3# double branch thermal resistor is arranged at a temperature measuring point of the 3# blower, and two 3# pressure transmitters are arranged at a pressure measuring point of the 3# blower; the 3# double-branch thermal resistor and the two 3# pressure transmitters are connected with a 3# safety barrier, and the 3# safety barrier is electrically connected with a 1# blower controller.
When a normal unit leaves a factory, the temperature measuring points, the pressure measuring points and the like are provided with a measuring element, on the premise of interlocking input, the unit measuring points cannot be guaranteed not to be influenced by interference signals, and the false signals can also cause interlocking shutdown to cause serious environmental pollution.
1. The temperature measuring point of the blower unit and the motor interlock is modified into a double-branch thermal resistor, the original unit uses a single PT100 thermal resistor, and the defect of using the single resistor is that (1) when the unit operates, vibration can be generated to loosen a fastening bolt of the resistor, so that a temperature measuring element is broken, the temperature can display a full range, and the unit high interlock is stopped; (2) Temperature fluctuation is caused when the interference type occurs, whether the temperature measuring point is a true value or not cannot be judged, and no reference is provided; according to the application, a single PT100 thermal resistor is changed into a double-branch thermal resistor, temperature two-out-of-two interlocking is carried out in a DCS (distributed control system) system (controller), and the defects are well overcome.
2. The method comprises the following steps that a lubricating oil pressure hydraulic coupler and a main pipe oil pressure measuring point of a unit are changed into two-way pressure measurement, namely two pressure transmitters are used for measuring, a single pressure transmitter used by an original unit enters a DCS control system through a 4-20mA signal, and the single pressure transmitter is used for the defect that (1) when the unit runs, vibration is generated to shake a joint part of the pressure transmitter loose, so that the pressure transmitter is low in measured pressure, and further the unit is low in oil pressure and is interlocked to be tripped; (2) When the interference model is generated and pressure fluctuation is caused, whether the pressure measuring point is a true value or not cannot be judged, and no reference basis exists; (3) When pressure transmitter broke down or the oil circuit blockked up, can appear pressure and be zero, also can lead to the low interlocking of unit oil pressure to jump and stop, this application will improve to two pressure points of getting, installs two pressure transmitters, and in DCS system with the logic change into two to get two interlocks, the fine solution of above problem.
3. Adding a safety gate and configuring:
a safety barrier is installed before a measuring point of each blower and each motor in interlocking connection is connected to a system, the safety barrier of each measuring point requires 24V redundant power supply, and a 24V power supply module supplies power for two independent paths, so that after one path of the safety barrier has power supply failure, the power can be normally supplied through the 24V power supply redundant module.
The safety grating of each thermal resistance signal is configured, when the thermal resistance signal is broken or short-circuited, the output of the safety grating is minimum, and the safety grating flashes to give an alarm, so that the interlocking shutdown caused by the fault of the on-site thermal resistance signal can be effectively avoided, and the 4-20mA signal of the on-site pressure transmitter is added with the safety grating, so that the signal interference problem caused by strong current can be effectively filtered.
Two-taking two-interlocking: in the DCS control system, the above mentioned two-way signals respectively enter different cards in the same system, so that the problem of two signals caused by card faults is effectively avoided, two-out-of-two interlocking is set in logic for the two signals at the same measuring point, a delay function module is added, and the shutdown condition caused by interference is reduced again.
Construction: 1. the unit is provided with a double branch thermal resistor and a double pressure transmitter on site;
2: on site, the signal is transmitted to the control cabinet through a single shielded signal wire and is introduced into a cabinet safety barrier,
3: configuring the double temperature measuring points in the safety barrier, and displaying the minimum value under the conditions of short circuit and open circuit;
4: the safety grid outputs signals to enter DCS clamping pieces, and the double temperature (pressure) of the same measuring point enters the same type of clamping pieces with different addresses;
5: and through internal logic, two-out-of-two judgment is carried out on the pressure and temperature signals, and when the two signals reach the interlocking value simultaneously, the shutdown is triggered.
Although the present invention has been described in detail with reference to the drawings and preferred embodiments, the present invention is not limited thereto, and those skilled in the art can make various equivalent modifications or substitutions to the embodiments of the present invention without departing from the spirit and essential characteristics of the present invention, and these modifications or substitutions should be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be defined by the appended claims.
Claims (4)
1. A coke oven gas blower unit control device is characterized in that: the system comprises an editable controller, a 1# blower control unit, a 2# blower control unit and a 3# blower control unit; the editable controller is electrically connected with the No. 1 blower control unit, the No. 2 blower control unit and the No. 3 blower control unit respectively; the No. 1 blower control unit is electrically connected with a No. 1 blower, the No. 2 blower control unit is electrically connected with a No. 2 blower, and the No. 3 blower control unit is electrically connected with a No. 3 blower;
the # 1 blower control unit comprises a # 1 blower controller; the # 2 blower control unit includes a # 2 blower controller; the 3# blower control unit includes a 3# blower controller.
2. The coke oven gas blower unit control device of claim 1, wherein: a 1# double branch thermal resistor is arranged at a temperature measuring point of the 1# blower, and two 1# pressure transmitters are arranged at a pressure measuring point of the 1# blower; the 1# double-branch thermal resistor and the two 1# pressure transmitters are connected with a 1# safety barrier, and the 1# safety barrier is electrically connected with a 1# blower controller.
3. The coke oven gas blower unit control device of claim 1, wherein: a 2# double-branch thermal resistor is arranged at a temperature measuring point of the 2# blower, and two 2# pressure transmitters are arranged at a pressure measuring point of the 2# blower; the 2# double-branch thermal resistor and the two 2# pressure transmitters are connected with a 2# safety barrier, and the 2# safety barrier is electrically connected with a 2# blower controller.
4. The coke oven gas blower unit control device of claim 1, wherein: a 3# double branch thermal resistor is arranged at a temperature measuring point of the 3# blower, and two 3# pressure transmitters are arranged at a pressure measuring point of the 3# blower; the 3# double-branch thermal resistor and the two 3# pressure transmitters are connected with a 3# safety barrier, and the 3# safety barrier is electrically connected with a 1# blower controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220739942.1U CN217633043U (en) | 2022-03-31 | 2022-03-31 | Coke oven gas blower unit control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220739942.1U CN217633043U (en) | 2022-03-31 | 2022-03-31 | Coke oven gas blower unit control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217633043U true CN217633043U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220739942.1U Active CN217633043U (en) | 2022-03-31 | 2022-03-31 | Coke oven gas blower unit control device |
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| Country | Link |
|---|---|
| CN (1) | CN217633043U (en) |
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- 2022-03-31 CN CN202220739942.1U patent/CN217633043U/en active Active
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