CN219885982U - Automatic control system for coke oven basement gas branch pipe - Google Patents
Automatic control system for coke oven basement gas branch pipe Download PDFInfo
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- CN219885982U CN219885982U CN202320308637.1U CN202320308637U CN219885982U CN 219885982 U CN219885982 U CN 219885982U CN 202320308637 U CN202320308637 U CN 202320308637U CN 219885982 U CN219885982 U CN 219885982U
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- gas
- branch pipe
- valve
- gas branch
- controller
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- 239000000571 coke Substances 0.000 title claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 38
- 238000002485 combustion reaction Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000003034 coal gas Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 45
- 238000004939 coking Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Landscapes
- Coke Industry (AREA)
Abstract
The utility model discloses an automatic control system of a coke oven basement gas branch pipe, which comprises a gas branch pipe, a gas main pipe and a modified cock and an exchange cock which are arranged on the gas branch pipe, wherein the gas inlet end of the gas branch pipe is communicated with the gas outlet of the gas main pipe; the device also comprises a temperature measuring device arranged in the temperature measuring flame path of each combustion chamber, a flow regulating device arranged on the gas branch pipe between the cock and the exchange cock, and a controller; the signal output end of the temperature measuring device is in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input end of the flow regulating device. The advantages are that: through the interlocking control of the temperature measuring device and the flow regulating device, the furnace temperature can be timely regulated, the furnace temperature is prevented from greatly fluctuating, the uniformity and the stability of the furnace temperature are ensured, the waste of a large amount of coal gas is avoided, the quality of coke is ensured, and the service life of the coke oven is prolonged.
Description
Technical field:
the utility model relates to a coking technology, in particular to an automatic control system for a coke oven basement gas branch pipe.
The background technology is as follows:
coking refers to the technological process that coking coal is heated to about 1000 ℃ under the condition of air isolation (high-temperature carbonization), and coke, coke oven gas and other coking chemical products are produced through thermal decomposition and coking. Part of the generated coke oven gas is used as a gas product, and the other part of the coke oven gas enters the gas main pipe and then enters each gas branch pipe respectively to provide fuel gas for the combustion of each combustion chamber. Meanwhile, the opening degree of the add-subtract cock is adjusted by manually controlling the opening and closing of each gas branch pipe or roughly adjusting the opening degree of the add-subtract cock according to the experience of staff.
In the coking process, the temperature of the coke oven is generally controlled to be about 1200-1300 ℃, the temperature hysteresis is large in the operation process, and the gas quantity entering the combustion chamber cannot be accurately regulated, so that the control difficulty of the temperature uniformity is large, and particularly in the end of coking, the energy required by the coke is greatly reduced, and the temperature of the coke is rapidly increased, so that the gas quantity is wasted, the coke quality is influenced, and even the service life of the coke oven is influenced.
The utility model comprises the following steps:
the utility model aims to provide an automatic control system for a coke oven basement gas branch pipe, which can effectively improve the uniformity of the temperature of the coke oven, save the usage amount of return gas and reduce the labor intensity of workers.
The utility model is implemented by the following technical scheme:
an automatic control system for a coke oven underground chamber gas branch pipe comprises a gas branch pipe, a gas main pipe, a adding and subtracting cock and an exchange cock which are arranged on the gas branch pipe, wherein the gas inlet end of the gas branch pipe is communicated with the gas outlet of the gas main pipe; the device also comprises a temperature measuring device arranged in each combustion chamber temperature measuring flame path, a flow regulating device arranged on the gas branch pipe between the add-subtract cock and the exchange cock, and a controller;
the signal output end of the temperature measuring device is in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input end of the flow regulating device.
Further, the flow regulating device comprises a regulating valve, a valve actuator and a valve positioner;
the valve plate of the regulating valve is connected with the valve actuator through a transmission shaft, and the valve rod of the regulating valve is connected with the valve positioner;
the signal output end of the valve positioner is in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input end of the valve actuator.
Further, the temperature measuring device is an infrared thermometer.
The utility model has the advantages that:
the temperature measuring device and the flow regulating device are controlled in an interlocking way, so that the furnace temperature can be adjusted in time, the furnace temperature is prevented from being greatly fluctuated, the uniformity and the stability of the furnace temperature are ensured, the waste of a large amount of coal gas is avoided, the quality of coke is ensured, and the service life of the coke oven is prolonged; meanwhile, by arranging the valve actuator and the valve positioner, the automatic control of the gas flow in the gas branch pipe can be realized, the traditional mode of manually adjusting and adding and subtracting the cock is replaced, the workload of field personnel is reduced, and the control is more accurate.
Description of the drawings:
in order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an automatic control system for a coke oven basement gas branch pipe according to the present embodiment;
FIG. 2 is a control schematic diagram of an automatic control system for a coke oven basement gas branch pipe provided by the embodiment;
in the figure: the gas branch pipe 1, the exchange cock 2, the regulating valve 3, the valve actuator 4, the valve positioner 5, the add-subtract cock 6, the gas main pipe 7, the infrared thermometer 8 and the controller 9.
The specific embodiment is as follows:
the following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1:
the automatic control system of the coke oven basement gas branch pipe as shown in fig. 1 and 2 comprises a gas branch pipe 1, a gas main pipe 7, a modified cock 6 and an exchange cock 2 which are arranged on the gas branch pipe 1, wherein the gas inlet end of the gas branch pipe 1 is communicated with the gas outlet of the gas main pipe 7; the device also comprises a temperature measuring device arranged in each combustion chamber temperature measuring flame path, a flow regulating device arranged on the gas branch pipe 1 between the adding and subtracting cock 6 and the exchange cock 2, and a controller 9;
the temperature measuring device is an infrared thermometer 8. The flow regulating device comprises a regulating valve 3, a valve actuator 4 and a valve positioner 5; the regulating valve 3 is arranged on the gas branch pipe 1, the valve plate of the regulating valve 3 is connected with the valve actuator 4 through a transmission shaft, and the valve rod of the regulating valve is connected with the valve positioner 5.
The signal output end of the infrared thermometer 8 is in signal connection with the signal input end of the controller 9, the signal output end of the valve positioner 5 is in signal connection with the signal input end of the controller 9, and the signal output end of the controller 9 is in signal connection with the signal input end of the valve actuator 4.
The working description:
taking a coke oven plant of 5.5 m 55 Kong Dao as an example, the coke oven has 55 carbonization chambers and 56 combustion chambers, and the basement has 1 main gas pipe 7 and 112 gas branch pipes 1, wherein each combustion chamber is provided with 2 gas branch pipes 1.
The regulating valve 3 is arranged between the exchange cock 2 and the addition and subtraction cock 6 of 112 gas branch pipes 1, and the valve actuator 4 (which can be selected from valve actuators produced by factories such as Emerson, siemens, shenzhen Wan automatic control, horniwell and the like) is connected with the valve plate of the regulating valve 3 through a transmission shaft, and can be directly connected with or added with a connecting shaft for executing a valve action instruction sent by the controller 9; the valve positioner 5 adopts an intelligent positioner (which can be made by Shenzhen, schneider, siemens, ABB, emerson and other companies), and after the regulating valve 3 acts, the valve positioner 5 can acquire the valve position state of a valve rod, and the valve position state is transmitted to the controller 9 through an electric signal and is used for issuing and detecting the opening of the regulating valve 3. The infrared thermometer 8 is used for collecting the temperature of the combustion chamber temperature measuring flame path and transmitting the measured temperature to the controller 9.
The controller 9 compares the received temperature value with the standard temperature, if the temperature value is smaller than the standard temperature, the flow of the corresponding gas branch pipe 1 needs to be increased; if the temperature is higher than the standard temperature, the flow of the corresponding gas branch pipe 1 needs to be reduced.
Meanwhile, according to the magnitude of the temperature difference, the flow regulating quantity can be determined according to the heat value of the gas, the opening regulating quantity of the regulating valve 3 can be determined according to the type of the regulating valve 3, the opening regulating quantity of the regulating valve 3 is sent to the valve actuator 4, the valve actuator 4 regulates the opening of the regulating valve 3, meanwhile, the valve positioner 5 feeds back the collected regulating information to the controller 9, and when the valve positioner 5 accords the collected regulating quantity with the determined opening regulating quantity of the regulating valve 3, the valve actuator 4 stops acting.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (3)
1. An automatic control system for a coke oven underground chamber gas branch pipe comprises a gas branch pipe, a gas main pipe, a adding and subtracting cock and an exchange cock which are arranged on the gas branch pipe, wherein the gas inlet end of the gas branch pipe is communicated with the gas outlet of the gas main pipe; the device is characterized by further comprising a temperature measuring device arranged in each combustion chamber temperature measuring flame path, a flow regulating device arranged on the gas branch pipe between the add-subtract cock and the exchange cock, and a controller;
the signal output end of the temperature measuring device is in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input end of the flow regulating device.
2. The coke oven basement gas leg automatic control system of claim 1, wherein the flow regulator comprises a regulator valve, a valve actuator, and a valve positioner;
the valve plate of the regulating valve is connected with the valve actuator through a transmission shaft, and the valve rod of the regulating valve is connected with the valve positioner;
the signal output end of the valve positioner is in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input end of the valve actuator.
3. The automatic control system for a coke oven basement gas branch pipe according to claim 1, wherein the temperature measuring device is an infrared thermometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320308637.1U CN219885982U (en) | 2023-02-24 | 2023-02-24 | Automatic control system for coke oven basement gas branch pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320308637.1U CN219885982U (en) | 2023-02-24 | 2023-02-24 | Automatic control system for coke oven basement gas branch pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219885982U true CN219885982U (en) | 2023-10-24 |
Family
ID=88396506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320308637.1U Active CN219885982U (en) | 2023-02-24 | 2023-02-24 | Automatic control system for coke oven basement gas branch pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219885982U (en) |
-
2023
- 2023-02-24 CN CN202320308637.1U patent/CN219885982U/en active Active
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