CN208984273U - A kind of coke oven bridge tube raw coke oven gas pressure-measuring system - Google Patents
A kind of coke oven bridge tube raw coke oven gas pressure-measuring system Download PDFInfo
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- CN208984273U CN208984273U CN201821848939.3U CN201821848939U CN208984273U CN 208984273 U CN208984273 U CN 208984273U CN 201821848939 U CN201821848939 U CN 201821848939U CN 208984273 U CN208984273 U CN 208984273U
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Abstract
The utility model provides a kind of coke oven bridge tube raw coke oven gas pressure-measuring system, including sampling probe, differential pressure transmitter, constant flow blowning installation, further includes the first stop valve, the second stop valve, special-shaped sleeve three-way connector and three-way connection.Sampling probe outlet connects special-shaped sleeve three-way connector by sampling main pipe rail, separates two-way by special-shaped sleeve three-way connector: steam blowing pipeline and pressure detecting pipeline；It further include RTU and DTU, the differential pressure transmitter, constant flow blowning installation, the first stop valve and the second stop valve pass through electric interfaces and be connected with the I/O port of RTU, and RTU is connected with RS485 communication modes with DTU.Designed for 1) design of cancelling former ammonia spray, connecting pipe blockage problem can be solved by increasing steam regular purge device by the device, guaranteed the accuracy of pressure measurement, reduced the labor intensity of maintenance personnel；2) solve the problems, such as that pressure detecting element and the connection cable of purging switching element are easy to burn.
Description
Technical field
The utility model relates to coke-stove gas detection fields, in particular to a kind of coke oven bridge tube raw coke oven gas pressure measurement system
System.
Background technique
In order to realize that coke oven respectively carbonizes the stability contorting of room pressure, it is necessary to carry out accurate stable to bridge tube gas pressure
Measurement.But contain coal dust, tar in the raw coke oven gas as caused by coke oven production process, it is easy the heap on bend pipe and interface
Product graphite and tar block connecting pipe, cause stress measuring device operation irregularity, so artificial periodic cleaning connecting pipe is needed,
And it be easy to cause raw coke oven gas excessive in scale removal process.
The Chinese patent of Publication No. CN 106595948A discloses a kind of coke oven bridge tube raw coke oven gas device for pressure measurement,
Blockage is solved by the way of the ammonia spray of probe tube front end in its scheme, the effect is unsatisfactory.
1) the utility model solves the blockage problem in pressure detecting pipeline by the way of steam regular purge, and design is steamed
Vapour scavenging pipeline simultaneously carries out regular purge to it by control system.
2) when carrying out regular purge design to pressure catheter, newly-designed part needs to carry out electrical wiring, due to coke
Furnace furnace roof regional temperature is high and open fire often occurs, is easy to burn out instrument cable and gantry under such environment, most handy wireless
The mode of connection just can solve this problem.
Summary of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of coke oven bridge tube raw coke oven gas pressure-measuring system,
Designed for 1) design of cancelling former ammonia spray, increasing steam regular purge device can solve to lead by the device
Pressure pipe blockage problem guarantees the accuracy of pressure measurement, reduces the labor intensity of maintenance personnel；2) solve pressure detecting element and
The connection cable of purging switching element is easy the problem of burning.
In order to achieve the above object, the utility model is implemented with the following technical solutions:
A kind of coke oven bridge tube raw coke oven gas pressure-measuring system, including sampling probe, differential pressure transmitter, constant flow are blown and are filled
It sets, which is characterized in that further include the first stop valve, the second stop valve, special-shaped sleeve three-way connector and three-way connection.
The sampling probe is installed at coke oven coke oven uprising tube bridge tube, and sampling probe outlet is connected different by sampling main pipe rail
Shape sleeve three-way connector separates two-way by special-shaped sleeve three-way connector: steam blowing pipeline and pressure detecting pipeline；Described
Purging steam is connected by the first stop valve among steam blowing pipeline, is cut among the pressure detecting pipeline by second
Disconnected valve connects three-way connection, separates two-way by three-way connection: differential pressure transmitter pipeline and nitrogen blowing pipe, differential pressure transmitter
Piping connection differential pressure transmitter, nitrogen blowing pipe connect air blast by constant flow blowning installation and survey pressure nitrogen.
The pressure-measuring system further includes RTU and DTU, the differential pressure transmitter, constant flow blowning installation, first
Stop valve and the second stop valve pass through electric interfaces and are connected with the I/O port of RTU, and RTU is with RS485 communication modes and DTU phase
Even, it is communicated wirelessly and is connect with PLC or DCS control system by DTU.
In the differential pressure transmitter pipeline, differential pressure transmitter front end is also equipped with female branch tee ball valve.
The port AI of the differential pressure transmitter connection RTU, the port AO of the constant flow blowning installation connection RTU,
The port DO of first stop valve and the second stop valve connection RTU.
The RTU and DTU is mounted in the furnace roof control cabinet of coke oven.
Compared with prior art, the utility model has the beneficial effects that
1, steam blowing pipeline is devised, in steam blowing pipeline, is determined using two stop valves of automatic switchover
Phase switching purging, the anti-clogging effect than the ammonia spray mode of original design are good；
2, with the connection of two stop valve control pipers, guarantee that bridge tube pressure pipeline is only blown with pressure detecting pipeline and steam
Sweep the connection of one of pipeline；
3, since steam blowing pipeline is different from pressure-measuring pipe road tubing internal diameter, special-shaped sleeve three-way connector is used, is solved
The connectivity problem of steam blowing pipeline and pressure-measuring pipe road, while sealing effect is good；
4, the electrical connection of all electric control elements and signal collecting element is uniformly connected in the RTU of control cabinet of furnace roof,
Then it is connect by way of wireless connection with following control system, solves the problems, such as that cable overheat is burnt.
5, in the design of wireless system, using DTU device, it can be realized the MODBUS wireless transparent transmission of the RS485 of data,
Using the MODBUS transparent transmission of DTU, PLC or DCS system can directly receive MODBUS data, without re-starting agreement matching.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein: 1- coke oven coke oven uprising tube bridge tube 2- sampling probe 3- samples main pipe rail 4- abnormity sleeve three-way connector 5- and steams
Vapour scavenging pipeline 6- pressure detecting pipeline 7- the first stop valve 8- the second stop valve 9- differential pressure transmitter pipeline 10- nitrogen
Blowing pipe 11- female branch tee ball valve 12- differential pressure transmitter 13- constant flow blowning installation 14- leads directly to end connector 15-
External screw thread connector.
Specific embodiment
Specific embodiment provided by the utility model is described in detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of coke oven bridge tube raw coke oven gas pressure-measuring system, including sampling probe 2, differential pressure transmitter 12,
Constant flow blowning installation 13 further includes the first stop valve 7, the second stop valve 8, special-shaped sleeve three-way connector 4 and three-way connection 10.
The sampling probe 2 is installed at coke oven coke oven uprising tube bridge tube 1, and the outlet of sampling probe 2 is connected by sampling main pipe rail 3
Special-shaped sleeve three-way connector 4 is connect, two-way is separated by special-shaped sleeve three-way connector 4: steam blowing pipeline 5 and pressure detecting pipeline
6；Purging steam is connected by the first stop valve 7 among the steam blowing pipeline 5, in the pressure detecting pipeline 6
Between by the second stop valve 8 connect three-way connection 10, two-way is separated by three-way connection 10: differential pressure transmitter pipeline 9 and nitrogen
Blowing pipe 10, differential pressure transmitter pipeline 9 connect differential pressure transmitter 12, and nitrogen blowing pipe 10 passes through constant flow blowning installation 13
It connects air blast and surveys pressure nitrogen.
The pressure-measuring system further includes RTU and DTU, the differential pressure transmitter 12, constant flow blowning installation 13,
First stop valve 7 and the second stop valve 8 are connected by electric interfaces with the I/O port of RTU, and RTU is with RS485 communication modes
It is connected with DTU, is communicated wirelessly and connect with PLC or DCS control system by DTU.
In the differential pressure transmitter pipeline 9,12 front end of differential pressure transmitter is also equipped with female branch tee ball valve 11, is used for
It is used when maintenance.
The differential pressure transmitter 12 connects the port AI of RTU, and the constant flow blowning installation 13 connects the end AO of RTU
Mouthful, the port DO of first stop valve 7 and the second stop valve 8 connection RTU.
The RTU and DTU is mounted in the furnace roof control cabinet of coke oven.
Due to the original part in the embodiment of the utility model be all made of it is automatically controlled, so, constant flow in the design is blown dress
Setting 13 can be realized using the pressure maintaining valve pipeline in patent CN 106595948A, can more use automatically controlled constant flow tune
Valve is saved to realize, the pressure catheter of constant flow control valve can be set to preposition or postposition.
The regular purge process of the utility model is as follows:
It is controlled by PLC or DCS system, the of the first stop valve 7 of steam blowing pipeline 5 and pressure detecting pipeline 6
The opening and closing of two stop valves 8.Measuring state, 6 second stop valve 7 of pressure detecting pipeline are opened, steam blowing pipeline 5 first
Stop valve 7 is closed；Purging state, 6 second stop valve 7 of pressure detecting pipeline are closed, and 5 first stop valve 7 of steam blowing pipeline is beaten
It opens.Connecting pipe purging executes during clearing up tedge.The utility model is in pressure detecting and purging, with the water seal in coke oven
Valve disc interlocked control, detailed process is as follows:
1), under the conditions of water seal valve disc closes entirely, instruction is periodically issued by PLC or DCS system, passes through the data penetration transmission of DTU
Function sends commands to RTU, and the second stop valve 8 of control is closed, and measurement circuit is closed, and then the first stop valve 7 is opened, and is carried out
Steam blowing；
2) after, purge time arrives, instruction is issued by PLC or DCS system, be first turned on pressure detecting pipeline 6 second cuts
Disconnected valve 8, is then shut off the first stop valve 7 of steam blowing pipeline 5, carries out pressure measurement.
Above embodiments are implemented under premised on technical solutions of the utility model, give detailed embodiment
With specific operating process, but the protection scope of the utility model is not limited to the above embodiments.Side used in above-described embodiment
Method is conventional method unless otherwise instructed.
Claims (4)
1. a kind of coke oven bridge tube raw coke oven gas pressure-measuring system, including sampling probe, differential pressure transmitter, constant flow blowning installation,
It is characterized in that, further including the first stop valve, the second stop valve, special-shaped sleeve three-way connector and three-way connection；
The sampling probe is installed at coke oven coke oven uprising tube bridge tube, and sampling probe outlet connects special-shaped card by sampling main pipe rail
Three-way connection is covered, two-way is separated by special-shaped sleeve three-way connector: steam blowing pipeline and pressure detecting pipeline；The steam
Purging steam is connected by the first stop valve among scavenging pipeline, passes through the second stop valve among the pressure detecting pipeline
Three-way connection is connected, two-way is separated by three-way connection: differential pressure transmitter pipeline and nitrogen blowing pipe, differential pressure transmitter pipeline
Differential pressure transmitter is connected, nitrogen blowing pipe connects air blast by constant flow blowning installation and surveys pressure nitrogen；
The pressure-measuring system further includes RTU and DTU, the differential pressure transmitter, constant flow blowning installation, the first cutting
Valve and the second stop valve pass through electric interfaces and are connected with the I/O port of RTU, and RTU is connected with RS485 communication modes with DTU,
It is communicated wirelessly and is connect with PLC or DCS control system by DTU.
2. a kind of coke oven bridge tube raw coke oven gas pressure-measuring system according to claim 1, which is characterized in that the differential pressure
In transmitter pipeline, differential pressure transmitter front end is also equipped with female branch tee ball valve.
3. a kind of coke oven bridge tube raw coke oven gas pressure-measuring system according to claim 1, which is characterized in that the differential pressure
Transmitter connects the port AI of RTU, the port AO of the described constant flow blowning installation connection RTU, first stop valve and
The port DO of second stop valve connection RTU.
4. a kind of coke oven bridge tube raw coke oven gas pressure-measuring system according to claim 1, which is characterized in that the RTU
And DTU is mounted in the furnace roof control cabinet of coke oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821848939.3U CN208984273U (en) | 2018-11-09 | 2018-11-09 | A kind of coke oven bridge tube raw coke oven gas pressure-measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821848939.3U CN208984273U (en) | 2018-11-09 | 2018-11-09 | A kind of coke oven bridge tube raw coke oven gas pressure-measuring system |
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| Publication Number | Publication Date |
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| CN208984273U true CN208984273U (en) | 2019-06-14 |
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ID=66790773
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| CN201821848939.3U Active CN208984273U (en) | 2018-11-09 | 2018-11-09 | A kind of coke oven bridge tube raw coke oven gas pressure-measuring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357809A (en) * | 2018-11-09 | 2019-02-19 | 中冶焦耐自动化有限公司 | A kind of coke oven bridge tube raw coke oven gas pressure-measuring system and method |
| CN115772414A (en) * | 2022-12-21 | 2023-03-10 | 中冶焦耐自动化有限公司 | System and method for realizing smokeless coal charging of coke oven and pressure stabilization of carbonization chamber |
-
2018
- 2018-11-09 CN CN201821848939.3U patent/CN208984273U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357809A (en) * | 2018-11-09 | 2019-02-19 | 中冶焦耐自动化有限公司 | A kind of coke oven bridge tube raw coke oven gas pressure-measuring system and method |
| CN115772414A (en) * | 2022-12-21 | 2023-03-10 | 中冶焦耐自动化有限公司 | System and method for realizing smokeless coal charging of coke oven and pressure stabilization of carbonization chamber |
| CN115772414B (en) * | 2022-12-21 | 2024-01-26 | 中冶焦耐自动化有限公司 | System and method for realizing smokeless coal charging of coke oven and pressure stabilization of carbonization chamber |
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