CN218786637U - Diffusing device for coal gas diffusing tower - Google Patents
Diffusing device for coal gas diffusing tower Download PDFInfo
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- CN218786637U CN218786637U CN202223473433.8U CN202223473433U CN218786637U CN 218786637 U CN218786637 U CN 218786637U CN 202223473433 U CN202223473433 U CN 202223473433U CN 218786637 U CN218786637 U CN 218786637U
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- pressure
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- valve
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- 239000003034 coal gas Substances 0.000 title description 5
- 230000000740 bleeding effect Effects 0.000 claims abstract description 51
- 230000005611 electricity Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of the gas diffuses, especially, relate to a diffuse device for gas diffuses tower, including main line, branch pipeline, first pressure switch, pressure transmitter, diffuse valve and flowmeter, first pressure switch's inlet end passes through the main line with pressure transmitter connects, in order to detect pressure value in the main line, its end of giving vent to anger passes through divide the pipeline with the flowmeter is connected, the end of giving vent to anger of flowmeter passes through diffuse valve and diffuse the tower and be connected. The utility model has the advantages that: the pressure switch is arranged in the main pipeline and used for detecting the pressure value in the main pipeline, and the flow meter in the branch pipeline is matched to control the opening and closing of the bleeding valve, so that the defect that the pressure transmitter only controls the mode of the bleeding valve according to the pressure value of the main pipeline is overcome to a certain extent, and the hidden danger of a blind control state caused by abnormal pressure can be fundamentally eliminated.
Description
Technical Field
The utility model belongs to the technical field of the coal gas diffuses, especially, relate to a diffuse device for coal gas diffuses tower.
Background
The gas diffusing tower is an essential gas diffusing device for iron and steel enterprises and is used for realizing gas diffusion under accidents or emergency conditions. The control mode has great dependence on the pressure of the main pipe, and can enter a blind control state in case of abnormal diffusion control of pressure measurement, thereby bringing great potential safety hazards to human bodies and equipment. Therefore, a diffusing device for a gas diffusing tower is required to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a diffusing device for gas diffusing tower can solve above-mentioned technical problem fundamentally, eliminates the blind accuse state hidden danger that leads to because of pressure anomaly.
In order to solve the technical problem, the utility model discloses a technical scheme is: a diffusing device for a gas diffusing tower is characterized in that: including main line, branch pipeline, first pressure switch, pressure transmitter, diffuse valve and flowmeter, first pressure switch's inlet end passes through the main line with pressure transmitter connects, in order to detect pressure value in the main line, its end of giving vent to anger passes through branch pipeline with the flowmeter is connected, the end of giving vent to anger of flowmeter passes through diffuse valve and diffuse the tower and be connected, the flowmeter with first pressure switch pressure transmitter with all the electricity is connected between the valve.
Further, the first pressure switch comprises a first upper limit and a first lower limit, when the pressure value in the main pipeline reaches the first upper limit, the bleeding valve is started to bleed, and when the pressure value in the main pipeline reaches the first lower limit, the bleeding valve is closed.
Further, the pressure value of the first upper limit is higher than that of the first lower limit.
Furthermore, the air inlet end of the pressure transmitter is connected with the blast furnace through a second pressure switch.
Furthermore, the second pressure switch comprises a second upper limit and a second lower limit, the pressure value of the second upper limit is higher than the pressure value of the second lower limit, the pressure value of the second lower limit is equal to the pressure value of the first lower limit, and the pressure value of the second upper limit is equal to the pressure value of the first upper limit.
Further, when the pressure value in the main pipeline reaches the first lower limit and the second lower limit at the same time, the bleeding valve is closed, and when the pressure value in the main pipeline reaches any one of the first upper limit and the second upper limit, the bleeding valve is started to perform bleeding.
Further, the pressure transmitter may control the opening and closing of the bleed valve according to a pressure value of the main pipeline measured by the pressure transmitter.
Furthermore, the branch pipeline comprises a first branch pipeline, a second branch pipeline and a third branch pipeline, one end of the first branch pipeline is connected with the first pressure switch, the other end of the first branch pipeline is connected with the first bleeding valve through a first flowmeter, one end of the second branch pipeline is connected with the first pressure switch, the other end of the second branch pipeline is connected with the second bleeding valve through a second flowmeter, one end of the third branch pipeline is connected with the first pressure switch, the other end of the third branch pipeline is connected with the third bleeding valve through a third flowmeter, and when the pressure value of the main pipeline measured by the pressure transmitter reaches a first set value of the pressure value, the first bleeding valve is started to bleed.
Further, when the pressure transmitter detects that the pressure value of the main pipeline continues to increase to a second set value, the second relief valve is started again to perform relief.
Further, when the pressure transmitter detects that the pressure value of the main pipeline continues to increase to a third set value, the third relief valve is started again to perform relief.
The utility model has the advantages and positive effects be: the pressure switch is arranged in the main pipeline and used for detecting the pressure value in the main pipeline, and the flow meter in the branch pipeline is matched to control the opening and closing of the bleeding valve, so that the defect that the pressure transmitter only controls the bleeding valve mode according to the pressure value of the main pipeline is overcome to a certain extent, and the hidden danger of a blind control state caused by abnormal pressure can be fundamentally eliminated.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment provided by the present invention.
In the figure:
1. a main pipeline; 2. distributing pipelines; 21. a first branch; 22. a second branch circuit; 23. a third branch; 3. a first pressure switch; 4. a pressure transmitter; 51. a first flow meter; 52. a second flow meter; 53. a third flow meter; 61. a first bleed valve; 62. a second bleed valve; 63. a third bleed valve; 7. a second pressure switch; 8. a blast furnace.
Detailed Description
The invention will be further described with reference to the following examples and drawings:
the utility model adopts the technical proposal that: a diffusing device for a gas diffusing tower is characterized in that: including main line 1, divide pipeline 2, first pressure switch 3, pressure transmitter 4, diffuse valve and flowmeter, first pressure switch 3's air inlet passes through main line 1 and is connected with pressure transmitter 4, in order to detect the pressure value in the main line 1, it gives vent to anger the end and is connected with the flowmeter through dividing pipeline 2, the end of giving vent to anger of flowmeter is connected with the tower of diffusing through the valve of diffusing, the flowmeter is connected with first pressure switch 3, equal electricity is connected between pressure transmitter 4 and the valve of diffusing. Set up first pressure switch 3 in main pipeline 1 for detect the pressure value in main pipeline 1, the flow variation who cooperates in the branch pipeline 2 simultaneously carries out the diffusion control, even pressure transmitter 4 appears unusually, still can cooperate the flowmeter in the branch pipeline 2 to come effective control diffusion valve's opening and closing through first pressure switch 3, this defect of diffusing the valve mode has been remedied to a certain extent to pressure transmitter 4 and only controls according to the pressure value of main pipeline 1, can fundamentally eliminate because of the blind accuse state hidden danger that pressure anomaly leads to, guarantee equipment normal operating.
Preferably, the first pressure switch 3 includes a first upper limit and a first lower limit, when the pressure value in the main pipeline 1 reaches the first upper limit, the bleeding valve is started to perform bleeding, and when the pressure value in the main pipeline 1 reaches the first lower limit, the bleeding valve is closed to stop bleeding.
Preferably, the pressure value of the first upper limit is higher than the pressure value of the first lower limit. In this embodiment, first pressure switch 3 and second pressure switch 7 are located pressure transmitter 4's both sides respectively, and the distance of the equal distance from pressure transmitter is 1m, and coal gas passes through second pressure switch 7, pressure transmitter 4 and first pressure switch 3 in proper order, and two pressure switches all are arranged in detecting the pressure value in main pipeline 1, and it is spacing about can set for on the pressure switch body according to actual operating conditions.
Preferably, the air inlet end of the pressure transmitter 4 is connected with the blast furnace 8 through a second pressure switch 7.
Preferably, the first pressure switch 3, the second pressure switch 7, the flow meter and the bleeding valve are electrically connected with the PLC controller through sensors. In this embodiment, the PLC controller can receive the feedback signals of the first pressure switch 3, the second pressure switch 7 and the flowmeter at the same time and control according to the feedback information, and both can control the bleeding state of the bleeding valve according to the flow value measured by the upper and lower limit cooperation flowmeters of the first pressure switch 3 and the second pressure switch 7, and can also control the bleeding mode of the single pipe, the double pipe and the triple pipe according to the pressure value of the main pipeline 1 measured by the pressure transmitter 4, thereby realizing the control bleeding method combining the two, and being safer and more stable.
Preferably, the second pressure switch 7 includes a second upper limit and a second lower limit, a pressure value of the second upper limit is higher than a pressure value of the second lower limit, the pressure value of the second lower limit is equal to the pressure value of the first lower limit, and the pressure value of the second upper limit is equal to the pressure value of the first upper limit.
Preferably, the bleeding valve is closed when the pressure value in the main line 1 reaches the first lower limit and the second lower limit at the same time, and the bleeding valve is actuated to bleed when the pressure value in the main line 1 reaches any one of the first upper limit and the second upper limit. In this embodiment, when the PLC controller receives the feedback of the high limit signal of any pressure switch, the bleeding valve can be started to bleed, and at the same time, if the flow rate of the first branch 21 is within the set value of the first flowmeter 51, only a single tube is needed to bleed, if the flow rate value of the first branch 21 exceeds the set value of the first flowmeter 51, a double tube bleeding is started, if the flow rate of the second branch 22 exceeds the set value of the second flowmeter 52, a three tube bleeding is started, and the pressure switch is matched with the bleeding mode of the flowmeter, so that the device is in a bleeding control standby state at any time, and the stability of operation is ensured; after the PLC receives low limit signals of the two pressure switches at the same time, the bleeding valve is closed, bleeding is stopped, the phenomena of misoperation and refusal operation of the pressure transmitter 4 can be effectively prevented, the control method is safe and reliable, the device provides double insurance for normal operation of the bleeding tower, and safety guarantee is provided for people and equipment.
Preferably, the pressure transmitter 4 can control the opening and closing of the bleed valve according to the pressure value of the main line 1 measured by it. In this embodiment, the pressure value measured by the pressure actuator 4 includes a first set value, a second set value, and a third set value, and the values thereof sequentially increase, and when the pressure value in the main line 1 reaches the first set value, the first bleed valve 61 is opened to perform single-pipe bleeding, and when the pressure value in the main line 1 continues to increase to the second set value, the second bleed valve 62 is opened to perform double-pipe bleeding, and when the pressure value in the main line 1 continues to increase to the third set value, the third bleed valve 63 is opened to perform three-pipe bleeding. That is, the pressure transmitter 4 controls the bleeding mode of the single pipe, the double pipe, and the triple pipe according to the magnitude of the pressure in the main pipe 1.
Preferably, the branch pipe 2 includes a first branch 21, a second branch 22 and a third branch 23, one end of the first branch 21 is connected to the first pressure switch 3, the other end of the first branch is connected to the first bleeding valve 61 through a first flowmeter 51, one end of the second branch 22 is connected to the first pressure switch 3, the other end of the second branch is connected to the second bleeding valve 62 through a second flowmeter 52, one end of the third branch 23 is connected to the first pressure switch 3, the other end of the third branch is connected to the third bleeding valve 63 through a third flowmeter 53, and when the pressure value of the main pipe 1 measured by the pressure transmitter 4 reaches a first set value, the first bleeding valve 61 is activated to bleed.
Preferably, when the pressure transmitter 4 detects that the pressure value of the main pipeline 1 continues to increase to the second set value, the second bleed valve 62 is actuated to bleed.
Preferably, when the pressure transmitter 4 detects that the pressure value of the main pipeline 1 continues to increase to the third set value, the third bleed valve 63 is actuated to bleed.
During the use, when pressure transmitter 4 measured the pressure value in the main pipeline 1 and reached its first set point, start first relief valve 61 and carry out single pipe and diffuse, when pressure transmitter 4 measured the pressure value in the main pipeline 1 and continued to increase to its second set point, start second relief valve 62 and carry out double-barrelled and diffuse, when pressure transmitter 4 measured the pressure value in the main pipeline 1 and continued to increase to its third set point, start third relief valve 63 and carry out the three-pipe and diffuse. When the pressure transmitter 4 breaks down and can not detect the pressure of the main pipeline 1, the first pressure switch 3 and the second pressure switch 7 are started, at the moment, if the PLC receives the feedback of the high limit signal of any one pressure switch, the flow of the branch pipeline 2 is matched to perform single-pipe, double-pipe and three-pipe diffusion, and after the PLC receives the low limit signals of the two pressure switches simultaneously, the diffusion valve is closed and the diffusion is stopped.
The utility model has the advantages and positive effects be: the pressure switch is arranged in the main pipeline and used for detecting the pressure value in the main pipeline, and the flow meter in the branch pipeline is matched to control the opening and closing of the bleeding valve, so that the defect that the pressure transmitter only controls the bleeding valve according to the pressure value of the main pipeline is overcome to a certain extent, and the hidden danger of blind control state caused by abnormal pressure can be fundamentally eliminated.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. The equivalent changes and improvements made according to the application scope of the present invention should be still included in the patent coverage of the present invention.
Claims (10)
1. A diffusing device for a gas diffusing tower is characterized in that: including main line, branch pipeline, first pressure switch, pressure transmitter, diffuse valve and flowmeter, first pressure switch's inlet end passes through the main line with pressure transmitter connects, in order to detect pressure value in the main line, its end of giving vent to anger passes through branch pipeline with the flowmeter is connected, the end of giving vent to anger of flowmeter passes through diffuse valve and diffuse the tower and be connected, the flowmeter with first pressure switch pressure transmitter with all the electricity is connected between the valve.
2. The diffusing device for gas diffusing towers according to claim 1, characterized in that: the first pressure switch comprises a first upper limit and a first lower limit, when the pressure value in the main pipeline reaches the first upper limit, the bleeding valve is started to bleed, and when the pressure value in the main pipeline reaches the first lower limit, the bleeding valve is closed.
3. The diffusing device for gas diffusing towers according to claim 2, characterized in that: the pressure value of the first upper limit is higher than that of the first lower limit.
4. The diffusing device for gas diffusing towers according to claim 2, characterized in that: and the air inlet end of the pressure transmitter is connected with the blast furnace through a second pressure switch.
5. The diffusing device for gas diffusing towers according to claim 4, characterized in that: the second pressure switch comprises a second upper limit and a second lower limit, the pressure value of the second upper limit is higher than the pressure value of the second lower limit, the pressure value of the second lower limit is equal to the pressure value of the first lower limit, and the pressure value of the second upper limit is equal to the pressure value of the first upper limit.
6. The diffusing device for gas diffusing towers according to claim 5, characterized in that: when the pressure value in the main pipeline reaches the first lower limit and the second lower limit at the same time, the relief valve is closed, and when the pressure value in the main pipeline reaches any one of the first upper limit and the second upper limit, the relief valve is started to perform relief.
7. The diffusing device for gas diffusing towers according to claim 5, characterized in that: the pressure transmitter can control the opening and closing of the bleeding valve according to the pressure value of the main pipeline measured by the pressure transmitter.
8. The diffusing device for gas diffusing towers according to claim 7, characterized in that: the branch pipeline comprises a first branch pipeline, a second branch pipeline and a third branch pipeline, one end of the first branch pipeline is connected with the first pressure switch, the other end of the first branch pipeline is connected with the first bleeding valve through a first flow meter, one end of the second branch pipeline is connected with the first pressure switch, the other end of the second branch pipeline is connected with the second bleeding valve through a second flow meter, one end of the third branch pipeline is connected with the first pressure switch, the other end of the third branch pipeline is connected with the third bleeding valve through a third flow meter, and when the pressure value of the main pipeline measured by the pressure transmitter reaches the first set value of the main pipeline, the first bleeding valve is started to bleed.
9. The diffusing device for gas diffusing towers according to claim 8, characterized in that: and when the pressure transmitter detects that the pressure value of the main pipeline continues to increase to a second set value, starting the second bleeding valve for bleeding.
10. The diffusing device for gas diffusing towers according to claim 9, characterized in that: and when the pressure transmitter detects that the pressure value of the main pipeline continues to increase to a third set value, starting the third relief valve for relief.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223473433.8U CN218786637U (en) | 2022-12-26 | 2022-12-26 | Diffusing device for coal gas diffusing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223473433.8U CN218786637U (en) | 2022-12-26 | 2022-12-26 | Diffusing device for coal gas diffusing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218786637U true CN218786637U (en) | 2023-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223473433.8U Active CN218786637U (en) | 2022-12-26 | 2022-12-26 | Diffusing device for coal gas diffusing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218786637U (en) |
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2022
- 2022-12-26 CN CN202223473433.8U patent/CN218786637U/en active Active
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