CN217103966U - Automatic ventilation device for gas valve station - Google Patents
Automatic ventilation device for gas valve station Download PDFInfo
- Publication number
- CN217103966U CN217103966U CN202123202368.0U CN202123202368U CN217103966U CN 217103966 U CN217103966 U CN 217103966U CN 202123202368 U CN202123202368 U CN 202123202368U CN 217103966 U CN217103966 U CN 217103966U
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- gas valve
- valve station
- travel switch
- contactor
- automatic ventilation
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Abstract
The utility model discloses an automatic ventilation device for a gas valve station, which comprises a gas valve station and an axial flow fan; the axial flow fan is arranged on the inner side of the gas valve station, a contactor is further arranged on the inner side of the gas valve station, and a main contact of the contactor is connected to a power supply line of the axial flow fan in series; a coil wiring terminal of the contactor is connected to a power supply end through a travel switch; the travel switch is installed at the opening and closing detection position of the door plate of the gas valve station. The utility model discloses an automatic ventilation unit that gas valve station was used interlocks in the twinkling of an eye and opens axial fan opening the door, under the prerequisite of guaranteeing safety, has practiced thrift the power consumption again.
Description
Technical Field
The utility model relates to a converter bottom blowing valve station fortune dimension device, concretely relates to automatic ventilation unit that gas valve station was used belongs to converter bottom blowing valve station technical field.
Background
The converter bottom blowing process comprises the following steps: the bottom blowing gas is supplied to each ventilating element at the bottom of the converter through a rotary joint on a trunnion of a trunnion ring of the converter after being regulated in pressure and flow at a bottom blowing valve station of the converter, and is blown into a molten pool through the ventilating elements during smelting; the converter bottom blowing valve station belongs to a closed space, nitrogen and argon are contained in the converter bottom blowing valve station and are inert gases, an axial flow fan is started for ventilation when the converter bottom blowing valve station enters the valve station for operation and maintenance, and the converter bottom blowing valve station can enter the converter bottom blowing valve station after the content of oxygen is detected to be normal; but the axial fan switch is indoor at present, and personnel get into and open during the ventilation, and personnel stifle hidden danger also exists moreover that personnel forget to open axial fan and cause personnel to stifle.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an automatic ventilation unit that gas valve station was used opens axial fan in the interlocking in the twinkling of an eye opening, under the prerequisite of guaranteeing safety, has practiced thrift the power consumption again.
The utility model discloses an automatic ventilation unit that gas valve station was used installs the control box of an built-in contactor additional in gas valve station room, and valve station gate installation normally opens some travel switch, and the gate is when opening, and travel switch is electrified, and the actuation of interlocking control contactor, axial fan automatic start operation, when the gate is closed, travel switch loses the electricity, and the disconnection of interlocking control contactor, axial fan stall, its specifically as follows: comprises a gas valve station and an axial flow fan; the axial flow fan is arranged on the inner side of the gas valve station, a contactor is further arranged on the inner side of the gas valve station, and a main contact of the contactor is connected to a power supply line of the axial flow fan in series; a coil wiring terminal of the contactor is connected to a power supply end through a travel switch; the travel switch is installed at the opening and closing detection position of the door plate of the gas valve station.
Further, the door frame opening and closing detection position comprises an outer frame body used for installing a travel switch, and a touch plate body which is fixed on a door plate of the gas valve station and is movably matched with the travel switch.
Furthermore, the travel switch is a normally-open mechanical travel switch or a normally-open photoelectric travel switch, when the mechanical travel switch is installed, the corresponding moving contact and moving contact are selected to open the door panel, and the travel switch is powered on.
Furthermore, two ends of the travel switch are connected with a human body pyroelectric switch module; the human body heat release electric switch module is installed on the inner side of the gas valve station, after maintenance personnel enter the gas valve station, the human body heat release electric switch module always detects signals, the travel switch and the human body heat release electric switch module form a passage, when the gas valve station is turned off by mistake, the passage of the travel switch is disconnected, the human body heat release electric switch module continues to be switched on, the axial flow fan is in a working state, and the risk that the maintenance personnel suffocate due to misoperation can be avoided.
Compared with the prior art, the utility model discloses an automatic ventilation unit that gas valve station was used can realize opening the door in the twinkling of an eye the interlocking open axial fan to when the maintainer operation, make axial fan be in operating condition all the time, until the maintenance maintainer withdraws from gas valve station after, axial fan self-closing has practiced thrift the power consumption again under the prerequisite of guaranteeing safety.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of an electric control structure according to embodiment 1 of the present invention.
Fig. 3 is a schematic diagram of an electric control structure according to embodiment 2 of the present invention.
Detailed Description
Example 1:
the automatic ventilation device for the gas valve station shown in fig. 1 and 2 comprises a gas valve station 1 and an axial flow fan M; the axial flow fan M is arranged on the inner side of the gas valve station 1, a contactor KM1 is further arranged on the inner side of the gas valve station 1, and a main contact of the contactor KM1 is connected to a power line of the axial flow fan M in series; a coil terminal of the contactor KM1 is connected to a power supply end through a travel switch SB1-SQ 1; the travel switches SB1-SQ1 are installed at the opening and closing detection position of the gas valve station door plate.
The door frame opening and closing detection position comprises an outer frame body used for installing a travel switch SB1-SQ1, and a touch plate body which is fixed on a door plate of the gas valve station and is movably matched with the travel switch. The travel switch is a normally-open mechanical travel switch or a normally-open photoelectric travel switch, when the mechanical travel switch is installed, the corresponding moving contact and moving contact are selected to open the door panel, and the travel switch is electrified.
In the implementation, a control box is additionally arranged in the bottom-blowing valve station chamber 1, a 32A contactor KM1 is arranged in the control box, and a control loop is used for paying off and wiring; a normally open travel switch is installed at the gate of the valve station, and a support (a touch plate body) is added on the gate; closing the gate, disconnecting the travel switch, opening the gate and closing the travel switch; paying off to a control box and accessing into a circuit according to a drawing; and (5) power transmission debugging, wherein the door opening fan is opened, and the door closing fan is closed.
Example 2:
in the automatic ventilation device for the gas valve station shown in fig. 3, two ends of the travel switches SB1-SQ1 are connected with a human body pyroelectric switch module SQ 2; human heat release electric switch module SQ2 installs in gas valve station 1 inboard, after maintainer entered into the gas valve station, human heat release electric switch module SQ2 detected the signal all the time, and travel switch and human heat release electric switch module all form the route, and when the gas valve station was closed by the mistake, at this moment, the travel switch route disconnection, human heat release electric switch module continued the switch-on, and axial fan is in operating condition, can avoid the malfunction to cause maintainer risk of suffocating.
The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.
Claims (4)
1. An automatic ventilation device for a gas valve station comprises the gas valve station and an axial flow fan; axial fan installs in gas valve station inboard, its characterized in that: the inner side of the gas valve station is also provided with a contactor, and a main contact of the contactor is connected to a power line of the axial flow fan in series; a coil wiring terminal of the contactor is connected to a power supply end through a travel switch; the travel switch is installed at the opening and closing detection position of the door plate of the gas valve station.
2. An automatic ventilation device for a gas valve station according to claim 1, characterized in that: the door frame opening and closing detection position comprises an outer frame body used for installing a travel switch, and a touch plate body which is fixed on a door plate of the gas valve station and is movably matched with the travel switch.
3. An automatic ventilation device for a gas valve station according to claim 1, characterized in that: the travel switch is a normally open mechanical travel switch or a normally open photoelectric travel switch.
4. An automatic ventilation device for a gas valve station according to claim 1, characterized in that: two ends of the travel switch are connected with a human body pyroelectric switch module in parallel; the human body pyroelectric switch module is installed on the inner side of the gas valve station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123202368.0U CN217103966U (en) | 2021-12-20 | 2021-12-20 | Automatic ventilation device for gas valve station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123202368.0U CN217103966U (en) | 2021-12-20 | 2021-12-20 | Automatic ventilation device for gas valve station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217103966U true CN217103966U (en) | 2022-08-02 |
Family
ID=82590646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123202368.0U Active CN217103966U (en) | 2021-12-20 | 2021-12-20 | Automatic ventilation device for gas valve station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217103966U (en) |
-
2021
- 2021-12-20 CN CN202123202368.0U patent/CN217103966U/en active Active
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