CN215109065U - Gas protection structure for gas power generation - Google Patents
Gas protection structure for gas power generation Download PDFInfo
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- CN215109065U CN215109065U CN202121473526.3U CN202121473526U CN215109065U CN 215109065 U CN215109065 U CN 215109065U CN 202121473526 U CN202121473526 U CN 202121473526U CN 215109065 U CN215109065 U CN 215109065U
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Abstract
The utility model discloses a gas protection structure for gas power generation, which comprises a power generation boiler control system, a gas production control system and a rapid communication device arranged between the power generation boiler control system and the gas production control system; the rapid communication device comprises a first switching value module and a second switching value module which are connected through optical fibers, the first switching value module is connected with a power generation boiler controller of the power generation boiler control system, and the second switching value module is connected with a diffusion tower controller of the coal gas production control system; the first switching value module collects the switching value of the power generation boiler controller and transmits the switching value to the second switching value module, and the second switching value module receives the switching value and transmits a signal to the diffusing tower controller to control the opening and closing of the diffusing valve. The release valve is opened to release pressure, so that the water seal of the gas pipeline is effectively prevented from being broken down, the personnel poisoning accident caused by gas leakage is avoided, and the life safety is ensured after technical improvement and innovation.
Description
Technical Field
The utility model belongs to the technical field of the electricity generation, concretely relates to a coal gas protection architecture for coal gas power generation.
Background
The gas power generation boiler is fed to the gas boiler through a blast furnace gas main pipe to be combusted to generate steam, and then the steam turbine drags the generator to generate power. The boiler needs a large amount of coal gas during normal production, when power generation equipment breaks down, the boiler is immediately shut down to cause the blast furnace gas to be immediately stopped, at the moment, the pressure of a gas main pipe is instantly increased, and water seal of a gas pipeline network can be punctured to cause gas leakage when the pressure is serious, so that gas poisoning accidents of personnel are caused.
Generally, a boiler MFT shutdown signal is accessed to a PLC system through a cable, then a communication program is made in the PLC, a communication module is configured, communication conversion optical fiber equipment is processed and then can be sent to a remote ironmaking PLC, the opposite side also needs to compile a corresponding communication program in the PLC to complete a series of complicated control, communication interruption often occurs in the normal use process, interruption can be found only through an upper computer after interruption, the reliability is extremely low, and accidents are expanded. The water seal of the gas pipeline around the boiler can not be effectively ensured to be broken down at any time, and the poisoning accident of personnel can be caused very possibly.
Therefore, a novel gas protection structure capable of fast reaction is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide a coal gas protection architecture for gas power generation, can be timely and reliably carry out the intersystem communication, improve the reliability of coal gas protection.
In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:
the utility model provides a gas protection structure for gas power generation, which comprises a power generation boiler control system, a gas production control system and a rapid communication device arranged between the power generation boiler control system and the gas production control system; the rapid communication device comprises a first switching value module and a second switching value module which are connected through optical fibers, the first switching value module is connected with a power generation boiler controller of the power generation boiler control system, and the second switching value module is connected with a diffusion tower controller of the coal gas production control system; the first switching value module collects the switching value of the power generation boiler controller and transmits the switching value to the second switching value module, and the second switching value module receives the switching value and transmits a signal to the diffusing tower controller to control the opening and closing of the diffusing valve.
Further, the quick communication device is provided with one or more than one quick communication device.
Further, the first switching value module and the second switching value module are both RIO3508 switching value modules.
Furthermore, the quick communication device also comprises an alarm relay for detecting the on-off of the first switching value module and the second switching value module.
Furthermore, the structure also comprises an air pressure alarm and a gas concentration alarm which are connected with the gas production control system.
Further, the structure also comprises a diffusing tower ignition device arranged at the outlet of the diffusing tower, wherein the diffusing tower ignition device comprises a turnover cover, a high-pressure igniter and an ignition trigger head; the device comprises a cover, a high-pressure igniter, a high-pressure trigger head, a high-pressure trigger switch and a high-pressure switch, wherein the cover is arranged at an outlet of the diffusing tower through a hinge; the pressure-contact limit switch is connected in series between the high-voltage igniter and the ignition trigger head and used for starting the high-voltage igniter when the flip cover is opened.
Compared with the prior art, the utility model discloses the beneficial effect who reaches:
1. aiming at the hidden danger in the prior art, the utility model adds the interlock of the gas power generation boiler, when the boiler is shut down emergently, the relief valve is opened to relieve the pressure by utilizing the optical fiber remote control through the switching value module, thereby effectively ensuring that the water seal of the gas pipeline is not punctured, avoiding the poisoning accident of the personnel caused by gas leakage, and ensuring the life safety after the innovation by technical improvement;
2. the utility model discloses be equipped with according to the high energy of atmospheric pressure intermittent type nature ignition and diffuse tower ignition, when flip opened, limit switch-on high pressure point firearm and ignition trigger head this moment, will follow the combustible gas that flip department overflowed and light, the better coal gas protection that carries on prevents that the phenomenon of personnel's poisoning from taking place.
Drawings
Fig. 1 is a schematic diagram of the control structure of the present invention.
Fig. 2 is a schematic structural view of the high-energy diffusion tower ignition device of the present invention.
In the figure:
1. a power generation boiler control system; 2. a gas production control system; 3. a first switching value module; 4. a second switching value module; 5. an optical fiber; 6. a power generation boiler controller; 7. a purge column controller; 8. a blow-off tower; 9. an annular plate; 10. a reverse gland is prevented; 11. a guide bar; 12. a hinge; 13. a cover is turned; 14. pressing and touching a limit switch; 15. a high pressure igniter; 16. an ignition trigger head; 17. a cylinder; 18. a lever.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of describing the present embodiment and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, cannot be construed as limiting the present embodiment.
The first embodiment is as follows:
the utility model provides a gas protection structure for gas power generation, which comprises a power generation boiler control system 1, a gas production control system 2 and a rapid communication device arranged between the power generation boiler control system 1 and the gas production control system 2; the rapid communication device comprises a first switching value module 3 and a second switching value module 4 which are connected through an optical fiber 5, wherein the first switching value module 3 is connected with a power generation boiler controller 6 of the power generation boiler control system 1, and the second switching value module 4 is connected with a diffusion tower 8 controller 7 of the coal gas production control system 2; the first switching value module 3 collects the switching value of the power generation boiler controller 6 and transmits the switching value to the second switching value module 4, and the second switching value module 4 receives the switching value and transmits a signal to the diffusing tower 8 controller 7 to control the opening and closing of the diffusing valve.
The implementation principle is as follows: the gas protection structure is suitable for blast furnace gas power generation users of metallurgical enterprises, if a gas boiler breaks down, an emergency shutdown signal of a boiler control system needs the contact module to process and then transmits the signal to an iron-making gas production control system 2 with the distance of several kilometers, the control signal receives the shutdown signal and requires to open a blow-off valve, the water seal of a gas pipeline around the boiler is effectively guaranteed not to be broken, personnel poisoning accidents caused by gas leakage are avoided, life safety is guaranteed after technical innovation, and an effective control method is realized.
Example two:
the embodiment provides a gas protection structure for gas power generation, which comprises a power generation boiler control system 1, a gas production control system 2 and a quick communication device arranged between the power generation boiler control system 1 and the gas production control system 2; the rapid communication device comprises a first switching value module 3 and a second switching value module 4 which are connected through an optical fiber 5, wherein the first switching value module 3 is connected with a power generation boiler controller 6 of the power generation boiler control system 1, and the second switching value module 4 is connected with a diffusion tower 8 controller 7 of the coal gas production control system 2; the first switching value module 3 collects the switching value of the power generation boiler controller 6 and transmits the switching value to the second switching value module 4, and the second switching value module 4 receives the switching value and transmits a signal to the diffusing tower 8 controller 7 to control the opening and closing of the diffusing valve.
The quick communication devices are one or more, two groups of quick communication devices are preferably arranged to ensure the safety of the structure, and any one group of quick communication devices acts to trigger an alarm, so that the safety protection is tighter. Each group of rapid communication devices is provided with an alarm relay for detecting the on-off of the first switching value module 3 and the second switching value module 4.
The first switching value module 3 and the second switching value module 4 both adopt RIO3508 switching value modules.
The gas production control system 2 is connected with a gas pressure alarm and a gas concentration alarm, and when the pressure and the concentration of the gas are overlarge, the diffusing tower 8 is forcibly opened to evacuate the gas.
The diffusing tower 8 is provided with a diffusing tower ignition device which is used for igniting coal gas escaping from the diffusing tower 8, the diffusing tower ignition device comprises a diffusing tower 8 ignition device arranged at the outlet of the diffusing tower 8, and the diffusing tower 8 ignition device comprises a turnover cover 13, a high-pressure igniter 15 and an ignition trigger head 16; the flip cover 13 is installed at the outlet of the diffusing tower 8 through a hinge 12, a press-touch limit switch 14 is installed on the outer side of the flip cover 13, a high-voltage igniter 15 is fixedly installed at the outlet of the diffusing tower 8, and an ignition trigger head 16 is installed at the top end of the high-voltage igniter 15; the press-contact limit switch 14 is connected in series between the high-voltage igniter 15 and the ignition trigger head 16 and is used for switching on the high-voltage igniter 15 and the ignition trigger head 16 when the flip cover 13 is opened.
The diffusing tower 8 is of a round pipe body structure, at least one layer of annular plate 9 is fixed in the middle of the inner wall of the diffusing tower 8, a round opening is formed in the middle of the annular plate 9, an anti-reverse gland 10 is buckled on the round opening, guide rods 11 are evenly arranged on the side of the anti-reverse gland 10, a hinge 12 is arranged on the inner side of the opening end of the diffusing tower 8, and the hinge 12 is fixedly installed on one side of a flip cover 13.
In this embodiment, when the mixed gas containing combustible material enters the top end of the diffusing tower 8 from the bottom end thereof and needs to pass through the circular opening in the middle of the annular plate 9, at this time, if the pressure of the diffusing tower 8 is relatively high, the pressure pushes up the anti-reverse pressing cover 10, and enters the gas chamber in the upper layer from the gap of the anti-reverse pressing cover 10 until reaching the opening in the top end of the diffusing tower 8, at this time, a high pressure region is formed between the annular plate 9 and the flip cover 13, and this high pressure region can gather the quantity and concentration of the combustible gas to make it reach the critical point of the combustion concentration, so as to facilitate combustion, when the concentration of the combustible gas reaches the set value, the gas pressure will lift up the flip cover 13 and emit from the opening of the flip cover 13, when the flip cover 13 is opened, the contact of the limit switch 14 is pressed on the high pressure igniter 15 and the ignition head 16, the ignition trigger head 16 emits high voltage to ignite the combustible gas overflowing from the flip cover 13, and in a normal state, when the flip cover 13 presses and contacts the limit switch 14, the combustible gas is not discharged and the lead of the ignition trigger head 16 is not connected. The other side of the top end of the diffusing tower 8 is provided with an air cylinder 17, and a telescopic shaft of the air cylinder 17 is connected with one side of the turnover cover 13 through a lever.
In this embodiment, the cylinder 17 is used for two purposes, one is used for the manual work to open and close flip 13 and control, realizes automation and controllability of the ignition device of the high-energy emission tower 8, and the other is to pressurize the flip 13, avoids the flip 13 to pressurize the gathering area under the state that the combustible gas content is less, after the concentration of the combustible gas reaches the set value, releases the flip 13 through the cylinder 17, and the combustible gas will gush out at this moment, is ignited by the ignition trigger head 16. The working principle and the using process of the ignition device are as follows: when the mixed gas containing combustible enters the top end of the diffusing tower 8 from the bottom end thereof and needs to pass through the circular opening at the middle part of the annular plate 9, at this time, if the air pressure at the bottom end of the diffusing tower 8 is larger, the bottom air pressure jacks up the anti-reverse pressing cover 10, the mixed gas enters the air chamber at the upper layer from the gap of the anti-reverse pressing cover 10 until reaching the opening at the top end of the diffusing tower 8, at this time, a high pressure area is formed between the annular plate 9 and the flip cover 13, the high pressure area can gather the quantity and the concentration of the combustible gas to enable the combustible gas to reach the critical point of the combustion concentration, so as to facilitate combustion, when the concentration of the combustible gas reaches the set value, the air pressure can lift up the flip cover 13 and be emitted from the opening of the flip cover 13, when the flip cover 13 is opened, the part pressed on the pressure contact limit switch 14 leaves the contact of the limit switch, at this time, the limit switch is connected with the high pressure igniter 15 and the ignition trigger 16, so that the ignition trigger 16 emits high voltage electricity, the combustible gas overflowed from the flip cover 13 is ignited, and in a normal state, when the flip cover 13 presses and contacts the limit switch 14, the combustible gas is not discharged, and the lead of the ignition trigger head 16 is not connected.
In addition, the outlet of the diffusing tower is provided with an atomizing sprayer which absorbs and treats incombustible gas or dust to reduce the harm to the atmospheric environment, at the moment, when the flip cover 13 is jacked up by the gas in the diffusing tower 8 main body, the self-reset valve is triggered, the self-reset valve can open the atomizing sprayer to absorb and purify the gas containing harmful substances, and if the flip cover 13 falls down, the self-reset valve can automatically close the atomizing sprayer.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (6)
1. A gas protection structure for gas power generation is characterized by comprising a power generation boiler control system, a gas production control system and a quick communication device arranged between the power generation boiler control system and the gas production control system;
the rapid communication device comprises a first switching value module and a second switching value module which are connected through optical fibers, the first switching value module is connected with a power generation boiler controller of the power generation boiler control system, and the second switching value module is connected with a diffusion tower controller of the coal gas production control system;
the first switching value module collects the switching value of the power generation boiler controller and transmits the switching value to the second switching value module, and the second switching value module receives the switching value and transmits a signal to the diffusing tower controller to control the opening and closing of the diffusing valve.
2. The gas protection structure for gas power generation according to claim 1, wherein said rapid communication means is provided with one or more.
3. The gas protection structure for gas power generation according to claim 1, wherein said first switching value module and said second switching value module are both RIO3508 switching value modules.
4. The gas protection structure for gas power generation according to claim 1, wherein said quick communication means further comprises an alarm relay for detecting the make-and-break of the contact module.
5. The gas protection structure for gas power generation according to claim 1, further comprising a gas pressure alarm and a gas concentration alarm connected to a gas production control system.
6. The gas protection structure for gas power generation according to claim 1, further comprising a diffusion tower ignition device disposed at an outlet of the diffusion tower, the diffusion tower ignition device comprising a flip cover, a high pressure igniter, and an ignition trigger; the device comprises a cover, a high-pressure igniter, a high-pressure trigger head, a high-pressure trigger switch and a high-pressure switch, wherein the cover is arranged at an outlet of the diffusing tower through a hinge; the pressure-contact limit switch is connected in series between the high-voltage igniter and the ignition trigger head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121473526.3U CN215109065U (en) | 2021-06-30 | 2021-06-30 | Gas protection structure for gas power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121473526.3U CN215109065U (en) | 2021-06-30 | 2021-06-30 | Gas protection structure for gas power generation |
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| Publication Number | Publication Date |
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| CN215109065U true CN215109065U (en) | 2021-12-10 |
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| CN202121473526.3U Active CN215109065U (en) | 2021-06-30 | 2021-06-30 | Gas protection structure for gas power generation |
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- 2021-06-30 CN CN202121473526.3U patent/CN215109065U/en active Active
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