CN211411388U - Flue gas denitration device of gas power generation equipment - Google Patents
Flue gas denitration device of gas power generation equipment Download PDFInfo
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- CN211411388U CN211411388U CN201922222973.0U CN201922222973U CN211411388U CN 211411388 U CN211411388 U CN 211411388U CN 201922222973 U CN201922222973 U CN 201922222973U CN 211411388 U CN211411388 U CN 211411388U
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- flue gas
- dust removal
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Abstract
The utility model relates to a flue gas denitration device of gas power generation equipment, including flue gas compressor pump, dust collector, denitrification facility, NOXMonitoring devices, alkali lye absorption tank, controlling means, flue gas compressor pump set up in flue gas pipeline exit, and the gas outlet end and the dust collector's of flue gas compressor pump inlet end are connected, and dust collector is inside to be equipped with through the hydraulic pressure trace of hydraulic means control, and dust collector is inside still to be arrayed 3 at least dust removal filter screens, dust removalThe filter screen is obliquely arrayed inside the dust removal device, at least 3 barrier blocks are arrayed at the top inside the dust removal device, the array spacing between each barrier block and each dust removal filter screen is consistent, the number of the barrier blocks is consistent with that of the dust removal filter screens, the lower ends of the dust removal filter screens are connected with a hydraulic linkage rod, through holes for smoke to pass through are formed in the dust removal filter screens, and the through holes of the adjacent dust removal filter screens are arranged in a staggered mode; can realize removing dust to the high efficiency of flue gas, solve the problem that dusty flue gas gets into denitrification facility and influences the denitration effect.
Description
Technical Field
The utility model relates to a tail gas treatment technique, especially a flue gas denitration device of gas power generation equipment.
Background
Denitration of flue gas, i.e. the removal of NO producedXReduction to N2Thereby removing NO in the smokeX，In the process of denitration by using the SNCR process, because the flue gas contains a large amount of dust, after the dust enters the denitration device by using the SNCR process along with the flue gas, the dust can be mixed in a catalyst of the denitration device, so that the denitration device is blocked; the denitration rate of the denitration by the SNCR process is 30-50%, and NO still exists in the flue gas after the flue gas denitrationXThe content is too high, and the problem that the direct discharge does not reach the standard exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas power generation facility's flue gas denitration device for solve the dust in the flue gas among the current flue gas denitration in-process and get into denitration device easily and block up denitration device and cause equipment to block up and influence denitration effect, NO in the flue gas after the denitration treatmentXThe content is too high to reach the emission standard.
In order to solve the problem, the utility model provides a flue gas denitration device of gas power generation equipment, including flue gas compressor pump, dust collector, denitrification facility, NOXMonitoring devices, alkali lye absorption tank, controlling means, the flue gas compressor pump sets up in flue gas pipeline exit, the gas outlet end of flue gas compressor pump with dust collector's inlet end is connected, the inside hydraulic pressure trace that is equipped with through hydraulic means control of dust collector, the inside at least 3 dust removal filter screen of array that go back of dust collector, dust removal filter screen slope array is in inside dust collector, the inside top array of dust collector sets up 3 at least obstacle pieces, obstacle piece with the array interval of dust removal filter screen is unanimous, the obstacle piece with the figure of dust removal filter screen is unanimous, the lower extreme of dust removal filter screen with the hydraulic pressureThe linkage rod is connected, be equipped with the through-hole that supplies the flue gas to pass through on the dust removal filter screen, adjacent the through-hole staggered arrangement of dust removal filter screen.
The utility model provides a flue gas denitration device of gas power generation equipment still has following technical characteristic:
further, the gas outlet end of the dust removal device is connected with the flue gas inlet of the denitration device, and the NO isXA monitoring device is arranged at the gas outlet of the denitration device, and the NO isXThe monitoring device is electrically connected with the control device.
Furthermore, a three-way valve is arranged at the gas outlet, a first interface of the three-way valve is communicated with the alkali liquor absorption pool through a pipeline, and a second interface of the three-way valve is communicated with the atmosphere.
Furthermore, the inclination direction of the dust removal filter screen is consistent with the entering direction of the flue gas flow, and the consistent direction is that the upper end of the dust removal filter screen is close to the entering direction of the flue gas flow.
Furthermore, the bottom of the dust removal device is provided with an ash accumulation groove, the cross section of the ash accumulation groove is in an inverted trapezoid shape, the bottom of the ash accumulation groove is provided with an ash discharge port, the ash discharge port is provided with a pressure sensor, and the pressure sensor is electrically connected with the control device.
Further, the hydraulic device and the control device are electrically connected.
Further, the control device adopts a TS-PLC controller of Shanghai Nuo diagram electric automation equipment, Inc.
Further, the control means may be adapted to control the NO output based on the NO received by the control meansXThe electric signal of the monitoring device controls the opening and closing state of the three-way valve interface, and the opening and closing of the ash discharge port is controlled according to the electric signal of the pressure sensor received by the control device.
The utility model discloses following beneficial effect has: the dust removal device is arranged between the flue gas pipeline and the denitration device, so that dust-containing flue gas is prevented from entering the denitration device to influence the denitration effect, a hydraulic linkage rod controlled by a hydraulic device is arranged in the dust removal device, at least 3 dust removal filter screens are arranged in the dust removal device in an inclined array manner, at least 3 barrier blocks are arranged in the top array manner in the dust removal device, the array spacing and the array number of the barrier blocks and the dust removal filter screens are consistent, the lower ends of the dust removal filter screens are connected with the linkage rod, through holes for the flue gas to pass through are formed in the dust removal filter screens, the through holes adjacent to the dust removal filter screens are arranged in a staggered manner, dust in the dust-containing flue gas is blocked and is enabled to fall into the dust accumulation groove through the arrangement of the dust removal filter screens, and the dust removal filter screens can do reciprocating motion and impact with the barrier blocks under the driving of the hydraulic, the vibrations through the dust removal filter screen will be attached to the dust vibrations on the dust removal filter screen and fall, avoid the dust to block up the through-hole on attaching to the dust removal filter screen, make adjacent the through-hole staggered arrangement of dust removal filter screen can make the solid portion on the dust removal filter screen of back carry out the separation to the dust in the dusty flue gas through the through-hole of preceding dust removal filter screen, can improve the dust collector to the dust collection efficiency of dusty flue gas.
Drawings
Fig. 1 is a schematic view of the overall structure of a flue gas denitration device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a dust removing device in an embodiment of the present invention;
fig. 3 shows a dust removing filter net inside the dust removing device.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1 to 3 in an embodiment of the flue gas denitration device of the gas power generation equipment of the present invention, the flue gas denitration device of the gas power generation equipment comprises a flue gas compression pump 1, a dust removing device 2, a denitration device 3, and NOXMonitoring devices 4, alkali liquor absorption tank 5, controlling means, flue gas compressor pump 1 sets up in flue gas pipeline exit, and the gas outlet end of flue gas compressor pump 1 is connected with dust collector 2's inlet end, removes dustInside hydraulic pressure trace 21 that is equipped with through 6 controls of hydraulic means of device 2, the inside at least 3 dust removal filter screen 22 of still array of dust collector 2, dust removal filter screen 22 slope array is inside dust collector 2, the inside top array of dust collector 2 sets up 3 at least obstacle blocks 23, obstacle blocks 23 are unanimous with dust removal filter screen 22's array interval, obstacle blocks 23 are unanimous with dust removal filter screen 22's figure, dust removal filter screen 22's lower extreme and hydraulic pressure trace 21 are connected, be equipped with the through-hole 24 that supplies the flue gas to pass through on the dust removal filter screen 22, it is adjacent dust removal filter screen 22's through-hole 24 staggered arrangement.
The inside hydraulic pressure trace 21 that is equipped with through hydraulic means 6 control of dust collector 2, dust collector 2 is inside still to array at least 3 dust removal filter screen 22, dust removal filter screen 22 slope array is inside dust collector 2, set up at least 3 obstacle blocks 23 with the inside top array of dust collector 2, the array interval and the array figure of obstacle block 23 and dust removal filter screen 22 are unanimous, dust removal filter screen 22's lower extreme and hydraulic pressure trace 21 are connected, be equipped with the through-hole 24 that supplies the flue gas to pass through on the dust removal filter screen 22, the through-hole 24 staggered arrangement of adjacent dust removal filter screen 22, the dust separation in the dust-laden flue gas through arranging of dust removal filter screen 22, dust removal filter screen 22 can strike with obstacle block 23 under hydraulic pressure trace 21's drive, avoid the dust to adhere to blocking through-hole 24 on dust removal filter screen 22, make the through-hole 23 staggered arrangement of adjacent dust removal filter screen 22 can make the solid part on the dust removal filter screen 22 The dust in the dust-containing flue gas is blocked, so that the dust removal efficiency of the dust removal device 2 to the dust-containing flue gas can be improved.
In one embodiment of the present application, preferably, the gas outlet end of the dust removing device 2 is connected with the flue gas inlet of the denitration device, and NO isXThe monitoring device 4 is arranged at the gas outlet of the denitration device 3, NOXThe monitoring device 4 is electrically connected with the control device, a three-way valve 7 is also arranged at the gas outlet, a first interface of the three-way valve 7 is communicated with the alkali liquor absorption pool through a pipeline, and a second interface of the three-way valve is communicated with the atmosphere; NOXThe monitoring device 4 monitors the flue gas denitrated by the denitration device 3, and NO in the flue gas is detectedXWhen the content is higher than the preset value, the control device enables the cigaretteThe gas enters an alkali liquor absorption tank 5 through a first connector of a three-way valve, and NO in the flue gas is treatedXWhen the content is lower than the preset value and meets the tail gas emission standard, the control device enables the smoke to enter the atmosphere through a second interface of the three-way valve 7 and pass through NOXMonitoring device 7 monitors NO in flue gasXThe content monitoring of the gas further determines the next treatment mode of the flue gas, so that NO in the flue gas treated by the flue gas denitration device can be ensuredXThe gas reaches the waste gas treatment standard and NO is reducedXThe hazard of gases to the environment.
In one embodiment of the present application, the inclination direction of the dust-removing filter 22 is preferably the same as the entering direction of the flue gas flow, so that the dust in the flue gas flow can be prevented from accumulating on the dust-removing filter 22.
In an embodiment of the present application, preferably, the bottom of the dust collector is provided with an ash collecting groove 25, the cross section of the ash collecting groove 25 is in an inverted trapezoid shape, the bottom of the ash collecting groove 25 is provided with an ash discharging opening, the ash discharging opening is provided with a pressure sensor, the pressure sensor is electrically connected with the control device, the design of the shape of the ash collecting groove 25 can enable dust to slide along the wall surface of the ash collecting groove 25, the dust is prevented from directly dropping, the dust in the ash collecting groove 25 is prevented from being impacted, the work load of the dust collector 2 is increased by upwards flying, the arrangement of the pressure sensor and the control device can enable the dust collector to regularly discharge ash, and the dust collecting effect of the dust collector is ensured.
In one embodiment of the present application, the hydraulic device 6 is preferably electrically connected to the control device, and the control device controls the operation of the hydraulic device 6 to realize the periodic treatment of dust on the dust removing filter screen.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the technical solutions of the embodiments of the present invention.
Claims (6)
1. A flue gas denitration device of gas power generation equipment is characterized by comprising a flue gas compression pump, a dust removal device, a denitration device and NOXMonitoring devices, alkali lye absorption pond, controlling means, the flue gas compressor pump sets up in flue gas pipeline exit, the gas outlet end of flue gas compressor pump with dust collector's inlet end is connected, the inside hydraulic pressure trace that is equipped with through hydraulic means control of dust collector, the inside at least 3 dust removal filter screens of array still of dust collector, dust removal filter screen slope array is in inside dust collector, the inside top array of dust collector sets up 3 at least obstacle pieces, obstacle piece with the array interval of dust removal filter screen is unanimous, the obstacle piece with the figure of dust removal filter screen is unanimous, the lower extreme of dust removal filter screen with the hydraulic pressure trace is connected, be equipped with the through-hole that supplies the flue gas to pass through on the dust removal filter screen, it is adjacent the through-hole staggered arrangement of dust removal filter screen.
2. The flue gas denitration device of a gas power generation facility according to claim 1, characterized in that: the gas outlet end of the dust removal device is connected with the flue gas inlet of the denitration device, and the NO isXA monitoring device is arranged at the gas outlet of the denitration device, and the NO isXThe monitoring device is electrically connected with the control device.
3. The flue gas denitration device of a gas power generation facility according to claim 2, characterized in that: and a three-way valve is further arranged at the gas outlet, a first interface of the three-way valve is communicated with the alkali liquor absorption pool through a pipeline, and a second interface of the three-way valve is communicated with the atmosphere.
4. The flue gas denitration device of a gas power generation facility according to claim 1, characterized in that: the inclination of the dust removal filter screen is consistent with the entering direction of the flue gas flow.
5. The flue gas denitration device of a gas power generation facility according to claim 1, characterized in that: the bottom of the dust removing device is provided with an ash accumulation groove, the cross section of the ash accumulation groove is in an inverted trapezoid shape, the bottom of the ash accumulation groove is provided with an ash discharge port, the ash discharge port is provided with a pressure sensor, and the pressure sensor is electrically connected with the control device.
6. The flue gas denitration device of a gas power generation facility according to claim 1, characterized in that: the hydraulic device is electrically connected with the control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922222973.0U CN211411388U (en) | 2019-12-12 | 2019-12-12 | Flue gas denitration device of gas power generation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922222973.0U CN211411388U (en) | 2019-12-12 | 2019-12-12 | Flue gas denitration device of gas power generation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211411388U true CN211411388U (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922222973.0U Active CN211411388U (en) | 2019-12-12 | 2019-12-12 | Flue gas denitration device of gas power generation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211411388U (en) |
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2019
- 2019-12-12 CN CN201922222973.0U patent/CN211411388U/en active Active
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