CN215782628U - Online purging device of thermal power plant - Google Patents
Online purging device of thermal power plant Download PDFInfo
- Publication number
- CN215782628U CN215782628U CN202120522297.3U CN202120522297U CN215782628U CN 215782628 U CN215782628 U CN 215782628U CN 202120522297 U CN202120522297 U CN 202120522297U CN 215782628 U CN215782628 U CN 215782628U
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- purging
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- 238000010926 purge Methods 0.000 title claims abstract description 94
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 238000007664 blowing Methods 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 abstract description 2
- 239000004071 soot Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000010408 sweeping Methods 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of thermal power generation, in particular to an online purging device for a thermal power plant, which comprises a shell assembly, a supporting assembly, a transmission assembly, a purging assembly, an air outlet pipe and a rotating assembly, wherein the supporting assembly is arranged inside the shell assembly, the transmission assembly is arranged on the outer wall of the shell assembly, the purging assembly is in transmission connection with the transmission assembly, the purging assembly is in rotating connection with the supporting assembly, the air outlet pipe is arranged at one end of the shell assembly, and the rotating assembly is connected with the shell assembly and an air blowing pipe. In the use process, the shell assembly protects other parts in the device, the supporting assembly supports the blowing assembly to rotate, the power transmission is carried out through the transmission assembly, and the gas is transmitted out through the gas outlet pipe.
Description
Technical Field
The utility model relates to the technical field of thermal power generation, in particular to an online purging device for a thermal power plant.
Background
The blockage of the air volume measuring pipeline is an important factor causing inaccurate air volume measurement, and in recent years, many scholars and experts propose own opinions on the blockage phenomenon.
In 2013, the principle that compressed air is continuously introduced into a measuring point sampling pipeline through a pressure reducing valve and a steam-water separator, clean origin is continuously introduced into the measuring point sampling pipeline, differential pressure generated by reverse blowing air pressure is eliminated by using a dynamic pressure compensation method, a true value is measured, and the anti-blocking purpose is finally achieved; in 2015, the capacity is strong, and in application of a coal dust branch pipe blockage detection and automatic purging system, a PLC (programmable logic controller) system is used for controlling a pneumatic valve to act to purge the coal dust branch pipe; in 'a design of a back-blowing and sweeping scheme for improving the accuracy of measuring the secondary air volume of a boiler', Wang Steel in 2019 proposes that a three-way valve is added on a sampling pipeline respectively, one port of the three-way valve is connected with an electromagnetic valve, and the purpose of back-blowing is achieved by controlling the on-off of the electromagnetic valve by a DCS instruction, and the defects are that: because the three-way valve is selected, in the purging process, the transmitter is not effectively isolated, so that the measured value exceeds the upper line deterioration quality, and meanwhile, the author does not explain the influence of the secondary air quantity deterioration point on the total air quantity and the condition that the total air quantity is low MFT.
Chinese patent application No. CN201721296314.6 discloses a soot blower for a denitration inlet flue of a thermal power plant, which comprises a soot blowing main pipe a, a soot blowing nozzle a, a connecting pipe a, a soot blowing main pipe b, a soot blowing nozzle b, a connecting pipe b, a boiler cooling air pipe and a manual stop valve; the soot blowing nozzle a is arranged below a soot blowing main pipe a1, one end of the soot blowing main pipe a is connected with one end of a connecting pipe a, and the other end of the connecting pipe a is connected with a boiler cold air pipe; the soot blowing nozzle b is arranged below the soot blowing main pipe b, one end of the soot blowing main pipe b is connected with one end of a connecting pipe b, and the other end of the connecting pipe b is connected with a boiler cold air pipe. The utility model discloses an utilize the more moderate wind of pressure as blowing the air supply, as long as the operation of boiler primary air fan just can blow the ash in succession to the deposition position, the guarantee flue is clean all the time and denitration reactor flue gas flow distributes evenly, has saved a large amount of manpowers, material resources and has carried out the deashing to the denitration catalyst to make economic benefits obtain improving by a wide margin, simple structure, convenient to use, the operation is not maintained.
However, most of the existing purging devices are manually purged, the purging effect is poor, purging is uneven, and a large amount of manpower and material resources are consumed. This patent is through adopting thermal power factory online to sweep the fine solution above-mentioned problem of device.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides an online purging device for a thermal power plant, which is used for solving the problems that most purging devices are purged manually, the purging effect is poor, the purging is uneven, a large amount of manpower and material resources are consumed, and the like.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the online purging device for the thermal power plant comprises a shell assembly, a supporting assembly, a transmission assembly, a purging assembly, an air outlet pipe and a rotating assembly, wherein the supporting assembly is arranged inside the shell assembly, the transmission assembly is arranged on the outer wall of the shell assembly, the purging assembly is in transmission connection with the transmission assembly, the purging assembly is in rotation connection with the supporting assembly, one end of the shell assembly is arranged in the air outlet pipe, and the rotating assembly is connected with the shell assembly and the air outlet pipe.
Further, the rotating assembly comprises a first rotating ring, a second rotating ring, a rotating shell and a rotating shaft, the second rotating ring is arranged inside the first rotating ring, the first rotating ring is rotatably connected with the second rotating ring, the rotating shaft is in transmission connection with the first rotating ring, and the rotating shell is arranged outside the rotating shaft.
Further, the casing assembly comprises a support frame, an upper casing, a lower casing, a grid cover and a plurality of fixing lugs, the support frame is arranged at the bottom of the lower casing, the upper casing is connected with the lower casing, the grid cover is arranged at the rear end of the lower casing, the lower casing is arranged on a first rotating ring, one end of the air outlet pipe is arranged on a second rotating ring, and the fixing lugs are arranged at one end of the support frame.
Further, the transmission assembly comprises a first cover plate, a driving shaft, a driving gear, a driven shaft, a driven gear and a coupler, wherein the first cover plate is arranged at one end of the driving shaft, the driving gear is arranged in the middle of the driving shaft, the driven gear is arranged in the middle of the driven shaft, and the driving gear is in meshed transmission connection with the driven gear.
Furthermore, the purging component comprises a purging main shaft and two purging fans, one end of the driven shaft is connected with the purging main shaft through a coupler, and the two purging fans are arranged at two ends of the purging main shaft.
Further, the supporting component comprises a supporting bearing, a plurality of supporting rods and a plurality of supporting connecting plates, the supporting bearing is arranged in the middle of the purging main shaft, the supporting bearing is rotatably connected with the purging main shaft and is connected with the purging main shaft in a plurality of mode that the supporting bearing outer wall is arranged in the supporting rod in an annular and uniform mode, the supporting connecting plates are arranged at one end of the supporting rod in a plurality of mode, and the supporting connecting plates are fixedly connected with the shell component through bolts.
Compared with the prior art, the utility model has the following beneficial effects:
the device comprises a shell assembly, a supporting assembly, a transmission assembly, a purging assembly, an air outlet pipe and a rotating assembly, wherein the shell assembly protects other parts in the device, the supporting assembly supports the purging assembly to rotate, power transmission is carried out through the transmission assembly, gas is transmitted out through the air outlet pipe to realize purging operation, the rotating assembly rotates to control the purging direction of the air outlet pipe, and the device further comprises a control assembly so as to facilitate remote control of purging operation of the device. The rotating assembly is rotationally connected with the second rotating ring through the first rotating ring and is driven by the rotating shaft to rotate. The support frame fixes the device at the working position through a plurality of fixed ears, and the internal structure of the device is protected to upper and lower casing, and the mesh cover protects the shaft coupling transmission. The transmission assembly drives the driving gear to rotate through the driving shaft, drives the driven gear which is in meshed transmission connection with the driving gear to rotate, finally transmits power to the purging assembly through the coupler, the purging assembly drives the purging fan to provide wind power output through the purging main shaft, the supporting assembly is located in the middle of the purging main shaft, the normal rotation of the purging main shaft of the device is guaranteed, and the stability of the pneumatic output of the device is improved.
The utility model better solves the problems that most of the blowing devices are blown by manpower, the blowing effect is poor, the blowing is uneven, a large amount of manpower and material resources are consumed, and the like. The utility model has simple structure, convenient operation, stability, reliability and long service life.
Drawings
FIG. 1 is a schematic structural diagram of an on-line purging device of a thermal power plant according to the present invention;
FIG. 2 is a schematic sectional view of the online purging device of the thermal power plant according to the present invention;
FIG. 3 is a partial enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic structural diagram of a rotary assembly in the on-line purging device of the thermal power plant according to the present invention;
reference numerals in the drawings of the specification include:
a housing assembly 1; a support frame 101; an upper housing 102; a lower case 103; a mesh enclosure 104; a fixing lug 105; a support assembly 2; a support bearing 201; a support bar 202; a support connection plate 203; a transmission assembly 3; a first cover plate 301; a drive shaft 302; a drive gear 303; a driven shaft 304; a driven gear 305; a coupling 306; a purge assembly 4; an air outlet pipe 5; a rotating assembly 6; a first rotating ring 601; a second rotating ring 602; rotating the housing 603; the shaft 604 is rotated.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
The first embodiment is as follows:
as shown in fig. 1-4, the online purging device for the thermal power plant comprises a shell assembly 1, a supporting assembly 2, a transmission assembly 3, a purging assembly 4, an air outlet pipe 5 and a rotating assembly 6, wherein the supporting assembly 2 is arranged inside the shell assembly 1, the transmission assembly 3 is arranged on the outer wall of the shell assembly 1, the purging assembly 4 is in transmission connection with the transmission assembly 3, the purging assembly 4 is in rotation connection with the supporting assembly 2, the air outlet pipe 5 is arranged at one end of the shell assembly 1, and the rotating assembly 6 is connected with the shell assembly 1 and the air outlet pipe 5.
The device comprises a shell assembly 1, a supporting assembly 2, a transmission assembly 3, a purging assembly 4, an air outlet pipe 5 and a rotating assembly 6, wherein the shell assembly 1 protects other parts in the device, the supporting assembly 2 supports the purging assembly 4 to rotate, power transmission is carried out through the transmission assembly 3, air is transmitted out through the air outlet pipe 5 to realize purging operation, the rotating assembly 6 rotates to control the purging direction of the air outlet pipe 5, and the device further comprises a control assembly so as to facilitate remote control of purging operation of the device.
The rotating assembly 6 comprises a first rotating ring 601, a second rotating ring 602, a rotating shell 603 and a rotating shaft 604, wherein the second rotating ring 602 is arranged inside the first rotating ring 601, the first rotating ring 601 is rotatably connected with the second rotating ring 602, the rotating shaft 604 is in transmission connection with the first rotating ring 601, and the rotating shell 603 is arranged outside the rotating shaft 604.
The rotating unit 6 is rotatably connected to the first rotating ring 601 and the second rotating ring 602, and is driven by the rotating shaft 604 to perform a rotating operation.
The shell assembly 1 comprises a support frame 101, an upper shell 102, a lower shell 103, a grid cover 104 and a plurality of fixing lugs 105, wherein the support frame 101 is arranged at the bottom of the lower shell 103, the upper shell 102 is connected with the lower shell 103, the grid cover 104 is arranged at the rear end of the lower shell 103, the lower shell 103 is arranged on a first rotating ring 601, one end of an air outlet pipe 5 is arranged on a second rotating ring 602, and the plurality of fixing lugs 105 are arranged at one end of the support frame 101.
The support frame 101 fixes the device at the working position through a plurality of fixing lugs 105, the upper shell 102 and the lower shell 103 protect the internal structure of the device, and the grid cover 104 protects the coupling 306 for transmission.
Example two:
as shown in fig. 1-4, the online purging device for the thermal power plant comprises a shell assembly 1, a supporting assembly 2, a transmission assembly 3, a purging assembly 4, an air outlet pipe 5 and a rotating assembly 6, wherein the supporting assembly 2 is arranged inside the shell assembly 1, the transmission assembly 3 is arranged on the outer wall of the shell assembly 1, the purging assembly 4 is in transmission connection with the transmission assembly 3, the purging assembly 4 is in rotation connection with the supporting assembly 2, the air outlet pipe 5 is arranged at one end of the shell assembly 1, and the rotating assembly 6 is connected with the shell assembly 1 and the air outlet pipe 5.
The device comprises a shell assembly 1, a supporting assembly 2, a transmission assembly 3, a purging assembly 4, an air outlet pipe 5 and a rotating assembly 6, wherein the shell assembly 1 protects other parts in the device, the supporting assembly 2 supports the purging assembly 4 to rotate, power transmission is carried out through the transmission assembly 3, air is transmitted out through the air outlet pipe 5 to realize purging operation, the rotating assembly 6 rotates to control the purging direction of the air outlet pipe 5, and the device further comprises a control assembly so as to facilitate remote control of purging operation of the device.
The rotating assembly 6 comprises a first rotating ring 601, a second rotating ring 602, a rotating shell 603 and a rotating shaft 604, wherein the second rotating ring 602 is arranged inside the first rotating ring 601, the first rotating ring 601 is rotatably connected with the second rotating ring 602, the rotating shaft 604 is in transmission connection with the first rotating ring 601, and the rotating shell 603 is arranged outside the rotating shaft 604.
The rotating unit 6 is rotatably connected to the first rotating ring 601 and the second rotating ring 602, and is driven by the rotating shaft 604 to perform a rotating operation.
The shell assembly 1 comprises a support frame 101, an upper shell 102, a lower shell 103, a grid cover 104 and a plurality of fixing lugs 105, wherein the support frame 101 is arranged at the bottom of the lower shell 103, the upper shell 102 is connected with the lower shell 103, the grid cover 104 is arranged at the rear end of the lower shell 103, the lower shell 103 is arranged on a first rotating ring 601, one end of an air outlet pipe 5 is arranged on a second rotating ring 602, and the plurality of fixing lugs 105 are arranged at one end of the support frame 101.
The support frame 101 fixes the device at the working position through a plurality of fixing lugs 105, the upper shell 102 and the lower shell 103 protect the internal structure of the device, and the grid cover 104 protects the coupling 306 for transmission.
The transmission assembly 3 comprises a first cover plate 301, a driving shaft 302, a driving gear 303, a driven shaft 304, a driven gear 305 and a coupler 306, wherein the first cover plate 301 is arranged at one end of the driving shaft 302, the driving gear 303 is arranged in the middle of the driving shaft 302, the driven gear 305 is arranged in the middle of the driven shaft 304, and the driving gear 303 is in meshing transmission connection with the driven gear 305.
The transmission assembly drives the driving gear 303 to rotate through the driving shaft 302, drives the driven gear 305 in meshed transmission connection with the driving gear 303 to rotate, and finally transmits power to the purging assembly 4 through the coupler 306.
The purging assembly 4 comprises a purging main shaft 401 and two purging fans 402, one end of the driven shaft 304 is connected with the purging main shaft 401 through a coupler 306, and the two purging fans 402 are arranged at two ends of the purging main shaft 401.
The blowing component 4 drives a blowing fan 402 to provide wind power output through a blowing main shaft 401.
The supporting assembly 2 comprises a supporting bearing 201, a plurality of supporting rods 202 and a plurality of supporting connection plates 203, the supporting bearing 201 is arranged in the middle of the purging main shaft 401, the supporting bearing 201 is rotatably connected with the purging main shaft 401, the supporting bearing 201 is annularly and uniformly distributed on the outer wall of the plurality of supporting rods 202, one end of each supporting rod 202 is arranged in each supporting connection plate 203, and the plurality of supporting connection plates 203 are fixedly connected with the shell assembly 1 through bolts. The supporting component 2 is positioned in the middle of the purging main shaft 401, so that the purging main shaft 401 of the device can normally rotate, and the stability of pneumatic output of the device is improved.
The control assembly further comprises a plurality of purging electromagnetic valves, a plurality of gas source valves and a control loop, under a normal state, the electromagnetic valves are not electrified, the isolation valve is in an opening state, and the gas source electromagnetic valves and the purging electromagnetic valves are in a stopping state.
In a purging state, the forced exit and the protected exit of the air volume measuring point are realized by combining HLBL language in the DCS, the DCS sends control instructions in sequence, the isolation valve is electrified and is in a cut-off state; the gas source electromagnetic valve and the blowing electromagnetic valve are electrified and are in an open state to form a compressed air positive and negative pressure side sampling pipeline reverse blowing loop, after one blowing period (2min),
after normal feedback of the air volume measuring point is detected, the DCS instructs to control the purging valve and the isolating valve to lose power, the purging process is finished, and the low air volume protection is automatically put into use after 30 min.
Advantages of the second embodiment over the first embodiment:
the device's stability in use and installation fastness have been improved, the device's work efficiency and operating mass with rated load have been improved, the device sweep stability has been improved, the device's operational failure frequency has been reduced, the device's life has been prolonged.
The use method of the purging device comprises the following steps:
casing subassembly 1 protects other inside spare parts of the device, and supporting component 2 supports and sweeps subassembly 4 and rotates, carries out power transmission through drive assembly 3, carries out gas through outlet duct 5 and spreads out, realizes sweeping the operation, and rotating component 6 rotates and controls sweeping of outlet duct 5 to, the device still includes the control assembly to the remote control the device sweep the work.
In the description of the present invention, it is to be understood that the terms "front end", "rear end", "horizontal", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art, and it will be appreciated by those skilled in the art that the present invention has been made available to those skilled in the art after the filing date or priority date, and that the present invention may be implemented by those skilled in the art by applying ordinary skill in the art, without departing from the spirit and scope of the present invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (6)
1. On-line purging device of thermal power factory, its characterized in that: including casing subassembly (1), supporting component (2), drive assembly (3), sweep subassembly (4), outlet duct (5) and runner assembly (6), inside casing subassembly (1) was arranged in to supporting component (2), drive assembly (3) are installed at casing subassembly (1) outer wall, it is connected with drive assembly (3) transmission to sweep subassembly (4), it is connected with supporting component (2) rotation to sweep subassembly (4), casing subassembly (1) one end is arranged in to outlet duct (5), casing subassembly (1) and outlet duct (5) are connected in runner assembly (6).
2. The thermal power plant online purge apparatus of claim 1, wherein: the rotating assembly (6) comprises a first rotating ring (601), a second rotating ring (602), a rotating shell (603) and a rotating shaft (604), wherein the second rotating ring (602) is arranged in the first rotating ring (601), the first rotating ring (601) is rotatably connected with the second rotating ring (602), the rotating shaft (604) is in transmission connection with the first rotating ring (601), and the rotating shell (603) is arranged outside the rotating shaft (604).
3. The on-line purging device of a thermal power plant according to claim 2, wherein: casing subassembly (1) includes support frame (101), goes up casing (102), casing (103), net cover (104) and a plurality of fixed ear (105) down, casing (103) bottom is arranged in to support frame (101), it is connected with casing (103) down to go up casing (102), the rear end of casing (103) is arranged down in to net cover (104), casing (103) are installed on first rotating ring (601) down, outlet duct (5) one end is installed on second rotating ring (602), and is a plurality of support frame (101) one end is arranged in to fixed ear (105).
4. The on-line purging device of a thermal power plant according to claim 3, wherein: the transmission assembly (3) comprises a first cover plate (301), a driving shaft (302), a driving gear (303), a driven shaft (304), a driven gear (305) and a coupler (306), one end of the driving shaft (302) is arranged in the first cover plate (301), the middle of the driving shaft (302) is arranged in the driving gear (303), the middle of the driven shaft (304) is arranged in the driven gear (305), and the driving gear (303) is in meshing transmission connection with the driven gear (305).
5. The thermal power plant online purge apparatus of claim 4, wherein: the purging component (4) comprises a purging main shaft (401) and two purging fans (402), one end of the driven shaft (304) is connected with the purging main shaft (401) through a coupler (306), and the two purging fans (402) are arranged at two ends of the purging main shaft (401).
6. The on-line purging device of a thermal power plant according to claim 5, wherein: the supporting component (2) comprises a supporting bearing (201), a plurality of supporting rods (202) and a plurality of supporting connecting plates (203), the supporting bearing (201) is arranged in the middle of the purging main shaft (401), the supporting bearing (201) is rotatably connected with the purging main shaft (401), the supporting bearing (201) is annularly and uniformly distributed on the outer wall of the supporting bearing (202), the supporting connecting plates (203) are arranged at one end of the supporting rod (202), and the supporting connecting plates (203) are fixedly connected with the shell component (1) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120522297.3U CN215782628U (en) | 2021-03-12 | 2021-03-12 | Online purging device of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120522297.3U CN215782628U (en) | 2021-03-12 | 2021-03-12 | Online purging device of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215782628U true CN215782628U (en) | 2022-02-11 |
Family
ID=80162087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120522297.3U Expired - Fee Related CN215782628U (en) | 2021-03-12 | 2021-03-12 | Online purging device of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215782628U (en) |
-
2021
- 2021-03-12 CN CN202120522297.3U patent/CN215782628U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20220211 |