CN214918779U - Particle collector suitable for closed purging - Google Patents
Particle collector suitable for closed purging Download PDFInfo
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- CN214918779U CN214918779U CN202120646301.7U CN202120646301U CN214918779U CN 214918779 U CN214918779 U CN 214918779U CN 202120646301 U CN202120646301 U CN 202120646301U CN 214918779 U CN214918779 U CN 214918779U
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Abstract
The utility model discloses a particle collector suitable for closed sweeps belongs to thermal power generation technical field. The two ends of the sleeve are provided with an inlet and an outlet, and the diameter of the sleeve is reduced towards the inlet and the outlet; the middle part of the sleeve is connected with a down pipe to form a through hole, the cone hopper is arranged in the down pipe, the down pipe is connected with a valve, and the valve is connected with a sampler; the front partition board is vertically arranged in the sleeve, and a gap is reserved between the front partition board and the front edge of the through hole; the rear partition board is obliquely arranged in the sleeve, the upper end of the rear partition board is connected with the upper end of the front partition board, and the lower end of the rear partition board is connected with the rear edge of the through hole; a plurality of through holes with horizontal axes are arranged on the front partition plate and the rear partition plate, and the diameter of the through hole in the front partition plate is larger than that of the through hole in the rear partition plate. The non-stop collection and sampling of large particles and part of small particles in the working medium can be realized, the start-stop times of a unit in the purging process are effectively reduced, the purging time is shortened, and the purging cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of thermal power generation, concretely relates to particle collector suitable for closed sweeps.
Background
The supercritical carbon dioxide Brayton cycle generator set inevitably has sundries such as welding slag, rusty scale and the like in system equipment, pipelines and joints after the system is installed. Before the power generation system is put into operation, the impurities must be cleaned, so that the safe starting and operation of the system can be guaranteed.
For a conventional steam generator set, steam can be directly produced for purging, and impurities can be removed. The supercritical carbon dioxide Brayton cycle generator set is designed by taking carbon dioxide as a working medium, and starting from the design and operation safety, the existence of water vapor is not allowed. Therefore, the supercritical carbon dioxide Brayton cycle can only adopt carbon dioxide as working gas for purging, and meanwhile, because the flow of the working medium during purging is huge, the working medium cannot be directly emptied from the aspects of economy, environmental protection and safety, and the closed purging is the optimal purging scheme.
The cleanliness requirements of a compressor, a turbine, heat exchange equipment and the like of key equipment of the supercritical carbon dioxide Brayton cycle power generation system on a working medium are high, and the particle size carried by the working medium is generally required to be less than 5 microns. If the filter is directly used, the resistance of the filter is too large after a large amount of particles are deposited on the filter, and finally the filter needs to be stopped for disassembling for many times to clean impurities.
Disclosure of Invention
In order to solve the problem, the utility model aims to provide a granule collector suitable for closed sweeps can realize that great granule and partial less granule do not stop the machine and collect, take a sample in the working medium, effectively reduces to sweep in-process unit open and stop the number of times, shorten the time of sweeping, reduce the cost of sweeping.
The utility model discloses a realize through following technical scheme:
the utility model discloses a particle collector suitable for closed purging, which comprises a sleeve, a front baffle, a rear baffle, a down pipe, a cone hopper, a valve and a sampler;
the two ends of the sleeve are provided with an inlet and an outlet, and the diameter of the sleeve is reduced towards the inlet and the outlet; the middle part of the sleeve is connected with a down pipe to form a through hole, the cone hopper is arranged in the down pipe, the down pipe is connected with a valve, and the valve is connected with a sampler;
the front partition board is vertically arranged in the sleeve, and a gap is reserved between the front partition board and the front edge of the through hole; the rear partition board is obliquely arranged in the sleeve, the upper end of the rear partition board is connected with the upper end of the front partition board, and the lower end of the rear partition board is connected with the rear edge of the through hole; a plurality of through holes with horizontal axes are arranged on the front partition plate and the rear partition plate, and the diameter of the through hole in the front partition plate is larger than that of the through hole in the rear partition plate.
Preferably, the diameter of the through hole in the front partition board is 6-14 mm, and the diameter of the through hole in the rear partition board is 2-5 mm.
Preferably, the maximum distance of the gap between the front partition board and the front edge of the through hole is 4-5 cm.
Preferably, the through holes on the front partition plate and the through holes on the rear partition plate are arranged in a staggered manner in the sleeve axial direction.
Preferably, the included angle between the front partition plate and the rear partition plate is 30-45 degrees.
Preferably, the front partition plate is 4-8 cm thick, and the rear partition plate is 3-5 cm thick.
Preferably, the valve is an isolation valve.
Preferably, the density of the through holes on the front partition board is 200-250/m2The density of the through holes on the rear partition board is 400-500/m2。
Preferably, the front surfaces of the front partition and the rear partition are provided with wear-resistant layers.
Preferably, the joints of the front partition plate and the rear partition plate and the inner wall of the sleeve are transition fillets.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses a particle collector suitable for closed purging, which is characterized in that a vertical front baffle and an inclined rear baffle are arranged in a sleeve, after carbon dioxide working medium carrying granular impurities enters the particle collector, a part of particles stall after colliding with the front baffle, and fall into a down pipe under the action of gravity; a part of large particles fall into the downcomer due to the gravity because the volume of the sleeve is suddenly increased and the large particles are reduced; and a part of the diameter of the through hole of the front clapboard is larger than the diameter of the through hole of the front clapboard, and the part of the diameter of the through hole of the front clapboard can not pass through the front clapboard and can fall into the downcomer from the through hole under the action of gravity. The particles passing through the front partition plate are in stall after being collided with the obliquely arranged rear partition plate due to the fact that the propagation direction of the particles is along the horizontal direction, and fall into the downcomer under the action of gravity; one part of the diameter of the through hole of the rear clapboard is larger than that of the through hole of the rear clapboard, and the other part of the diameter of the through hole of the rear clapboard can not pass through the front clapboard and can fall into the downcomer under the action of gravity; and a part of the working medium is guided by the rear partition plate, moves downwards, enters the downcomer and then enters the cone hopper. The particle collector collects particles through the above way, thereby realizing the non-stop cleaning of the system. The utility model discloses a collect most granule in the working medium to share the pressure of closed filter in sweeping, and then reduce and sweep in-process unit and open and stop the number of times, shorten the time of sweeping, reduce and sweep the cost.
Furthermore, the aperture of the through holes in the front partition plate and the rear partition plate is reasonably arranged, so that target particles can be effectively collected, and the working medium can keep good fluidity.
Furthermore, the maximum distance of the gap between the front partition board and the front edge of the through hole is 4-5 cm, so that the particles in front of the front partition board can be ensured to have enough channels, and meanwhile, enough distance is reserved between the front partition board and the rear partition board.
Furthermore, the through holes in the front partition plate and the through holes in the rear partition plate are arranged in a staggered mode, and the collision effect of partial particles is improved.
Furthermore, the included angle between the front partition plate and the rear partition plate is 30-45 degrees, so that particles passing through the front partition plate and moving horizontally collide, and the device is compact in structure.
Furthermore, the front partition plate and the rear partition plate are set to be reasonable in thickness, and excessive thick particles are prevented from being retained in the holes.
Furthermore, the valve adopts an isolation valve, so that particles are prevented from blocking the valve.
Further, reasonable through hole density is arranged on the front partition plate and the rear partition plate, and the particle collecting effect can be improved.
Furthermore, the front surfaces of the front partition plate and the rear partition plate are provided with the wear-resistant layers, so that the abrasion caused by particle collision can be reduced, and the service life is prolonged.
Furthermore, the junction of the front partition plate and the rear partition plate with the inner wall of the sleeve is a transition fillet, so that dead angles of particle accumulation can be effectively avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of a collector suitable for closed purging according to the present invention;
fig. 2 is a schematic top view of a sleeve according to the present invention.
In the figure: 1-sleeve, 2-front baffle, 3-rear baffle, 4-down pipe, 5-cone, 6-valve, 7-sampler, 8-through hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, which are included to illustrate and not to limit the present invention:
as shown in fig. 1, for the utility model discloses a particle collector suitable for closed sweeps, including sleeve 1, preceding baffle 2, back baffle 3, downcomer 4, awl fill 5, valve 6 and sampler 7.
An inlet and an outlet are arranged at two ends of the sleeve 1, and the diameter of the sleeve 1 is reduced towards the inlet and the outlet; the middle part of the sleeve 1 is connected with a descending pipe 4 to form a through hole 8, the cone hopper 5 is arranged in the descending pipe 4, the descending pipe 4 is connected with a valve 6, and the valve 6 is connected with a sampler 7.
As shown in figure 2, the front partition board 2 is vertically arranged inside the sleeve 1, a gap is reserved between the front partition board 2 and the front edge of the through hole 8, and the maximum distance between the front partition board 2 and the front edge of the through hole 8 is 4-5 cm. The back baffle 3 slope sets up inside sleeve 1, and the upper end and the preceding baffle 2 upper end of back baffle 3 are connected, and the lower extreme of back baffle 3 is connected with the back edge of intersecting hole 8, and preferably, preceding baffle 2 is 30 ~ 45 with the contained angle of back baffle 3. The thickness of the front partition board 2 is 4-8 cm, and the thickness of the rear partition board 3 is 3-5 cm.
All be equipped with the horizontal through-hole of a plurality of axis on preceding baffle 2 and the back baffle 3, and the diameter of through-hole is greater than the diameter of through-hole on the back baffle 3 on the preceding baffle 2. Generally, the diameter of the through hole on the front partition board 2 is 6-14 mm, and the diameter of the through hole on the rear partition board 3 is 2-5 mm. Preferably, the through holes on the front partition board 2 and the through holes on the rear partition board 3 are arranged in a staggered manner in the axial direction of the sleeve 1. Preferably, the density of the through holes on the front partition board 2 is 200-250/m2The density of the through holes on the rear partition board 3 is 400-500/m2。
In a preferred embodiment of the present invention, the valve 6 is an isolation valve, preferably a butterfly valve.
In a preferred embodiment of the present invention, the front surfaces of the front partition 2 and the rear partition 3 are provided with a wear resistant layer, such as a chromium plating layer.
The utility model discloses a better embodiment, the junction of preceding baffle 2 and back baffle 3 and sleeve 1 inner wall is the transition fillet, can realize through polishing behind the full weld technology.
The utility model discloses a concrete working process does:
after carbon dioxide working media carrying granular impurities enter a sleeve 1 of the particle collector, a part of particles are stalled after colliding with a front clapboard 2, and fall into a down pipe 4 under the action of gravity; a part of large particles are decelerated due to the expansion of the particle collector, and fall into the downcomer 4 under the action of gravity due to the self weight; and a part of the diameter of the through hole of the front clapboard 2 can not pass through the front clapboard 2 and falls into the descending pipe 4 under the action of gravity. Particles passing through the front clapboard 2 partially collide with the rear clapboard 3 and then stall, and fall into the downcomer 4 under the action of gravity; a part of the water drops into the downcomer 4 under the action of gravity, and the diameter of the water exceeds that of the through hole of the rear clapboard 3 and cannot pass through the rear clapboard 3; and a part of the working medium is guided by the rear partition plate 3 and moves downwards to enter the downcomer 4. All particles entering the downcomer 4 are then directed to the cone 5 to prevent backflow, pass through the valve 6 and are finally collected in the sampler 7. When normal purging is performed, the valve 6 is normally opened; when sampling analysis is needed, the valve 6 is closed, and the sampler 7 is screwed off. The particle collection is realized through the method, so that the system is cleaned without stopping.
Although some terms are used in the present invention, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the present invention and are to be construed as any additional limitation which is not in accordance with the spirit of the present invention. The above description is only used as an example to further illustrate the content of the present invention, so as to facilitate understanding, but not to represent that the embodiment of the present invention is limited to this, and any technical extension or re-creation according to the present invention is protected by the present invention.
Claims (10)
1. A particle collector suitable for closed purging is characterized by comprising a sleeve (1), a front partition plate (2), a rear partition plate (3), a downcomer (4), a cone hopper (5), a valve (6) and a sampler (7);
an inlet and an outlet are arranged at two ends of the sleeve (1), and the diameter of the sleeve (1) is reduced towards the inlet and the outlet; the middle part of the sleeve (1) is connected with a descending pipe (4) to form a through hole (8), a cone hopper (5) is arranged in the descending pipe (4), the descending pipe (4) is connected with a valve (6), and the valve (6) is connected with a sampler (7);
the front partition plate (2) is vertically arranged in the sleeve (1), and a gap is reserved between the front partition plate (2) and the front edge of the through hole (8); the rear partition plate (3) is obliquely arranged in the sleeve (1), the upper end of the rear partition plate (3) is connected with the upper end of the front partition plate (2), and the lower end of the rear partition plate (3) is connected with the rear edge of the through hole (8); a plurality of through holes with horizontal axes are arranged on the front partition plate (2) and the rear partition plate (3), and the diameter of the through hole on the front partition plate (2) is larger than that of the through hole on the rear partition plate (3).
2. The particle collector suitable for closed type purging according to claim 1, wherein the diameter of the through hole on the front partition plate (2) is 6-14 mm, and the diameter of the through hole on the rear partition plate (3) is 2-5 mm.
3. The collector adapted for closed purge according to claim 1, characterized in that the maximum distance of the gap between the front baffle (2) and the leading edge of the through hole (8) is 4-5 cm.
4. The particle collector suitable for closed purge according to claim 1, wherein the through holes on the front partition (2) and the through holes on the rear partition (3) are staggered in the axial direction of the sleeve (1).
5. The particle collector suitable for closed type purging according to claim 1, wherein the included angle between the front partition plate (2) and the rear partition plate (3) is 30-45 degrees.
6. The particle collector suitable for closed type purging according to claim 1, wherein the thickness of the front partition plate (2) is 4-8 cm, and the thickness of the rear partition plate (3) is 3-5 cm.
7. A collector adapted for closed purge according to claim 1, characterized in that the valve (6) is an isolation valve.
8. The collector adapted for closed purge according to claim 1, wherein the density of the through holes on the front baffle (2) is 200-250/m2The density of the through holes on the rear partition board (3) is 400 to500 pieces/m2。
9. A collector adapted for closed purge according to claim 1, characterized in that the front faces of the front (2) and rear (3) partitions are provided with a wear resistant layer.
10. The collector adapted for closed purge according to claim 1, wherein the junction of the front baffle (2) and the rear baffle (3) with the inner wall of the sleeve (1) is transition fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120646301.7U CN214918779U (en) | 2021-03-30 | 2021-03-30 | Particle collector suitable for closed purging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120646301.7U CN214918779U (en) | 2021-03-30 | 2021-03-30 | Particle collector suitable for closed purging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214918779U true CN214918779U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120646301.7U Active CN214918779U (en) | 2021-03-30 | 2021-03-30 | Particle collector suitable for closed purging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214918779U (en) |
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2021
- 2021-03-30 CN CN202120646301.7U patent/CN214918779U/en active Active
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