CN207479130U - Supercritical carbon dioxide system boiler blow piping device - Google Patents
Supercritical carbon dioxide system boiler blow piping device Download PDFInfo
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- CN207479130U CN207479130U CN201721491380.9U CN201721491380U CN207479130U CN 207479130 U CN207479130 U CN 207479130U CN 201721491380 U CN201721491380 U CN 201721491380U CN 207479130 U CN207479130 U CN 207479130U
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- parallel branch
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- valve
- solid cast
- collecting box
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Abstract
The utility model discloses supercritical carbon dioxide system boiler blow piping devices, the device includes boiler tubing, boiler export pipeline, working line, parallel branch, solid cast collecting box, fillter section, shut-off valve, working line before air bleeding valve and turbine, the device passes through shunt circuit filtration system, solid cast collecting box discharges rotating machinery or the solid cast of heat exchange equipment upstream, realize design temperature, true working medium closed cycle purging solid cast under pressure, promote the effect of the boiler blow piping of the high temperature and pressure supercritical carbon dioxide circulatory system, reduce the cost of original boiler open type blowpipe and the influence to environment.
Description
Technical field
Boiler tubing solid impurity the utility model is related to the high temperature and pressure supercritical carbon dioxide circulatory system blows down dress
It puts.
Background technology
In the supercritical carbon dioxide system of high design parameter, exist very on boiler internal pipeline pipeline solder joint and tube wall
Mostly various sizes of solid cast, if cannot be effectively treated, rotating machinery and change that solid cast can be in damage system
The important equipments such as hot device reduce the circulatory system service life.So needed after the completion of system assembles to internal system solid cast,
The especially pipeline solid cast of boiler carries out blowpipe.Carbon dioxide is attached most importance to working medium, if opening using conventional vapor boiler
Formula blowpipe method needs to add a large amount of high temperature valve, blowpipe in boiler internal at the beginning of supercritical carbon dioxide boiler design
Process needs to consume up to a hundred tons of vapor, of high cost, and blowpipe effect is worse than the carbon dioxide working medium under same parameter, according to
Carbon dioxide working medium carries out open type blowpipe, then local and periphery personnel, livestock can be given to bring security risk.It there is no the prior art can
To solve the problems, such as the boiler blow piping of the high temperature and pressure supercritical carbon dioxide circulatory system.
Invention content
The purpose of this utility model is that solve the above-mentioned problems and provides high temperature and pressure supercritical carbon dioxide and follow
The boiler blow piping device of loop system discharges consolidating for rotating machinery or heat exchange equipment upstream using shunt circuit filtration system
Body cast realizes design temperature, true working medium closed cycle purging solid cast under pressure, can promote high temperature and pressure and surpasses and face
The effect of the boiler blow piping of boundary's carbon dioxide cycle system reduces blowpipe cost.
The utility model is achieved through the following technical solutions above-mentioned purpose：
Supercritical carbon dioxide system boiler blow piping device, including boiler tubing 1, boiler export pipeline 2a, working line
Working line 2g, solid take off before 2b, parallel branch inducer 2c, parallel branch outlet section 2d, parallel branch threeway section 2e, turbine
Junk collecting box gas exhaust piping 2f, working line shut-off valve 3a, parallel branch inlet shutoff valve 3b, parallel branch outlet shutoff valve
3c, parallel branch deslagging shut-off valve 3d, parallel branch discharge line valve 3e, parallel branch air bleeding valve 3f, solid cast are collected
Case 4, fillter section 5a, filter screen 5b, fillter section suction flange 5c1 and fillter section outlet(discharge) flange 5c2, wherein boiler tubing 1 pass through
Boiler export pipeline 2a is connected with working line 2b and parallel branch inducer 2c, parallel branch inducer 2c, solid cast
Collecting box 4 and fillter section 5a are connected with parallel branch threeway section 2e, in parallel branch inducer 2c, solid cast collecting box
Parallel branch inlet shutoff valve 3b, parallel branch deslagging are respectively provided between 4 and fillter section 5a and parallel branch threeway section 2e
Shut-off valve 3d and fillter section suction flange 5c1,4 top setting solid cast collecting box gas exhaust piping of solid cast collecting box
2f, solid cast collecting box gas exhaust piping 2f are disposed with parallel branch discharge line valve 3e and parallel connection from import to outlet
Branch air bleeding valve 3f, fillter section 5a both sides are respectively provided with double-layer filtering net 5b, and fillter section 5a passes through fillter section outlet(discharge) flange 5c2
It is connected with parallel branch outlet section 2d, parallel branch outlet section 2d and working line 2b are connected with working line 2g before turbine,
The upstream position setting working line shut-off valve 3a of working line 2b, is set in parallel in the upstream position of parallel branch outlet section 2d
Branch outlet shutoff valve 3c.
The parallel branch threeway section 2e, solid cast collecting box 4, fillter section 5a and parallel branch outlet section 2d are pressed
Vertical direction arranges that the cross-sectional area of fillter section 5 is more than conduit cross-sectional area.
The top of the parallel branch threeway section 2e is flaring runner, in pipe outlet section internal diameter and fillter section 5a imports
Diameter is identical.
Supercritical carbon dioxide system boiler blow piping method, after each equipment of supercritical carbon dioxide system is completed,
Between boiler and turbine, between boiler reheating or secondary reheater and turbine, addition supercritical carbon dioxide system boiler is blown
Pipe device subsequently completes process one to process five, wherein, process one：Working line shut-off valve 3a and parallel branch are closed at this time
Discharge line valve 3e opens parallel branch inlet shutoff valve 3b, parallel branch outlet shutoff valve 3c and the cut-off of parallel branch deslagging
Valve 3d, each equipment is run according to normal Starting mode in system, and the solid cast in boiler is with mainstream working medium through boiler export
Pipeline 2a, parallel branch inducer 2c are to parallel branch threeway section 2e, and bulky grain solid cast is through parallel branch threeway section 2e
Entering solid cast collecting box 4 straight down, solid small particles cast enters fillter section 5a straight up with mainstream working medium,
By strainer 5b blocking accumulations on the flaring runner of filter screen 5b and parallel branch threeway section 2e, the mainstream work after filtering
Matter enters each upstream device before turbine after working line 2g into system by parallel branch outlet section 2d, completes working medium and exists
Moving in circles in system；Process two：After the moving in circles of unit interval working medium, each equipment of system enters shutdown status,
Working line shut-off valve 3a and parallel branch inlet shutoff valve 3b is closed, opens parallel branch deslagging shut-off valve 3d, parallel branch
Outlet shutoff valve 3c and parallel branch discharge line valve 3e works before reversely flowing into turbine by the working medium filtered in system at this time
Pipeline 2g, parallel branch outlet section 2d, fillter section outlet(discharge) flange 5c2, filter screen 5b, fillter section 5a, fillter section suction flange
5c1, parallel branch threeway section 2e, solid cast collecting box 4, solid cast collecting box gas exhaust piping 2f, by filter screen 5b
Solid cast collecting box 4 is blown into the solid cast on the expansion segment pipe at the top of parallel branch threeway section 2e, working medium is first
Parallel branch air bleeding valve 3f is flowed through after parallel branch discharge line valve 3e and is expelled to outdoor；Process three：Discharge unit mass
After working medium, working line shut-off valve 3a, parallel branch inlet shutoff valve 3b, parallel branch outlet shutoff valve 3c, branch in parallel are closed
Road deslagging shut-off valve 3d and parallel branch discharge line valve 3e opens solid cast collecting box 4, takes out solid cast and collects
Solid cast in case 4, and weigh solid and come off amount of substance；Process four：Cyclic process one is to process three, until solid cast
Quality is less than each equipment acceptable value of system, and boiler blow piping process terminates, and opens working line shut-off valve 3a, closes parallel branch
Inlet shutoff valve 3b, parallel branch outlet shutoff valve 3c, parallel branch deslagging shut-off valve 3d and parallel branch discharge line valve 3e,
Process five：Hereafter each equipment of whole system normally starts, working medium from boiler 1 outflow after hereafter only by boiler export pipeline 2a,
Working line 2b flow to working line 2g before turbine, the circular flow in system.
It compares with existing technology, the beneficial effects of the utility model are：
The utility model is used for high temperature and pressure supercritical carbon dioxide system boiler blow piping, by being filtered by shunt circuit
System discharges rotating machinery or the solid cast of heat exchange equipment upstream, can realize true under design temperature, pressure
Working medium closed cycle purges solid cast, can promote the boiler tubing solid of the high temperature and pressure supercritical carbon dioxide circulatory system
The effect of cast purging, the environmental hazard for reducing the consumption of working medium compared with open type purges and bringing, while do not need to out
The a large amount of expensive valve installed in boiler pipe needed for formula steam blowing, it is only necessary to which 6 valves are greatly reduced and set in purging
Standby upper input.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model supercritical carbon dioxide system boiler blow piping device and method.
1 is boiler tubing；2a is boiler export pipeline；2b is working line；2c is parallel branch inducer；2d is parallel connection
Branch outlet section；2e is parallel branch threeway section；2g is working line before turbine；2f is solid cast collecting box exhaust pipe
Road；3a is working line shut-off valve；3b is parallel branch inlet shutoff valve；3c is parallel branch outlet shutoff valve；3d is parallel connection
Branch deslagging shut-off valve；3e is parallel branch discharge line valve；3f is parallel branch air bleeding valve；4 be solid cast collecting box；
5a is fillter section；5b is filter screen；5c1 is fillter section suction flange；5c2 is fillter section outlet(discharge) flange.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1, supercritical carbon dioxide system boiler blow piping device, including boiler tubing 1, boiler export pipeline
Instrumentation tubes before 2a, working line 2b, parallel branch inducer 2c, parallel branch outlet section 2d, parallel branch threeway section 2e, turbine
Road 2g, solid cast collecting box gas exhaust piping 2f, working line shut-off valve 3a, parallel branch inlet shutoff valve 3b, branch in parallel
Way outlet shut-off valve 3c, parallel branch deslagging shut-off valve 3d, parallel branch discharge line valve 3e, parallel branch air bleeding valve 3f, consolidate
Body cast collecting box 4, fillter section 5a, filter screen 5b and fillter section suction flange 5c1, wherein fillter section outlet(discharge) flange 5c2, pot
Boiler tube road 1 is connected by boiler export pipeline 2a with working line 2b and parallel branch inducer 2c, parallel branch inducer 2c,
Solid cast collecting box 4 and fillter section 5a are connected with parallel branch threeway section 2e, are taken off in parallel branch inducer 2c, solid
Parallel branch inlet shutoff valve 3b, simultaneously is respectively provided between junk collecting box 4 and fillter section 5a and parallel branch threeway section 2e
Join branch deslagging shut-off valve 3d and fillter section suction flange 5c1,4 top setting solid cast of solid cast collecting box is collected
Case gas exhaust piping 2f, solid cast collecting box gas exhaust piping 2f are disposed with parallel branch exhaust cut-off from import to outlet
Valve 3e and parallel branch air bleeding valve 3f, fillter section 5a both sides are respectively provided with double-layer filtering net 5b, and fillter section 5a passes through fillter section
Outlet(discharge) flange 5c2 is connected with parallel branch outlet section 2d, parallel branch outlet section 2d and working line 2b and instrumentation tubes before turbine
Road 2g is connected, and working line shut-off valve 3a is set in the upstream position of working line 2b, in the upstream of parallel branch outlet section 2d
Position setting parallel branch outlet shutoff valve 3c.
As the preferred embodiment of the utility model, the parallel branch threeway section, solid cast collecting box 4, mistake
It filters section 5a and parallel branch outlet section 2d to arrange by vertical direction, the cross-sectional area of fillter section is more than conduit cross-sectional area；It is perpendicular
Nogata makes the big density solid particle such as solid cast slow down under gravity, while bulky grain solid cast to arrangement
Bump against by inertia motion and parallel branch threeway section；It is more conducive to bulky grain solid cast and enters solid cast collecting box
4.In addition, the cross-sectional area of fillter section is more than conduit cross-sectional area, the reduction of fillter section main current flow speed, the filtering effect of strainer can be made
Fruit is more preferable, and the speed of solid cast also reduces in mainstream, reduces the impact to strainer.
As the preferred embodiment of the utility model, the top of the parallel branch threeway section 2e is flaring runner, is managed
Road outlet internal diameter is identical with fillter section 5a import internal diameters, makes pipeline transition gentle, mainstream even retardation, and speed is not unexpected
Reduce, reduce secondary flow loss；In addition, during mainstream reverse blow, above-mentioned flaring runner is as funnel-form solid cast
Collector is more conducive to solid cast and enters solid cast collecting box 4 under the action of gravity and mainstream fluid.
The operation principle of the utility model supercritical carbon dioxide system boiler blow piping device is as follows：
At work, after each equipment of supercritical carbon dioxide system is completed, between boiler and turbine, boiler again
Heat or secondary reheater and turbine between, add supercritical carbon dioxide system boiler blow piping device, subsequently complete process one to
Process five, wherein, process one：Working line shut-off valve 3a and parallel branch discharge line valve 3e is closed at this time, opens branch in parallel
Road inlet shutoff valve 3b, parallel branch outlet shutoff valve 3c and parallel branch deslagging shut-off valve 3d, each equipment is according to just in system
Normal Starting mode is run, and the solid cast in boiler is with mainstream working medium through boiler export pipeline 2a, parallel branch inducer 2c
To parallel branch threeway section 2e, bulky grain solid cast enters solid cast through parallel branch threeway section 2e and receives straight down
Header 4, solid small particles cast enter fillter section 5a straight up with mainstream working medium, are being filtered by strainer 5b blocking accumulations
On the flaring runner for netting 5b and parallel branch threeway section 2e, mainstream working medium after filtering by parallel branch outlet section 2d into
Enter after working line 2g to enter before turbine each upstream device of system, complete working medium moving in circles in system；Process two：
After the moving in circles of unit interval working medium, each equipment of system enters shutdown status, closes working line shut-off valve 3a and simultaneously
Join branch inlet shutoff valve 3b, open parallel branch deslagging shut-off valve 3d, parallel branch outlet shutoff valve 3c and parallel branch row
Gas shut-off valve 3e, at this time the working medium in system by filtering reversely flow into working line 2g before turbine, parallel branch outlet section 2d,
Fillter section outlet(discharge) flange 5c2, filter screen 5b, fillter section 5a, fillter section suction flange 5c1, parallel branch threeway section 2e, solid take off
Junk collecting box 4, solid cast collecting box gas exhaust piping 2f, by the expansion at the top of filter screen 5b and parallel branch threeway section 2e
Solid cast on segment pipe is blown into solid cast collecting box 4, and working medium flows after first passing through parallel branch discharge line valve 3e
Outdoor is expelled to through parallel branch air bleeding valve 3f；Process three：After discharging unit mass working medium, closing working line shut-off valve 3a,
Parallel branch inlet shutoff valve 3b, parallel branch outlet shutoff valve 3c, parallel branch deslagging shut-off valve 3d and parallel branch exhaust
Shut-off valve 3e opens solid cast collecting box 4, takes out solid cast in solid cast collecting box 4, and weigh solid and take off
Junk quality；Process four：Cyclic process one is to process three, until solid comes off, amount of substance is less than each equipment acceptable value of system,
Boiler blow piping process terminates, and opens working line shut-off valve 3a, closes parallel branch inlet shutoff valve 3b, parallel branch outlet is cut
Only valve 3c, parallel branch deslagging shut-off valve 3d and parallel branch discharge line valve 3e, process five：Hereafter each equipment of whole system is being just
Often start, hereafter working medium only flow to working line before turbine after the outflow of boiler 1 by boiler export pipeline 2a, working line 2b
2g, the circular flow in system.
The technical solution of the utility model is not limited to the limitation of above-mentioned specific embodiment, every skill according to the present utility model
The technology deformation that art scheme is made, each falls within the scope of protection of the utility model.
Claims (3)
1. supercritical carbon dioxide system boiler blow piping device, it is characterised in that：Including boiler tubing (1), boiler export pipeline
(2a), working line (2b), parallel branch inducer (2c), parallel branch outlet section (2d), parallel branch threeway section (2e), thoroughly
Working line (2g), solid cast collecting box gas exhaust piping (2f), working line shut-off valve (3a), parallel branch import before flat
Shut-off valve (3b), parallel branch outlet shutoff valve (3c), parallel branch deslagging shut-off valve (3d), parallel branch discharge line valve
(3e), parallel branch air bleeding valve (3f), solid cast collecting box (4), fillter section (5a), filter screen (5b), fillter section import
Flange (5c1) and fillter section outlet(discharge) flange (5c2), wherein boiler tubing (1) pass through boiler export pipeline (2a) and working line
(2b) is connected with parallel branch inducer (2c), parallel branch inducer (2c), solid cast collecting box (4) and fillter section
(5a) is connected with parallel branch threeway section (2e), in parallel branch inducer (2c), solid cast collecting box (4) and filtering
Parallel branch inlet shutoff valve (3b) is respectively provided between section (5a) and parallel branch threeway section (2e), parallel branch deslagging is cut
Only valve (3d) and fillter section suction flange (5c1), the setting solid cast collecting box exhaust of solid cast collecting box (4) top
Pipeline (2f), solid cast collecting box gas exhaust piping (2f) are disposed with parallel branch discharge line valve from import to outlet
(3e) and parallel branch air bleeding valve (3f), fillter section (5a) both sides are respectively provided with double-layer filtering net (5b), and fillter section (5a) is logical
It crosses fillter section outlet(discharge) flange (5c2) with parallel branch outlet section (2d) to be connected, parallel branch outlet section (2d) and working line
(2b) is connected with working line before turbine (2g), and working line shut-off valve (3a) is set in the upstream position of working line (2b),
In the upstream position setting parallel branch outlet shutoff valve (3c) of parallel branch outlet section (2d).
2. supercritical carbon dioxide system boiler blow piping device according to claim 1, it is characterised in that：The branch in parallel
Road threeway section (2e), solid cast collecting box (4), fillter section (5a) and parallel branch outlet section (2d) press vertical direction cloth
It puts, the cross-sectional area of fillter section is more than conduit cross-sectional area.
3. supercritical carbon dioxide system boiler blow piping device according to claim 1, it is characterised in that：The branch in parallel
The top of road threeway section (2e) is flaring runner, and pipe outlet section internal diameter is identical with fillter section (5a) import internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721491380.9U CN207479130U (en) | 2017-11-09 | 2017-11-09 | Supercritical carbon dioxide system boiler blow piping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721491380.9U CN207479130U (en) | 2017-11-09 | 2017-11-09 | Supercritical carbon dioxide system boiler blow piping device |
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| Publication Number | Publication Date |
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| CN207479130U true CN207479130U (en) | 2018-06-12 |
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ID=62476149
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721491380.9U Active CN207479130U (en) | 2017-11-09 | 2017-11-09 | Supercritical carbon dioxide system boiler blow piping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716481A (en) * | 2017-11-09 | 2018-02-23 | 西安热工研究院有限公司 | Supercritical carbon dioxide system boiler blow piping device and method |
-
2017
- 2017-11-09 CN CN201721491380.9U patent/CN207479130U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716481A (en) * | 2017-11-09 | 2018-02-23 | 西安热工研究院有限公司 | Supercritical carbon dioxide system boiler blow piping device and method |
| CN107716481B (en) * | 2017-11-09 | 2023-12-05 | 西安热工研究院有限公司 | Boiler blowpipe device and method for supercritical carbon dioxide system |
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