CN209279134U - A kind of low low-level (stack-gas) economizer system of efficient anti-gray - Google Patents
A kind of low low-level (stack-gas) economizer system of efficient anti-gray Download PDFInfo
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- CN209279134U CN209279134U CN201822099478.0U CN201822099478U CN209279134U CN 209279134 U CN209279134 U CN 209279134U CN 201822099478 U CN201822099478 U CN 201822099478U CN 209279134 U CN209279134 U CN 209279134U
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Abstract
The utility model discloses a kind of low low-level (stack-gas) economizer systems of efficient anti-gray, including admission line, economizer and outlet pipe, the admission line is connected to outlet pipe, the economizer is arranged between admission line and outlet pipe, and economizer can rotate and adjust air inlet face and the outlet face of economizer；One end face of economizer is provided with the first water pipe head, other end is provided with the second water pipe head, first water pipe head and the second water pipe head are arranged along the pivot center of economizer, first water pipe head is connected to main road water inlet pipe, and second water pipe head is connected to main road outlet pipe.When the leeward of economizer is more because of dust stratification, economizer is rotated by 90 ° or 180 °, the position of leeward and windward side is converted, solves the problems, such as economizer dust stratification, so that the flue gas circulation in economizer gap is unobstructed uniform, economizer is avoided to be worn.
Description
Technical field
The utility model belongs to a kind of low low-level (stack-gas) economizer system regions, and in particular to a kind of low temperature province of efficient anti-gray
Coal device system.
Background technique
As the anxiety of electricity coal supply and the situation of AND ENERGY RESOURCES CONSUMPTION IN CHINA are further severe, country is to energy saving for power plants consumption reduction
It is required that stringenter.Low low-level (stack-gas) economizer is set in forecooler outlet and electric precipitator entrance, smoke evacuation can be effectively reduced
Temperature, Mist heat recovering have good energy-saving benefit.
Since low low-level (stack-gas) economizer is installed on electric precipitator inlet, the soot dust granule content in flue gas is high, be easy to cause
Dust stratification on the comb of low low-level (stack-gas) economizer.By the discovery of observation dust stratification position, the position of dust stratification is predominantly located on economizer comb
The leeward of economizer comb, and windward side will not dust stratification.The low serious dust stratification of low-level (stack-gas) economizer, not only results in heat exchange efficiency
Sharply decline, and it is unsmooth and uneven to will cause flue gas circulation, economizer comb is galled, until scrap.
Utility model content
Aiming at the problems existing in the prior art, the utility model provides a kind of low low-level (stack-gas) economizer system of efficient anti-gray
System, its object is to the positions by the leeward and windward side that change economizer comb, and it is tight to solve low low-level (stack-gas) economizer dust stratification
The problem of weight avoids economizer comb from being worn, prevents from scrapping so that the circulation of economizer flue gas is unobstructed and uniform.
In order to solve the above technical problems, the utility model is achieved by following scheme:
A kind of low low-level (stack-gas) economizer system of efficient anti-gray, including admission line, economizer and outlet pipe, the air inlet
Pipeline is connected to outlet pipe, and the economizer is arranged between admission line and outlet pipe, and economizer can occur to turn
The air inlet face of dynamic adjustment economizer and outlet face；
One end face of economizer is provided with the first water pipe head, and other end is provided with the second water pipe head, and described first
Water pipe head and the second water pipe head are arranged along the pivot center of economizer, and first water pipe head and main road water inlet pipe connect
Logical, second water pipe head is connected to main road outlet pipe.
Further, the first valve is provided on the main road water inlet pipe and main road outlet pipe.
Further, bypass water pipe is connected between the main road water inlet pipe and main road outlet pipe, on the bypass water pipe
It is provided with the second valve.
Further, the economizer is mounted in closed shell, and the both ends of the surface of the closed shell open up connection respectively
Hole, the admission line are connect with a connecting hole, and the outlet pipe is connect with another connecting hole.
Further, circular orbit is arranged on the economizer, economizer can be rotated relative to circular orbit；The ring
Shape track is fixed on the inner wall of closed shell, is connected between economizer and circular orbit by steamboat.
Further, it is connected between economizer and a circular orbit by steamboat, circular orbit is set in economizer
Middle part.
Further, it is connected between economizer and two circular orbits by steamboat, one of circular orbit is set in
One end of economizer, another circular orbit are set in the other end of economizer.
Further, the economizer is fixedly connected on the inner ring of bearing, and the outer ring of bearing is fixed on the interior of closed shell
Wall.
Further, closed shell is stretched out in first water pipe head and the second water pipe head, and the first water pipe head with
It is provided with first bearing between closed shell, is provided with first bearing between the second water pipe head and closed shell.
A kind of application method of the low low-level (stack-gas) economizer system of efficient anti-gray are as follows: be passed through flue gas from admission line, flue gas
Pass through from the pipeline gap of economizer, while being passed through cooling water into the pipeline of economizer from main road water inlet pipe, cooling water is saving
In coal device and after flue gas heat exchange, cooling water heating is discharged from main road outlet pipe, and flue gas is discharged into electric precipitator from outlet pipe；
When needing the windward side of economizer and leeward reversing of position, the first valve is first closed, opens simultaneously second
Valve, main road water inlet pipe is separated with the first water pipe head, and main road outlet pipe is separated with the second water pipe head, then will save coal
Device is rotated by 90 ° or 180 ° using the center line of the first water pipe head as axis along circular orbit, finally by main road water inlet pipe and first
Water pipe head connection, main road outlet pipe is connect with the second water pipe head, is opened the first valve, is simultaneously closed off the second valve.
Further, power is provided to economizer by external motor, economizer is rotated.
Compared with prior art, the utility model at least has the advantages that the economizer of the utility model includes
Several pipelines, pipeline is interior for cavity and interconnected, for allowing cooling water to pass through from tube cavity, between the pipeline of economizer
Retention gap, for allowing flue gas to pass through from the gap of economizer, economizer is arranged between admission line and outlet pipe, and saves
The gap of coal device is connected to admission line and outlet pipe, and the flue gas being passed through from admission line is behind the gap of economizer from out
It is discharged in feed channel；Economizer, which can rotate, adjusts air inlet face and the outlet face of economizer；It is arranged in economizer in annular
The first water pipe head and the second water pipe head are respectively arranged in both ends of the surface on track, the first water pipe head and the second water pipe connect
Head is connected to by the pipeline of economizer, and the first water pipe head is connect with main road water inlet pipe, the second water pipe head is gone out with main road
Water pipe connection, i.e., be connected between main road water inlet pipe and main road outlet pipe by the tube cavity of economizer, by cooling water from main road
Water inlet pipe is passed through, and cooling water flows out after the tube cavity of economizer absorbs heat from main road outlet pipe.When the back of economizer
When wind face is more because of dust stratification, economizer is given to apply active force, economizer is allowed to be rotated by 90 ° or 180 °, it can be easily by economizer
Leeward be transformed into the position of windward side, allow leeward as air inlet face, allow windward side as outlet face, to solve to exchange heat
The serious problem of gas dust stratification, using the leeward of economizer as windward side by way of rotating at regular intervals, then the flue dust in flue gas
Particle is not easy to assemble on economizer, so that the flue gas circulation in economizer gap is unobstructed and uniform, avoids economizer comb quilt
It galls, prevents from scrapping.
Further, it is provided with the first valve on main road water inlet pipe and main road outlet pipe, when needing to adjust economizer
Leeward and windward side position when, can be effective by the first valve first closed on main road water inlet pipe and main road outlet pipe
It prevents cooling water from outflowing, is convenient for construction operation.
Further, it is also connected with bypass water pipe between main road water inlet pipe and main road outlet pipe, and is set on bypass water pipe
It is equipped with the second valve, when the position of the leeward and windward side that need to adjust economizer, closes the first valve of main road water pipe,
And the second valve of bypass water pipe is opened, allow cooling water to continue cycling through by bypass water pipe, without closing total lock of circulation waterway
Valve, therefore the utility model can be safeguarded in the case where not influencing power plant's operation, it is easy to implement.
Further, economizer is mounted in closed shell, offers connecting hole respectively in the both ends of the surface of closed shell,
Admission line is connect with a connecting hole, outlet pipe is connect with another connecting hole, and closed shell may insure to make flue gas not outer
Leakage allows the cooling water in economizer adequately by the heat of flue gas so that flue gas all passes through from the gap of economizer
It is recycled, improves the recovery efficiency of flue gas heat.
Further, circular orbit is fixed on closed inner walls, is connected between economizer and circular orbit by steamboat
Connect, connected using steamboat, can be rotated economizer with lesser power, and can reduce economizer and circular orbit it
Between friction, extend the service life of system.
Further, it is connected between economizer and a circular orbit by steamboat, circular orbit is set in economizer
Middle part；Economizer can also be connect between two circular orbits by steamboat, and one of circular orbit is set in economizer
One end, another circular orbit are set in the other end of economizer, according to actual use demand, select one or two circular rails
Road, it is alternative high, facilitate installation and maintenance.
Further, economizer is fixedly connected on the inner ring of bearing, and the outer ring of bearing is fixed on the inner wall of closed shell, benefit
With huge bearing, economizer need to be only fixedly connected with the inner ring of bearing, the inner wall of the outer ring of bearing and closed shell is fixed to be connected
It connects, facilitates installation, the spin stabilization of economizer.
Further, connecting hole is provided with the center of closed shell both ends of the surface, the center face connecting hole of economizer,
It can ensure that in this way and flue gas allowed to pass through from the gap of economizer as homogeneously as possible.
Further, closed shell is stretched out in the first water pipe head and the second water pipe head, and the first water pipe head with it is closed
It is provided with first bearing between shell, is provided with first bearing between the second water pipe head and closed shell, in rotation economizer
When, it can be rotated by the first water pipe head and the second water pipe head for stretching out shell, and in water pipe head and shell
Between be provided with bearing, convenient for the rotation of economizer；When economizer is worked, the first water pipe head and second can use
Economizer is fixed on shell by water pipe head, realizes the stable operation of equipment.
Detailed description of the invention
Fig. 1 is the front view of the low low-level (stack-gas) economizer system of efficient anti-gray；
Fig. 2 is the top view of the low low-level (stack-gas) economizer system of efficient anti-gray.
In figure: 1- admission line；2- circular orbit；3- economizer；4- steamboat；The first water pipe head of 5-；The first water pipe of 6-
Connector；The first valve of 7-；The second valve of 8-；9- main road water inlet pipe；10- main road outlet pipe；11- bypass water pipe；12- escape pipe
Road；The closed shell of 13-；14- first bearing.
Specific embodiment
With reference to the accompanying drawing and specific embodiment, detailed explanation is made to the utility model.
Referring to figs. 1 and 2, the utility model includes that admission line 1, circular orbit 2, economizer 3, the first water pipe connect
First 5, first water pipe head 6, main road water inlet pipe 9, main road outlet pipe 10, bypass water pipe 11, outlet pipe 12 and closed shell 13,
The design of 3 comb of economizer, i.e. economizer 3 are constituted including several conduit arrangements, are cavity and connection in pipeline, are retained between pipeline
Gap, the gap of economizer 3 is for allowing flue gas to pass through, it is preferable that economizer 3 is rectangular shape.The pipeline of economizer 3 is sky
Cavity configuration is interstitial structure between the pipeline of economizer 3, i.e., stays between pipeline for allowing cooling water to pass through from tube cavity
There is gap, for allowing flue gas to pass through from the gap of economizer, by the heat transfer of flue gas in economizer 3 during passing through
The cooling water in portion realizes the exchange of heat.Economizer 3 is mounted in closed shell 13, is distinguished in the both ends of the surface of closed shell 13
Connecting hole is opened up, connecting hole is provided with the center of closed 13 both ends of the surface of shell, and admission line 1 is connect with a connecting hole, out
Feed channel 12 is connect with another connecting hole, can ensure that flue gas is allowed to pass through from the gap of economizer 3 as homogeneously as possible in this way.It saves
Coal device 3 is arranged between admission line 1 and outlet pipe 12, the center face connecting hole of economizer 3, the pipeline enclosure of economizer 3
Gap is connected to admission line 1 and outlet pipe 12, and the flue gas being passed through from admission line 1 is behind the gap of economizer 3 from outlet
After being discharged in pipeline 12, into the electric precipitator being connect with outlet pipe 12.
As a certain embodiment of the utility model, it is also equipped with a circular orbit 2 in the inside of closed shell 13, is saved
The middle part of coal device 3 is connected on circular orbit 2, and economizer 3 can be rotated relative to circular orbit 2, it is preferable that economizer 3 and ring
It is connected between shape track 2 by steamboat 4, in this way convenient for rotating economizer 3, is reduced between economizer 3 and circular orbit 2
Friction, extend the service life of system.
Certainly, in the inside of closed shell 13 also mountable two circular orbits 2, the both ends of economizer 3 are connected to annular
On track 2, economizer 3 can be rotated relative to circular orbit 2, it is preferable that be connected between economizer 3 and circular orbit 2 by steamboat 4
It connects, in this way convenient for rotating economizer 3, reduces the friction between economizer 3 and circular orbit 2, extend the use of system
Service life.
Other than using the mounting means on economizer 3 and circular orbit 2, economizer 3 and bearing can be also directlyed adopt
Economizer 3, i.e., is fixedly connected on the inner ring of bearing by mounting means, and the outer ring of bearing is fixed on the inner wall of closed shell 13.
In addition, a hollow shaft directly can also be installed respectively in the both ends of the surface of economizer 3, hollow shaft turns along economizer 3
Shaft line installation, hollow shaft stretch out closed shell 13, bearing are equipped between hollow shaft and closed shell 13, economizer 3
Hollow shaft in both ends of the surface is connected to the tube cavity of economizer 3.One hollow shaft is connect with main road water inlet pipe 9, another is empty
Mandrel is connect with main road outlet pipe 10, is provided with the first valve 7 on main road water inlet pipe 9 and main road outlet pipe 10.Pass through this
Kind of connection type, can directly using hollow shaft as the connecting line of cooling water entry/exit economizer 3, meanwhile, hollow shaft with it is closed
Bearing is installed between shell 13, can by hollow shaft apply active force after so that economizer 3 rotate, and then change save coal
The leeward of device 3 and windward side.
As shown in Fig. 2, be respectively arranged in the both ends of the surface that economizer 3 is connect with circular orbit 2 first water pipe head 5 and
Second water pipe head 6, the first water pipe head 5 and the second water pipe head 6 are arranged along the pivot center of economizer (3), the first water pipe
Closed shell 13 is stretched out in connector 5 and the second water pipe head 6, and is provided with first between the first water pipe head 5 and closed shell 13
Bearing 14 is provided with first bearing 14 between second water pipe head 6 and closed shell 13.When rotating economizer 3, can pass through
The first water pipe head 5 and the second water pipe head 6 for stretching out shell are rotated, because being provided between water pipe head and shell
First bearing 14, therefore it is convenient for the rotation of economizer 3；When economizer 3 is worked, the first water pipe head 5 is intake with main road
Pipe 9 connects, and the second water pipe head 6 is connect with main road outlet pipe 10, because main road water inlet pipe 9 and main road outlet pipe 10 are to fix not
It is dynamic, thus economizer 3 can be connect by the first water pipe head 5 with main road water inlet pipe 9 and the second water pipe head 6 with it is main
Road outlet pipe 10 is connected and is fixed, and realizes the stable operation of equipment.First water pipe head 5 and the second water pipe head 6 with save coal
The tube cavity of device 3 is connected to, i.e. the first water pipe head 5 is connected to the second water pipe head 6 by the tube cavity of economizer 3.The
One water pipe head 5 is connect with main road water inlet pipe 9, and the second water pipe head 6 is connect with main road outlet pipe 10, main road water inlet pipe 9 with
The first valve 7 is provided on main road outlet pipe 10.In the case where system worked well, the first valve 7 is in the open state,
Cooling water is passed through from main road water inlet pipe 9, and cooling water flows after the tube cavity of economizer 3 absorbs heat from main road outlet pipe 10
Out.In addition, being connected with bypass water pipe 11 between main road water inlet pipe 9 and main road outlet pipe 10, is provided on bypass water pipe 11
Two valves 8.When the position of the leeward and windward side that need to change economizer 3, need for main road water inlet pipe 9 and main road to be discharged
The first valve 7 on pipe 10 is closed, and is opened the second valve 8, is allowed cooling water to flow through from bypass water pipe 11, it is ensured that not influencing power plant
It is safeguarded in the case where operation.
The specifically used method of the utility model are as follows: will from forecooler come out flue gas be passed through from admission line 1, flue gas from
The pipeline gap of economizer 3 passes through, while cooling water, cooling water are passed through into the tube cavity of economizer 3 from main road water inlet pipe 9
It in economizer 3 and after flue gas heat exchange, after the temperature of cooling water increases, is discharged from main road outlet pipe 10, into heat-energy secondary benefit
With in device, flue gas is discharged into electric precipitator from outlet pipe 12.
When the leeward of economizer 3 is more because of dust stratification, by external motor give economizer 3 provide power, economizer 3 into
Row rotation, allows economizer to be rotated by 90 ° along circular orbit or 180 °.Specifically, first closing the first valve 7, is opened simultaneously
Two valves 8, main road water inlet pipe 9 is separated with the first water pipe head 5, main road outlet pipe 10 is separated with the second water pipe head 6, so
It afterwards by economizer 3 using the center line of the first water pipe head 5 as axis, is rotated by 90 ° along circular orbit 2 or 180 °, finally by main road
Water inlet pipe 9 is connect with the first water pipe head 5, and main road outlet pipe 10 is connect with the second water pipe head 6, opens the first valve 7, together
When close the second valve 8.
Claims (9)
1. a kind of low low-level (stack-gas) economizer system of efficient anti-gray, it is characterised in that: including admission line (1), economizer (3) and go out
Feed channel (12), the admission line (1) are connected to outlet pipe (12), the economizer (3) setting admission line (1) with
Between outlet pipe (12), and economizer (3) can rotate and adjust air inlet face and the outlet face of economizer (3)；
One end face of economizer (3) is provided with the first water pipe head (5), and other end is provided with the second water pipe head (6), described
First water pipe head (5) and the second water pipe head (6) are arranged along the pivot center of economizer (3), first water pipe head
(5) it is connected to main road water inlet pipe (9), second water pipe head (6) is connected to main road outlet pipe (10).
2. a kind of low low-level (stack-gas) economizer system of efficient anti-gray according to claim 1, it is characterised in that: the main road into
The first valve (7) are provided on water pipe (9) and main road outlet pipe (10).
3. a kind of low low-level (stack-gas) economizer system of efficient anti-gray according to claim 2, it is characterised in that: the main road into
It is connected between water pipe (9) and main road outlet pipe (10) bypass water pipe (11), is provided with the second valve on the bypass water pipe (11)
Door (8).
4. a kind of low low-level (stack-gas) economizer system of efficient anti-gray according to claim 1, it is characterised in that: the economizer
(3) it is mounted in closed shell (13), the both ends of the surface of the closed shell (13) open up connecting hole, the admission line respectively
(1) it is connect with a connecting hole, the outlet pipe (12) connect with another connecting hole.
5. a kind of low low-level (stack-gas) economizer system of efficient anti-gray according to claim 4, it is characterised in that: the economizer
(3) it is arranged on circular orbit (2), economizer (3) can be rotated relative to circular orbit (2)；The circular orbit (2) is fixed on
The inner wall of closed shell is connect between economizer (3) and circular orbit (2) by steamboat (4).
6. a kind of low low-level (stack-gas) economizer system of efficient anti-gray according to claim 5, it is characterised in that: economizer (3)
It is connect between a circular orbit (2) by steamboat (4), circular orbit (2) is set in the middle part of economizer (3).
7. a kind of low low-level (stack-gas) economizer system of efficient anti-gray according to claim 5, it is characterised in that: economizer (3)
It is connect between two circular orbits (2) by steamboat (4), one of circular orbit (2) is set in the one of economizer (3)
End, another circular orbit (2) are set in the other end of economizer (3).
8. a kind of low low-level (stack-gas) economizer system of efficient anti-gray according to claim 4, it is characterised in that: the economizer
(3) it is fixedly connected on the inner ring of bearing, the outer ring of bearing is fixed on the inner wall of closed shell.
9. a kind of low low-level (stack-gas) economizer system of efficient anti-gray according to claim 4, it is characterised in that: first water
Closed shell (13) is stretched out in pipe fitting (5) and the second water pipe head (6), and the first water pipe head (5) and closed shell (13) it
Between be provided with first bearing (14), first bearing (14) are provided between the second water pipe head (6) and closed shell (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822099478.0U CN209279134U (en) | 2018-12-13 | 2018-12-13 | A kind of low low-level (stack-gas) economizer system of efficient anti-gray |
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| CN201822099478.0U CN209279134U (en) | 2018-12-13 | 2018-12-13 | A kind of low low-level (stack-gas) economizer system of efficient anti-gray |
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| CN209279134U true CN209279134U (en) | 2019-08-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442377A (en) * | 2018-12-13 | 2019-03-08 | 中国华能集团清洁能源技术研究院有限公司 | A kind of low low-level (stack-gas) economizer system and application method of efficient anti-gray |
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2018
- 2018-12-13 CN CN201822099478.0U patent/CN209279134U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442377A (en) * | 2018-12-13 | 2019-03-08 | 中国华能集团清洁能源技术研究院有限公司 | A kind of low low-level (stack-gas) economizer system and application method of efficient anti-gray |
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Effective date of registration: 20200508 Address after: 102209 Building A, Huaneng Innovation and Entrepreneurship Base, Future Science and Technology City, North Qijia Town, Changping District, Beijing Co-patentee after: Huaneng offshore wind power science and Technology Research Co., Ltd Patentee after: Huaneng Clean Energy Research Institute Address before: 102209 Building A, Huaneng Innovation and Entrepreneurship Base, Future Science and Technology City, North Qijia Town, Changping District, Beijing Patentee before: Huaneng Clean Energy Research Institute |