CN207486780U - A kind of economizer - Google Patents
A kind of economizer Download PDFInfo
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- CN207486780U CN207486780U CN201721406357.5U CN201721406357U CN207486780U CN 207486780 U CN207486780 U CN 207486780U CN 201721406357 U CN201721406357 U CN 201721406357U CN 207486780 U CN207486780 U CN 207486780U
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- pipe
- coiled pipe
- economizer
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- flue
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Abstract
The utility model is related to boiler matching equipment technical fields, disclose a kind of economizer, multiple coiled pipes including flue and in the flue, the coiled pipe is equipped with guard assembly, and the guard assembly includes being fixed on the protective cover on the coiled pipe and coated in the protective coating on the coiled pipe.The utility model has the following advantages and effect：This programme utilizes new mechanical structure; coiled pipe is installed on flue; and guard assembly is installed on coiled pipe; and guard assembly includes protective cover and protective coating, protective cover plays the role of reducing sweep of gases speed, and protective coating is coated in snakelike pipe surface; flue gas is avoided directly to be flushed on coiled pipe; it plays a protective role to coiled pipe, is arranged so as to fulfill muchly protection pipe, avoid leading to economizer failure and boiler shutdown because of pipe row's abrasion.
Description
Technical field
The utility model is related to boiler matching equipment technical field, more particularly to a kind of economizer.
Background technology
Coal is one of main energy sources of China, is the main energy sources of thermal power generation.Thermal power generation is by steam boiler
Water is heated into steam, then pushing turbine rotates what is generated electricity by combust fuel.Economizer is mounted to boiler tail cigarette
Road lower part is used to recycle a kind of device of discharged fume waste heat.And the pipe of economizer comes easy to wear under the washing away of flue gas, and leads
Cause boiler blowing out when economizer is revealed.A kind of low-temperature coal economizer tube bundle [notification number is disclosed in Chinese patent literature：
CN201475977U], the low-level (stack-gas) economizer original pipe including being mounted in tail vertical well gas flue is arranged, low-level (stack-gas) economizer original pipe row's
One end is connect with entrance header, and the other end is connect with outlet header, low-level (stack-gas) economizer original pipe row it is installed above have three row's false tubes,
The specification of the false tube is identical with low-level (stack-gas) economizer original pipe row.Above-mentioned technical proposal is pacified on low-level (stack-gas) economizer primary tube row
Three row's false tubes are filled, i.e., increase three combs newly on the basis of primary tube row, make key wear position on three newly-increased row's false tubes, with three
False tube is arranged to protect low-temperature coal economizer tube bundle.But protect the pipe of economizer row's effect ofer short duration using false tube, false tube is often ground
Damage a little all can greatly reduce the protection effect of false tube, for this purpose, there is an urgent need for a kind of anti abrasive protective devices to protect economizer
Pipe is arranged, and can muchly protection pipe be arranged, and avoids leading to economizer failure and boiler shutdown because of pipe row's abrasion.
Utility model content
The purpose of this utility model is to provide a kind of economizer, the protective device with protection economizer hand, can be permanent
Ground protection pipe row avoids leading to economizer failure and boiler shutdown because of pipe row's abrasion.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of economizer, including
Flue and multiple coiled pipes in the flue, the coiled pipe are equipped with guard assembly, and the guard assembly includes
The protective cover that is fixed on the coiled pipe and coated in the protective coating on the coiled pipe.
By using above-mentioned technical proposal, coiled pipe on flue is installed, guard assembly is installed on coiled pipe, and will be anti-
Protecting assembly is arranged to the combination of protective cover and protective coating, and protective cover plays the role of reducing sweep of gases speed, and protects and apply
Layer is coated in snakelike pipe surface, and flue gas is avoided directly to be flushed on coiled pipe, is played a protective role to coiled pipe, so as to fulfill length
Long ground protection pipe row avoids leading to economizer failure and boiler shutdown because of pipe row's abrasion.
The utility model is further arranged to, and the protective cover includes baffle, gauze and multiple supporting rods, the supporting rod
Be fixed on the snakelike pipe outer wall both sides, the baffle is fixed on the supporting rod, the gauze be fixed on the baffle it
Between.
By using above-mentioned technical proposal, protective cover is arranged to the combination of supporting rod, baffle and gauze, by baffle and branch
Strut is fixed, and mounted on coiled pipe both sides, and gauze is mounted between baffle, and flue gas need to be connect with coiled pipe again by gauze
It touches, gauze stops particulate matter larger in flue gas on gauze, so as to reduce the speed and strength of sweep of gases, to snakelike
Pipe plays better protective effect.
The utility model is further arranged to, the spacing being smaller than between its bottom between the baffle top.
By using above-mentioned technical proposal, between the spacing between at the top of baffle is set smaller than between baffle bottom
Away from so that flue gas by entering at the top of baffle after, gradually along baffle to both sides loss, reduced when flue gas reaches baffle bottom with this
Speed so as to reduce wash away dynamics of the flue gas to coiled pipe, preferably protects coiled pipe.
The utility model is further arranged to, and the protective coating includes concrete, is offered on the protective coating more
A pore.
By using above-mentioned technical proposal, protective layer is arranged to concrete coated in being formed, and protecting on coiled pipe
Pore is opened up on coating for flue gas to enter, most of flue gas can not be in direct contact under the isolation of protective coating with coiled pipe, and
The presence of pore enables partial fume to touch coiled pipe, is ensured with this in heat transfer to coiled pipe in flue gas, and protect
Coiled pipe is protected.
The utility model is further arranged to, and the coiled pipe both ends have been respectively communicated with import header and outlet header, institute
It states and water inlet pipe is communicated in import header, the water inlet pipe is equipped with inlet valve and water pump, is communicated with out on the outlet header
Water pipe, described outlet pipe one end are communicated with drum.
By using above-mentioned technical proposal, import header and outlet header are connected, and in import header at coiled pipe both ends
Upper setting water inlet pipe, water inlet pipe are equipped with inlet valve and water pump, outlet pipe are set on outlet header, and outlet pipe connects with drum
Logical, flow is pumped by water pump in water inlet pipe, and the heat drawn in flue gas is entered in coiled pipe using import header, is passed through later
Outlet header and outlet pipe enter in drum, complete feedwater route are formed with this, so that it is guaranteed that the suction to the heat in flue gas
It receives.
The utility model is further arranged to, and recirculation assembly is communicated on the drum, and the recirculation assembly includes and institute
The circulation pipe and the circulating valve on the circulation pipe for stating the connection of drum bottom, described circulation pipe one end and the import
Header communicates.
By using above-mentioned technical proposal, connect a recirculation assembly on drum, and recirculation assembly include circulation pipe and
Circulating valve, due to the intermittent startup of water pump, the feedwater of water inlet pipe discontinuous, when water inlet pipe stops intaking, the water in coiled pipe stops
Fluid stopping is moved, and constantly washing away and heat for high-temperature flue gas makes the water vapor in coiled pipe, the steam of generation is attached on tube wall, easily
Overtemperature of tube wall is caused to destroy, and the water in drum can be passed through in economizer by circulation pipe, and the water in coiled pipe is made to continue to flow, and be prevented
Only the tube wall of coiled pipe is overheated and is damaged.
The utility model is further arranged to, and the outlet header is equipped with temperature sensor, the temperature sensor electricity
It is connected with display.
By using above-mentioned technical proposal, the set temperature sensor on outlet header, and by temperature sensor with showing
Device is electrically connected so that the temperature in the outlet header sensed is transmitted in display by temperature sensor, and display can be shown
Temperature in outlet header, personnel easy to operation understand economizer working condition, so that it is guaranteed that the normal work of economizer.
The utility model is further arranged to, and the outlet header is equipped with sealant, the sealant and the flue
Outer wall is fixed.
By using above-mentioned technical proposal, sealant is set on outlet header, and sealant and flue outer wall are fixed,
While convenient for the fixation of outlet header, the effect for reinforcing outlet header is achieved, so as to prevent flow in outlet header
Leakage, it is ensured that the normal work of economizer.
The utility model is further arranged to, and deoxygenation component is additionally provided on the outlet header, and the deoxygenation component includes
Oxygen-eliminating device, connecting tube and keying valve, the connecting tube both ends connect respectively with the oxygen-eliminating device, the outlet header, described to open
Valve closing is mounted in the connecting tube
By using above-mentioned technical proposal, deoxygenation component is set on outlet header, and deoxygenation component includes oxygen-eliminating device, connects
Valve is taken over and opens and closes, connecting tube both ends connect respectively with oxygen-eliminating device, outlet header, open and close valve and are located in connecting tube, for controlling
Whether connected between outlet header and oxygen-eliminating device, oxygen-eliminating device plays the role of removing the oxygen for being dissolved in feedwater, so as to prevent province
Oxidation, the corrosion of coal device.
In conclusion the utility model has the advantages that：
The 1st, coiled pipe on flue is installed, and guard assembly is installed on coiled pipe, and guard assembly include protective cover and
Protective coating, protective cover play the role of reducing sweep of gases speed, and protective coating is coated in snakelike pipe surface, avoids flue gas straight
It connects and is flushed on coiled pipe, play a protective role to coiled pipe, arranged so as to fulfill muchly protection pipe, avoid leading because of pipe row's abrasion
Cause economizer failure and boiler shutdown；
2nd, the set temperature sensor on outlet header, and temperature sensor is electrically connected with display so that display
It can show the temperature in outlet header, personnel easy to operation understand economizer working condition, so that it is guaranteed that the normal work of economizer
Make；
The 3rd, deoxygenation component is set on outlet header, and deoxygenation component includes oxygen-eliminating device, connecting tube and opens and closes valve, oxygen-eliminating device
Play the role of removing the oxygen for being dissolved in feedwater, so as to prevent the oxidation of economizer, corrosion.
Description of the drawings
Fig. 1 is the overall structure diagram of embodiment；
Fig. 2 is the structure diagram of guard assembly in embodiment.
In figure：1st, flue；2nd, import header；21st, water inlet pipe；22nd, inlet valve；3rd, coiled pipe；4th, outlet header；41st, go out
Water pipe；42nd, sealant；5th, drum；6th, guard assembly；61st, protective cover；611st, baffle；612nd, supporting rod；613rd, gauze；62nd, prevent
Protect coating；621st, pore；7th, deoxygenation component；71st, valve is opened and closed；72nd, connecting tube；8th, temperature sensor；9th, recirculation assembly；91st, it follows
Endless tube；92nd, circulating valve；10th, display；11st, water pump.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of economizer, including flue 1, coiled pipe 3, import header 2, outlet header 4 and drum 5, cigarette
Road 1 is made of two walls, and coiled pipe 3 is snakelike, is vertically installed in flue 1, and is distributed along 1 side wall equidistant arrangement of flue, snake
The pipeline of 3 upper and lower ends of shape pipe is horizontal-extending and through 1 side wall of flue, and 3 upper end of coiled pipe and outlet header 4 and connects,
Lower end is connected with import header 2.
As shown in Figure 1, Figure 2, 3 top of coiled pipe is equipped with guard assembly 6, guard assembly 6 includes protective cover 61 and protection
Coating 62, protective cover 61 include supporting rod 612, baffle 611 and gauze 613, supporting rod 612 have it is multiple, along the top of coiled pipe 3
The equidistant arrangement distribution of outer wall both sides, bottom are fixed with 3 outer wall of coiled pipe, and top upwardly extends and fixed with baffle 611.Baffle
611 are tilted towards inside front extension by the one end being connected with supporting rod 612, and bending later extends upwardly to the other end.Its top
Between the spacing being smaller than between 611 bottom of baffle so that after flue gas is entered by the top of baffle 611, gradually along baffle 611
To both sides loss, speed when flue gas reaches 611 bottom of baffle is reduced with this, so as to reduce scouring force of the flue gas to coiled pipe 3
Degree preferably protects coiled pipe 3.
Gauze 613 is mounted on 611 top of baffle, and both ends are fixed respectively with the baffle of both sides 611, to filter in flue gas
Particulate matter.Protective coating 62 is formed, and offer multiple pores 621, pore thereon by concrete coated in 3 surface of coiled pipe
621 extend inwardly on 3 outer wall of coiled pipe, and most of flue gas can not directly connect under the isolation of protective coating 62 with coiled pipe 3
It touches, and the presence of pore 621 enables partial fume to touch coiled pipe 3.
As shown in Figure 1,2 one end of import header is communicated with water inlet pipe 21, inlet valve 22 and water pump 11, water pump 11 which is provided with
Positioned at 21 side of water inlet pipe, water is delivered in import header 2 by water pump 11 when opening, and when inlet valve 22 is opened, flow can be smooth
Into in import header 2, when inlet valve 22 is closed, flow is blocked in water inlet pipe 21, and the intermittent unlatching of water pump 11 so that
21 discontinuous of water inlet pipe is intake.
Outlet header 4 is equipped with sealant 42, and in a rectangular parallelepiped shape, one side is fixedly connected sealant 42 with 1 outer wall of flue,
Sealant 42 is poured into a mould by concrete, for reinforcing outlet header 4.It is communicated with more outlet pipes 41 on outlet header 4, more
Outlet pipe 41 is along 4 length direction arranged distribution of outlet header, and 41 one end of outlet pipe is connected with drum 5.4 upper surface of outlet header
The temperature sensor 8 of the temperature in outlet header 4 can be sensed by being equipped with.
Drum 5 is cylindrical shape, and one side is equipped with display 10, and display 10 is electrically connected with temperature sensor 8, and temperature passes
Temperature in the outlet header 4 sensed is transmitted in display 10 by sensor 8, and display 10 can be shown in outlet header 4
Temperature, personnel easy to operation understand economizer working condition.
5 downside of drum is communicated with circulation pipe 91, and 91 one end of circulation pipe extends downwardly, bent when extending to bottom to inlet header
Case 2, and communicated with import header 2.Circulation pipe 91 is a part for recirculation assembly 9, and recirculation assembly 9 is further included for control loop
The circulating valve 92 that pipe 91 is opened and closed, circulating valve 92 are mounted on circulation pipe 91, and due to 11 intermittent startup of water pump, water inlet pipe 21 is interrupted
Formula feeds water, and when water inlet pipe 21 stops intaking, pressure opening circulating valve 92, the water in drum 5 can flow down in its gravity and pressure effect
It moves into economizer.
Deoxygenation component 7 is additionally provided on outlet header 4, deoxygenation component 7 includes oxygen-eliminating device（It is not shown）, open and close valve 71 and connection
Pipe 72,72 both ends of connecting tube connect respectively with outlet header 4 and oxygen-eliminating device, open and close valve 71 and are arranged in connecting tube 72, for controlling
Whether connected between outlet header 4 and oxygen-eliminating device processed.
Coiled pipe 3 when in use, need to only be mounted in flue 1, import header 2 and outlet header 4 are pacified by the present embodiment
Mounted in 1 outside of flue, and each pipeline and valve are installed so that flow can be entered by water inlet pipe 21, by import header 2
Enter in drum 5 into coiled pipe 3, then by outlet header 4 and outlet pipe 41, complete feedwater route is formed with this.It
Supporting rod 612 is welded on 3 top of coiled pipe afterwards, and concrete is coated in 3 surface of coiled pipe and forms protective coating 62, later
Baffle 611 and gauze 613 is mounted thereto, complete the installation of guard assembly 6.
Inlet valve 22 when in use, need to only be opened, water pump 11 is opened by economizer, and flow is entered snakelike by water inlet pipe 21
In pipe 3, the flue gas in flue 1 is constantly flushed on coiled pipe 3 at this time, and partial fume can not be under the isolation of protective coating 62
Coiled pipe 3 is in direct contact, and partial fume is contacted by pore 621 with 3 outer wall of coiled pipe, and the water flow temperature in coiled pipe 3 is relatively low,
Heat is transferred to by 3 tube wall of coiled pipe in flow, is constantly flowed under flow action, after flowing to outlet header 4, at more
Enter in drum 5 under the shunting of outlet pipe 41, the function of flue gas heat is absorbed so as to fulfill economizer, and in guard assembly 6
It avoids leading to economizer failure and boiler shutdown because of the abrasion of coiled pipe 3 under protection.
Due to 11 intermittent startup of water pump, 21 discontinuous of water inlet pipe feeds water, when water inlet pipe 21 stops intaking, coiled pipe 3
Interior water stops flowing, and constantly washing away and heat for high-temperature flue gas makes the water vapor in coiled pipe 3, the steam of generation is attached to
On tube wall, overtemperature of tube wall destruction is easily caused, only needs pressure opening circulating valve 92 at this time, the water in drum 5 can be made in its gravity and pressure
It is flowed in economizer under, the flow in coiled pipe 3 is made to continue to flow, so as to which coiled pipe 3 be avoided to damage.
This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability
Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but
As long as it is all protected in the right of the utility model by Patent Law.
Claims (9)
1. a kind of economizer, multiple coiled pipes (3) including flue (1) and in the flue (1), it is characterized in that：Institute
Coiled pipe (3) is stated equipped with guard assembly (6), the guard assembly (6) includes the protective cover that is fixed on the coiled pipe (3)
(61) and coated in the protective coating (62) on the coiled pipe (3).
2. a kind of economizer according to claim 1, it is characterized in that：The protective cover (61) includes baffle (611), gauze
(613) and multiple supporting rods (612), the supporting rod (612) are fixed on the coiled pipe (3) outer wall both sides, the baffle
(611) it is fixed on the supporting rod (612), the gauze (613) is fixed between the baffle (611).
3. a kind of economizer according to claim 2, it is characterized in that：It is smaller than between at the top of the baffle (611)
Spacing between its bottom.
4. a kind of economizer according to claim 1, it is characterized in that：The protective coating (62) includes concrete, described
Multiple pores (621) are offered on protective coating (62).
5. a kind of economizer according to claim 1, it is characterized in that：Coiled pipe (3) both ends have been respectively communicated with import
Header (2) and outlet header (4) are communicated with water inlet pipe (21) and water pump (11), the water inlet pipe on the import header (2)
(21) inlet valve (22) is equipped with, outlet pipe (41), outlet pipe (41) one end connection are communicated on the outlet header (4)
There is drum (5).
6. a kind of economizer according to claim 5, it is characterized in that：Recirculation assembly (9) is communicated on the drum (5),
The recirculation assembly (9) is including the circulation pipe (91) that is connected with the drum (5) bottom and mounted on the circulation pipe (91)
On circulating valve (92), described circulation pipe (91) one end is communicated with the import header (2).
7. a kind of economizer according to claim 5, it is characterized in that：The outlet header (4) is equipped with temperature sensor
(8), the temperature sensor (8) is electrically connected with display (10).
8. a kind of economizer according to claim 5, it is characterized in that：The outlet header (4) is equipped with sealant (42),
The sealant (42) is fixed with the flue (1) outer wall.
9. a kind of economizer according to claim 5, it is characterized in that：Deoxygenation component is additionally provided on the outlet header (4)
(7), the deoxygenation component (7) include oxygen-eliminating device, connecting tube (72) and open and close valve (71), connecting tube (72) both ends respectively with
The oxygen-eliminating device, the outlet header (4) connection, the keying valve (71) is in the connecting tube (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721406357.5U CN207486780U (en) | 2017-10-26 | 2017-10-26 | A kind of economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721406357.5U CN207486780U (en) | 2017-10-26 | 2017-10-26 | A kind of economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207486780U true CN207486780U (en) | 2018-06-12 |
Family
ID=62477786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721406357.5U Active CN207486780U (en) | 2017-10-26 | 2017-10-26 | A kind of economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207486780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925740A (en) * | 2019-12-04 | 2020-03-27 | 西安雯墨电子科技有限公司 | Anti-blocking economizer |
-
2017
- 2017-10-26 CN CN201721406357.5U patent/CN207486780U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925740A (en) * | 2019-12-04 | 2020-03-27 | 西安雯墨电子科技有限公司 | Anti-blocking economizer |
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