CN207438559U - The waterworks of boiler economizer - Google Patents
The waterworks of boiler economizer Download PDFInfo
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- CN207438559U CN207438559U CN201721268265.5U CN201721268265U CN207438559U CN 207438559 U CN207438559 U CN 207438559U CN 201721268265 U CN201721268265 U CN 201721268265U CN 207438559 U CN207438559 U CN 207438559U
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- feedwater
- charge
- economizer
- waterworks
- heat exchange
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Abstract
The utility model discloses a kind of waterworks of boiler economizer, the economizer includes：Economizer body, the both ends of economizer body are respectively smoke inlet and outlet flue, heat exchange coil is provided in economizer body, the both ends of heat exchange coil are respectively inlet and outlet, feed pipe is communicated on water inlet, feed pipe is in charge of to be in charge of with the second feedwater with the first feedwater and be connected, first feedwater is in charge of to be in charge of with the second feedwater and is connected respectively with water main by a triple valve, second feedwater, which is in charge of, is connected with preheating mechanism, and the water during the second feedwater is in charge of enters the output terminal output being in charge of again from the second feedwater after preheating mechanism heats.The utility model has the advantage of：Can effectively avoid the smoke temperature of economizer outlet flue too low, so as to avoid occur low-temperature corrosion the phenomenon that.
Description
Technical field
The utility model is related to boiler technology fields, and in particular to the waterworks of boiler economizer.
Background technology
Boiler is mainly made of several parts such as burner hearth, drum, superheater, economizer.The flue gas generated using different fuel
Temperature it is different, the smoke temperature of the exhanst gas outlet side of economizer is too low, the rigidity material such as heat exchanger tube, economizer inner wall in economizer
Parts can then generate low-temperature corrosion, so as to easily causing the accidents such as economizer leak.In order to solve this technical problem, I
Company has developed the waterworks of boiler economizer.
Utility model content
The utility model technical issues that need to address are：A kind of boiler economizer for being avoided that and generating low-temperature corrosion is provided
Waterworks.
To solve the above problems, the technical solution adopted in the utility model is：The waterworks of boiler economizer, the province
Coal device includes：Economizer body, the both ends of economizer body are respectively smoke inlet and outlet flue, are provided with and change in economizer body
Hot coil, the both ends of heat exchange coil are respectively inlet and outlet, and feed pipe is communicated on water inlet, and feed pipe is given with first
Moisture pipe and the second feedwater are in charge of and are connected, the first feedwater be in charge of with the second feedwater be in charge of by a triple valve respectively with feedwater
Manifold is connected, and the second feedwater is in charge of and is connected with preheating mechanism, and the water during the second feedwater is in charge of enters preheating mechanism and adds
The output terminal output being in charge of again from the second feedwater after heat.
Further, the waterworks of foregoing boiler economizer, wherein, the preheating mechanism is arranged on drum
It is interior.
Further, the waterworks of foregoing boiler economizer, wherein, preheating the structure of mechanism includes：It sets
Heat-exchanging tube bundle in drum, every heat exchanger tube in heat-exchanging tube bundle are U heat exchange, the water inlet end of U heat exchange with
Distributing manifold is connected, and the water outlet of U heat exchange is connected with collecting collector, and the distributing manifold is with being arranged on drum
On preheating water inlet pipe be connected, the collector that collects is connected with the preheating outlet pipe being arranged on drum, drum
On preheating water inlet pipe and preheating outlet pipe be connected to the second feedwater and be in charge of.
Further, the waterworks of foregoing boiler economizer, wherein, survey is provided in the outlet flue of economizer body
Warm device.
Further, the waterworks of foregoing boiler economizer, wherein, the output terminal that the second feedwater is in charge of is provided with electricity
Magnet valve.
The utility model has the advantages that：The first feedwater is set to be in charge of with second to moisture between water main and feed pipe
Pipe, so once the temperature of discovery economizer body outlet flue is less than setting value, the water in water main can then be introduced into the
It is preheated in the preheating mechanism that two feedwater are in charge of, so as to be preheated to entering the water in economizer, thus
Be avoided that the smoke temperature of economizer outlet flue is too low, so as to avoid occur low-temperature corrosion the phenomenon that.In addition, preheating mechanism is arranged on
It is such simple in structure, compact in the drum of boiler, not only save equipment cost, moreover it is possible to save the space of hold facility.
Description of the drawings
Fig. 1 is the structure diagram of the waterworks of boiler economizer described in the utility model.
Specific embodiment
The utility model is described in further detail with preferred embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, the waterworks of boiler economizer, the economizer 1 includes：Economizer body 11, economizer sheet
The both ends of body 11 are respectively smoke inlet 12 and outlet flue 13, and thermal detector is provided in the outlet flue 13 of economizer body 11.Save coal
It is provided with heat exchange coil 14 in device body 11, the both ends of heat exchange coil 14 are respectively water inlet 15 and water outlet 16, water inlet 15
On be communicated with feed pipe 2.Feed pipe 2 and the first feedwater be in charge of 3 and second feedwater be in charge of 4 and be connected, the first feedwater is in charge of 3 and the
Two feedwater are in charge of 4 and are connected respectively with water main 6 by a triple valve 5.The output terminal that second feedwater is in charge of 4 is provided with electricity
Magnet valve 41.Second feedwater, which is in charge of on 4, is provided with preheating mechanism, and the water that the second feedwater is in charge of in 4 enters preheating mechanism heats
It is in charge of 4 output terminal output from the second feedwater again afterwards.Preheating mechanism described in the present embodiment is arranged in drum 7.Pre-add
The structure of heat engine structure includes：The heat-exchanging tube bundle 8 being arranged in drum 7, every heat exchanger tube in heat-exchanging tube bundle 8 is U-shaped heat exchange
Pipe, the water inlet end of U heat exchange are connected with distributing manifold 9, and the water outlet of U heat exchange is connected with collecting collector 10
Logical, the distributing manifold 9 is connected with the preheating water inlet pipe 71 being arranged on drum 7, and described collects collector 10 with setting
The preheating outlet pipe 72 put on drum 7 is connected, and the preheating water inlet pipe 71 on drum 7 and preheating outlet pipe 72 are distinguished
The second feedwater is connected to be in charge of on 4.
Operation principle is as follows：Under normal operation, triple valve 5 on second feedwater be in charge of 4 one end close, second to
The solenoid valve 41 of 4 output terminal of moisture pipe is closed, outside feedwater pass sequentially through water main 6, first feedwater be in charge of 3, feed pipe 2 into
Enter into the heat exchange coil 14 in economizer body 11.When the temperature that the thermal detector in the outlet flue 13 of economizer body 11 measures
During less than set temperature value, then illustrate that flue-gas temperature is too low in the outlet flue 13 of economizer body 11, triple valve 5 is at this time
One end that one feedwater is in charge of 3 is closed, and one end that triple valve 5 is in charge of 4 on the second feedwater is opened, while to be in charge of 4 defeated for the second feedwater
The solenoid valve 41 of outlet is opened, and outside feedwater enters to the second feedwater by water main 6 and is in charge of in 4, and the second feedwater is in charge of in 4
The preheating mechanism that is introduced into drum 7 of water in preheated, the output terminal that 4 are then in charge of from the second feedwater passes through feedwater
Pipe 2 is entered in the heat exchange coil 14 in economizer body 11, since the water in heat exchange coil 14 is preheated, is absorbed
The heat of flue gas is opposite into economizer body 11 is reduced, and the temperature of flue gas is then in the outlet flue 13 of such economizer body 11
Setting value is not less than, this just can effectively be avoided the generation of low-temperature corrosion.
The utility model has the advantage of：When the temperature for finding 1 outlet flue 13 of economizer body is less than setting value, give
Water in supply mains 6 can then be introduced into the preheating mechanism that the second feedwater is in charge of on 4 and be preheated, so as to save coal to entering
Water in device 1 is preheated, and is thus avoided that the smoke temperature of 1 outlet flue 13 of economizer is too low, so as to avoid occurring low temperature corruption
The phenomenon that erosion.In addition, preheating mechanism is arranged in the drum 7 of boiler, and it is such simple in structure, compact, not only save equipment
Cost, moreover it is possible to save the space of hold facility.
Claims (5)
1. the waterworks of boiler economizer, the economizer includes：Economizer body, the both ends of economizer body be respectively into
Mouth and outlet flue are provided with heat exchange coil in economizer body, and the both ends of heat exchange coil are respectively inlet and outlet, into
Feed pipe is communicated on the mouth of a river, it is characterised in that：Feed pipe is in charge of to be in charge of with the second feedwater with the first feedwater and be connected, and first gives
Moisture pipe and the second feedwater are in charge of and are connected respectively with water main by a triple valve, the second feedwater be in charge of be connected with it is pre-
Heating arrangements, the water during the second feedwater is in charge of enter the output terminal output being in charge of again from the second feedwater after preheating mechanism heats.
2. the waterworks of boiler economizer according to claim 1, it is characterised in that：The preheating mechanism is set
In drum.
3. the waterworks of boiler economizer according to claim 2, it is characterised in that：Preheat the structure bag of mechanism
It includes：The heat-exchanging tube bundle being arranged in drum, every heat exchanger tube in heat-exchanging tube bundle are U heat exchange, the water inlet of U heat exchange
End is connected with distributing manifold, and the water outlet of U heat exchange is connected with collecting collector, the distributing manifold and setting
Preheating water inlet pipe on drum is connected, and the collector that collects is connected with the preheating outlet pipe being arranged on drum
Logical, preheating water inlet pipe and preheating outlet pipe on drum are connected to the second feedwater and are in charge of.
4. the waterworks of the boiler economizer according to claim 1 or 2 or 3, it is characterised in that：Economizer body
Thermal detector is provided in outlet flue.
5. the waterworks of the boiler economizer according to claim 1 or 2 or 3, it is characterised in that：Second feedwater is in charge of
Output terminal be provided with solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721268265.5U CN207438559U (en) | 2017-09-29 | 2017-09-29 | The waterworks of boiler economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721268265.5U CN207438559U (en) | 2017-09-29 | 2017-09-29 | The waterworks of boiler economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207438559U true CN207438559U (en) | 2018-06-01 |
Family
ID=62295687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721268265.5U Active CN207438559U (en) | 2017-09-29 | 2017-09-29 | The waterworks of boiler economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207438559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631287A (en) * | 2017-09-29 | 2018-01-26 | 苏州海陆重工股份有限公司 | The waterworks of boiler economizer |
-
2017
- 2017-09-29 CN CN201721268265.5U patent/CN207438559U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631287A (en) * | 2017-09-29 | 2018-01-26 | 苏州海陆重工股份有限公司 | The waterworks of boiler economizer |
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